release v0.18.3

doc/developer: add text from the wiki
Makefile.am: disable dist-bzip2
2013-11-08 12:55:12 +01:00 · 2013-11-08 12:54:16 +01:00 · 2013-11-08 12:29:56 +01:00 · 2013-11-08 12:29:04 +01:00 · 2013-11-08 12:26:07 +01:00 · 2013-11-08 12:15:05 +01:00
1010 changed files with 67869 additions and 57041 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,11 @@
 *.Plo
 *.Po
 *.a
-*.bz2
 *.d
-*.gz
 *.la
 *.lo
 *.o
+*.exe
 .deps
 .dirstamp
 Makefile
@@ -33,7 +32,6 @@ ltmain.sh
 missing
 mkinstalldirs
 mpd
-mpd.exe
 mpd.service
 stamp-h1
 tags
@@ -41,6 +39,7 @@ tags
 .#*
 .stgit*
 src/dsd2pcm/dsd2pcm
+src/win/mpd_win32_rc.rc
 doc/doxygen.conf
 doc/protocol.html
 doc/protocol
@@ -67,3 +66,15 @@ test/run_ntp_server
 test/run_resolver
 test/run_tcp_connect
 test/test_pcm
+test/dump_rva2
+test/dump_text_file
+test/test_util
+test/test_byte_reverse
+test/test_mixramp
+test/test_vorbis_encoder
+test/DumpDatabase
+
+/*.tar.gz
+/*.tar.bz2
+/*.tar.xz
+/mpd-*/
--- a/94
+++ b/94
@@ -1,67 +1,31 @@
-Current Developers
------------------
+Music Player Daemon - http://www.musicpd.org
+Copyright (C) 2003-2013 The Music Player Daemon Project

-Avuton Olrich <avuton@gmail.com>
-	release manager
+The following people have contributed code to MPD:

-Max Kellermann <max@duempel.org>
-	lead developer
-
-Laszlo Ashin <kodest@gmail.com>
-	WavPack support
-
-Viliam Mateicka <viliam.mateicka@gmail.com>
-	FFmpeg support, mixer and archive API
-
-Eric Wollesen <encoded@xmtp.net>
-	encoder API, shout output
-
-Thomas Jansen <mithi@mithi.net>
-	multithreading tweaks, miscellaneous
-
-Romain Bignon <romain@peerfuse.org>
-	playlist manipulation
-
-David Guibert <david.guibert@gmail.com>
-	PulseAudio mixer
-
-Jochen Keil <jochen.keil@gmail.com>
-	CUE sheet support
-
-Jeffrey Middleton <jefromi@gmail.com>
-	playlist manipulation
-
-Sean McNamara <smcnam@gmail.com>
-	WIN32 compatibility
-
-
-Former Developers
-----------------
-
-Warren Dukes <warren.dukes@gmail.com>
-	former lead developer and project founder
-
-Niklas Hofer
-	'next' and 'previous' patch
-
-Jim Ramsay <i.am@jimramsay.com>
-	Zerconf/avahi support
-
-Guus Sliepen <guus@sliepen.eu.org>
-	libsamplerate code
-
-J. Alexander Treuman <jat@spatialrift.net>
-	general, MP3, ID3, PulseAudio, format conversion, stored playlists
-	AudioCompress, much much more...
-
-Eric Wong
-	former lead developer
-
-José Anarch <anarchsss@gmail.com>
-	JACK plugin
-
-Patrik Weiskircher <pat@icore.at>
-	Stored playlist commands
-
-Nick Welch <mack@incise.org>
-	Sighandlers
+ Warren Dukes <warren.dukes@gmail.com>
+ Avuton Olrich <avuton@gmail.com>
+ Max Kellermann <max@duempel.org>
+ Laszlo Ashin <kodest@gmail.com>
+ Viliam Mateicka <viliam.mateicka@gmail.com>
+ Eric Wollesen <encoded@xmtp.net>
+ Thomas Jansen <mithi@mithi.net>
+ Romain Bignon <romain@peerfuse.org>
+ David Guibert <david.guibert@gmail.com>
+ Jochen Keil <jochen.keil@gmail.com>
+ Jeffrey Middleton <jefromi@gmail.com>
+ Sean McNamara <smcnam@gmail.com>
+ Niklas Hofer
+ Jim Ramsay <i.am@jimramsay.com>
+ Guus Sliepen <guus@sliepen.eu.org>
+ J. Alexander Treuman <jat@spatialrift.net>
+ Eric Wong
+ José Anarch <anarchsss@gmail.com>
+ Patrik Weiskircher <pat@icore.at>
+ Nick Welch <mack@incise.org>
+ Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+ Anton Khirnov <anton@khirnov.net>
+ Simon Kagstrom <simon.kagstrom@gmail.com>
+ Denis Krjuchkov <denis@crazydev.net>
+ Jurgen Kramer <gtmkramer@xs4all.nl>
+ Jean-Francois Dockes <jf@dockes.org>
--- a/51
+++ b/51
@@ -3,17 +3,20 @@

 Introduction
 ------------
+
 This document is a very small amount of documentation about what is needed to 
-install MPD. If more information is desired see the community wiki at 
-http://mpd.wikia.com.
+install MPD.  If more information is desired, read the user manual:
+
+ http://www.musicpd.org/doc/user/

 Dependencies
 ------------

-gcc - http://gcc.gnu.org/
-Any other C99 compliant compiler should also work.
+gcc 4.6 or later - http://gcc.gnu.org/
+clang 3.2 or later - http://clang.llvm.org/
+Any other C++11 compliant compiler should also work.

-GLib 2.16 - http://www.gtk.org/
+GLib 2.28 - http://www.gtk.org/
 General-purpose utility library.


@@ -37,15 +40,9 @@ Linux.  You will need libasound.
 FIFO
 This is a mostly undocumented, developer plugin to transmit raw data.

-MVP - http://en.wikipedia.org/wiki/Hauppauge_MediaMVP
-A network media player.
-
 OSS - http://www.opensound.com
 Open Sound System.

-OSX - http://www.apple.com
-Necessary if you are on Mac OSX.
-
 PulseAudio - http://www.pulseaudio.org/
 An advanced sound daemon.  You will need libpulse.

@@ -59,9 +56,6 @@ You also need an encoder: either libvorbisenc (ogg), or liblame (mp3).
 OpenAL - http://kcat.strangesoft.net/openal.html
 Open Audio Library

-libffado - http://www.ffado.org/
-For FireWire audio devices.
-

 Optional Input Dependencies
 ---------------------------
@@ -81,14 +75,17 @@ Alternative for MP3 support.
 Ogg Vorbis - http://www.xiph.org/ogg/vorbis/
 For Ogg Vorbis support.  You will need libogg and libvorbis.

+libopus - http://www.opus-codec.org/
+Opus codec support
+
 FLAC - http://flac.sourceforge.net/
-For FLAC support.  You will need version 1.1.0 or higher of libflac.
+For FLAC support.  You will need version 1.2 or higher of libFLAC.

 Audio File - http://www.68k.org/~michael/audiofile/
 For WAVE, AIFF, and AU support.  You will need libaudiofile.

 FAAD2 - http://www.audiocoding.com/
-For MP4/AAC support.  You will need libmp4ff.
+For MP4/AAC support.

 libmpcdec - http://www.musepack.net/
 For Musepack support.
@@ -105,7 +102,7 @@ For C64 SID support.
 libfluidsynth - http://fluidsynth.resonance.org/
 For MIDI support.

-libwildmidi - http://wildmidi.sourceforge.net/
+libwildmidi 0.2.3 - http://wildmidi.sourceforge.net/
 For MIDI support.

 libsndfile - http://www.mega-nerd.com/libsndfile/
@@ -114,6 +111,9 @@ WAVE, AIFF, and many others.
 libwavpack - http://www.wavpack.com/
 For WavPack playback.

+libadplug - http://adplug.sourceforge.net/
+For AdLib playback.
+
 despotify - https://github.com/SimonKagstrom/despotify
 For Spotify playback.

@@ -163,13 +163,9 @@ Get the latest release from of MPD from <http://www.musicpd.org/>.
 Compile
 -------

-1) unzip and untar the archive
+1) unpack the archive

-$ tar zxvf mpd-x.x.x.tar.gz
-
-or
-
-$ tar jxvf mpd-x.x.x.tar.bz2
+$ tar xf mpd-x.x.x.tar.xz

 2) change to directory created

@@ -196,9 +192,9 @@ Run

 $ mpd <config file>

-First default is ~/.mpdconf then ~/.mpd/mpd.conf then /etc/mpd.conf. If
-neither of these exist a mpd configuration file must be specified at
-runtime.
+First default is $XDG_CONFIG_HOME/mpd/mpd.conf then ~/.mpdconf then
+~/.mpd/mpd.conf then /etc/mpd.conf. If neither of these exist a mpd
+configuration file must be specified at runtime.

 A sample config file is included with the source of MPD, mpdconf.example.

@@ -210,6 +206,5 @@ Using MPD
 ---------

 You can download many different interfaces for MPD at 
-	<http://mpd.wikia.com/wiki/Clients>

-MPD can be interfaced directly using telnet (see COMMANDS, if you are brave).
+ http://www.musicpd.org/clients/
--- a/Makefile.am
+++ b/Makefile.am
--- a/117
+++ b/117
@@ -1,3 +1,120 @@
+ver 0.18.3 (2013/11/08)
+* fix stuck MPD after song change (0.18.2 regression)
+
+ver 0.18.2 (2013/11/07)
+* protocol:
+  - "close" flushes the output buffer
+* input:
+  - cdio_paranoia: add setting "default_byte_order"
+  - curl: fix bug with redirected streams
+* playlist:
+  - pls: fix reversed song order
+* decoder:
+  - audiofile: require libaudiofile 0.3 due to API breakage
+  - dsf: enable DSD128
+* enable buffering when starting playback (regression fix)
+* fix build failures due to missing includes
+* fix big-endian support
+
+ver 0.18.1 (2013/11/04)
+* protocol:
+  - always ignore whitespace at the end of the line
+* networking:
+  - log UNIX domain path names instead of "localhost"
+  - open listener sockets in the order they were configured
+  - don't abort if IPv6 is not available
+* output:
+  - alsa: avoid endless loop in Raspberry Pi workaround
+* filter:
+  - autoconvert: fix "volume_normalization" with mp3 files
+* add missing files to source tarball
+
+ver 0.18 (2013/10/31)
+* configuration:
+  - allow tilde paths for socket
+  - default filesystem charset is UTF-8 instead of ISO-8859-1
+  - increase default buffer size to 4 MB
+* protocol:
+  - new command "readcomments" lists arbitrary file tags
+  - new command "toggleoutput"
+  - "find"/"search" with "any" does not match file name
+  - "search" and "find" with base URI (keyword "base")
+  - search for album artist falls back to the artist tag
+  - re-add the "volume" command
+* input:
+  - curl: enable https
+  - soup: plugin removed
+* playlist:
+  - lastfm: remove defunct Last.fm support
+* decoder:
+  - adplug: new decoder plugin using libadplug
+  - dsf: don't play junk at the end of the "data" chunk
+  - ffmpeg: drop support for pre-0.8 ffmpeg
+  - flac: require libFLAC 1.2 or newer
+  - flac: support FLAC files inside archives
+  - opus: new decoder plugin for the Opus codec
+  - vorbis: skip 16 bit quantisation, provide float samples
+  - mikmod: add "loop" configuration parameter
+  - modplug: add "loop_count" configuration parameter
+  - mp4ff: obsolete plugin removed
+* encoder:
+  - opus: new encoder plugin for the Opus codec
+  - vorbis: accept floating point input samples
+* output:
+  - new option "tags" may be used to disable sending tags to output
+  - alsa: workaround for noise after manual song change
+  - ffado: remove broken plugin
+  - httpd: support HEAD requests
+  - mvp: remove obsolete plugin
+  - osx: disabled by default because it's unmaintained and unsupported
+* improved decoder/output error reporting
+* eliminate timer wakeup on idle MPD
+* fix unresponsive MPD while waiting for stream
+* port of the source code to C++11
+
+ver 0.17.6 (2013/10/14)
+* mixer:
+  - alsa: fix busy loop when USB sound device gets unplugged
+* decoder:
+  - modplug: fix build with Debian package 1:0.8.8.4-4
+* stored playlists:
+  - fix loading playlists with references to local files
+  - obey filesystem_charset for URLs
+
+ver 0.17.5 (2013/08/04)
+* protocol:
+  - fix "playlistadd" with URI
+  - fix "move" relative to current when there is no current song
+* decoder:
+  - ffmpeg: support "application/flv"
+  - mikmod: adapt to libmikmod 3.2
+* configure.ac:
+  - detect system "ar"
+
+ver 0.17.4 (2013/04/08)
+* protocol:
+  - allow to omit END in ranges (START:END)
+  - don't emit IDLE_PLAYER before audio format is known
+* decoder:
+  - ffmpeg: support float planar audio (ffmpeg 1.1)
+  - ffmpeg: fix AVFrame allocation
+* player:
+  - implement missing "idle" events on output errors
+* clock: fix build failure
+
+ver 0.17.3 (2013/01/06)
+* output:
+  - osx: fix pops during playback
+  - recorder: fix I/O error check
+  - shout: fix memory leak in error handler
+  - recorder, shout: support Ogg packets that span more than one page
+* decoder:
+  - ffmpeg: ignore negative time stamps
+  - ffmpeg: support planar audio
+* playlist:
+  - cue: fix memory leak
+  - cue: fix CUE files with only one track
+
 ver 0.17.2 (2012/09/30)
 * protocol:
  - fix crash in local file check
--- a/configure.ac
+++ b/configure.ac
@@ -1,19 +1,19 @@
 AC_PREREQ(2.60)

-AC_INIT(mpd, 0.17.2, musicpd-dev-team@lists.sourceforge.net)
+AC_INIT(mpd, 0.18.3, musicpd-dev-team@lists.sourceforge.net)

 VERSION_MAJOR=0
-VERSION_MINOR=17
+VERSION_MINOR=18
 VERSION_REVISION=0
 VERSION_EXTRA=0

-AC_CONFIG_SRCDIR([src/main.c])
-AM_INIT_AUTOMAKE([foreign 1.11 dist-bzip2 subdir-objects])
+AC_CONFIG_SRCDIR([src/Main.cxx])
+AM_INIT_AUTOMAKE([foreign 1.11 dist-xz subdir-objects])
 AM_SILENT_RULES
 AC_CONFIG_HEADERS(config.h)
 AC_CONFIG_MACRO_DIR([m4])

-AC_DEFINE(PROTOCOL_VERSION, "0.17.0", [The MPD protocol version])
+AC_DEFINE(PROTOCOL_VERSION, "0.18.0", [The MPD protocol version])


 dnl ---------------------------------------------------------------------------
@@ -23,21 +23,10 @@ AC_PROG_CC_C99
 AC_PROG_CXX
 AC_PROG_RANLIB

-HAVE_CXX=yes
-if test x$CXX = xg++; then
-	# CXX=g++ probably means that autoconf hasn't found any C++
-	# compiler; to be sure, we check again
-	AC_PATH_PROG(CXX, $CXX, no)
-	if test x$CXX = xno; then
-		# no, we don't have C++ - the following hack is
-		# required because automake insists on using $(CXX)
-		# for linking the MPD binary
-		AC_MSG_NOTICE([Disabling C++ support])
-		CXX="$CC"
-		HAVE_CXX=no
-	fi
-fi
-AM_CONDITIONAL(HAVE_CXX, test x$HAVE_CXX = xyes)
+AN_MAKEVAR([AR], [AC_PROG_AR])
+AN_PROGRAM([ar], [AC_PROG_AR])
+AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL(AR, ar, :)])
+AC_PROG_AR

 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
@@ -76,16 +65,23 @@ dnl OS Specific Defaults
 dnl ---------------------------------------------------------------------------
 AC_CANONICAL_HOST

+host_is_darwin=no
+
 case "$host_os" in
 mingw32* | windows*)
 	AC_CONFIG_FILES([
 		src/win/mpd_win32_rc.rc
 	])
 	AC_CHECK_TOOL(WINDRES, windres)
-	AM_CPPFLAGS="$AM_CPPFLAGS -DWINVER=0x0501"
+	AM_CPPFLAGS="$AM_CPPFLAGS -DWIN32_LEAN_AND_MEAN"
+	AM_CPPFLAGS="$AM_CPPFLAGS -DWINVER=0x0600 -D_WIN32_WINNT=0x0600"
 	LIBS="$LIBS -lws2_32"
 	HAVE_WINDOWS=1
 	;;
+
+darwin*)
+	host_is_darwin=yes
+	;;
 esac
 AM_CONDITIONAL([HAVE_WINDOWS], [test x$HAVE_WINDOWS = x1])

@@ -125,6 +121,19 @@ if test -z "$prefix" || test "x$prefix" = xNONE; then
 	done
 fi

+dnl ---------------------------------------------------------------------------
+dnl Language Checks
+dnl ---------------------------------------------------------------------------
+
+AC_CXX_COMPILE_STDCXX_0X
+if test "$ax_cv_cxx_compile_cxx0x_native" != yes; then
+	if test "$ax_cv_cxx_compile_cxx0x_gxx" = yes; then
+	   	AM_CXXFLAGS="$AM_CXXFLAGS -std=gnu++0x"
+	elif test "$ax_cv_cxx_compile_cxx0x_cxx" = yes; then
+	   	AM_CXXFLAGS="$AM_CXXFLAGS -std=c++0x"
+	fi
+fi
+
 dnl ---------------------------------------------------------------------------
 dnl Header/Library Checks
 dnl ---------------------------------------------------------------------------
@@ -137,6 +146,9 @@ AC_SEARCH_LIBS([socket], [socket])
 AC_SEARCH_LIBS([gethostbyname], [nsl])

 AC_CHECK_FUNCS(pipe2 accept4)
+MPD_OPTIONAL_FUNC(eventfd, eventfd, USE_EVENTFD)
+MPD_OPTIONAL_FUNC(signalfd, signalfd, USE_SIGNALFD)
+MPD_OPTIONAL_FUNC(epoll, epoll_create1, USE_EPOLL)

 AC_SEARCH_LIBS([exp], [m],,
 	[AC_MSG_ERROR([exp() not found])])
@@ -147,6 +159,17 @@ AC_CHECK_HEADERS(valgrind/memcheck.h)
 dnl ---------------------------------------------------------------------------
 dnl Allow tools to be specifically built
 dnl ---------------------------------------------------------------------------
+
+AC_ARG_ENABLE(libmpdclient,
+	AS_HELP_STRING([--enable-libmpdclient],
+		[enable support for the MPD client]),,
+	enable_libmpdclient=auto)
+
+AC_ARG_ENABLE(adplug,
+	AS_HELP_STRING([--enable-adplug],
+		[enable the AdPlug decoder plugin (default: auto)]),,
+	enable_adplug=auto)
+
 AC_ARG_ENABLE(alsa,
 	AS_HELP_STRING([--enable-alsa], [enable ALSA support]),,
 	[enable_alsa=auto])
@@ -168,8 +191,8 @@ AC_ARG_ENABLE(audiofile,

 AC_ARG_ENABLE(bzip2,
 	AS_HELP_STRING([--enable-bzip2],
-		[enable bzip2 archive support (default: disabled)]),,
-	enable_bzip2=no)
+		[enable bzip2 archive support (default: auto)]),,
+	enable_bzip2=auto)

 AC_ARG_ENABLE(cdio-paranoia,
 	AS_HELP_STRING([--enable-cdio-paranoia],
@@ -181,11 +204,6 @@ AC_ARG_ENABLE(curl,
 		[enable support for libcurl HTTP streaming (default: auto)]),,
 	[enable_curl=auto])

-AC_ARG_ENABLE(soup,
-	AS_HELP_STRING([--enable-soup],
-		[enable support for libsoup HTTP streaming (default: auto)]),,
-	[enable_soup=auto])
-
 AC_ARG_ENABLE(debug,
 	AS_HELP_STRING([--enable-debug],
 		[enable debugging (default: disabled)]),,
@@ -196,10 +214,6 @@ AC_ARG_ENABLE(documentation,
 		[build documentation (default: disable)]),,
 	[enable_documentation=no])

-AC_ARG_ENABLE(ffado,
-	AS_HELP_STRING([--enable-ffado], [enable libffado (FireWire) support]),,
-	[enable_ffado=no])
-
 AC_ARG_ENABLE(ffmpeg,
 	AS_HELP_STRING([--enable-ffmpeg],
 		[enable FFMPEG support]),,
@@ -257,11 +271,6 @@ AC_ARG_ENABLE(jack,

 AC_SYS_LARGEFILE

-AC_ARG_ENABLE(lastfm,
-	AS_HELP_STRING([--enable-lastfm],
-		[enable support for last.fm radio (default: disable)]),,
-	[enable_lastfm=no])
-
 AC_ARG_ENABLE(despotify,
 	AS_HELP_STRING([--enable-despotify],
 		[enable support for despotify (default: disable)]),,
@@ -307,30 +316,35 @@ AC_ARG_ENABLE(modplug,
 	enable_modplug=auto)

 AC_ARG_ENABLE(mpc,
-	AS_HELP_STRING([--disable-mpc],
-		[disable musepack (MPC) support (default: enable)]),,
-	enable_mpc=yes)
+	AS_HELP_STRING([--enable-mpc],
+		[disable musepack (MPC) support (default: auto)]),,
+	enable_mpc=auto)

 AC_ARG_ENABLE(mpg123,
 	AS_HELP_STRING([--enable-mpg123],
 		[enable libmpg123 decoder plugin]),,
 	enable_mpg123=auto)

-AC_ARG_ENABLE(mvp,
-	AS_HELP_STRING([--enable-mvp],
-		[enable support for Hauppauge Media MVP (default: disable)]),,
-	enable_mvp=no)
-
 AC_ARG_ENABLE(openal,
 	AS_HELP_STRING([--enable-openal],
-		[enable OpenAL support (default: disable)]),,
-	enable_openal=no)
+		[enable OpenAL support (default: auto)]),,
+	enable_openal=auto)
+
+AC_ARG_ENABLE(opus,
+	AS_HELP_STRING([--enable-opus],
+		[enable Opus codec support (default: auto)]),,
+	enable_opus=auto)

 AC_ARG_ENABLE(oss,
 	AS_HELP_STRING([--disable-oss],
 		[disable OSS support (default: enable)]),,
 	enable_oss=yes)

+AC_ARG_ENABLE(osx,
+	AS_HELP_STRING([--enable-osx],
+		[enable the OS X output plugin - unsupported! (default: disable)]),,
+	enable_osx=no)
+
 AC_ARG_ENABLE(pipe-output,
 	AS_HELP_STRING([--enable-pipe-output],
 		[enable support for writing audio to a pipe (default: disable)]),,
@@ -429,8 +443,8 @@ AC_ARG_ENABLE(werror,

 AC_ARG_ENABLE(wildmidi,
 	AS_HELP_STRING([--enable-wildmidi],
-		[enable MIDI support via wildmidi (default: disable)]),,
-	enable_wildmidi=no)
+		[enable MIDI support via wildmidi (default: auto)]),,
+	enable_wildmidi=auto)

 AC_ARG_WITH(zeroconf,
 	AS_HELP_STRING([--with-zeroconf=@<:@auto|avahi|bonjour|no@:>@],
@@ -456,8 +470,8 @@ AC_ARG_WITH(tremor-includes,
 dnl ---------------------------------------------------------------------------
 dnl Mandatory Libraries
 dnl ---------------------------------------------------------------------------
-PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.16 gthread-2.0],,
-		[AC_MSG_ERROR([GLib 2.16 is required])])
+PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.28 gthread-2.0],,
+		[AC_MSG_ERROR([GLib 2.28 is required])])

 if test x$GCC = xyes; then
 	# suppress warnings in the GLib headers
@@ -537,6 +551,15 @@ dnl ---------------------------------------------------------------------------
 dnl Miscellaneous Libraries
 dnl ---------------------------------------------------------------------------

+dnl -------------------------------- libmpdclient --------------------------------
+MPD_AUTO_PKG(libmpdclient, LIBMPDCLIENT, [libmpdclient >= 2.2],
+	[MPD client library], [libmpdclient not found])
+if test x$enable_libmpdclient = xyes; then
+	AC_DEFINE(HAVE_LIBMPDCLIENT, 1, [Define to use libmpdclient])
+fi
+
+AM_CONDITIONAL(HAVE_LIBMPDCLIENT, test x$enable_libmpdclient = xyes)
+
 dnl --------------------------------- inotify ---------------------------------
 AC_CHECK_FUNCS(inotify_init inotify_init1)

@@ -552,6 +575,27 @@ AM_CONDITIONAL(ENABLE_INOTIFY, test x$enable_inotify = xyes)
 dnl --------------------------------- libwrap ---------------------------------
 if test x$enable_libwrap != xno; then
 	AC_CHECK_LIBWRAP(found_libwrap=yes, found_libwrap=no)
+
+	if test x$found_libwrap = xyes; then
+		dnl  See if libwrap is compatible with C++; it is
+		dnl  broken on many systems
+		AC_MSG_CHECKING(whether libwrap is compatible with C++)
+		AC_LANG_PUSH([C++])
+		AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+			#include <tcpd.h>
+			bool CheckLibWrap(int fd, const char &progname) {
+				struct request_info req;
+				request_init(&req, RQ_FILE, fd, RQ_DAEMON, progname, 0);
+				fromhost(&req);
+				return hosts_access(&req);
+			}
+			])],
+			AC_MSG_RESULT([yes]),
+			[found_libwrap=no; AC_MSG_RESULT([no]);
+			AC_MSG_WARN([Your version of libwrap is broken with C++])])
+		AC_LANG_POP
+	fi
+
 	MPD_AUTO_RESULT(libwrap, libwrap, [libwrap not found])
 fi

@@ -595,8 +639,8 @@ avahi)
 	;;
 esac

-MPD_AUTO_PKG(avahi, AVAHI, [avahi-client avahi-glib],
-	[avahi client library], [avahi client+glib not found])
+MPD_AUTO_PKG(avahi, AVAHI, [avahi-client],
+	[avahi client library], [avahi-client not found])
 if test x$enable_avahi = xyes; then
 	AC_DEFINE([HAVE_AVAHI], 1, [Define to enable Avahi Zeroconf support])
 	with_zeroconf=avahi
@@ -669,31 +713,13 @@ dnl Input Plugins
 dnl ---------------------------------------------------------------------------

 dnl ----------------------------------- CURL ----------------------------------
-MPD_AUTO_PKG(curl, CURL, [libcurl],
+MPD_AUTO_PKG(curl, CURL, [libcurl >= 7.18],
 	[libcurl HTTP streaming], [libcurl not found])
 if test x$enable_curl = xyes; then
 	AC_DEFINE(ENABLE_CURL, 1, [Define when libcurl is used for HTTP streaming])
 fi
 AM_CONDITIONAL(ENABLE_CURL, test x$enable_curl = xyes)

-dnl ----------------------------------- SOUP ----------------------------------
-MPD_AUTO_PKG(soup, SOUP, [libsoup-2.4],
-	[libsoup HTTP streaming], [libsoup not found])
-if test x$enable_soup = xyes; then
-	AC_DEFINE(ENABLE_SOUP, 1, [Define when libsoup is used for HTTP streaming])
-fi
-AM_CONDITIONAL(ENABLE_SOUP, test x$enable_soup = xyes)
-
-dnl --------------------------------- Last.FM ---------------------------------
-if test x$enable_lastfm = xyes; then
-	if test x$enable_curl != xyes; then
-		AC_MSG_ERROR([Cannot enable last.fm radio without curl])
-	fi
-
-	AC_DEFINE(ENABLE_LASTFM, 1, [Define when last.fm radio is enabled])
-fi
-AM_CONDITIONAL(ENABLE_LASTFM, test x$enable_lastfm = xyes)
-
 dnl --------------------------------- Despotify ---------------------------------
 MPD_AUTO_PKG(despotify, DESPOTIFY, [despotify],
 	[Despotify support], [despotify not found])
@@ -756,12 +782,9 @@ fi
 AM_CONDITIONAL(ENABLE_ISO9660_TEST, test x$MKISOFS != xno)

 dnl ---------------------------------- libbz2 ---------------------------------
-if test x$enable_bzip2 = xyes; then
-	AC_CHECK_LIB(bz2, BZ2_bzDecompressInit,
-		[BZ2_LIBS="-lbz2"],
-		[AC_MSG_ERROR([libbz2 not found])])
-fi
-AC_SUBST(BZ2_LIBS)
+
+MPD_AUTO_LIB(bzip2, BZ2, bz2, BZ2_bzDecompressInit, [-lbz2], [],
+	[bzip2], [libbz2 not found])

 AM_CONDITIONAL(HAVE_BZ2, test x$enable_bzip2 = xyes)
 if test x$enable_bzip2 = xyes; then
@@ -806,8 +829,16 @@ dnl ---------------------------------------------------------------------------
 dnl Decoder Plugins
 dnl ---------------------------------------------------------------------------

+dnl -------------------------------- libadplug --------------------------------
+MPD_AUTO_PKG(adplug, ADPLUG, [adplug],
+	[AdPlug decoder plugin], [libadplug not found])
+if test x$enable_adplug = xyes; then
+	AC_DEFINE(HAVE_ADPLUG, 1, [Define to use libadplug])
+fi
+AM_CONDITIONAL(HAVE_ADPLUG, test x$enable_adplug = xyes)
+
 dnl -------------------------------- audiofile --------------------------------
-MPD_AUTO_PKG(audiofile, AUDIOFILE, [audiofile >= 0.1.7],
+MPD_AUTO_PKG(audiofile, AUDIOFILE, [audiofile >= 0.3],
 	[audiofile decoder plugin], [libaudiofile not found])
 AM_CONDITIONAL(HAVE_AUDIOFILE, test x$enable_audiofile = xyes)
 if test x$enable_audiofile = xyes; then
@@ -818,10 +849,9 @@ dnl ----------------------------------- FAAD ----------------------------------
 AM_PATH_FAAD()

 AM_CONDITIONAL(HAVE_FAAD, test x$enable_aac = xyes)
-AM_CONDITIONAL(HAVE_MP4, test x$enable_mp4 = xyes)

 dnl ---------------------------------- ffmpeg ---------------------------------
-MPD_AUTO_PKG(ffmpeg, FFMPEG, [libavformat >= 52.31 libavcodec >= 52.20 libavutil >= 49.15],
+MPD_AUTO_PKG(ffmpeg, FFMPEG, [libavformat >= 53.17 libavcodec >= 53.25 libavutil >= 51.17],
 	[ffmpeg decoder library], [libavformat+libavcodec+libavutil not found])

 if test x$enable_ffmpeg = xyes; then
@@ -832,7 +862,7 @@ AM_CONDITIONAL(HAVE_FFMPEG, test x$enable_ffmpeg = xyes)

 dnl ----------------------------------- FLAC ----------------------------------

-MPD_AUTO_PKG(flac, FLAC, [flac >= 1.1],
+MPD_AUTO_PKG(flac, FLAC, [flac >= 1.2],
 	[FLAC decoder], [libFLAC not found])

 if test x$enable_flac = xyes; then
@@ -853,7 +883,7 @@ fi
 AM_CONDITIONAL(ENABLE_FLUIDSYNTH, test x$enable_fluidsynth = xyes)

 dnl ---------------------------------- libgme ---------------------------------
-MPD_AUTO_PKG(gme, GME, [libgme],
+MPD_AUTO_PKG_LIB(gme, GME, [libgme], gme, gme_open_file, [-lgme -lstdc++], [],
 	[gme decoder plugin], [libgme not found])
 AM_CONDITIONAL(HAVE_GME, test x$enable_gme = xyes)
 if test x$enable_gme = xyes; then
@@ -899,9 +929,6 @@ fi
 AM_CONDITIONAL(ENABLE_MIKMOD_DECODER, test x$enable_mikmod = xyes)

 dnl -------------------------------- libmodplug -------------------------------
-found_modplug=$HAVE_CXX
-MPD_AUTO_PRE(modplug, [modplug decoder plugin], [No C++ compiler found])
-
 MPD_AUTO_PKG(modplug, MODPLUG, [libmodplug],
 	[modplug decoder plugin], [libmodplug not found])

@@ -910,6 +937,14 @@ if test x$enable_modplug = xyes; then
 fi
 AM_CONDITIONAL(HAVE_MODPLUG, test x$enable_modplug = xyes)

+dnl -------------------------------- libopus ----------------------------------
+MPD_AUTO_PKG(opus, OPUS, [opus ogg],
+	[opus decoder plugin], [libopus not found])
+if test x$enable_opus = xyes; then
+	AC_DEFINE(HAVE_OPUS, 1, [Define to use libopus])
+fi
+AM_CONDITIONAL(HAVE_OPUS, test x$enable_opus = xyes)
+
 dnl -------------------------------- libsndfile -------------------------------
 dnl See above test, which may disable this.
 MPD_AUTO_PKG(sndfile, SNDFILE, [sndfile],
@@ -921,33 +956,12 @@ fi
 AM_CONDITIONAL(ENABLE_SNDFILE, test x$enable_sndfile = xyes)

 dnl --------------------------------- musepack --------------------------------
+
+MPD_AUTO_LIB(mpc, MPCDEC, mpcdec, main, [-lmpcdec], [],
+	[mpcdec], [libmpcdec not found])
 if test x$enable_mpc = xyes; then
-	oldcflags=$CFLAGS
-	oldlibs=$LIBS
-	oldcppflags=$CPPFLAGS
-	AC_CHECK_LIB(mpcdec,main,
-			MPCDEC_LIBS="$MPCDEC_LIBS -lmpcdec",
-			enable_mpc=no)
-	CFLAGS=$oldcflags
-	LIBS=$oldlibs
-	CPPFLAGS=$oldcppflags
-
-	if test x$enable_mpc = xyes; then
-		AC_CHECK_HEADER([mpc/mpcdec.h],
-			[AC_DEFINE(HAVE_MPCDEC,1,
-				[Define to use libmpcdec for MPC decoding])],
-			[AC_CHECK_HEADER(mpcdec/mpcdec.h,
-				[AC_DEFINE(MPC_IS_OLD_API, 1,
-				[Define if an old pre-SV8 libmpcdec is used])]
-				)]
-		)	
-	else
-		AC_MSG_WARN([mpcdec lib needed for MPC support -- disabling MPC support])
-	fi
+	AC_DEFINE(HAVE_MPCDEC, 1, [Define to use libmpcdec for MPC decoding])
 fi
-
-AC_SUBST(MPCDEC_LIBS)
-AC_SUBST(MPCDEC_CFLAGS)
 AM_CONDITIONAL(HAVE_MPCDEC, test x$enable_mpc = xyes)

 dnl -------------------------------- Ogg Tremor -------------------------------
@@ -1015,9 +1029,6 @@ fi
 AM_CONDITIONAL(ENABLE_VORBIS_DECODER, test x$enable_vorbis = xyes || test x$enable_tremor = xyes)

 dnl --------------------------------- sidplay ---------------------------------
-found_sidplay=$HAVE_CXX
-MPD_AUTO_PRE(sidplay, [sidplay decoder plugin], [No C++ compiler found])
-
 if test x$enable_sidplay != xno; then
 	# we're not using pkg-config here
 	# because libsidplay2's .pc file requires libtool
@@ -1032,7 +1043,7 @@ if test x$enable_sidplay != xno; then
 		[found_sidplay=yes], [found_sidplay=no])

 	if test x$found_sidplay = xyes; then
-		AC_CHECK_LIB([sidutils],[main],[],[found_sidplay=no],[])
+		AC_CHECK_LIB([sidutils],[main],[:],[found_sidplay=no],[])
 	fi

 	MPD_AUTO_RESULT(sidplay, [sidplay decoder plugin],
@@ -1057,25 +1068,9 @@ if test x$enable_wavpack = xyes; then
 fi

 dnl --------------------------------- WildMidi --------------------------------
+MPD_AUTO_LIB(wildmidi, WILDMIDI, WildMidi, WildMidi_Init, [-lWildMidi], [],
+	[wildmidi], [libwildmidi not found])
 if test x$enable_wildmidi = xyes; then
-	oldcflags=$CFLAGS
-	oldlibs=$LIBS
-	oldcppflags=$CPPFLAGS
-
-	AC_CHECK_LIB(WildMidi, WildMidi_Init,,
-		AC_MSG_ERROR([libwildmidi not found]))
-
-	AC_CHECK_LIB(WildMidi, WildMidi_SampledSeek,
-		[AC_DEFINE(HAVE_WILDMIDI_SAMPLED_SEEK, 1,
-			[Defined if WildMidi_SampledSeek() is available (libwildmidi <= 0.2.2)])])
-
-	CFLAGS=$oldcflags
-	LIBS=$oldlibs
-	CPPFLAGS=$oldcppflags
-
-	AC_SUBST(WILDMIDI_LIBS,-lWildMidi)
-	AC_SUBST(WILDMIDI_CFLAGS,)
-
 	AC_DEFINE(ENABLE_WILDMIDI, 1, [Define for wildmidi support])
 fi

@@ -1092,9 +1087,9 @@ if
 	test x$enable_mad = xno &&
 	test x$enable_mikmod = xno; then
 	test x$enable_modplug = xno &&
-	test x$enable_mp4 = xno &&
 	test x$enable_mpc = xno &&
 	test x$enable_mpg123 = xno &&
+	test x$enable_opus = xno &&
 	test x$enable_sidplay = xno &&
 	test x$enable_tremor = xno &&
 	test x$enable_vorbis = xno &&
@@ -1104,11 +1099,8 @@ if
 		AC_MSG_ERROR([No input plugins supported!])
 fi

-AM_CONDITIONAL(HAVE_OGG_COMMON,
-	test x$enable_vorbis = xyes || test x$enable_tremor = xyes || test x$enable_flac = xyes)
-
-AM_CONDITIONAL(HAVE_FLAC_COMMON,
-	  test x$enable_flac = xyes)
+AM_CONDITIONAL(HAVE_XIPH,
+	test x$enable_vorbis = xyes || test x$enable_tremor = xyes || test x$enable_flac = xyes || test x$enable_opus = xyes)

 dnl ---------------------------------------------------------------------------
 dnl Encoders for Streaming Audio Output Plugins
@@ -1154,23 +1146,9 @@ fi
 AM_CONDITIONAL(ENABLE_VORBIS_ENCODER, test x$enable_vorbis_encoder = xyes)

 dnl ------------------------------- LAME Encoder ------------------------------
-if test x$enable_lame_encoder != xno; then
-	AC_CHECK_HEADERS(lame/lame.h,,
-		[AC_CHECK_HEADERS(lame.h,, using_lame=no)])
-	AC_CHECK_LIB(mp3lame, lame_init,, using_lame=no)
-	if test x$using_lame != xno; then
-		AC_DEFINE(HAVE_LAME, 1, [Define to 1 if you have lame 3.98 or greater.])
-		LAME_LIBS="-lmp3lame -lm"
-		enable_lame_encoder=yes
-	fi
-
-	if test "$enable_lame_encoder" = "yes" -a "$using_lame" = "no"; then
-		AC_MSG_ERROR([LAME libraries and development support files not found.])
-	fi
-fi
-
-AC_SUBST(LAME_LIBS)

+MPD_AUTO_LIB(lame_encoder, LAME, mp3lame, lame_init, [-lmp3lame], [],
+	[libmp3lame], [libmp3lame not found])
 if test x$enable_lame_encoder = xyes; then
 	AC_DEFINE(ENABLE_LAME_ENCODER, 1,
 		[Define to enable the lame encoder plugin])
@@ -1196,6 +1174,7 @@ fi

 dnl --------------------------- encoder plugins test --------------------------
 if test x$enable_vorbis_encoder != xno ||
+	test x$enable_opus != xno ||
 	test x$enable_lame_encoder != xno ||
 	test x$enable_twolame_encoder != xno ||
 	test x$enable_flac_encoder != xno ||
@@ -1216,6 +1195,7 @@ if test x$enable_encoder = xyes; then
 		[Define to enable the encoder plugins])
 fi
 AM_CONDITIONAL(ENABLE_ENCODER, test x$enable_encoder = xyes)
+AM_CONDITIONAL(HAVE_OGG_ENCODER, test x$enable_vorbis_encoder = xyes || test x$enable_opus = xyes)

 dnl ---------------------------------------------------------------------------
 dnl Audio Output Plugins
@@ -1241,17 +1221,6 @@ fi

 AM_CONDITIONAL(HAVE_ROAR, test x$enable_roar = xyes)

-dnl ----------------------------------- FFADO ---------------------------------
-
-MPD_AUTO_PKG(ffado, FFADO, [libffado],
-	[libffado output plugin], [libffado not found])
-
-if test x$enable_ffado = xyes; then
-	AC_DEFINE(ENABLE_FFADO_OUTPUT, 1, [Define to enable the libffado output plugin])
-fi
-
-AM_CONDITIONAL(ENABLE_FFADO_OUTPUT, test x$enable_ffado = xyes)
-
 dnl ----------------------------------- FIFO ----------------------------------
 if test x$enable_fifo = xyes; then
 	AC_CHECK_FUNC([mkfifo],
@@ -1307,31 +1276,28 @@ fi

 AM_CONDITIONAL(HAVE_AO, test x$enable_ao = xyes)

-dnl ----------------------------------- MVP -----------------------------------
-if test x$enable_mvp = xyes; then
-   AC_DEFINE(HAVE_MVP,1,[Define to enable Hauppauge Media MVP support])
-fi
-
-AM_CONDITIONAL(HAVE_MVP, test x$enable_mvp = xyes)
-
 dnl ---------------------------------- OpenAL ---------------------------------
 AC_SUBST(OPENAL_CFLAGS,"")
 AC_SUBST(OPENAL_LIBS,"")

-if test x$enable_openal = xyes; then
-	if test x$enable_osx = xyes; then
-		AC_CHECK_HEADERS([OpenAL/al.h OpenAL/alc.h], [], [enable_openal=no])
-		if test x$enable_openal = xyes; then
-			OPENAL_LIBS="-framework OpenAL"
-			AC_DEFINE(HAVE_OPENAL, 1, [Define for OpenAL support])
-		else
-			AC_MSG_WARN(OpenAL headers not found -- disabling OpenAL support)
-		fi
-	else
-		PKG_CHECK_MODULES([OPENAL], [openal],
-			AC_DEFINE(HAVE_OPENAL, 1, [Define for OpenAL support]),
-			enable_openal=no)
+if test x$host_is_darwin = xyes; then
+	if test x$enable_openal != xno; then
+		AC_CHECK_HEADERS([OpenAL/al.h OpenAL/alc.h],
+			[found_openal=yes], [found_openal=no])
 	fi
+
+	MPD_AUTO_RESULT(openal, [OpenAL output plugin], [OpenAL not found])
+
+	if test x$enable_openal = xyes; then
+		OPENAL_LIBS="-framework OpenAL"
+	fi
+else
+	MPD_AUTO_PKG(openal, [OPENAL], [openal],
+		[OpenAL output plugin], [OpenAL not found])
+fi
+
+if test x$enable_openal = xyes; then
+	AC_DEFINE(HAVE_OPENAL, 1, [Define for OpenAL support])
 fi

 AM_CONDITIONAL(HAVE_OPENAL, test x$enable_openal = xyes)
@@ -1347,13 +1313,10 @@ fi
 AM_CONDITIONAL(HAVE_OSS, test x$enable_oss = xyes)

 dnl ----------------------------------- OSX -----------------------------------
-enable_osx=no
-case "$host_os" in
-	darwin*)
-		AC_DEFINE(HAVE_OSX, 1, [Define for compiling OS X support])
-		LIBS="$LIBS -framework AudioUnit -framework CoreAudio -framework CoreServices"
-		enable_osx=yes ;;
-esac
+if test x$enable_osx = xyes; then
+	AC_DEFINE(HAVE_OSX, 1, [Define for compiling OS X support])
+	LIBS="$LIBS -framework AudioUnit -framework CoreAudio -framework CoreServices"
+fi

 AM_CONDITIONAL(HAVE_OSX, test x$enable_osx = xyes)

@@ -1365,7 +1328,7 @@ fi
 AM_CONDITIONAL(ENABLE_PIPE_OUTPUT, test x$enable_pipe_output = xyes)

 dnl -------------------------------- PulseAudio -------------------------------
-MPD_AUTO_PKG(pulse, PULSE, [libpulse],
+MPD_AUTO_PKG(pulse, PULSE, [libpulse >= 0.9.16],
 	[PulseAudio output plugin], [libpulse not found])
 if test x$enable_pulse = xyes; then
 	AC_DEFINE([HAVE_PULSE], 1,
@@ -1449,11 +1412,9 @@ if
 	test x$enable_alsa = xno &&
 	test x$enable_roar = xno &&
 	test x$enable_ao = xno &&
-	test x$enable_ffado = xno &&
 	test x$enable_fifo = xno &&
 	test x$enable_httpd_output = xno &&
 	test x$enable_jack = xno &&
-	test x$enable_mvp = xno; then
 	test x$enable_openal = xno &&
 	test x$enable_oss = xno &&
 	test x$enable_osx = xno &&
@@ -1462,7 +1423,7 @@ if
 	test x$enable_recorder_output = xno &&
 	test x$enable_shout = xno &&
 	test x$enable_solaris_output = xno &&
-	test x$enable_winmm_output = xno &&
+	test x$enable_winmm_output = xno; then

 		AC_MSG_ERROR([No Audio Output types configured!])
 fi
@@ -1490,15 +1451,52 @@ AM_CONDITIONAL(ENABLE_DOCUMENTATION, test x$enable_documentation = xyes)
 dnl ---------------------------------------------------------------------------
 dnl test suite
 dnl ---------------------------------------------------------------------------
+
+if test "x$enable_test" = xyes; then
+	PKG_CHECK_MODULES([CPPUNIT], [cppunit],,
+		[AC_MSG_ERROR([cppunit not found])])
+fi
+
 AM_CONDITIONAL(ENABLE_TEST, test "x$enable_test" = xyes)

 dnl ---------------------------------------------------------------------------
 dnl CFLAGS
 dnl ---------------------------------------------------------------------------

+dnl ---------------------------- warnings as errors ---------------------------
+if test "x$enable_werror" = xyes; then
+	CFLAGS="$CFLAGS -Werror -pedantic-errors"
+	CXXFLAGS="$CXXFLAGS -Werror"
+fi
+
+dnl ---------------------------- language features ----------------------------
+AX_APPEND_COMPILE_FLAGS([-fvisibility=hidden])
+AX_APPEND_COMPILE_FLAGS([-ffast-math])
+AX_APPEND_COMPILE_FLAGS([-ftree-vectorize])
+
+AC_LANG_PUSH([C++])
+AX_APPEND_COMPILE_FLAGS([-fvisibility=hidden])
+AX_APPEND_COMPILE_FLAGS([-fno-threadsafe-statics])
+AX_APPEND_COMPILE_FLAGS([-fmerge-all-constants])
+AX_APPEND_COMPILE_FLAGS([-fno-exceptions])
+AX_APPEND_COMPILE_FLAGS([-fno-rtti])
+AX_APPEND_COMPILE_FLAGS([-ffast-math])
+AX_APPEND_COMPILE_FLAGS([-ftree-vectorize])
+AC_LANG_POP
+
 dnl ---------------------------------- debug ----------------------------------
 if test "x$enable_debug" = xno; then
 	AM_CPPFLAGS="$AM_CPPFLAGS -DNDEBUG"
+
+	AX_APPEND_COMPILE_FLAGS([-ffunction-sections])
+	AX_APPEND_COMPILE_FLAGS([-fdata-sections])
+
+	AC_LANG_PUSH([C++])
+	AX_APPEND_COMPILE_FLAGS([-ffunction-sections])
+	AX_APPEND_COMPILE_FLAGS([-fdata-sections])
+	AC_LANG_POP
+
+	AX_APPEND_LINK_FLAGS([-Wl,--gc-sections])
 fi

 dnl ----------------------------------- GCC -----------------------------------
@@ -1513,12 +1511,17 @@ then
 	AX_APPEND_COMPILE_FLAGS([-Wcast-qual])
 	AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
 	AX_APPEND_COMPILE_FLAGS([-pedantic])
-fi

-dnl ---------------------------- warnings as errors ---------------------------
-if test "x$enable_werror" = xyes; then
-	AM_CFLAGS="$AM_CFLAGS -Werror -pedantic-errors"
-	AM_CXXFLAGS="$AM_CXXFLAGS -Werror"
+	AC_LANG_PUSH([C++])
+	AX_APPEND_COMPILE_FLAGS([-Wall])
+	AX_APPEND_COMPILE_FLAGS([-Wextra])
+	AX_APPEND_COMPILE_FLAGS([-Wmissing-declarations])
+	AX_APPEND_COMPILE_FLAGS([-Wshadow])
+	AX_APPEND_COMPILE_FLAGS([-Wpointer-arith])
+	AX_APPEND_COMPILE_FLAGS([-Wcast-qual])
+	AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
+	AX_APPEND_COMPILE_FLAGS([-Wsign-compare])
+	AC_LANG_POP
 fi

 dnl ---------------------------------------------------------------------------
@@ -1545,20 +1548,21 @@ results(un,[UNIX Domain Sockets])

 printf '\nFile format support:\n\t'
 results(aac, [AAC])
+results(adplug, [AdPlug])
 results(sidplay, [C64 SID])
 results(ffmpeg, [FFMPEG])
 results(flac, [FLAC])
 results(fluidsynth, [FluidSynth])
 results(gme, [GME])
-results(sndfile, [libsndfile])
 printf '\n\t'
+results(sndfile, [libsndfile])
 results(mikmod, [MikMod])
 results(modplug, [MODPLUG])
 results(mad, [MAD])
 results(mpg123, [MPG123])
-results(mp4, [MP4])
 results(mpc, [Musepack])
 printf '\n\t'
+results(opus, [Opus])
 results(tremor, [OggTremor])
 results(vorbis, [OggVorbis])
 results(audiofile, [WAVE])
@@ -1567,6 +1571,7 @@ results(wildmidi, [WildMidi])

 printf '\nOther features:\n\t'
 results(lsr, [libsamplerate])
+results(libmpdclient, [libmpdclient])
 results(inotify, [inotify])
 results(sqlite, [SQLite])

@@ -1575,14 +1580,12 @@ results(id3,[ID3])

 printf '\nPlayback support:\n\t'
 results(alsa,ALSA)
-results(ffado,FFADO)
 results(fifo,FIFO)
 results(recorder_output,[File Recorder])
 results(httpd_output,[HTTP Daemon])
 results(jack,[JACK])
 printf '\n\t'
 results(ao,[libao])
-results(mvp, [Media MVP])
 results(oss,[OSS])
 results(openal,[OpenAL])
 results(osx, [OS X])
@@ -1602,6 +1605,7 @@ if
 		results(flac_encoder, [FLAC])
 		results(lame_encoder, [LAME])
 		results(vorbis_encoder, [Ogg Vorbis])
+		results(opus, [Opus])
 		results(twolame_encoder, [TwoLAME])
 		results(wave_encoder, [WAVE])
 fi
@@ -1610,11 +1614,9 @@ printf '\nStreaming support:\n\t'
 results(cdio_paranoia, [CDIO_PARANOIA])
 results(curl,[CURL])
 results(despotify,[Despotify])
-results(lastfm,[Last.FM])
 results(soundcloud,[Soundcloud])
 printf '\n\t'
 results(mms,[MMS])
-results(soup, [SOUP])

 printf '\n\n##########################################\n\n'

--- a/doc/developer.xml
+++ b/doc/developer.xml
@@ -32,23 +32,16 @@

      <listitem>
        <para>
-          don't write CPP when you can write C: use inline functions
-          and enums instead of macros
+          don't write CPP when you can write C++: use inline
+          functions and constexpr instead of macros
        </para>
      </listitem>

      <listitem>
        <para>
-          the code should be C99 compliant, and must compile with
-          <application>GCC</application>;
-          <application>clang</application> support is highly desirable
-        </para>
-      </listitem>
-
-      <listitem>
-        <para>
-          C++ is ok (for integrating C++ only libraries), but it
-          should be avoided
+          the code should be C++11 compliant, and must compile with
+          <application>GCC</application> 4.6 and
+          <application>clang</application> 3.2
        </para>
      </listitem>

@@ -61,7 +54,7 @@
 foo(const char *abc, int xyz)
 {
        if (abc == NULL) {
-                g_warning("Foo happened!\n");
+                LogWarning("Foo happened!");
                return -1;
        }

@@ -75,12 +68,28 @@ foo(const char *abc, int xyz)
  <chapter>
    <title>Hacking The Source</title>

+    <para>
+      MPD sources are managed in a git repository on <ulink
+      url="http://git.musicpd.org/">git.musicpd.org</ulink>.
+    </para>
+
    <para>
      Always write your code against the latest git:
    </para>

    <programlisting>git clone git://git.musicpd.org/master/mpd.git</programlisting>

+    <para>
+      If you already have a clone, update it:
+    </para>
+
+    <programlisting>git pull --rebase git://git.musicpd.org/master/mpd.git master</programlisting>
+
+    <para>
+      You can do without "--rebase", but we recommend that you rebase
+      your repository on the "master" repository all the time.
+    </para>
+
    <para>
      Configure with the options <option>--enable-debug
      --enable-werror</option>.  Enable as many plugins as possible,
@@ -90,8 +99,55 @@ foo(const char *abc, int xyz)
    <para>
      Don't mix several changes in one single patch.  Create a
      separate patch for every change.  Tools like
-      <application>stgit</application> help you with that.
+      <application>stgit</application> help you with that.  This way,
+      we can review your patches more easily, and we can pick the
+      patches we like most first.
    </para>
+
+
+    <section>
+      <title> Basic stgit usage</title>
+
+      <para>
+        stgit allows you to create a set of patches and refine all of
+        them: you can go back to any patch at any time, and re-edit it
+        (both the code and the commit message). You can reorder
+        patches and insert new patches at any position. It encourages
+        creating separate patches for tiny changes.
+      </para>
+
+      <para>
+        stgit needs to be initialized on a git repository: stg init
+      </para>
+
+      <para>
+        Before you edit the code, create a patch: stg new
+        my-patch-name (stgit now asks you for the commit message).
+      </para>
+
+      <para>
+        Now edit the code. Once you're finished, you have to "refresh"
+        the patch, i.e. your edits are incorporated into the patch you
+        have created: stg refresh
+      </para>
+
+      <para>
+        You may now continue editing the same patch, and refresh it as
+        often as you like. Create more patches, edit and refresh them.
+      </para>
+
+      <para>
+        To view the list of patches, type stg series. To go back to a
+        specific patch, type stg goto my-patch-name; now you can
+        re-edit it (don't forget stg refresh when you're finished with
+        that patch).
+      </para>
+
+      <para>
+        When the whole patch series is finished, convert stgit patches
+        to git commits: stg commit
+      </para>
+    </section>
  </chapter>

  <chapter>
--- a/doc/doxygen.conf.in
+++ b/doc/doxygen.conf.in
@@ -1158,7 +1158,7 @@ INCLUDE_FILE_PATTERNS  =
 # undefined via #undef or recursively expanded use the := operator
 # instead of the = operator.

-PREDEFINED             = G_GNUC_UNUSED=
+PREDEFINED             =

 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
 # this tag can be used to specify a list of macro names that should be expanded.
--- a/doc/mpd.1
+++ b/doc/mpd.1
@@ -12,29 +12,29 @@ stores info about all available music, and this info can be easily searched and
 retrieved.  Player control, info retrieval, and playlist management can all be
 managed remotely.

-MPD searches for a config file in \fB~/.mpdconf\fP then \fB/etc/mpd.conf\fP or
-uses CONF_FILE.
+MPD searches for a config file in \fB$XDG_CONFIG_HOME/mpd/mpd.conf\fP then
+\fB~/.mpdconf\fP then \fB/etc/mpd.conf\fP or uses CONF_FILE.

 Read more about MPD at <\fBhttp://www.musicpd.org/\fP>.
 .SH OPTIONS
 .TP
-.BI --help
+.BI \-\-help
 Output a brief help message.
 .TP
-.BI --kill
+.BI \-\-kill
 Kill the currently running mpd session.  The pid_file parameter must be
 specified in the config file for this to work.
 .TP
-.BI --no-daemon
+.BI \-\-no\-daemon
 Don't detach from console.
 .TP
-.BI --stderr
+.BI \-\-stderr
 Print messages stderr.
 .TP
-.BI --verbose
+.BI \-\-verbose
 Verbose logging.
 .TP
-.BI --version
+.BI \-\-version
 Print version information.
 .SH FILES
 .TP
@@ -48,8 +48,8 @@ mpd.conf(5), mpc(1)
 .SH BUGS
 If you find a bug, please report it at
 .br
-<\fBhttp://www.musicpd.org/mantis/bug_report_page.php\fP>.
+<\fBhttp://bugs.musicpd.org/bug_report_page.php\fP>.
 .SH AUTHORS
-Warren Dukes <warren.dukes@gmail.com>
+Max Kellermann <max@duempel.org>

 Special thanks to all the people that provided feedback and patches.
--- a/doc/mpd.conf.5
+++ b/doc/mpd.conf.5
@@ -3,8 +3,9 @@
 mpd.conf \- Music Player Daemon configuration file
 .SH DESCRIPTION
 \fBmpd.conf\fP is the configuration file for mpd(1).  If not specified on the
-command line, MPD first searches for it at \fB~/.mpdconf\fP then at
-\fB~/.mpd/mpd.conf\fP and then in \fB/etc/mpd.conf\fP.
+command line, MPD first searches for it at \fB$XDG_CONFIG_HOME/mpd/mpd.conf\fP
+then at \fB~/.mpdconf\fP then at \fB~/.mpd/mpd.conf\fP and then in
+\fB/etc/mpd.conf\fP.

 Lines beginning with a "#" character are comments.  All other non-empty lines
 specify parameters and their values.  These lines contain the parameter name
@@ -27,31 +28,24 @@ paths.

 See \fBdocs/mpdconf.example\fP in the source tarball for an example
 configuration file.
+
+This manual is not complete, it lists only the most important options.
+Please read the MPD user manual for a complete configuration guide:
+<\fBhttp://www.musicpd.org/doc/user/\fP>
 .SH REQUIRED PARAMETERS
 .TP
-.B follow_outside_symlinks <yes or no>
-Control if MPD will follow symbolic links pointing outside the music dir.
-You must recreate the database after changing this option.
-The default is "yes".
-.TP
-.B follow_inside_symlinks <yes or no>
-Control if MPD will follow symbolic links pointing inside the music dir,
-potentially adding duplicates to the database.
-You must recreate the database after changing this option.
-The default is "yes".
-.TP
 .B db_file <file>
 This specifies where the db file will be stored.
 .TP
-.B sticker_file <file>
-The location of the sticker database.  This is a database which
-manages dynamic information attached to songs.
-.TP
 .B log_file <file>
 This specifies where the log file should be located.
 The special value "syslog" makes MPD use the local syslog daemon.
 .SH OPTIONAL PARAMETERS
 .TP
+.B sticker_file <file>
+The location of the sticker database.  This is a database which
+manages dynamic information attached to songs.
+.TP
 .B pid_file <file>
 This specifies the file to save mpd's process ID in.
 .TP
@@ -87,8 +81,9 @@ You can set a port that is different from the global port setting,
 e.g. "localhost:6602".  IPv6 addresses must be enclosed in square
 brackets if you want to configure a port, e.g. "[::1]:6602".

-To bind to a Unix domain socket, specify an absolute path.  For a
-system-wide MPD, we suggest the path "\fB/var/run/mpd/socket\fP".
+To bind to a Unix domain socket, specify an absolute path or a path starting
+with a tilde (~).  For a system-wide MPD, we suggest the path
+"\fB/var/run/mpd/socket\fP".
 .TP
 .B port <port>
 This specifies the port that mpd listens on.  The default is 6600.
@@ -99,6 +94,17 @@ reports from what address a connection is opened, and when it is closed, and
 "verbose" records excessive amounts of information for debugging purposes.  The
 default is "default".
 .TP
+.B follow_outside_symlinks <yes or no>
+Control if MPD will follow symbolic links pointing outside the music dir.
+You must recreate the database after changing this option.
+The default is "yes".
+.TP
+.B follow_inside_symlinks <yes or no>
+Control if MPD will follow symbolic links pointing inside the music dir,
+potentially adding duplicates to the database.
+You must recreate the database after changing this option.
+The default is "yes".
+.TP
 .B zeroconf_enabled <yes or no>
 If yes, and MPD has been compiled with support for Avahi or Bonjour, service
 information will be published with Zeroconf.  The default is yes.
@@ -175,7 +181,7 @@ only choice) if MPD was compiled without libsamplerate.
 .RE
 .IP
 For an up-to-date list of available converters, please see the libsamplerate
-documentation (available online at <\fBhttp://www.mega-nerd.com/SRC/\fP>).
+documentation (available online at <\fBhttp://www.mega\-nerd.com/SRC/\fP>).
 .TP
 .B replaygain <off or album or track or auto>
 If specified, mpd will adjust the volume of songs played using ReplayGain tags
@@ -186,14 +192,14 @@ tags if random play is activated otherwise the album ReplayGain tags. Currently
 only FLAC, Ogg Vorbis, Musepack, and MP3 (through ID3v2 ReplayGain tags, not
 APEv2) are supported.
 .TP
-.B replaygain_preamp <-15 to 15>
+.B replaygain_preamp <\-15 to 15>
 This is the gain (in dB) applied to songs with ReplayGain tags.
 .TP
 .B volume_normalization <yes or no>
 If yes, mpd will normalize the volume of songs as they play.  The default is no.
 .TP
 .B audio_buffer_size <size in KiB>
-This specifies the size of the audio buffer in kibibytes.  The default is 2048,
+This specifies the size of the audio buffer in kibibytes.  The default is 4096,
 large enough for nearly 12 seconds of CD-quality audio.
 .TP
 .B buffer_before_play <0-100%>
@@ -227,12 +233,12 @@ is 8192.
 .TP
 .B filesystem_charset <charset>
 This specifies the character set used for the filesystem.  A list of supported
-character sets can be obtained by running "iconv -l".  The default is
+character sets can be obtained by running "iconv \-l".  The default is
 determined from the locale when the db was originally created.
 .TP
 .B id3v1_encoding <charset>
 This specifies the character set which ID3v1 tags are encoded in.  A list of
-supported character sets can be obtained by running "iconv -l".  The default is
+supported character sets can be obtained by running "iconv \-l".  The default is
 to let libid3tag convert them (from ISO-8859-1, as the standard specifies) and
 do no additional conversion.
 .TP
@@ -260,7 +266,7 @@ be used alone to disable all metadata.  The default is to use all known tag
 types except for comments and those starting with "musicbrainz".
 .TP
 .B auto_update <yes or no>
-This specifies the wheter to support automatic update of music database when
+This specifies the whether to support automatic update of music database when
 files are changed in music_directory. The default is to disable autoupdate
 of database.
 .TP
@@ -282,7 +288,7 @@ better but requires more processing and higher bandwidth. Default is yes.
 .TP
 .B type <type>
 This specifies the audio output type.  See the list of supported outputs in mpd
--version for possible values.
+\-\-version for possible values.
 .TP
 .B name <name>
 This specifies a unique name for the audio output.
@@ -488,21 +494,6 @@ This specifies a URL associated with the stream.
 .TP
 .B genre <genre>
 This specifies the genre(s) of the stream.
-.SH OPTIONAL TCP KEEPALIVE PARAMETERS
-.TP
-.B tcp_keep_alive <yes or no>
-Enable tcp keepalive on new client connections. (default is "no")
-.TP
-.B tcp_keep_alive_idle <seconds>
-Time in seconds since the last communication on the connection and before
-the keepalive probing is started. (default is 7200 seconds)
-.TP
-.B tcp_keep_alive_interval <seconds>
-Interval in seconds between keepalive probes, once a probe started. (default is 75 seconds)
-.TP
-.B tcp_keep_alive_count <number of times>
-Number of failed probes before the connection is pronounced dead and
-the connection is closed. (default is 9 times)
 .SH FILES
 .TP
 .BI ~/.mpdconf
--- a/doc/mpdconf.example
+++ b/doc/mpdconf.example
@@ -1,5 +1,5 @@
-# An example configuration file for MPD
-# See the mpd.conf man page for a more detailed description of each parameter.
+# An example configuration file for MPD.
+# Read the user manual for documentation: http://www.musicpd.org/doc/user/


 # Files and directories #######################################################
@@ -175,6 +175,15 @@
 ###############################################################################


+# Database #######################################################################
+#
+
+#database {
+#       plugin "proxy"
+#       host "other.mpd.host"
+#       port "6600"
+#}
+
 # Input #######################################################################
 #

@@ -195,9 +204,6 @@ input {
 # blocks. Setting this block is optional, though the server will only attempt
 # autodetection for one sound card.
 #
-# See <http://mpd.wikia.com/wiki/Configuration#Audio_Outputs> for examples of 
-# other audio outputs.
-#
 # An example of an ALSA output:
 #
 #audio_output {
@@ -281,6 +287,25 @@ input {
 ##	sink		"remote_server_sink"	# optional
 #}
 #
+# An example of a winmm output (Windows multimedia API).
+#
+#audio_output {
+#	type		"winmm"
+#	name		"My WinMM output"
+##	device		"Digital Audio (S/PDIF) (High Definition Audio Device)" # optional
+#		or
+##	device		"0"		# optional
+##	mixer_type	"hardware"	# optional
+#}
+#
+# An example of an openal output.
+#
+#audio_output {
+#	type		"openal"
+#	name		"My OpenAL output"
+##	device		"Digital Audio (S/PDIF) (High Definition Audio Device)" # optional
+#}
+#
 ## Example "pipe" output:
 #
 #audio_output {
@@ -321,8 +346,11 @@ input {
 # Normalization automatic volume adjustments ##################################
 #
 # This setting specifies the type of ReplayGain to use. This setting can have
-# the argument "off", "album" or "track". See <http://www.replaygain.org>
-# for more details. This setting is off by default.
+# the argument "off", "album", "track" or "auto". "auto" is a special mode that
+# chooses between "track" and "album" depending on the current state of
+# random playback. If random playback is enabled then "track" mode is used.
+# See <http://www.replaygain.org> for more details about ReplayGain.
+# This setting is off by default.
 #
 #replaygain			"album"
 #
@@ -331,6 +359,20 @@ input {
 #
 #replaygain_preamp		"0"
 #
+# This setting sets the pre-amp used for files that do NOT have ReplayGain tags.
+# By default this setting is disabled.
+#
+#replaygain_missing_preamp	"0"
+#
+# This setting enables or disables ReplayGain limiting.
+# MPD calculates actual amplification based on the ReplayGain tags
+# and replaygain_preamp / replaygain_missing_preamp setting.
+# If replaygain_limit is enabled MPD will never amplify audio signal
+# above its original level. If replaygain_limit is disabled such amplification
+# might occur. By default this setting is enabled.
+#
+#replaygain_limit		"yes"
+#
 # This setting enables on-the-fly normalization volume adjustment. This will
 # result in the volume of all playing audio to be adjusted so the output has 
 # equal "loudness". This setting is disabled by default.
@@ -346,7 +388,7 @@ input {
 # this may have undesired effects. Don't change this if you don't know what you
 # are doing.
 #
-#audio_buffer_size		"2048"
+#audio_buffer_size		"4096"
 #
 # This setting controls the percentage of the buffer which is filled before 
 # beginning to play. Increasing this reduces the chance of audio file skipping, 
@@ -371,36 +413,6 @@ input {
 #
 ###############################################################################

-# Client TCP keep alive #######################################################
-#
-# For clients connected by TCP on supported platforms.
-# Allows detection of dangling connections due to clients disappearing from
-# the network without closing their connections.
-#
-# This is not usually necessary but can be useful in cases such as wifi connectected
-# clients that go in and out of network range or turn off wifi without closing their
-# connections. Combined with low max_connections this can soon cause clients to not
-# be able to connect.
-#
-#
-# Enable tcp keepalive on new client connections (default is "no")
-#
-#tcp_keep_alive "no"
-#
-# Time in seconds since the last communication on the connection and before
-# the keepalive probing is started. (default is 7200 seconds)
-#tcp_keep_alive_idle "7200"
-#
-# Interval in seconds between keepalive probes, once a probe started.
-# (default is 75 seconds)
-#tcp_keep_alive_interval "75"
-#
-# Number of failed probes before the connection is pronounced dead and
-# the connection is closed. (default is 9 times)
-#tcp_keep_alive_count "9"
-#
-###############################################################################
-
 # Character Encoding ##########################################################
 #
 # If file or directory names do not display correctly for your locale then you 
--- a/doc/protocol.xml
+++ b/doc/protocol.xml
@@ -768,6 +768,25 @@
            </para>
          </listitem>
        </varlistentry>
+        <varlistentry id="command_volume">
+          <term>
+            <cmdsynopsis>
+              <command>volume</command>
+              <arg choice="req"><replaceable>CHANGE</replaceable></arg>
+            </cmdsynopsis>
+          </term>
+          <listitem>
+            <para>
+              Changes volume by amount <varname>CHANGE</varname>.
+            </para>
+            <note>
+              <para>
+                <command>volume</command> is deprecated, use
+                <command>setvol</command> instead.
+              </para>
+            </note>
+          </listitem>
+        </varlistentry>
      </variablelist>
    </section>

@@ -1464,9 +1483,13 @@ OK
            <para>
              Finds songs in the db that are exactly
              <varname>WHAT</varname>.  <varname>TYPE</varname> can
-              be any tag supported by MPD, or one of the two special
+              be any tag supported by MPD, or one of the three special
              parameters — <parameter>file</parameter> to search by
-              full path (relative to database root), and
+
+              full path (relative to the music directory),
+              <parameter>in</parameter> to restrict the search to
+              songs in the given directory (also relative to the music
+              directory) and
              <parameter>any</parameter> to match against all
              available tags.  <varname>WHAT</varname> is what to find.
            </para>
@@ -1563,6 +1586,32 @@ OK
            </para>
          </listitem>
        </varlistentry>
+        <varlistentry id="command_readcomments">
+          <term>
+            <cmdsynopsis>
+              <command>readcomments</command>
+              <arg><replaceable>URI</replaceable></arg>
+            </cmdsynopsis>
+          </term>
+          <listitem>
+            <para>
+              Read "comments" (i.e. key-value pairs) from the file
+              specified by "URI".  This "URI" can be a path relative
+              to the music directory or a URL in the form
+              "file:///foo/bar.ogg".
+            </para>
+            <para>
+              The response consists of lines in the form "KEY: VALUE".
+              Comments with suspicious characters (e.g. newlines) are
+              ignored silently.
+            </para>
+            <para>
+              The meaning of these depends on the codec, and not all
+              decoder plugins support it.  For example, on Ogg files,
+              this lists the Vorbis comments.
+            </para>
+          </listitem>
+        </varlistentry>
        <varlistentry id="command_search">
          <term>
            <cmdsynopsis>
@@ -1800,7 +1849,10 @@ OK
          </term>
          <listitem>
            <para>
-              Closes the connection to MPD.
+              Closes the connection to MPD.  MPD will try to send the
+              remaining output buffer before it actually closes the
+              connection, but that cannot be guaranteed.  This command
+              will not generate a response.
            </para>
          </listitem>
        </varlistentry>
@@ -1876,6 +1928,20 @@ OK
            </para>
          </listitem>
        </varlistentry>
+        <varlistentry id="command_toggleoutput">
+          <term>
+            <cmdsynopsis>
+              <command>toggleoutput</command>
+              <arg choice="req"><replaceable>ID</replaceable></arg>
+            </cmdsynopsis>
+          </term>
+          <listitem>
+            <para>
+              Turns an output on or off, depending on the current
+              state.
+            </para>
+          </listitem>
+        </varlistentry>
        <varlistentry id="command_outputs">
          <term>
            <cmdsynopsis>
--- a/doc/user.xml
+++ b/doc/user.xml
@@ -67,11 +67,11 @@

      <para>
        Download the source tarball from <ulink
-        url="http://mpd.wikia.com/wiki/Server">the MPD home
+        url="http://www.musicpd.org/download.html">the MPD home
        page</ulink> and unpack it:
      </para>

-      <programlisting>tar xjf mpd-version.tar.bz
+      <programlisting>tar xf mpd-version.tar.xz
 cd mpd-version</programlisting>

      <para>
@@ -164,6 +164,53 @@ systemctl start mpd.socket</programlisting>
      </para>
    </section>

+    <section>
+      <title>Configuring database plugins</title>
+
+      <para>
+        If a music directory is configured, one database plugin is
+        used.  To configure this plugin, add a
+        <varname>database</varname> block to
+        <filename>mpd.conf</filename>:
+      </para>
+
+      <programlisting>database {
+    plugin "simple"
+    path "/var/lib/mpd/db"
+}
+      </programlisting>
+
+      <para>
+        The following table lists the <varname>database</varname>
+        options valid for all plugins:
+      </para>
+
+      <informaltable>
+        <tgroup cols="2">
+          <thead>
+            <row>
+              <entry>
+                Name
+              </entry>
+              <entry>
+                Description
+              </entry>
+            </row>
+          </thead>
+          <tbody>
+            <row>
+              <entry>
+                <varname>plugin</varname>
+              </entry>
+              <entry>
+                The name of the plugin.
+              </entry>
+            </row>
+          </tbody>
+        </tgroup>
+      </informaltable>
+    </section>
+
    <section>
      <title>Configuring input plugins</title>

@@ -173,7 +220,7 @@ systemctl start mpd.socket</programlisting>
      </para>

      <programlisting>input {
-    plugin "lastfm"
+    plugin "despotify"
    user "foo"
    password "bar"
 }
@@ -389,6 +436,18 @@ systemctl start mpd.socket</programlisting>
                enabled.
              </entry>
            </row>
+            <row>
+              <entry>
+                <varname>tags</varname>
+                <parameter>yes|no</parameter>
+              </entry>
+              <entry>
+                If set to "no", then MPD will not send tags to this
+                output.  This is only useful for output plugins that
+                can receive tags, for example the
+                <varname>httpd</varname> output plugin.
+              </entry>
+            </row>
            <row>
              <entry>
                <varname>always_on</varname>
@@ -571,7 +630,7 @@ systemctl start mpd.socket</programlisting>
      </para>

      <para>
-        The <ulink url="http://mpd.wikia.com/wiki/Clients">MPD
+        The <ulink url="http://www.musicpd.org/clients/">MPD
        Wiki</ulink> contains an extensive list of clients to choose
        from.
      </para>
@@ -617,6 +676,81 @@ systemctl start mpd.socket</programlisting>
  <chapter>
    <title>Plugin reference</title>

+    <section>
+      <title>Database plugins</title>
+
+      <section>
+        <title><varname>simple</varname></title>
+
+        <para>
+          The default plugin.  Stores a copy of the database in
+          memory.  A file is used for permanent storage.
+        </para>
+
+        <informaltable>
+          <tgroup cols="2">
+            <thead>
+              <row>
+                <entry>Setting</entry>
+                <entry>Description</entry>
+              </row>
+            </thead>
+            <tbody>
+              <row>
+                <entry>
+                  <varname>path</varname>
+                </entry>
+                <entry>
+                  The path of the database file.
+                </entry>
+              </row>
+            </tbody>
+          </tgroup>
+        </informaltable>
+      </section>
+
+      <section>
+        <title><varname>proxy</varname></title>
+
+        <para>
+          Provides access to the database of another MPD instance
+          using <filename>libmpdclient</filename>.  This is useful
+          when you run mount the music directory via NFS/SMB, and the
+          file server already runs a MPD instance.  Only the file
+          server needs to update the database.
+        </para>
+
+        <informaltable>
+          <tgroup cols="2">
+            <thead>
+              <row>
+                <entry>Setting</entry>
+                <entry>Description</entry>
+              </row>
+            </thead>
+            <tbody>
+              <row>
+                <entry>
+                  <varname>host</varname>
+                </entry>
+                <entry>
+                  The host name of the "master" MPD instance.
+                </entry>
+              </row>
+              <row>
+                <entry>
+                  <varname>port</varname>
+                </entry>
+                <entry>
+                  The port number of the "master" MPD instance.
+                </entry>
+              </row>
+            </tbody>
+          </tgroup>
+        </informaltable>
+      </section>
+    </section>
+
    <section>
      <title>Input plugins</title>

@@ -683,6 +817,30 @@ systemctl start mpd.socket</programlisting>
          simplest form <filename>cdda://</filename> plays the whole
          disc in the default drive.
        </para>
+
+        <informaltable>
+          <tgroup cols="2">
+            <thead>
+              <row>
+                <entry>Setting</entry>
+                <entry>Description</entry>
+              </row>
+            </thead>
+            <tbody>
+              <row>
+                <entry>
+                  <varname>default_bute_order</varname>
+                <parameter>little_endian|big_endian</parameter>
+                </entry>
+                <entry>
+                  If the CD drive does not specify a byte order, MPD
+                  assumes it is the CPU's native byte order.  This
+                  setting allows overriding this.
+                </entry>
+              </row>
+            </tbody>
+          </tgroup>
+        </informaltable>
      </section>

      <section>
@@ -744,35 +902,6 @@ systemctl start mpd.socket</programlisting>
          </tgroup>
        </informaltable>
      </section>
-
-      <section>
-        <title><varname>soup</varname></title>
-
-        <para>
-          Opens remote files or streams over HTTP.
-        </para>
-
-        <informaltable>
-          <tgroup cols="2">
-            <thead>
-              <row>
-                <entry>Setting</entry>
-                <entry>Description</entry>
-              </row>
-            </thead>
-            <tbody>
-              <row>
-                <entry>
-                  <varname>proxy</varname>
-                </entry>
-                <entry>
-                  Sets the address of the HTTP proxy server.
-                </entry>
-              </row>
-            </tbody>
-          </tgroup>
-        </informaltable>
-      </section>
    </section>

    <section>
@@ -874,6 +1003,16 @@ systemctl start mpd.socket</programlisting>
              </row>
            </thead>
            <tbody>
+              <row>
+                <entry>
+                  <varname>loop</varname>
+                  <parameter>yes|no</parameter>
+                </entry>
+                <entry>
+                  Allow backward loops in modules.  Default is
+		  <parameter>no</parameter>.
+                </entry>
+              </row>
              <row>
                <entry>
                  <varname>sample_rate</varname>
@@ -888,6 +1027,37 @@ systemctl start mpd.socket</programlisting>
        </informaltable>
      </section>

+      <section>
+        <title><varname>modplug</varname></title>
+
+        <para>
+          Module player based on MODPlug.
+        </para>
+
+        <informaltable>
+          <tgroup cols="2">
+            <thead>
+              <row>
+                <entry>Setting</entry>
+                <entry>Description</entry>
+              </row>
+            </thead>
+            <tbody>
+              <row>
+                <entry>
+                  <varname>loop_count</varname>
+                </entry>
+                <entry>
+                  Number of times to loop the module if it uses backward loops.
+                  Default is <parameter>0</parameter> which prevents looping.
+                  <parameter>-1</parameter> loops forever.
+                </entry>
+              </row>
+            </tbody>
+          </tgroup>
+        </informaltable>
+      </section>
+
      <section>
        <title><varname>wildmidi</varname></title>

@@ -1240,43 +1410,6 @@ systemctl start mpd.socket</programlisting>
        </para>
      </section>

-      <section>
-        <title><varname>ffado</varname></title>
-
-        <para>
-          The <varname>ffado</varname> plugin connects to FireWire
-          audio devices via <filename>libffado</filename>.
-        </para>
-
-        <para>
-          Warning: this plugin was not tested successfully.  I just
-          couldn't keep libffado2 from crashing.  Use at your own
-          risk.
-        </para>
-
-        <informaltable>
-          <tgroup cols="2">
-            <thead>
-              <row>
-                <entry>Setting</entry>
-                <entry>Description</entry>
-              </row>
-            </thead>
-            <tbody>
-              <row>
-                <entry>
-                  <varname>device</varname>
-                  <parameter>NAME</parameter>
-                </entry>
-                <entry>
-                  Sets the device which should be used, e.g. "hw:0".
-                </entry>
-              </row>
-            </tbody>
-          </tgroup>
-        </informaltable>
-      </section>
-
      <section>
        <title><varname>jack</varname></title>

@@ -1361,16 +1494,6 @@ systemctl start mpd.socket</programlisting>
        </informaltable>
      </section>

-      <section>
-        <title><varname>mvp</varname></title>
-
-        <para>
-          The <varname>mvp</varname> plugin uses the proprietary
-          Hauppauge Media MVP interface.  We do not know any user of
-          this plugin, and we do not know if it actually works.
-        </para>
-      </section>
-
      <section>
        <title><varname>httpd</varname></title>

@@ -1888,45 +2011,6 @@ systemctl start mpd.socket</programlisting>
    <section>
      <title>Playlist plugins</title>

-      <section>
-        <title><varname>lastfm</varname></title>
-
-        <para>
-          Plays last.fm radio.
-        </para>
-
-        <informaltable>
-          <tgroup cols="2">
-            <thead>
-              <row>
-                <entry>Setting</entry>
-                <entry>Description</entry>
-              </row>
-            </thead>
-            <tbody>
-              <row>
-                <entry>
-                  <varname>user</varname>
-                  <parameter>USERNAME</parameter>
-                </entry>
-                <entry>
-                  The last.fm user name.
-                </entry>
-              </row>
-              <row>
-                <entry>
-                  <varname>password</varname>
-                  <parameter>PWD</parameter>
-                </entry>
-                <entry>
-                  The last.fm password.
-                </entry>
-              </row>
-            </tbody>
-          </tgroup>
-        </informaltable>
-      </section>
-
      <section>
        <title><varname>embcue</varname></title>

--- a/m4/ax_append_link_flags.m4
+++ b/m4/ax_append_link_flags.m4
@@ -0,0 +1,61 @@
+# ===========================================================================
+#   http://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS])
+#
+# DESCRIPTION
+#
+#   For every FLAG1, FLAG2 it is checked whether the linker works with the
+#   flag.  If it does, the flag is added FLAGS-VARIABLE
+#
+#   If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is
+#   used. During the check the flag is always added to the linker's flags.
+#
+#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
+#   when the check is done.  The check is thus made with the flags: "LDFLAGS
+#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
+#   issue an error when a bad flag is given.
+#
+#   NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG.
+#   Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS.
+#
+# LICENSE
+#
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 2
+
+AC_DEFUN([AX_APPEND_LINK_FLAGS],
+[for flag in $1; do
+  AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3])
+done
+])dnl AX_APPEND_LINK_FLAGS
--- a/m4/ax_check_link_flag.m4
+++ b/m4/ax_check_link_flag.m4
@@ -0,0 +1,71 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS])
+#
+# DESCRIPTION
+#
+#   Check whether the given FLAG works with the linker or gives an error.
+#   (Warnings, however, are ignored)
+#
+#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+#   success/failure.
+#
+#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
+#   when the check is done.  The check is thus made with the flags: "LDFLAGS
+#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
+#   issue an error when a bad flag is given.
+#
+#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
+#   macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 2
+
+AC_DEFUN([AX_CHECK_LINK_FLAG],
+[AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl
+AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [
+  ax_check_save_flags=$LDFLAGS
+  LDFLAGS="$LDFLAGS $4 $1"
+  AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+    [AS_VAR_SET(CACHEVAR,[yes])],
+    [AS_VAR_SET(CACHEVAR,[no])])
+  LDFLAGS=$ax_check_save_flags])
+AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes],
+  [m4_default([$2], :)],
+  [m4_default([$3], :)])
+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl AX_CHECK_LINK_FLAGS
--- a/m4/ax_cxx_compile_stdcxx_0x.m4
+++ b/m4/ax_cxx_compile_stdcxx_0x.m4
@@ -0,0 +1,107 @@
+# ============================================================================
+#  http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_0x.html
+# ============================================================================
+#
+# SYNOPSIS
+#
+#   AX_CXX_COMPILE_STDCXX_0X
+#
+# DESCRIPTION
+#
+#   Check for baseline language coverage in the compiler for the C++0x
+#   standard.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 7
+
+AU_ALIAS([AC_CXX_COMPILE_STDCXX_0X], [AX_CXX_COMPILE_STDCXX_0X])
+AC_DEFUN([AX_CXX_COMPILE_STDCXX_0X], [
+  AC_CACHE_CHECK(if g++ supports C++0x features without additional flags,
+  ax_cv_cxx_compile_cxx0x_native,
+  [AC_LANG_SAVE
+  AC_LANG_CPLUSPLUS
+  AC_TRY_COMPILE([
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);],,
+  ax_cv_cxx_compile_cxx0x_native=yes, ax_cv_cxx_compile_cxx0x_native=no)
+  AC_LANG_RESTORE
+  ])
+
+  AC_CACHE_CHECK(if g++ supports C++0x features with -std=c++0x,
+  ax_cv_cxx_compile_cxx0x_cxx,
+  [AC_LANG_SAVE
+  AC_LANG_CPLUSPLUS
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -std=c++0x"
+  AC_TRY_COMPILE([
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);],,
+  ax_cv_cxx_compile_cxx0x_cxx=yes, ax_cv_cxx_compile_cxx0x_cxx=no)
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  AC_LANG_RESTORE
+  ])
+
+  AC_CACHE_CHECK(if g++ supports C++0x features with -std=gnu++0x,
+  ax_cv_cxx_compile_cxx0x_gxx,
+  [AC_LANG_SAVE
+  AC_LANG_CPLUSPLUS
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -std=gnu++0x"
+  AC_TRY_COMPILE([
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);],,
+  ax_cv_cxx_compile_cxx0x_gxx=yes, ax_cv_cxx_compile_cxx0x_gxx=no)
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  AC_LANG_RESTORE
+  ])
+
+  if test "$ax_cv_cxx_compile_cxx0x_native" = yes ||
+     test "$ax_cv_cxx_compile_cxx0x_cxx" = yes ||
+     test "$ax_cv_cxx_compile_cxx0x_gxx" = yes; then
+    AC_DEFINE(HAVE_STDCXX_0X,,[Define if g++ supports C++0x features. ])
+  fi
+])
--- a/m4/faad.m4
+++ b/m4/faad.m4
@@ -8,38 +8,14 @@ AC_ARG_ENABLE(aac,
 		[disable AAC support (default: enable)]),,
 	enable_aac=yes)

-AC_ARG_WITH(faad,
-	AS_HELP_STRING([--with-faad=PFX],
-		[prefix where faad2 is installed (optional)]),,
-	faad_prefix="")
-AC_ARG_WITH(faad-libraries,
-	AS_HELP_STRING([--with-faad-libraries=DIR],
-		[directory where faad2 library is installed (optional)]),,
-	faad_libraries="")
-AC_ARG_WITH(faad-includes,
-	AS_HELP_STRING([--with-faad-includes=DIR],
-		[directory where faad2 header files are installed (optional)]),,
-	faad_includes="")
-
 if test x$enable_aac = xyes; then
-	if test "x$faad_libraries" != "x" ; then
-		FAAD_LIBS="-L$faad_libraries"
-	elif test "x$faad_prefix" != "x" ; then
-		FAAD_LIBS="-L$faad_prefix/lib"
-	fi
-
-	FAAD_LIBS="$FAAD_LIBS -lfaad"
-
-	if test "x$faad_includes" != "x" ; then
-		FAAD_CFLAGS="-I$faad_includes"
-	elif test "x$faad_prefix" != "x" ; then
-		FAAD_CFLAGS="-I$faad_prefix/include"
-	fi
+	FAAD_LIBS="-lfaad"
+	FAAD_CFLAGS=""

 	oldcflags=$CFLAGS
 	oldlibs=$LIBS
 	oldcppflags=$CPPFLAGS
-	CFLAGS="$CFLAGS $FAAD_CFLAGS -I."
+	CFLAGS="$CFLAGS $FAAD_CFLAGS"
 	LIBS="$LIBS $FAAD_LIBS"
 	CPPFLAGS=$CFLAGS
 	AC_CHECK_HEADER(faad.h,,enable_aac=no)
@@ -47,77 +23,36 @@ if test x$enable_aac = xyes; then
 		AC_CHECK_DECL(FAAD2_VERSION,,enable_aac=no,[#include <faad.h>])
 	fi
 	if test x$enable_aac = xyes; then
-		AC_CHECK_DECL(faacDecInit2,,enable_aac=no,[#include <faad.h>])
+		AC_CHECK_LIB(faad,NeAACDecInit2,,enable_aac=no)
 	fi
 	if test x$enable_aac = xyes; then
-		AC_CHECK_LIB(faad,faacDecInit2,,enable_aac=no)
-		if test x$enable_aac = xno; then
-			enable_aac=yes
-			AC_CHECK_LIB(faad,NeAACDecInit2,,enable_aac=no)
-		fi
-	fi
-	if test x$enable_aac = xyes; then
-  		AC_MSG_CHECKING(that FAAD2 uses buffer and bufferlen)
-		AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-#include <faad.h>
-
-int main() {
-	char buffer;
-	long bufferlen = 0;
-	faacDecHandle decoder;
-	faacDecFrameInfo frameInfo;
-	faacDecConfigurationPtr config;
-	unsigned char channels;
-	long sampleRate;
-        mp4AudioSpecificConfig mp4ASC;
-
-	decoder = faacDecOpen();
-	config = faacDecGetCurrentConfiguration(decoder);
-	config->outputFormat = FAAD_FMT_16BIT;
-	faacDecSetConfiguration(decoder,config);
-	AudioSpecificConfig(&buffer, bufferlen, &mp4ASC);
-	faacDecInit(decoder,&buffer,bufferlen,&sampleRate,&channels);
-	faacDecInit2(decoder,&buffer,bufferlen,&sampleRate,&channels);
-	faacDecDecode(decoder,&frameInfo,&buffer,bufferlen);
-
-	return 0;
-}
-])],[AC_MSG_RESULT(yes);AC_DEFINE(HAVE_FAAD_BUFLEN_FUNCS,1,[Define if FAAD2 uses buflen in function calls])],[AC_MSG_RESULT(no);
 		AC_MSG_CHECKING(that FAAD2 can even be used)
 		AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #include <faad.h>

 int main() {
 	char buffer;
-	faacDecHandle decoder;
-	faacDecFrameInfo frameInfo;
-	faacDecConfigurationPtr config;
+	NeAACDecHandle decoder;
+	NeAACDecFrameInfo frameInfo;
+	NeAACDecConfigurationPtr config;
 	unsigned char channels;
 	long sampleRate;
 	long bufferlen = 0;
-	unsigned long dummy1_32;
-        unsigned char dummy2_8, dummy3_8, dummy4_8, dummy5_8, dummy6_8,
-                                dummy7_8, dummy8_8;

-	decoder = faacDecOpen();
-	config = faacDecGetCurrentConfiguration(decoder);
+	decoder = NeAACDecOpen();
+	config = NeAACDecGetCurrentConfiguration(decoder);
 	config->outputFormat = FAAD_FMT_16BIT;
-	faacDecSetConfiguration(decoder,config);
-	AudioSpecificConfig(&buffer,&dummy1_32,&dummy2_8,
-                                &dummy3_8,&dummy4_8,&dummy5_8,
-                                &dummy6_8,&dummy7_8,&dummy8_8);
-	faacDecInit(decoder,&buffer,&sampleRate,&channels);
-	faacDecInit2(decoder,&buffer,bufferlen,&sampleRate,&channels);
-	faacDecDecode(decoder,&frameInfo,&buffer);
-	faacDecClose(decoder);
+	NeAACDecSetConfiguration(decoder,config);
+	NeAACDecInit(decoder,&buffer,bufferlen,&sampleRate,&channels);
+	NeAACDecInit2(decoder,&buffer,bufferlen,&sampleRate,&channels);
+	NeAACDecDecode(decoder,&frameInfo,&buffer,bufferlen);
+	NeAACDecClose(decoder);

 	return 0;
 }
 ])],AC_MSG_RESULT(yes),[AC_MSG_RESULT(no);enable_aac=no])
-		])
 	fi
 	if test x$enable_aac = xyes; then
-		AC_CHECK_MEMBERS([faacDecConfiguration.downMatrix,faacDecConfiguration.dontUpSampleImplicitSBR,faacDecFrameInfo.samplerate],,,[#include <faad.h>])
 		AC_DEFINE(HAVE_FAAD,1,[Define to use FAAD2 for AAC decoding])
 	else
 		AC_MSG_WARN([faad2 lib needed for MP4/AAC support -- disabling MP4/AAC support])
@@ -145,7 +80,7 @@ int main() {
 	unsigned char channels;
 	uint32_t sample_rate;

-	faacDecInit2(NULL, NULL, 0, &sample_rate, &channels);
+	NeAACDecInit2(NULL, NULL, 0, &sample_rate, &channels);
 	return 0;
 }
 	])],
@@ -153,43 +88,12 @@ int main() {
 		[AC_MSG_RESULT(broken);
 		AC_DEFINE(HAVE_FAAD_LONG, 1, [Define if faad.h uses the broken "unsigned long" pointers])])

-	CFLAGS=$oldcflags
-	LIBS=$oldlibs
-	CPPFLAGS=$oldcppflags
-fi
-
-if test x$enable_aac = xyes; then
-	enable_mp4=yes
-	MP4FF_LIBS="-lmp4ff"
-
-	oldcflags=$CFLAGS
-	oldlibs=$LIBS
-	oldcppflags=$CPPFLAGS
-	CFLAGS="$CFLAGS $FAAD_CFLAGS"
-	LIBS="$LIBS $FAAD_LIBS $MP4FF_LIBS"
-	CPPFLAGS=$CFLAGS
-
-	AC_CHECK_HEADER(mp4ff.h,,enable_mp4=no)
-
-	if test x$enable_mp4 = xyes; then
-		AC_CHECK_LIB(mp4ff,mp4ff_open_read,,enable_mp4=no)
-	fi
-
-	if test x$enable_mp4 = xyes; then
-		AC_SUBST(MP4FF_LIBS)
-		AC_DEFINE(HAVE_MP4, 1, [Define to use FAAD2+mp4ff for MP4 decoding])
-	else
-		AC_MSG_WARN([libmp4ff needed for MP4 support -- disabling MP4 support])
-		unset MP4FF_LIBS
-	fi
-
 	CFLAGS=$oldcflags
 	LIBS=$oldlibs
 	CPPFLAGS=$oldcppflags
 else
-	enable_mp4=no
-	FAAD_CFLAGS=""
 	FAAD_LIBS=""
+	FAAD_CFLAGS=""
 fi

 AC_SUBST(FAAD_CFLAGS)
--- a/m4/mpd_auto.m4
+++ b/m4/mpd_auto.m4
@@ -73,8 +73,26 @@ AC_DEFUN([MPD_AUTO_PKG_LIB], [
 			[eval "found_$1=yes"],
 			AC_CHECK_LIB($4, $5,
 				[eval "found_$1=yes $2_LIBS='$6' $2_CFLAGS='$7'"],
-				[eval "found_$1=no"]))
+				[eval "found_$1=no"],
+				[$6]))
 	fi

 	MPD_AUTO_RESULT([$1], [$8], [$9])
 ])
+
+dnl Wrapper for AC_CHECK_LIB.
+dnl
+dnl Parameters: varname1, varname2, libname, symname, libs, cflags, description, errmsg
+AC_DEFUN([MPD_AUTO_LIB], [
+	AC_SUBST([$2_LIBS], [])
+	AC_SUBST([$2_CFLAGS], [])
+
+	if eval "test x`echo '$'enable_$1` != xno"; then
+		AC_CHECK_LIB($3, $4,
+			[eval "found_$1=yes $2_LIBS='$5' $2_CFLAGS='$6'"],
+			[eval "found_$1=no"],
+			[$5])
+	fi
+
+	MPD_AUTO_RESULT([$1], [$7], [$8])
+])
--- a/m4/mpd_func.m4
+++ b/m4/mpd_func.m4
@@ -0,0 +1,12 @@
+dnl MPD_OPTIONAL_FUNC(name, func, macro)
+dnl
+dnl Allow the user to enable or disable the use of a function.  If the
+dnl option is not specified, the function is auto-detected.
+AC_DEFUN([MPD_OPTIONAL_FUNC], [
+	AC_ARG_ENABLE([$1],
+		AS_HELP_STRING([--enable-$1],
+			[use the function "$1" (default: auto)]),
+		[test xenable_$1 = xyes && AC_DEFINE([$3], 1, [Define to use $1])],
+		[AC_CHECK_FUNC([$2],
+			[AC_DEFINE([$3], 1, [Define to use $1])],)])
+])
--- a/mpd.service.in
+++ b/mpd.service.in
@@ -1,6 +1,6 @@
 [Unit]
 Description=Music Player Daemon
-After=sound.target
+After=network.target sound.target

 [Service]
 ExecStart=@prefix@/bin/mpd --no-daemon
--- a/scripts/makedist.sh
+++ b/scripts/makedist.sh
@@ -1,25 +0,0 @@
-#!/bin/sh
-PWD=`pwd`
-
-## If we're not in the scripts directory
-## assume the base directory.
-if test "`basename $PWD`" = "scripts"; then
-	cd ../
-else
-	MYOLDPWD=`pwd`
-	cd `dirname $0`/../
-fi
-
-if test -e Makefile
-then
-	make distclean
-fi
-./autogen.sh
-make
-make dist
-
-if test "`basename $PWD`" = "scripts"; then
-	cd contrib/
-else
-	cd $MYOLDPWD
-fi
--- a/scripts/mpd-indent.sh
+++ b/scripts/mpd-indent.sh
@@ -1,6 +0,0 @@
-#!/bin/sh
-indent -npro -kr -i8 -ts8 -sob -l80 -ss -ncs -cdw -cd0 -c0 -cp0 "$@"
-
-# there doesn't seem to be an indent switch for this, but this
-# forces goto labels to the left-most column, without indentation
-perl -i -p -e 's/^\s+(\w+):/$1:/g unless /^\s+default:/' "$@"
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -1,93 +0,0 @@
-#!/bin/sh -e
-#
-# This shell script tests the build of MPD with various compile-time
-# options.
-#
-# Author: Max Kellermann <max@duempel.org>
-
-PREFIX=/tmp/mpd
-rm -rf $PREFIX
-
-test "x$MAKE" != x || MAKE=make
-
-export CFLAGS="-Os"
-
-test -x configure || NOCONFIGURE=1 ./autogen.sh
-
-# all features on
-./configure --prefix=$PREFIX/full \
-    --disable-dependency-tracking --enable-debug --enable-werror \
-    --enable-un \
-    --enable-modplug \
-    --enable-ao --enable-mikmod --enable-mvp
-$MAKE install
-$MAKE distclean
-
-# no UN, no oggvorbis, no flac, enable oggflac
-./configure --prefix=$PREFIX/small \
-    --disable-dependency-tracking --enable-debug --enable-werror \
-    --disable-un \
-    --disable-flac --disable-vorbis --enable-oggflac
-$MAKE install
-$MAKE distclean
-
-# strip down (disable TCP, disable nearly all plugins)
-CFLAGS="$CFLAGS -DNDEBUG" \
-./configure --prefix=$PREFIX/tiny \
-    --disable-dependency-tracking --disable-debug --enable-werror \
-    --disable-tcp \
-    --disable-curl \
-    --disable-id3 --disable-lsr \
-    --disable-ao --disable-alsa --disable-jack --disable-pulse --disable-fifo \
-    --disable-shout-ogg --disable-shout-mp3 --disable-lame-encoder \
-    --disable-ffmpeg --disable-wavpack --disable-mpc --disable-aac \
-    --disable-flac --disable-vorbis --disable-oggflac --disable-audiofile \
-    --disable-cue \
-    --with-zeroconf=no
-$MAKE install
-$MAKE distclean
-
-# shout: ogg without mp3
-# sndfile instead of modplug
-./configure --prefix=$PREFIX/shout_ogg \
-    --disable-dependency-tracking --disable-debug --enable-werror \
-    --disable-tcp \
-    --disable-curl \
-    --disable-id3 --disable-lsr \
-    --disable-ao --disable-alsa --disable-jack --disable-pulse --disable-fifo \
-    --enable-shout-ogg --disable-shout-mp3 --disable-lame-encoder \
-    --disable-ffmpeg --disable-wavpack --disable-mpc --disable-aac \
-    --disable-flac --enable-vorbis --disable-oggflac --disable-audiofile \
-    --disable-modplug --enable-sndfile \
-    --with-zeroconf=no
-$MAKE install
-$MAKE distclean
-
-# shout: mp3 without ogg
-./configure --prefix=$PREFIX/shout_mp3 \
-    --disable-dependency-tracking --disable-debug --enable-werror \
-    --disable-tcp \
-    --disable-curl \
-    --disable-id3 --disable-lsr \
-    --disable-ao --disable-alsa --disable-jack --disable-pulse --disable-fifo \
-    --disable-shout-ogg --enable-shout-mp3 --enable-lame-encoder \
-    --disable-ffmpeg --disable-wavpack --disable-mpc --disable-aac \
-    --disable-flac --disable-vorbis --disable-oggflac --disable-audiofile \
-    --with-zeroconf=no
-$MAKE install
-$MAKE distclean
-
-# oggvorbis + oggflac
-./configure --prefix=$PREFIX/oggvorbisflac \
-    --disable-dependency-tracking --disable-debug --enable-werror \
-    --disable-tcp \
-    --disable-curl \
-    --disable-id3 --disable-lsr \
-    --disable-mp3 \
-    --disable-ao --disable-alsa --disable-jack --disable-pulse --disable-fifo \
-    --disable-shout-ogg --disable-shout-mp3 --disable-lame-encoder \
-    --disable-ffmpeg --disable-wavpack --disable-mpc --disable-aac \
-    --disable-flac --enable-vorbis --enable-oggflac --disable-audiofile \
-    --with-zeroconf=no
-$MAKE install
-$MAKE distclean
--- a/src/ArchiveDomain.cxx
+++ b/src/ArchiveDomain.cxx
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "ArchiveDomain.hxx"
+#include "util/Domain.hxx"
+
+const Domain archive_domain("archive");
--- a/src/input/despotify_input_plugin.h
+++ b/src/input/despotify_input_plugin.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,9 +17,9 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef INPUT_DESPOTIFY_H
-#define INPUT_DESPOTIFY_H
+#ifndef MPD_ARCHIVE_DOMAIN_HXX
+#define MPD_ARCHIVE_DOMAIN_HXX

-extern const struct input_plugin input_plugin_despotify;
+extern const class Domain archive_domain;

 #endif
--- a/src/ArchiveFile.hxx
+++ b/src/ArchiveFile.hxx
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_ARCHIVE_FILE_HXX
+#define MPD_ARCHIVE_FILE_HXX
+
+class Mutex;
+class Cond;
+class Error;
+
+class ArchiveFile {
+public:
+	const struct archive_plugin &plugin;
+
+	ArchiveFile(const struct archive_plugin &_plugin)
+		:plugin(_plugin) {}
+
+protected:
+	/**
+	 * Use Close() instead of delete.
+	 */
+	~ArchiveFile() {}
+
+public:
+	virtual void Close() = 0;
+
+	/**
+	 * Visit all entries inside this archive.
+	 */
+	virtual void Visit(ArchiveVisitor &visitor) = 0;
+
+	/**
+	 * Opens an InputStream of a file within the archive.
+	 *
+	 * @param path the path within the archive
+	 */
+	virtual InputStream *OpenStream(const char *path,
+					Mutex &mutex, Cond &cond,
+					Error &error) = 0;
+};
+
+#endif
--- a/src/ArchiveList.cxx
+++ b/src/ArchiveList.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,15 +18,15 @@
 */

 #include "config.h"
-#include "archive_list.h"
-#include "archive_plugin.h"
-#include "string_util.h"
-#include "archive/bz2_archive_plugin.h"
-#include "archive/iso9660_archive_plugin.h"
-#include "archive/zzip_archive_plugin.h"
+#include "ArchiveList.hxx"
+#include "ArchivePlugin.hxx"
+#include "util/StringUtil.hxx"
+#include "archive/Bzip2ArchivePlugin.hxx"
+#include "archive/Iso9660ArchivePlugin.hxx"
+#include "archive/ZzipArchivePlugin.hxx"
+#include "util/Macros.hxx"

 #include <string.h>
-#include <glib.h>

 const struct archive_plugin *const archive_plugins[] = {
 #ifdef HAVE_BZ2
@@ -38,11 +38,11 @@ const struct archive_plugin *const archive_plugins[] = {
 #ifdef HAVE_ISO9660
 	&iso9660_archive_plugin,
 #endif
-	NULL
+	nullptr
 };

 /** which plugins have been initialized successfully? */
-static bool archive_plugins_enabled[G_N_ELEMENTS(archive_plugins) - 1];
+static bool archive_plugins_enabled[ARRAY_SIZE(archive_plugins) - 1];

 #define archive_plugins_for_each_enabled(plugin) \
 	archive_plugins_for_each(plugin) \
@@ -51,15 +51,15 @@ static bool archive_plugins_enabled[G_N_ELEMENTS(archive_plugins) - 1];
 const struct archive_plugin *
 archive_plugin_from_suffix(const char *suffix)
 {
-	if (suffix == NULL)
-		return NULL;
+	if (suffix == nullptr)
+		return nullptr;

 	archive_plugins_for_each_enabled(plugin)
-		if (plugin->suffixes != NULL &&
+		if (plugin->suffixes != nullptr &&
 		    string_array_contains(plugin->suffixes, suffix))
 			return plugin;

-	return NULL;
+	return nullptr;
 }

 const struct archive_plugin *
@@ -69,14 +69,14 @@ archive_plugin_from_name(const char *name)
 		if (strcmp(plugin->name, name) == 0)
 			return plugin;

-	return NULL;
+	return nullptr;
 }

 void archive_plugin_init_all(void)
 {
-	for (unsigned i = 0; archive_plugins[i] != NULL; ++i) {
+	for (unsigned i = 0; archive_plugins[i] != nullptr; ++i) {
 		const struct archive_plugin *plugin = archive_plugins[i];
-		if (plugin->init == NULL || archive_plugins[i]->init())
+		if (plugin->init == nullptr || archive_plugins[i]->init())
 			archive_plugins_enabled[i] = true;
 	}
 }
@@ -84,7 +84,7 @@ void archive_plugin_init_all(void)
 void archive_plugin_deinit_all(void)
 {
 	archive_plugins_for_each_enabled(plugin)
-		if (plugin->finish != NULL)
+		if (plugin->finish != nullptr)
 			plugin->finish();
 }

--- a/src/ArchiveList.hxx
+++ b/src/ArchiveList.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,8 +17,8 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef MPD_ARCHIVE_LIST_H
-#define MPD_ARCHIVE_LIST_H
+#ifndef MPD_ARCHIVE_LIST_HXX
+#define MPD_ARCHIVE_LIST_HXX

 struct archive_plugin;

@@ -27,7 +27,7 @@ extern const struct archive_plugin *const archive_plugins[];
 #define archive_plugins_for_each(plugin) \
 	for (const struct archive_plugin *plugin, \
 		*const*archive_plugin_iterator = &archive_plugins[0]; \
-		(plugin = *archive_plugin_iterator) != NULL; \
+		(plugin = *archive_plugin_iterator) != nullptr; \
 		++archive_plugin_iterator)

 /* interface for using plugins */
--- a/src/ArchiveLookup.cxx
+++ b/src/ArchiveLookup.cxx
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h" /* must be first for large file support */
+#include "ArchiveLookup.hxx"
+#include "ArchiveDomain.hxx"
+#include "Log.hxx"
+
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+
+gcc_pure
+static char *
+FindSlash(char *p, size_t i)
+{
+	for (; i > 0; --i)
+		if (p[i] == '/')
+			return p + i;
+
+	return nullptr;
+}
+
+gcc_pure
+static const char *
+FindSuffix(const char *p, const char *i)
+{
+	for (; i > p; --i) {
+		if (*i == '.')
+			return i + 1;
+	}
+
+	return nullptr;
+}
+
+bool
+archive_lookup(char *pathname, const char **archive,
+	       const char **inpath, const char **suffix)
+{
+	size_t idx = strlen(pathname);
+
+	char *slash = nullptr;
+
+	while (true) {
+		//try to stat if its real directory
+		struct stat st_info;
+		if (stat(pathname, &st_info) == -1) {
+			if (errno != ENOTDIR) {
+				FormatErrno(archive_domain,
+					    "Failed to stat %s", pathname);
+				return false;
+			}
+		} else {
+			//is something found ins original path (is not an archive)
+			if (slash == nullptr)
+				return false;
+
+			//its a file ?
+			if (S_ISREG(st_info.st_mode)) {
+				//so the upper should be file
+				*archive = pathname;
+				*inpath = slash + 1;
+
+				//try to get suffix
+				*suffix = FindSuffix(pathname, slash - 1);
+				return true;
+			} else {
+				FormatError(archive_domain,
+					    "Not a regular file: %s",
+					    pathname);
+				return false;
+			}
+		}
+
+		//find one dir up
+		if (slash != nullptr)
+			*slash = '/';
+
+		slash = FindSlash(pathname, idx - 1);
+		if (slash == nullptr)
+			return false;
+
+		*slash = 0;
+		idx = slash - pathname;
+	}
+}
+
--- a/src/ArchiveLookup.hxx
+++ b/src/ArchiveLookup.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,17 +17,8 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#include "config.h" /* must be first for large file support */
-#include "archive_api.h"
-
-#include <stdio.h>
-
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-#include <glib.h>
+#ifndef MPD_ARCHIVE_LOOKUP_HXX
+#define MPD_ARCHIVE_LOOKUP_HXX

 /**
 *
@@ -46,66 +37,9 @@
 * inarchive pathname:		Talco - Combat Circus/12 - A la pachenka.mp3
 * and suffix:			 zip
 */
+bool
+archive_lookup(char *pathname, const char **archive,
+	       const char **inpath, const char **suffix);

-bool archive_lookup(char *pathname, char **archive, char **inpath, char **suffix)
-{
-	char *pathdupe;
-	int len, idx;
-	struct stat st_info;
-	bool ret = false;
-
-	*archive = NULL;
-	*inpath = NULL;
-	*suffix = NULL;
-
-	pathdupe = g_strdup(pathname);
-	len = idx = strlen(pathname);
-
-	while (idx > 0) {
-		//try to stat if its real directory
-		if (stat(pathdupe, &st_info) == -1) {
-			if (errno != ENOTDIR) {
-				g_warning("stat %s failed (errno=%d)\n", pathdupe, errno);
-				break;
-			}
-		} else {
-			//is something found ins original path (is not an archive)
-			if (idx == len) {
-				break;
-			}
-			//its a file ?
-			if (S_ISREG(st_info.st_mode)) {
-				//so the upper should be file
-				pathname[idx] = 0;
-				ret = true;
-				*archive = pathname;
-				*inpath = pathname + idx+1;
-
-				//try to get suffix
-				*suffix = NULL;
-				while (idx > 0) {
-					if (pathname[idx] == '.') {
-						*suffix = pathname + idx + 1;
-						break;
-					}
-					idx--;
-				}
-				break;
-			} else {
-				g_warning("not a regular file %s\n", pathdupe);
-				break;
-			}
-		}
-		//find one dir up
-		while (idx > 0) {
-			if (pathdupe[idx] == '/') {
-				pathdupe[idx] = 0;
-				break;
-			}
-			idx--;
-		}
-	}
-	g_free(pathdupe);
-	return ret;
-}
+#endif

--- a/src/ArchivePlugin.cxx
+++ b/src/ArchivePlugin.cxx
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ArchivePlugin.hxx"
+#include "ArchiveFile.hxx"
+#include "util/Error.hxx"
+
+#include <assert.h>
+
+ArchiveFile *
+archive_file_open(const struct archive_plugin *plugin, const char *path,
+		  Error &error)
+{
+	assert(plugin != nullptr);
+	assert(plugin->open != nullptr);
+	assert(path != nullptr);
+
+	ArchiveFile *file = plugin->open(path, error);
+	assert((file == nullptr) == error.IsDefined());
+
+	return file;
+}
--- a/src/ArchivePlugin.hxx
+++ b/src/ArchivePlugin.hxx
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_ARCHIVE_PLUGIN_HXX
+#define MPD_ARCHIVE_PLUGIN_HXX
+
+struct InputStream;
+class ArchiveFile;
+class ArchiveVisitor;
+class Error;
+
+struct archive_plugin {
+	const char *name;
+
+	/**
+	 * optional, set this to nullptr if the archive plugin doesn't
+	 * have/need one this must false if there is an error and
+	 * true otherwise
+	 */
+	bool (*init)(void);
+
+	/**
+	 * optional, set this to nullptr if the archive plugin doesn't
+	 * have/need one
+	 */
+	void (*finish)(void);
+
+	/**
+	 * tryes to open archive file and associates handle with archive
+	 * returns pointer to handle used is all operations with this archive
+	 * or nullptr when opening fails
+	 */
+	ArchiveFile *(*open)(const char *path_fs, Error &error);
+
+	/**
+	 * suffixes handled by this plugin.
+	 * last element in these arrays must always be a nullptr
+	 */
+	const char *const*suffixes;
+};
+
+ArchiveFile *
+archive_file_open(const struct archive_plugin *plugin, const char *path,
+		  Error &error);
+
+#endif
--- a/src/ArchiveVisitor.hxx
+++ b/src/ArchiveVisitor.hxx
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_ARCHIVE_VISITOR_HXX
+#define MPD_ARCHIVE_VISITOR_HXX
+
+class ArchiveVisitor {
+public:
+	virtual void VisitArchiveEntry(const char *path_utf8) = 0;
+};
+
+#endif
--- a/src/AudioCompress/compress.h
+++ b/src/AudioCompress/compress.h
@@ -19,6 +19,10 @@ struct CompressorConfig {

 struct Compressor;

+#ifdef __cplusplus
+extern "C" {
+#endif
+
 //! Create a new compressor (use history value of 0 for default)
 struct Compressor *Compressor_new(unsigned int history);

@@ -34,7 +38,12 @@ struct CompressorConfig *Compressor_getConfig(struct Compressor *);
 //! Process 16-bit signed data
 void Compressor_Process_int16(struct Compressor *, int16_t *data, unsigned int count);

+#ifdef __cplusplus
+}
+#endif
+
 //! TODO: Compressor_Process_int32, Compressor_Process_float, others as needed

 //! TODO: functions for getting at the peak/gain/clip history buffers (for monitoring)
+
 #endif
--- a/src/AudioConfig.cxx
+++ b/src/AudioConfig.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,42 +18,35 @@
 */

 #include "config.h"
-#include "audio_config.h"
-#include "audio_format.h"
-#include "audio_parser.h"
-#include "output_internal.h"
-#include "output_plugin.h"
-#include "output_all.h"
-#include "conf.h"
-#include "mpd_error.h"
+#include "AudioConfig.hxx"
+#include "AudioFormat.hxx"
+#include "AudioParser.hxx"
+#include "ConfigData.hxx"
+#include "ConfigGlobal.hxx"
+#include "ConfigOption.hxx"
+#include "util/Error.hxx"
+#include "system/FatalError.hxx"

-#include <glib.h>
+static AudioFormat configured_audio_format;

-#include <assert.h>
-#include <stdlib.h>
-
-static struct audio_format configured_audio_format;
-
-void getOutputAudioFormat(const struct audio_format *inAudioFormat,
-			  struct audio_format *outAudioFormat)
+AudioFormat
+getOutputAudioFormat(AudioFormat inAudioFormat)
 {
-	*outAudioFormat = *inAudioFormat;
-	audio_format_mask_apply(outAudioFormat, &configured_audio_format);
+	AudioFormat out_audio_format = inAudioFormat;
+	out_audio_format.ApplyMask(configured_audio_format);
+	return out_audio_format;
 }

 void initAudioConfig(void)
 {
 	const struct config_param *param = config_get_param(CONF_AUDIO_OUTPUT_FORMAT);
-	GError *error = NULL;
-	bool ret;

-	if (param == NULL)
+	if (param == nullptr)
 		return;

-	ret = audio_format_parse(&configured_audio_format, param->value,
-				 true, &error);
-	if (!ret)
-		MPD_ERROR("error parsing \"%s\" at line %i: %s",
-			  CONF_AUDIO_OUTPUT_FORMAT, param->line,
-			  error->message);
+	Error error;
+	if (!audio_format_parse(configured_audio_format, param->value.c_str(),
+				true, error))
+		FormatFatalError("error parsing line %i: %s",
+				 param->line, error.GetMessage());
 }
--- a/src/AudioConfig.hxx
+++ b/src/AudioConfig.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,15 +17,13 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef MPD_AUDIO_CONFIG_H
-#define MPD_AUDIO_CONFIG_H
+#ifndef MPD_AUDIO_CONFIG_HXX
+#define MPD_AUDIO_CONFIG_HXX

-#include <stdbool.h>
+struct AudioFormat;

-struct audio_format;
-
-void getOutputAudioFormat(const struct audio_format *inFormat,
-			  struct audio_format *outFormat);
+AudioFormat
+getOutputAudioFormat(AudioFormat inFormat);

 /* make sure initPlayerData is called before this function!! */
 void initAudioConfig(void);
--- a/src/AudioFormat.cxx
+++ b/src/AudioFormat.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,71 +17,69 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#include "audio_format.h"
+#include "AudioFormat.hxx"

 #include <assert.h>
 #include <stdio.h>

 void
-audio_format_mask_apply(struct audio_format *af,
-			const struct audio_format *mask)
+AudioFormat::ApplyMask(AudioFormat mask)
 {
-	assert(audio_format_valid(af));
-	assert(audio_format_mask_valid(mask));
+	assert(IsValid());
+	assert(mask.IsMaskValid());

-	if (mask->sample_rate != 0)
-		af->sample_rate = mask->sample_rate;
+	if (mask.sample_rate != 0)
+		sample_rate = mask.sample_rate;

-	if (mask->format != SAMPLE_FORMAT_UNDEFINED)
-		af->format = mask->format;
+	if (mask.format != SampleFormat::UNDEFINED)
+		format = mask.format;

-	if (mask->channels != 0)
-		af->channels = mask->channels;
+	if (mask.channels != 0)
+		channels = mask.channels;

-	assert(audio_format_valid(af));
+	assert(IsValid());
 }

 const char *
-sample_format_to_string(enum sample_format format)
+sample_format_to_string(SampleFormat format)
 {
 	switch (format) {
-	case SAMPLE_FORMAT_UNDEFINED:
+	case SampleFormat::UNDEFINED:
 		return "?";

-	case SAMPLE_FORMAT_S8:
+	case SampleFormat::S8:
 		return "8";

-	case SAMPLE_FORMAT_S16:
+	case SampleFormat::S16:
 		return "16";

-	case SAMPLE_FORMAT_S24_P32:
+	case SampleFormat::S24_P32:
 		return "24";

-	case SAMPLE_FORMAT_S32:
+	case SampleFormat::S32:
 		return "32";

-	case SAMPLE_FORMAT_FLOAT:
+	case SampleFormat::FLOAT:
 		return "f";

-	case SAMPLE_FORMAT_DSD:
+	case SampleFormat::DSD:
 		return "dsd";
 	}

 	/* unreachable */
 	assert(false);
-	return "?";
+	gcc_unreachable();
 }

 const char *
-audio_format_to_string(const struct audio_format *af,
+audio_format_to_string(const AudioFormat af,
 		       struct audio_format_string *s)
 {
-	assert(af != NULL);
-	assert(s != NULL);
+	assert(s != nullptr);

 	snprintf(s->buffer, sizeof(s->buffer), "%u:%s:%u",
-		 af->sample_rate, sample_format_to_string(af->format),
-		 af->channels);
+		 af.sample_rate, sample_format_to_string(af.format),
+		 af.channels);

 	return s->buffer;
 }
--- a/src/AudioFormat.hxx
+++ b/src/AudioFormat.hxx
@@ -0,0 +1,315 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_AUDIO_FORMAT_HXX
+#define MPD_AUDIO_FORMAT_HXX
+
+#include "Compiler.h"
+
+#include <stdint.h>
+#include <assert.h>
+
+#if defined(WIN32) && GCC_CHECK_VERSION(4,6)
+/* on WIN32, "FLOAT" is already defined, and this triggers -Wshadow */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wshadow"
+#endif
+
+enum class SampleFormat : uint8_t {
+	UNDEFINED = 0,
+
+	S8,
+	S16,
+
+	/**
+	 * Signed 24 bit integer samples, packed in 32 bit integers
+	 * (the most significant byte is filled with the sign bit).
+	 */
+	S24_P32,
+
+	S32,
+
+	/**
+	 * 32 bit floating point samples in the host's format.  The
+	 * range is -1.0f to +1.0f.
+	 */
+	FLOAT,
+
+	/**
+	 * Direct Stream Digital.  1-bit samples; each frame has one
+	 * byte (8 samples) per channel.
+	 */
+	DSD,
+};
+
+#if defined(WIN32) && GCC_CHECK_VERSION(4,6)
+#pragma GCC diagnostic pop
+#endif
+
+static constexpr unsigned MAX_CHANNELS = 8;
+
+/**
+ * This structure describes the format of a raw PCM stream.
+ */
+struct AudioFormat {
+	/**
+	 * The sample rate in Hz.  A better name for this attribute is
+	 * "frame rate", because technically, you have two samples per
+	 * frame in stereo sound.
+	 */
+	uint32_t sample_rate;
+
+	/**
+	 * The format samples are stored in.  See the #sample_format
+	 * enum for valid values.
+	 */
+	SampleFormat format;
+
+	/**
+	 * The number of channels.  Only mono (1) and stereo (2) are
+	 * fully supported currently.
+	 */
+	uint8_t channels;
+
+	AudioFormat() = default;
+
+	constexpr AudioFormat(uint32_t _sample_rate,
+			      SampleFormat _format, uint8_t _channels)
+		:sample_rate(_sample_rate),
+		 format(_format), channels(_channels) {}
+
+	static constexpr AudioFormat Undefined() {
+		return AudioFormat(0, SampleFormat::UNDEFINED,0);
+	}
+
+	/**
+	 * Clears the #audio_format object, i.e. sets all attributes to an
+	 * undefined (invalid) value.
+	 */
+	void Clear() {
+		sample_rate = 0;
+		format = SampleFormat::UNDEFINED;
+		channels = 0;
+	}
+
+	/**
+	 * Checks whether the object has a defined value.
+	 */
+	constexpr bool IsDefined() const {
+		return sample_rate != 0;
+	}
+
+	/**
+	 * Checks whether the object is full, i.e. all attributes are
+	 * defined.  This is more complete than IsDefined(), but
+	 * slower.
+	 */
+	constexpr bool IsFullyDefined() const {
+		return sample_rate != 0 && format != SampleFormat::UNDEFINED &&
+			channels != 0;
+	}
+
+	/**
+	 * Checks whether the object has at least one defined value.
+	 */
+	constexpr bool IsMaskDefined() const {
+		return sample_rate != 0 || format != SampleFormat::UNDEFINED ||
+			channels != 0;
+	}
+
+	bool IsValid() const;
+	bool IsMaskValid() const;
+
+	constexpr bool operator==(const AudioFormat other) const {
+		return sample_rate == other.sample_rate &&
+			format == other.format &&
+			channels == other.channels;
+	}
+
+	constexpr bool operator!=(const AudioFormat other) const {
+		return !(*this == other);
+	}
+
+	void ApplyMask(AudioFormat mask);
+
+	/**
+	 * Returns the size of each (mono) sample in bytes.
+	 */
+	unsigned GetSampleSize() const;
+
+	/**
+	 * Returns the size of each full frame in bytes.
+	 */
+	unsigned GetFrameSize() const;
+
+	/**
+	 * Returns the floating point factor which converts a time
+	 * span to a storage size in bytes.
+	 */
+	double GetTimeToSize() const;
+};
+
+/**
+ * Buffer for audio_format_string().
+ */
+struct audio_format_string {
+	char buffer[24];
+};
+
+/**
+ * Checks whether the sample rate is valid.
+ *
+ * @param sample_rate the sample rate in Hz
+ */
+static constexpr inline bool
+audio_valid_sample_rate(unsigned sample_rate)
+{
+	return sample_rate > 0 && sample_rate < (1 << 30);
+}
+
+/**
+ * Checks whether the sample format is valid.
+ *
+ * @param bits the number of significant bits per sample
+ */
+static inline bool
+audio_valid_sample_format(SampleFormat format)
+{
+	switch (format) {
+	case SampleFormat::S8:
+	case SampleFormat::S16:
+	case SampleFormat::S24_P32:
+	case SampleFormat::S32:
+	case SampleFormat::FLOAT:
+	case SampleFormat::DSD:
+		return true;
+
+	case SampleFormat::UNDEFINED:
+		break;
+	}
+
+	return false;
+}
+
+/**
+ * Checks whether the number of channels is valid.
+ */
+static constexpr inline bool
+audio_valid_channel_count(unsigned channels)
+{
+	return channels >= 1 && channels <= MAX_CHANNELS;
+}
+
+/**
+ * Returns false if the format is not valid for playback with MPD.
+ * This function performs some basic validity checks.
+ */
+inline bool
+AudioFormat::IsValid() const
+{
+	return audio_valid_sample_rate(sample_rate) &&
+		audio_valid_sample_format(format) &&
+		audio_valid_channel_count(channels);
+}
+
+/**
+ * Returns false if the format mask is not valid for playback with
+ * MPD.  This function performs some basic validity checks.
+ */
+inline bool
+AudioFormat::IsMaskValid() const
+{
+	return (sample_rate == 0 ||
+		audio_valid_sample_rate(sample_rate)) &&
+		(format == SampleFormat::UNDEFINED ||
+		 audio_valid_sample_format(format)) &&
+		(channels == 0 || audio_valid_channel_count(channels));
+}
+
+gcc_const
+static inline unsigned
+sample_format_size(SampleFormat format)
+{
+	switch (format) {
+	case SampleFormat::S8:
+		return 1;
+
+	case SampleFormat::S16:
+		return 2;
+
+	case SampleFormat::S24_P32:
+	case SampleFormat::S32:
+	case SampleFormat::FLOAT:
+		return 4;
+
+	case SampleFormat::DSD:
+		/* each frame has 8 samples per channel */
+		return 1;
+
+	case SampleFormat::UNDEFINED:
+		return 0;
+	}
+
+	assert(false);
+	gcc_unreachable();
+}
+
+inline unsigned
+AudioFormat::GetSampleSize() const
+{
+	return sample_format_size(format);
+}
+
+inline unsigned
+AudioFormat::GetFrameSize() const
+{
+	return GetSampleSize() * channels;
+}
+
+inline double
+AudioFormat::GetTimeToSize() const
+{
+	return sample_rate * GetFrameSize();
+}
+
+/**
+ * Renders a #sample_format enum into a string, e.g. for printing it
+ * in a log file.
+ *
+ * @param format a #sample_format enum value
+ * @return the string
+ */
+gcc_pure gcc_malloc
+const char *
+sample_format_to_string(SampleFormat format);
+
+/**
+ * Renders the #audio_format object into a string, e.g. for printing
+ * it in a log file.
+ *
+ * @param af the #audio_format object
+ * @param s a buffer to print into
+ * @return the string, or nullptr if the #audio_format object is invalid
+ */
+gcc_pure gcc_malloc
+const char *
+audio_format_to_string(AudioFormat af,
+		       struct audio_format_string *s);
+
+#endif
--- a/src/AudioParser.cxx
+++ b/src/AudioParser.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -23,27 +23,19 @@
 */

 #include "config.h"
-#include "audio_parser.h"
-#include "audio_format.h"
-#include "audio_check.h"
-#include "gcc.h"
+#include "AudioParser.hxx"
+#include "AudioFormat.hxx"
+#include "CheckAudioFormat.hxx"
+#include "util/Error.hxx"
+#include "Compiler.h"

 #include <assert.h>
 #include <string.h>
 #include <stdlib.h>

-/**
- * The GLib quark used for errors reported by this library.
- */
-static inline GQuark
-audio_parser_quark(void)
-{
-	return g_quark_from_static_string("audio_parser");
-}
-
 static bool
 parse_sample_rate(const char *src, bool mask, uint32_t *sample_rate_r,
-		  const char **endptr_r, GError **error_r)
+		  const char **endptr_r, Error &error)
 {
 	unsigned long value;
 	char *endptr;
@@ -56,10 +48,10 @@ parse_sample_rate(const char *src, bool mask, uint32_t *sample_rate_r,

 	value = strtoul(src, &endptr, 10);
 	if (endptr == src) {
-		g_set_error(error_r, audio_parser_quark(), 0,
-			    "Failed to parse the sample rate");
+		error.Set(audio_format_domain,
+			  "Failed to parse the sample rate");
 		return false;
-	} else if (!audio_check_sample_rate(value, error_r))
+	} else if (!audio_check_sample_rate(value, error))
 		return false;

 	*sample_rate_r = value;
@@ -69,45 +61,45 @@ parse_sample_rate(const char *src, bool mask, uint32_t *sample_rate_r,

 static bool
 parse_sample_format(const char *src, bool mask,
-		    enum sample_format *sample_format_r,
-		    const char **endptr_r, GError **error_r)
+		    SampleFormat *sample_format_r,
+		    const char **endptr_r, Error &error)
 {
 	unsigned long value;
 	char *endptr;
-	enum sample_format sample_format;
+	SampleFormat sample_format;

 	if (mask && *src == '*') {
-		*sample_format_r = SAMPLE_FORMAT_UNDEFINED;
+		*sample_format_r = SampleFormat::UNDEFINED;
 		*endptr_r = src + 1;
 		return true;
 	}

 	if (*src == 'f') {
-		*sample_format_r = SAMPLE_FORMAT_FLOAT;
+		*sample_format_r = SampleFormat::FLOAT;
 		*endptr_r = src + 1;
 		return true;
 	}

 	if (memcmp(src, "dsd", 3) == 0) {
-		*sample_format_r = SAMPLE_FORMAT_DSD;
+		*sample_format_r = SampleFormat::DSD;
 		*endptr_r = src + 3;
 		return true;
 	}

 	value = strtoul(src, &endptr, 10);
 	if (endptr == src) {
-		g_set_error(error_r, audio_parser_quark(), 0,
-			    "Failed to parse the sample format");
+		error.Set(audio_format_domain,
+			  "Failed to parse the sample format");
 		return false;
 	}

 	switch (value) {
 	case 8:
-		sample_format = SAMPLE_FORMAT_S8;
+		sample_format = SampleFormat::S8;
 		break;

 	case 16:
-		sample_format = SAMPLE_FORMAT_S16;
+		sample_format = SampleFormat::S16;
 		break;

 	case 24:
@@ -115,16 +107,16 @@ parse_sample_format(const char *src, bool mask,
 			/* for backwards compatibility */
 			endptr += 2;

-		sample_format = SAMPLE_FORMAT_S24_P32;
+		sample_format = SampleFormat::S24_P32;
 		break;

 	case 32:
-		sample_format = SAMPLE_FORMAT_S32;
+		sample_format = SampleFormat::S32;
 		break;

 	default:
-		g_set_error(error_r, audio_parser_quark(), 0,
-			    "Invalid sample format: %lu", value);
+		error.Format(audio_format_domain,
+			     "Invalid sample format: %lu", value);
 		return false;
 	}

@@ -137,7 +129,7 @@ parse_sample_format(const char *src, bool mask,

 static bool
 parse_channel_count(const char *src, bool mask, uint8_t *channels_r,
-		    const char **endptr_r, GError **error_r)
+		    const char **endptr_r, Error &error)
 {
 	unsigned long value;
 	char *endptr;
@@ -150,10 +142,10 @@ parse_channel_count(const char *src, bool mask, uint8_t *channels_r,

 	value = strtoul(src, &endptr, 10);
 	if (endptr == src) {
-		g_set_error(error_r, audio_parser_quark(), 0,
-			    "Failed to parse the channel count");
+		error.Set(audio_format_domain,
+			  "Failed to parse the channel count");
 		return false;
-	} else if (!audio_check_channel_count(value, error_r))
+	} else if (!audio_check_channel_count(value, error))
 		return false;

 	*channels_r = value;
@@ -162,14 +154,14 @@ parse_channel_count(const char *src, bool mask, uint8_t *channels_r,
 }

 bool
-audio_format_parse(struct audio_format *dest, const char *src,
-		   bool mask, GError **error_r)
+audio_format_parse(AudioFormat &dest, const char *src,
+		   bool mask, Error &error)
 {
 	uint32_t rate;
-	enum sample_format sample_format;
+	SampleFormat sample_format;
 	uint8_t channels;

-	audio_format_clear(dest);
+	dest.Clear();

 	/* parse sample rate */

@@ -178,12 +170,11 @@ audio_format_parse(struct audio_format *dest, const char *src,
 	rate = 0;
 #endif

-	if (!parse_sample_rate(src, mask, &rate, &src, error_r))
+	if (!parse_sample_rate(src, mask, &rate, &src, error))
 		return false;

 	if (*src++ != ':') {
-		g_set_error(error_r, audio_parser_quark(), 0,
-			    "Sample format missing");
+		error.Set(audio_format_domain, "Sample format missing");
 		return false;
 	}

@@ -191,32 +182,32 @@ audio_format_parse(struct audio_format *dest, const char *src,

 #if GCC_CHECK_VERSION(4,7)
 	/* workaround -Wmaybe-uninitialized false positive */
-	sample_format = SAMPLE_FORMAT_UNDEFINED;
+	sample_format = SampleFormat::UNDEFINED;
 #endif

-	if (!parse_sample_format(src, mask, &sample_format, &src, error_r))
+	if (!parse_sample_format(src, mask, &sample_format, &src, error))
 		return false;

 	if (*src++ != ':') {
-		g_set_error(error_r, audio_parser_quark(), 0,
-			    "Channel count missing");
+		error.Set(audio_format_domain, "Channel count missing");
 		return false;
 	}

 	/* parse channel count */

-	if (!parse_channel_count(src, mask, &channels, &src, error_r))
+	if (!parse_channel_count(src, mask, &channels, &src, error))
 		return false;

 	if (*src != 0) {
-		g_set_error(error_r, audio_parser_quark(), 0,
+		error.Format(audio_format_domain,
 			    "Extra data after channel count: %s", src);
 		return false;
 	}

-	audio_format_init(dest, rate, sample_format, channels);
-	assert(mask ? audio_format_mask_valid(dest)
-	       : audio_format_valid(dest));
+	dest = AudioFormat(rate, sample_format, channels);
+	assert(mask
+	       ? dest.IsMaskValid()
+	       : dest.IsValid());

 	return true;
 }
--- a/src/AudioParser.hxx
+++ b/src/AudioParser.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -22,14 +22,11 @@
 * Parser functions for audio related objects.
 */

-#ifndef AUDIO_PARSER_H
-#define AUDIO_PARSER_H
+#ifndef MPD_AUDIO_PARSER_HXX
+#define MPD_AUDIO_PARSER_HXX

-#include <glib.h>
-
-#include <stdbool.h>
-
-struct audio_format;
+struct AudioFormat;
+class Error;

 /**
 * Parses a string in the form "SAMPLE_RATE:BITS:CHANNELS" into an
@@ -43,7 +40,7 @@ struct audio_format;
 * @return true on success
 */
 bool
-audio_format_parse(struct audio_format *dest, const char *src,
-		   bool mask, GError **error_r);
+audio_format_parse(AudioFormat &dest, const char *src,
+		   bool mask, Error &error);

 #endif
--- a/src/AvahiPoll.cxx
+++ b/src/AvahiPoll.cxx
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "AvahiPoll.hxx"
+#include "event/Loop.hxx"
+#include "event/SocketMonitor.hxx"
+#include "event/TimeoutMonitor.hxx"
+
+static unsigned
+FromAvahiWatchEvent(AvahiWatchEvent e)
+{
+	return (e & AVAHI_WATCH_IN ? SocketMonitor::READ : 0) |
+		(e & AVAHI_WATCH_OUT ? SocketMonitor::WRITE : 0) |
+		(e & AVAHI_WATCH_ERR ? SocketMonitor::ERROR : 0) |
+		(e & AVAHI_WATCH_HUP ? SocketMonitor::HANGUP : 0);
+}
+
+static AvahiWatchEvent
+ToAvahiWatchEvent(unsigned e)
+{
+	return AvahiWatchEvent((e & SocketMonitor::READ ? AVAHI_WATCH_IN : 0) |
+			       (e & SocketMonitor::WRITE ? AVAHI_WATCH_OUT : 0) |
+			       (e & SocketMonitor::ERROR ? AVAHI_WATCH_ERR : 0) |
+			       (e & SocketMonitor::HANGUP ? AVAHI_WATCH_HUP : 0));
+}
+
+struct AvahiWatch final : private SocketMonitor {
+private:
+	const AvahiWatchCallback callback;
+	void *const userdata;
+
+	AvahiWatchEvent received;
+
+public:
+	AvahiWatch(int _fd, AvahiWatchEvent _event,
+		   AvahiWatchCallback _callback, void *_userdata,
+		   EventLoop &_loop)
+		:SocketMonitor(_fd, _loop),
+		 callback(_callback), userdata(_userdata),
+		 received(AvahiWatchEvent(0)) {
+		Schedule(FromAvahiWatchEvent(_event));
+	}
+
+	~AvahiWatch() {
+		Steal();
+	}
+
+	static void WatchUpdate(AvahiWatch *w, AvahiWatchEvent event) {
+		w->Schedule(FromAvahiWatchEvent(event));
+	}
+
+	static AvahiWatchEvent WatchGetEvents(AvahiWatch *w) {
+		return w->received;
+	}
+
+	static void WatchFree(AvahiWatch *w) {
+		delete w;
+	}
+
+protected:
+	virtual bool OnSocketReady(unsigned flags) {
+		received = ToAvahiWatchEvent(flags);
+		callback(this, Get(), received, userdata);
+		received = AvahiWatchEvent(0);
+		return true;
+	}
+};
+
+static constexpr unsigned
+TimevalToMS(const timeval &tv)
+{
+	return tv.tv_sec * 1000 + (tv.tv_usec + 500) / 1000;
+}
+
+struct AvahiTimeout final : private TimeoutMonitor {
+private:
+	const AvahiTimeoutCallback callback;
+	void *const userdata;
+
+public:
+	AvahiTimeout(const struct timeval *tv,
+		     AvahiTimeoutCallback _callback, void *_userdata,
+		     EventLoop &_loop)
+		:TimeoutMonitor(_loop),
+		 callback(_callback), userdata(_userdata) {
+		if (tv != nullptr)
+			Schedule(TimevalToMS(*tv));
+	}
+
+	static void TimeoutUpdate(AvahiTimeout *t, const struct timeval *tv) {
+		if (tv != nullptr)
+			t->Schedule(TimevalToMS(*tv));
+		else
+			t->Cancel();
+	}
+
+	static void TimeoutFree(AvahiTimeout *t) {
+		delete t;
+	}
+
+protected:
+	virtual void OnTimeout() {
+		callback(this, userdata);
+	}
+};
+
+MyAvahiPoll::MyAvahiPoll(EventLoop &_loop):event_loop(_loop)
+{
+	watch_new = WatchNew;
+	watch_update = AvahiWatch::WatchUpdate;
+	watch_get_events = AvahiWatch::WatchGetEvents;
+	watch_free = AvahiWatch::WatchFree;
+	timeout_new = TimeoutNew;
+	timeout_update = AvahiTimeout::TimeoutUpdate;
+	timeout_free = AvahiTimeout::TimeoutFree;
+}
+
+AvahiWatch *
+MyAvahiPoll::WatchNew(const AvahiPoll *api, int fd, AvahiWatchEvent event,
+		      AvahiWatchCallback callback, void *userdata) {
+	const MyAvahiPoll &poll = *(const MyAvahiPoll *)api;
+
+	return new AvahiWatch(fd, event, callback, userdata,
+			      poll.event_loop);
+}
+
+AvahiTimeout *
+MyAvahiPoll::TimeoutNew(const AvahiPoll *api, const struct timeval *tv,
+			AvahiTimeoutCallback callback, void *userdata) {
+	const MyAvahiPoll &poll = *(const MyAvahiPoll *)api;
+
+	return new AvahiTimeout(tv, callback, userdata,
+				poll.event_loop);
+}
--- a/src/AvahiPoll.hxx
+++ b/src/AvahiPoll.hxx
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_AVAHI_POLL_HXX
+#define MPD_AVAHI_POLL_HXX
+
+#include "check.h"
+#include "Compiler.h"
+
+#include <avahi-common/watch.h>
+
+class EventLoop;
+
+class MyAvahiPoll final : public AvahiPoll {
+	EventLoop &event_loop;
+
+public:
+	MyAvahiPoll(EventLoop &_loop);
+
+private:
+	static AvahiWatch *WatchNew(const AvahiPoll *api, int fd,
+				    AvahiWatchEvent event,
+				    AvahiWatchCallback callback,
+				    void *userdata);
+
+	static AvahiTimeout *TimeoutNew(const AvahiPoll *api,
+					const struct timeval *tv,
+					AvahiTimeoutCallback callback,
+					void *userdata);
+};
+
+#endif
--- a/src/CheckAudioFormat.cxx
+++ b/src/CheckAudioFormat.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,17 +17,22 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#include "audio_check.h"
-#include "audio_format.h"
+#include "config.h"
+#include "CheckAudioFormat.hxx"
+#include "AudioFormat.hxx"
+#include "util/Error.hxx"
+#include "util/Domain.hxx"

 #include <assert.h>

+const Domain audio_format_domain("audio_format");
+
 bool
-audio_check_sample_rate(unsigned long sample_rate, GError **error_r)
+audio_check_sample_rate(unsigned long sample_rate, Error &error)
 {
 	if (!audio_valid_sample_rate(sample_rate)) {
-		g_set_error(error_r, audio_format_quark(), 0,
-			    "Invalid sample rate: %lu", sample_rate);
+		error.Format(audio_format_domain,
+			     "Invalid sample rate: %lu", sample_rate);
 		return false;
 	}

@@ -35,11 +40,12 @@ audio_check_sample_rate(unsigned long sample_rate, GError **error_r)
 }

 bool
-audio_check_sample_format(enum sample_format sample_format, GError **error_r)
+audio_check_sample_format(SampleFormat sample_format, Error &error)
 {
 	if (!audio_valid_sample_format(sample_format)) {
-		g_set_error(error_r, audio_format_quark(), 0,
-			    "Invalid sample format: %u", sample_format);
+		error.Format(audio_format_domain,
+			     "Invalid sample format: %u",
+			     unsigned(sample_format));
 		return false;
 	}

@@ -47,11 +53,11 @@ audio_check_sample_format(enum sample_format sample_format, GError **error_r)
 }

 bool
-audio_check_channel_count(unsigned channels, GError **error_r)
+audio_check_channel_count(unsigned channels, Error &error)
 {
 	if (!audio_valid_channel_count(channels)) {
-		g_set_error(error_r, audio_format_quark(), 0,
-			    "Invalid channel count: %u", channels);
+		error.Format(audio_format_domain,
+			     "Invalid channel count: %u", channels);
 		return false;
 	}

@@ -59,15 +65,15 @@ audio_check_channel_count(unsigned channels, GError **error_r)
 }

 bool
-audio_format_init_checked(struct audio_format *af, unsigned long sample_rate,
-			  enum sample_format sample_format, unsigned channels,
-			  GError **error_r)
+audio_format_init_checked(AudioFormat &af, unsigned long sample_rate,
+			  SampleFormat sample_format, unsigned channels,
+			  Error &error)
 {
-	if (audio_check_sample_rate(sample_rate, error_r) &&
-	    audio_check_sample_format(sample_format, error_r) &&
-	    audio_check_channel_count(channels, error_r)) {
-		audio_format_init(af, sample_rate, sample_format, channels);
-		assert(audio_format_valid(af));
+	if (audio_check_sample_rate(sample_rate, error) &&
+	    audio_check_sample_format(sample_format, error) &&
+	    audio_check_channel_count(channels, error)) {
+		af = AudioFormat(sample_rate, sample_format, channels);
+		assert(af.IsValid());
 		return true;
 	} else
 		return false;
--- a/src/CheckAudioFormat.hxx
+++ b/src/CheckAudioFormat.hxx
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CHECK_AUDIO_FORMAT_HXX
+#define MPD_CHECK_AUDIO_FORMAT_HXX
+
+#include "AudioFormat.hxx"
+
+class Error;
+
+extern const class Domain audio_format_domain;
+
+bool
+audio_check_sample_rate(unsigned long sample_rate, Error &error);
+
+bool
+audio_check_sample_format(SampleFormat sample_format, Error &error);
+
+bool
+audio_check_channel_count(unsigned sample_format, Error &error);
+
+/**
+ * Wrapper for audio_format_init(), which checks all attributes.
+ */
+bool
+audio_format_init_checked(AudioFormat &af, unsigned long sample_rate,
+			  SampleFormat sample_format, unsigned channels,
+			  Error &error);
+
+#endif
--- a/src/Client.cxx
+++ b/src/Client.cxx
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "util/Domain.hxx"
+
+const Domain client_domain("client");
--- a/src/Client.hxx
+++ b/src/Client.hxx
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CLIENT_H
+#define MPD_CLIENT_H
+
+#include "check.h"
+#include "ClientMessage.hxx"
+#include "command/CommandListBuilder.hxx"
+#include "event/FullyBufferedSocket.hxx"
+#include "event/TimeoutMonitor.hxx"
+#include "Compiler.h"
+
+#include <set>
+#include <string>
+#include <list>
+
+#include <stddef.h>
+#include <stdarg.h>
+
+struct sockaddr;
+class EventLoop;
+struct Partition;
+
+class Client final : private FullyBufferedSocket, TimeoutMonitor {
+public:
+	Partition &partition;
+	struct playlist &playlist;
+	struct PlayerControl &player_control;
+
+	unsigned permission;
+
+	/** the uid of the client process, or -1 if unknown */
+	int uid;
+
+	CommandListBuilder cmd_list;
+
+	unsigned int num;	/* client number */
+
+	/** is this client waiting for an "idle" response? */
+	bool idle_waiting;
+
+	/** idle flags pending on this client, to be sent as soon as
+	    the client enters "idle" */
+	unsigned idle_flags;
+
+	/** idle flags that the client wants to receive */
+	unsigned idle_subscriptions;
+
+	/**
+	 * A list of channel names this client is subscribed to.
+	 */
+	std::set<std::string> subscriptions;
+
+	/**
+	 * The number of subscriptions in #subscriptions.  Used to
+	 * limit the number of subscriptions.
+	 */
+	unsigned num_subscriptions;
+
+	/**
+	 * A list of messages this client has received.
+	 */
+	std::list<ClientMessage> messages;
+
+	Client(EventLoop &loop, Partition &partition,
+	       int fd, int uid, int num);
+
+	bool IsConnected() const {
+		return FullyBufferedSocket::IsDefined();
+	}
+
+	gcc_pure
+	bool IsExpired() const {
+		return !FullyBufferedSocket::IsDefined();
+	}
+
+	void Close();
+	void SetExpired();
+
+	using FullyBufferedSocket::Write;
+
+	/**
+	 * returns the uid of the client process, or a negative value
+	 * if the uid is unknown
+	 */
+	int GetUID() const {
+		return uid;
+	}
+
+	/**
+	 * Is this client running on the same machine, connected with
+	 * a local (UNIX domain) socket?
+	 */
+	bool IsLocal() const {
+		return uid > 0;
+	}
+
+	unsigned GetPermission() const {
+		return permission;
+	}
+
+	void SetPermission(unsigned _permission) {
+		permission = _permission;
+	}
+
+	/**
+	 * Send "idle" response to this client.
+	 */
+	void IdleNotify();
+	void IdleAdd(unsigned flags);
+	bool IdleWait(unsigned flags);
+
+	enum class SubscribeResult {
+		/** success */
+		OK,
+
+		/** invalid channel name */
+		INVALID,
+
+		/** already subscribed to this channel */
+		ALREADY,
+
+		/** too many subscriptions */
+		FULL,
+	};
+
+	gcc_pure
+	bool IsSubscribed(const char *channel_name) const {
+		return subscriptions.find(channel_name) != subscriptions.end();
+	}
+
+	SubscribeResult Subscribe(const char *channel);
+	bool Unsubscribe(const char *channel);
+	void UnsubscribeAll();
+	bool PushMessage(const ClientMessage &msg);
+
+private:
+	/* virtual methods from class BufferedSocket */
+	virtual InputResult OnSocketInput(void *data, size_t length) override;
+	virtual void OnSocketError(Error &&error) override;
+	virtual void OnSocketClosed() override;
+
+	/* virtual methods from class TimeoutMonitor */
+	virtual void OnTimeout() override;
+};
+
+void client_manager_init(void);
+
+void
+client_new(EventLoop &loop, Partition &partition,
+	   int fd, const struct sockaddr *sa, size_t sa_length, int uid);
+
+/**
+ * Write a C string to the client.
+ */
+void client_puts(Client &client, const char *s);
+
+/**
+ * Write a printf-like formatted string to the client.
+ */
+void client_vprintf(Client &client, const char *fmt, va_list args);
+
+/**
+ * Write a printf-like formatted string to the client.
+ */
+gcc_printf(2,3)
+void
+client_printf(Client &client, const char *fmt, ...);
+
+#endif
--- a/src/ClientEvent.cxx
+++ b/src/ClientEvent.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,16 +18,20 @@
 */

 #include "config.h"
-#include "mixer_api.h"
-
-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "mixer"
+#include "ClientInternal.hxx"
+#include "util/Error.hxx"
+#include "Log.hxx"

 void
-mixer_init(struct mixer *mixer, const struct mixer_plugin *plugin)
+Client::OnSocketError(Error &&error)
 {
-	mixer->plugin = plugin;
-	mixer->mutex = g_mutex_new();
-	mixer->open = false;
-	mixer->failed = false;
+	FormatError(error, "error on client %d", num);
+
+	SetExpired();
+}
+
+void
+Client::OnSocketClosed()
+{
+	SetExpired();
 }
--- a/src/ClientExpire.cxx
+++ b/src/ClientExpire.cxx
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "Log.hxx"
+
+void
+Client::SetExpired()
+{
+	if (IsExpired())
+		return;
+
+	FullyBufferedSocket::Close();
+	TimeoutMonitor::Schedule(0);
+}
+
+void
+Client::OnTimeout()
+{
+	if (!IsExpired()) {
+		assert(!idle_waiting);
+		FormatDebug(client_domain, "[%u] timeout", num);
+	}
+
+	Close();
+}
--- a/src/ClientFile.cxx
+++ b/src/ClientFile.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,9 +17,14 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#include "client_file.h"
-#include "client.h"
-#include "ack.h"
+#include "config.h"
+#include "ClientFile.hxx"
+#include "Client.hxx"
+#include "protocol/Ack.hxx"
+#include "fs/Path.hxx"
+#include "fs/FileSystem.hxx"
+#include "util/Error.hxx"
+#include "util/Domain.hxx"

 #include <sys/stat.h>
 #include <sys/types.h>
@@ -27,18 +32,16 @@
 #include <unistd.h>

 bool
-client_allow_file(const struct client *client, const char *path_fs,
-		  GError **error_r)
+client_allow_file(const Client &client, Path path_fs, Error &error)
 {
 #ifdef WIN32
 	(void)client;
 	(void)path_fs;

-	g_set_error(error_r, ack_quark(), ACK_ERROR_PERMISSION,
-		    "Access denied");
+	error.Set(ack_domain, ACK_ERROR_PERMISSION, "Access denied");
 	return false;
 #else
-	const int uid = client_get_uid(client);
+	const int uid = client.GetUID();
 	if (uid >= 0 && (uid_t)uid == geteuid())
 		/* always allow access if user runs his own MPD
 		   instance */
@@ -46,22 +49,19 @@ client_allow_file(const struct client *client, const char *path_fs,

 	if (uid <= 0) {
 		/* unauthenticated client */
-		g_set_error(error_r, ack_quark(), ACK_ERROR_PERMISSION,
-			    "Access denied");
+		error.Set(ack_domain, ACK_ERROR_PERMISSION, "Access denied");
 		return false;
 	}

 	struct stat st;
-	if (stat(path_fs, &st) < 0) {
-		g_set_error(error_r, g_file_error_quark(), errno,
-			    "%s", g_strerror(errno));
+	if (!StatFile(path_fs, st)) {
+		error.SetErrno();
 		return false;
 	}

 	if (st.st_uid != (uid_t)uid && (st.st_mode & 0444) != 0444) {
 		/* client is not owner */
-		g_set_error(error_r, ack_quark(), ACK_ERROR_PERMISSION,
-			    "Access denied");
+		error.Set(ack_domain, ACK_ERROR_PERMISSION, "Access denied");
 		return false;
 	}

--- a/src/ClientFile.hxx
+++ b/src/ClientFile.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,13 +17,12 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef MPD_CLIENT_FILE_H
-#define MPD_CLIENT_FILE_H
+#ifndef MPD_CLIENT_FILE_HXX
+#define MPD_CLIENT_FILE_HXX

-#include <glib.h>
-#include <stdbool.h>
-
-struct client;
+class Client;
+class Path;
+class Error;

 /**
 * Is this client allowed to use the specified local file?
@@ -36,7 +35,6 @@ struct client;
 * @return true if access is allowed
 */
 bool
-client_allow_file(const struct client *client, const char *path_fs,
-		  GError **error_r);
+client_allow_file(const Client &client, Path path_fs, Error &error);

 #endif
--- a/src/ClientGlobal.cxx
+++ b/src/ClientGlobal.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,18 +18,14 @@
 */

 #include "config.h"
-#include "client_internal.h"
-#include "conf.h"
-
-#include <assert.h>
+#include "ClientInternal.hxx"
+#include "ClientList.hxx"
+#include "ConfigGlobal.hxx"

 #define CLIENT_TIMEOUT_DEFAULT			(60)
-#define CLIENT_MAX_CONNECTIONS_DEFAULT		(10)
 #define CLIENT_MAX_COMMAND_LIST_DEFAULT		(2048*1024)
 #define CLIENT_MAX_OUTPUT_BUFFER_SIZE_DEFAULT	(8192*1024)

-/* set this to zero to indicate we have no possible clients */
-unsigned int client_max_connections;
 int client_timeout;
 size_t client_max_command_list_size;
 size_t client_max_output_buffer_size;
@@ -38,9 +34,6 @@ void client_manager_init(void)
 {
 	client_timeout = config_get_positive(CONF_CONN_TIMEOUT,
 					     CLIENT_TIMEOUT_DEFAULT);
-	client_max_connections =
-		config_get_positive(CONF_MAX_CONN,
-				    CLIENT_MAX_CONNECTIONS_DEFAULT);
 	client_max_command_list_size =
 		config_get_positive(CONF_MAX_COMMAND_LIST_SIZE,
 				    CLIENT_MAX_COMMAND_LIST_DEFAULT / 1024)
@@ -51,23 +44,3 @@ void client_manager_init(void)
 				    CLIENT_MAX_OUTPUT_BUFFER_SIZE_DEFAULT / 1024)
 		* 1024;
 }
-
-static void client_close_all(void)
-{
-	while (!client_list_is_empty()) {
-		struct client *client = client_list_get_first();
-
-		client_close(client);
-	}
-
-	assert(client_list_is_empty());
-}
-
-void client_manager_deinit(void)
-{
-	client_close_all();
-
-	client_max_connections = 0;
-
-	client_deinit_expire();
-}
--- a/src/ClientIdle.cxx
+++ b/src/ClientIdle.cxx
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "Idle.hxx"
+
+#include <assert.h>
+
+void
+Client::IdleNotify()
+{
+	assert(idle_waiting);
+	assert(idle_flags != 0);
+
+	unsigned flags = idle_flags;
+	idle_flags = 0;
+	idle_waiting = false;
+
+	const char *const*idle_names = idle_get_names();
+	for (unsigned i = 0; idle_names[i]; ++i) {
+		if (flags & (1 << i) & idle_subscriptions)
+			client_printf(*this, "changed: %s\n",
+				      idle_names[i]);
+	}
+
+	client_puts(*this, "OK\n");
+
+	TimeoutMonitor::ScheduleSeconds(client_timeout);
+}
+
+void
+Client::IdleAdd(unsigned flags)
+{
+	if (IsExpired())
+		return;
+
+	idle_flags |= flags;
+	if (idle_waiting && (idle_flags & idle_subscriptions))
+		IdleNotify();
+}
+
+bool
+Client::IdleWait(unsigned flags)
+{
+	assert(!idle_waiting);
+
+	idle_waiting = true;
+	idle_subscriptions = flags;
+
+	if (idle_flags & idle_subscriptions) {
+		IdleNotify();
+		return true;
+	} else {
+		/* disable timeouts while in "idle" */
+		TimeoutMonitor::Cancel();
+		return false;
+	}
+}
--- a/src/ClientInternal.hxx
+++ b/src/ClientInternal.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,27 +17,23 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef MPD_INPUT_INTERNAL_H
-#define MPD_INPUT_INTERNAL_H
+#ifndef MPD_CLIENT_INTERNAL_HXX
+#define MPD_CLIENT_INTERNAL_HXX

 #include "check.h"
+#include "Client.hxx"
+#include "command/CommandResult.hxx"

-#include <glib.h>
+static constexpr unsigned CLIENT_MAX_SUBSCRIPTIONS = 16;
+static constexpr unsigned CLIENT_MAX_MESSAGES = 64;

-struct input_stream;
-struct input_plugin;
+extern const class Domain client_domain;

-void
-input_stream_init(struct input_stream *is, const struct input_plugin *plugin,
-		  const char *uri, GMutex *mutex, GCond *cond);
+extern int client_timeout;
+extern size_t client_max_command_list_size;
+extern size_t client_max_output_buffer_size;

-void
-input_stream_deinit(struct input_stream *is);
-
-void
-input_stream_signal_client(struct input_stream *is);
-
-void
-input_stream_set_ready(struct input_stream *is);
+CommandResult
+client_process_line(Client &client, char *line);

 #endif
--- a/src/ClientList.cxx
+++ b/src/ClientList.cxx
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientList.hxx"
+#include "ClientInternal.hxx"
+
+#include <algorithm>
+
+#include <assert.h>
+
+void
+ClientList::Remove(Client &client)
+{
+	assert(size > 0);
+	assert(!list.empty());
+
+	auto i = std::find(list.begin(), list.end(), &client);
+	assert(i != list.end());
+	list.erase(i);
+	--size;
+}
+
+void
+ClientList::CloseAll()
+{
+	while (!list.empty())
+		list.front()->Close();
+
+	assert(size == 0);
+}
+
+void
+ClientList::IdleAdd(unsigned flags)
+{
+	assert(flags != 0);
+
+	for (const auto &client : list)
+		client->IdleAdd(flags);
+}
--- a/src/ClientList.hxx
+++ b/src/ClientList.hxx
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CLIENT_LIST_HXX
+#define MPD_CLIENT_LIST_HXX
+
+#include <list>
+
+class Client;
+
+class ClientList {
+	const unsigned max_size;
+
+	unsigned size;
+	std::list<Client *> list;
+
+public:
+	ClientList(unsigned _max_size)
+		:max_size(_max_size), size(0) {}
+	~ClientList() {
+		CloseAll();
+	}
+
+	std::list<Client *>::iterator begin() {
+		return list.begin();
+	}
+
+	std::list<Client *>::iterator end() {
+		return list.end();
+	}
+
+	bool IsFull() const {
+		return size >= max_size;
+	}
+
+	void Add(Client &client) {
+		list.push_front(&client);
+		++size;
+	}
+
+	void Remove(Client &client);
+
+	void CloseAll();
+
+	void IdleAdd(unsigned flags);
+};
+
+#endif
--- a/src/db/simple_db_plugin.h
+++ b/src/db/simple_db_plugin.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,26 +17,25 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef MPD_SIMPLE_DB_PLUGIN_H
-#define MPD_SIMPLE_DB_PLUGIN_H
+#include "ClientMessage.hxx"
+#include "util/CharUtil.hxx"
+#include "Compiler.h"

-#include <glib.h>
-#include <stdbool.h>
-#include <time.h>
-
-extern const struct db_plugin simple_db_plugin;
-
-struct db;
-
-G_GNUC_PURE
-struct directory *
-simple_db_get_root(struct db *db);
+gcc_const
+static bool
+valid_channel_char(const char ch)
+{
+	return IsAlphaNumericASCII(ch) ||
+		ch == '_' || ch == '-' || ch == '.' || ch == ':';
+}

 bool
-simple_db_save(struct db *db, GError **error_r);
+client_message_valid_channel_name(const char *name)
+{
+	do {
+		if (!valid_channel_char(*name))
+			return false;
+	} while (*++name != 0);

-G_GNUC_PURE
-time_t
-simple_db_get_mtime(const struct db *db);
-
-#endif
+	return true;
+}
--- a/src/ClientMessage.hxx
+++ b/src/ClientMessage.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,35 +17,36 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-/*
- * The .mpdignore backend code.
- *
- */
+#ifndef MPD_CLIENT_MESSAGE_H
+#define MPD_CLIENT_MESSAGE_H

-#ifndef MPD_EXCLUDE_H
-#define MPD_EXCLUDE_H
+#include "Compiler.h"

-#include <glib.h>
-
-#include <stdbool.h>
+#include <string>

 /**
- * Loads and parses a .mpdignore file.
+ * A client-to-client message.
 */
-GSList *
-exclude_list_load(const char *path_fs);
+class ClientMessage {
+	std::string channel, message;

-/**
- * Frees a list returned by exclude_list_load().
- */
-void
-exclude_list_free(GSList *list);
+public:
+	template<typename T, typename U>
+	ClientMessage(T &&_channel, U &&_message)
+		:channel(std::forward<T>(_channel)),
+		 message(std::forward<U>(_message)) {}

-/**
- * Checks whether one of the patterns in the .mpdignore file matches
- * the specified file name.
- */
+	const char *GetChannel() const {
+		return channel.c_str();
+	}
+
+	const char *GetMessage() const {
+		return message.c_str();
+	}
+};
+
+gcc_pure
 bool
-exclude_list_check(GSList *list, const char *name_fs);
+client_message_valid_channel_name(const char *name);

 #endif
--- a/src/ClientNew.cxx
+++ b/src/ClientNew.cxx
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "ClientList.hxx"
+#include "Partition.hxx"
+#include "Instance.hxx"
+#include "system/fd_util.h"
+#include "system/Resolver.hxx"
+#include "Permission.hxx"
+#include "util/Error.hxx"
+#include "Log.hxx"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <sys/types.h>
+#ifdef WIN32
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#endif
+#include <unistd.h>
+
+#ifdef HAVE_LIBWRAP
+#include <tcpd.h>
+#endif
+
+static const char GREETING[] = "OK MPD " PROTOCOL_VERSION "\n";
+
+Client::Client(EventLoop &_loop, Partition &_partition,
+	       int _fd, int _uid, int _num)
+	:FullyBufferedSocket(_fd, _loop, 16384, client_max_output_buffer_size),
+	 TimeoutMonitor(_loop),
+	 partition(_partition),
+	 playlist(partition.playlist), player_control(partition.pc),
+	 permission(getDefaultPermissions()),
+	 uid(_uid),
+	 num(_num),
+	 idle_waiting(false), idle_flags(0),
+	 num_subscriptions(0)
+{
+	TimeoutMonitor::ScheduleSeconds(client_timeout);
+}
+
+void
+client_new(EventLoop &loop, Partition &partition,
+	   int fd, const struct sockaddr *sa, size_t sa_length, int uid)
+{
+	static unsigned int next_client_num;
+	char *remote;
+
+	assert(fd >= 0);
+
+#ifdef HAVE_LIBWRAP
+	if (sa->sa_family != AF_UNIX) {
+		char *hostaddr = sockaddr_to_string(sa, sa_length,
+						    IgnoreError());
+		const char *progname = g_get_prgname();
+
+		struct request_info req;
+		request_init(&req, RQ_FILE, fd, RQ_DAEMON, progname, 0);
+
+		fromhost(&req);
+
+		if (!hosts_access(&req)) {
+			/* tcp wrappers says no */
+			FormatWarning(client_domain,
+				      "libwrap refused connection (libwrap=%s) from %s",
+				      progname, hostaddr);
+
+			g_free(hostaddr);
+			close_socket(fd);
+			return;
+		}
+
+		g_free(hostaddr);
+	}
+#endif	/* HAVE_WRAP */
+
+	ClientList &client_list = *partition.instance.client_list;
+	if (client_list.IsFull()) {
+		LogWarning(client_domain, "Max connections reached");
+		close_socket(fd);
+		return;
+	}
+
+	Client *client = new Client(loop, partition, fd, uid,
+				    next_client_num++);
+
+	(void)send(fd, GREETING, sizeof(GREETING) - 1, 0);
+
+	client_list.Add(*client);
+
+	remote = sockaddr_to_string(sa, sa_length, IgnoreError());
+	FormatInfo(client_domain, "[%u] opened from %s", client->num, remote);
+	g_free(remote);
+}
+
+void
+Client::Close()
+{
+	partition.instance.client_list->Remove(*this);
+
+	SetExpired();
+
+	FormatInfo(client_domain, "[%u] closed", num);
+	delete this;
+}
--- a/src/ClientProcess.cxx
+++ b/src/ClientProcess.cxx
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "protocol/Result.hxx"
+#include "command/AllCommands.hxx"
+#include "Log.hxx"
+
+#include <string.h>
+
+#define CLIENT_LIST_MODE_BEGIN "command_list_begin"
+#define CLIENT_LIST_OK_MODE_BEGIN "command_list_ok_begin"
+#define CLIENT_LIST_MODE_END "command_list_end"
+
+static CommandResult
+client_process_command_list(Client &client, bool list_ok,
+			    std::list<std::string> &&list)
+{
+	CommandResult ret = CommandResult::OK;
+	unsigned num = 0;
+
+	for (auto &&i : list) {
+		char *cmd = &*i.begin();
+
+		FormatDebug(client_domain, "process command \"%s\"", cmd);
+		ret = command_process(client, num++, cmd);
+		FormatDebug(client_domain, "command returned %i", ret);
+		if (ret != CommandResult::OK || client.IsExpired())
+			break;
+		else if (list_ok)
+			client_puts(client, "list_OK\n");
+	}
+
+	return ret;
+}
+
+CommandResult
+client_process_line(Client &client, char *line)
+{
+	CommandResult ret;
+
+	if (strcmp(line, "noidle") == 0) {
+		if (client.idle_waiting) {
+			/* send empty idle response and leave idle mode */
+			client.idle_waiting = false;
+			command_success(client);
+		}
+
+		/* do nothing if the client wasn't idling: the client
+		   has already received the full idle response from
+		   client_idle_notify(), which he can now evaluate */
+
+		return CommandResult::OK;
+	} else if (client.idle_waiting) {
+		/* during idle mode, clients must not send anything
+		   except "noidle" */
+		FormatWarning(client_domain,
+			      "[%u] command \"%s\" during idle",
+			      client.num, line);
+		return CommandResult::CLOSE;
+	}
+
+	if (client.cmd_list.IsActive()) {
+		if (strcmp(line, CLIENT_LIST_MODE_END) == 0) {
+			FormatDebug(client_domain,
+				    "[%u] process command list",
+				    client.num);
+
+			auto &&cmd_list = client.cmd_list.Commit();
+
+			ret = client_process_command_list(client,
+							  client.cmd_list.IsOKMode(),
+							  std::move(cmd_list));
+			FormatDebug(client_domain,
+				    "[%u] process command "
+				    "list returned %i", client.num, ret);
+
+			if (ret == CommandResult::CLOSE ||
+			    client.IsExpired())
+				return CommandResult::CLOSE;
+
+			if (ret == CommandResult::OK)
+				command_success(client);
+
+			client.cmd_list.Reset();
+		} else {
+			if (!client.cmd_list.Add(line)) {
+				FormatWarning(client_domain,
+					      "[%u] command list size "
+					      "is larger than the max (%lu)",
+					      client.num,
+					      (unsigned long)client_max_command_list_size);
+				return CommandResult::CLOSE;
+			}
+
+			ret = CommandResult::OK;
+		}
+	} else {
+		if (strcmp(line, CLIENT_LIST_MODE_BEGIN) == 0) {
+			client.cmd_list.Begin(false);
+			ret = CommandResult::OK;
+		} else if (strcmp(line, CLIENT_LIST_OK_MODE_BEGIN) == 0) {
+			client.cmd_list.Begin(true);
+			ret = CommandResult::OK;
+		} else {
+			FormatDebug(client_domain,
+				    "[%u] process command \"%s\"",
+				    client.num, line);
+			ret = command_process(client, 0, line);
+			FormatDebug(client_domain,
+				    "[%u] command returned %i",
+				    client.num, ret);
+
+			if (ret == CommandResult::CLOSE ||
+			    client.IsExpired())
+				return CommandResult::CLOSE;
+
+			if (ret == CommandResult::OK)
+				command_success(client);
+		}
+	}
+
+	return ret;
+}
--- a/src/ClientRead.cxx
+++ b/src/ClientRead.cxx
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "Main.hxx"
+#include "event/Loop.hxx"
+#include "util/CharUtil.hxx"
+
+#include <assert.h>
+#include <string.h>
+
+BufferedSocket::InputResult
+Client::OnSocketInput(void *data, size_t length)
+{
+	char *p = (char *)data;
+	char *newline = (char *)memchr(p, '\n', length);
+	if (newline == nullptr)
+		return InputResult::MORE;
+
+	TimeoutMonitor::ScheduleSeconds(client_timeout);
+
+	BufferedSocket::ConsumeInput(newline + 1 - p);
+
+	/* skip whitespace at the end of the line */
+	while (newline > p && IsWhitespaceOrNull(newline[-1]))
+		--newline;
+
+	/* terminate the string at the end of the line */
+	*newline = 0;
+
+	CommandResult result = client_process_line(*this, p);
+	switch (result) {
+	case CommandResult::OK:
+	case CommandResult::IDLE:
+	case CommandResult::ERROR:
+		break;
+
+	case CommandResult::KILL:
+		Close();
+		main_loop->Break();
+		return InputResult::CLOSED;
+
+	case CommandResult::FINISH:
+		if (Flush())
+			Close();
+		return InputResult::CLOSED;
+
+	case CommandResult::CLOSE:
+		Close();
+		return InputResult::CLOSED;
+	}
+
+	if (IsExpired()) {
+		Close();
+		return InputResult::CLOSED;
+	}
+
+	return InputResult::AGAIN;
+}
--- a/src/ClientSubscribe.cxx
+++ b/src/ClientSubscribe.cxx
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "Idle.hxx"
+
+#include <assert.h>
+#include <string.h>
+
+	bool Unsubscribe(const char *channel);
+	void UnsubscribeAll();
+	bool PushMessage(const ClientMessage &msg);
+
+Client::SubscribeResult
+Client::Subscribe(const char *channel)
+{
+	assert(channel != nullptr);
+
+	if (!client_message_valid_channel_name(channel))
+		return Client::SubscribeResult::INVALID;
+
+	if (num_subscriptions >= CLIENT_MAX_SUBSCRIPTIONS)
+		return Client::SubscribeResult::FULL;
+
+	auto r = subscriptions.insert(channel);
+	if (!r.second)
+		return Client::SubscribeResult::ALREADY;
+
+	++num_subscriptions;
+
+	idle_add(IDLE_SUBSCRIPTION);
+
+	return Client::SubscribeResult::OK;
+}
+
+bool
+Client::Unsubscribe(const char *channel)
+{
+	const auto i = subscriptions.find(channel);
+	if (i == subscriptions.end())
+		return false;
+
+	assert(num_subscriptions > 0);
+
+	subscriptions.erase(i);
+	--num_subscriptions;
+
+	idle_add(IDLE_SUBSCRIPTION);
+
+	assert((num_subscriptions == 0) ==
+	       subscriptions.empty());
+
+	return true;
+}
+
+void
+Client::UnsubscribeAll()
+{
+	subscriptions.clear();
+	num_subscriptions = 0;
+}
+
+bool
+Client::PushMessage(const ClientMessage &msg)
+{
+	if (messages.size() >= CLIENT_MAX_MESSAGES ||
+	    !IsSubscribed(msg.GetChannel()))
+		return false;
+
+	if (messages.empty())
+		IdleAdd(IDLE_MESSAGE);
+
+	messages.push_back(msg);
+	return true;
+}
--- a/src/ClientWrite.cxx
+++ b/src/ClientWrite.cxx
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ClientInternal.hxx"
+#include "util/FormatString.hxx"
+
+#include <string.h>
+
+/**
+ * Write a block of data to the client.
+ */
+static void
+client_write(Client &client, const char *data, size_t length)
+{
+	/* if the client is going to be closed, do nothing */
+	if (client.IsExpired() || length == 0)
+		return;
+
+	client.Write(data, length);
+}
+
+void
+client_puts(Client &client, const char *s)
+{
+	client_write(client, s, strlen(s));
+}
+
+void
+client_vprintf(Client &client, const char *fmt, va_list args)
+{
+	char *p = FormatNewV(fmt, args);
+	client_write(client, p, strlen(p));
+	delete[] p;
+}
+
+void
+client_printf(Client &client, const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+	client_vprintf(client, fmt, args);
+	va_end(args);
+}
--- a/src/CommandLine.cxx
+++ b/src/CommandLine.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,30 +18,34 @@
 */

 #include "config.h"
-#include "cmdline.h"
-#include "path.h"
-#include "log.h"
-#include "conf.h"
-#include "decoder_list.h"
-#include "decoder_plugin.h"
-#include "output_list.h"
-#include "output_plugin.h"
-#include "input_registry.h"
-#include "input_plugin.h"
-#include "playlist_list.h"
-#include "playlist_plugin.h"
-#include "ls.h"
-#include "mpd_error.h"
-#include "glib_compat.h"
+#include "CommandLine.hxx"
+#include "ls.hxx"
+#include "LogInit.hxx"
+#include "Log.hxx"
+#include "ConfigGlobal.hxx"
+#include "DecoderList.hxx"
+#include "DecoderPlugin.hxx"
+#include "OutputList.hxx"
+#include "OutputPlugin.hxx"
+#include "InputRegistry.hxx"
+#include "InputPlugin.hxx"
+#include "PlaylistRegistry.hxx"
+#include "PlaylistPlugin.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "fs/Traits.hxx"
+#include "fs/FileSystem.hxx"
+#include "util/Error.hxx"
+#include "util/Domain.hxx"
+#include "system/FatalError.hxx"

 #ifdef ENABLE_ENCODER
-#include "encoder_list.h"
-#include "encoder_plugin.h"
+#include "EncoderList.hxx"
+#include "EncoderPlugin.hxx"
 #endif

 #ifdef ENABLE_ARCHIVE
-#include "archive_list.h"
-#include "archive_plugin.h"
+#include "ArchiveList.hxx"
+#include "ArchivePlugin.hxx"
 #endif

 #include <glib.h>
@@ -49,41 +53,38 @@
 #include <stdio.h>
 #include <stdlib.h>

-#ifdef G_OS_WIN32
+#ifdef WIN32
 #define CONFIG_FILE_LOCATION		"\\mpd\\mpd.conf"
-#else /* G_OS_WIN32 */
+#else
 #define USER_CONFIG_FILE_LOCATION1	".mpdconf"
 #define USER_CONFIG_FILE_LOCATION2	".mpd/mpd.conf"
+#define USER_CONFIG_FILE_LOCATION_XDG	"mpd/mpd.conf"
 #endif

-static GQuark
-cmdline_quark(void)
-{
-	return g_quark_from_static_string("cmdline");
-}
+static constexpr Domain cmdline_domain("cmdline");

-G_GNUC_NORETURN
+gcc_noreturn
 static void version(void)
 {
-	puts(PACKAGE " (MPD: Music Player Daemon) " VERSION " \n"
+	puts("Music Player Daemon " VERSION "\n"
 	     "\n"
 	     "Copyright (C) 2003-2007 Warren Dukes <warren.dukes@gmail.com>\n"
-	     "Copyright (C) 2008-2012 Max Kellermann <max@duempel.org>\n"
+	     "Copyright (C) 2008-2013 Max Kellermann <max@duempel.org>\n"
 	     "This is free software; see the source for copying conditions.  There is NO\n"
 	     "warranty; not even MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
 	     "\n"
 	     "Decoders plugins:");

-	decoder_plugins_for_each(plugin) {
-		printf(" [%s]", plugin->name);
+	decoder_plugins_for_each([](const DecoderPlugin &plugin){
+			printf(" [%s]", plugin.name);

-		const char *const*suffixes = plugin->suffixes;
-		if (suffixes != NULL)
-			for (; *suffixes != NULL; ++suffixes)
-				printf(" %s", *suffixes);
+			const char *const*suffixes = plugin.suffixes;
+			if (suffixes != nullptr)
+				for (; *suffixes != nullptr; ++suffixes)
+					printf(" %s", *suffixes);

-		puts("");
-	}
+			puts("");
+		});

 	puts("\n"
 	     "Output plugins:");
@@ -106,8 +107,8 @@ static void version(void)
 		printf(" [%s]", plugin->name);

 		const char *const*suffixes = plugin->suffixes;
-		if (suffixes != NULL)
-			for (; *suffixes != NULL; ++suffixes)
+		if (suffixes != nullptr)
+			for (; *suffixes != nullptr; ++suffixes)
 				printf(" %s", *suffixes);

 		puts("");
@@ -134,11 +135,20 @@ static void version(void)
 static const char *summary =
 	"Music Player Daemon - a daemon for playing music.";

+gcc_pure
+static AllocatedPath
+PathBuildChecked(const AllocatedPath &a, PathTraits::const_pointer b)
+{
+	if (a.IsNull())
+		return AllocatedPath::Null();
+
+	return AllocatedPath::Build(a, b);
+}
+
 bool
 parse_cmdline(int argc, char **argv, struct options *options,
-	      GError **error_r)
+	      Error &error)
 {
-	GError *error = NULL;
 	GOptionContext *context;
 	bool ret;
 	static gboolean option_version,
@@ -146,20 +156,20 @@ parse_cmdline(int argc, char **argv, struct options *options,
 		option_no_config;
 	const GOptionEntry entries[] = {
 		{ "kill", 0, 0, G_OPTION_ARG_NONE, &options->kill,
-		  "kill the currently running mpd session", NULL },
+		  "kill the currently running mpd session", nullptr },
 		{ "no-config", 0, 0, G_OPTION_ARG_NONE, &option_no_config,
-		  "don't read from config", NULL },
+		  "don't read from config", nullptr },
 		{ "no-daemon", 0, 0, G_OPTION_ARG_NONE, &option_no_daemon,
-		  "don't detach from console", NULL },
+		  "don't detach from console", nullptr },
 		{ "stdout", 0, 0, G_OPTION_ARG_NONE, &options->log_stderr,
-		  NULL, NULL },
+		  nullptr, nullptr },
 		{ "stderr", 0, 0, G_OPTION_ARG_NONE, &options->log_stderr,
-		  "print messages to stderr", NULL },
+		  "print messages to stderr", nullptr },
 		{ "verbose", 'v', 0, G_OPTION_ARG_NONE, &options->verbose,
-		  "verbose logging", NULL },
+		  "verbose logging", nullptr },
 		{ "version", 'V', 0, G_OPTION_ARG_NONE, &option_version,
-		  "print version number", NULL },
-		{ .long_name = NULL }
+		  "print version number", nullptr },
+		{ nullptr, 0, 0, G_OPTION_ARG_NONE, nullptr, nullptr, nullptr }
 	};

 	options->kill = false;
@@ -168,15 +178,16 @@ parse_cmdline(int argc, char **argv, struct options *options,
 	options->verbose = false;

 	context = g_option_context_new("[path/to/mpd.conf]");
-	g_option_context_add_main_entries(context, entries, NULL);
+	g_option_context_add_main_entries(context, entries, nullptr);

 	g_option_context_set_summary(context, summary);

-	ret = g_option_context_parse(context, &argc, &argv, &error);
+	GError *gerror = nullptr;
+	ret = g_option_context_parse(context, &argc, &argv, &gerror);
 	g_option_context_free(context);

 	if (!ret)
-		MPD_ERROR("option parsing failed: %s\n", error->message);
+		FatalError("option parsing failed", gerror);

 	if (option_version)
 		version();
@@ -188,66 +199,55 @@ parse_cmdline(int argc, char **argv, struct options *options,
 	options->daemon = !option_no_daemon;

 	if (option_no_config) {
-		g_debug("Ignoring config, using daemon defaults\n");
+		LogDebug(cmdline_domain,
+			 "Ignoring config, using daemon defaults");
 		return true;
 	} else if (argc <= 1) {
 		/* default configuration file path */
-		char *path1;

-#ifdef G_OS_WIN32
-		path1 = g_build_filename(g_get_user_config_dir(),
-					CONFIG_FILE_LOCATION, NULL);
-		if (g_file_test(path1, G_FILE_TEST_IS_REGULAR))
-			ret = config_read_file(path1, error_r);
-		else {
-			int i = 0;
-			char *system_path = NULL;
-			const char * const *system_config_dirs;
+#ifdef WIN32
+		AllocatedPath path = PathBuildChecked(AllocatedPath::FromUTF8(g_get_user_config_dir()),
+					     CONFIG_FILE_LOCATION);
+		if (!path.IsNull() && FileExists(path))
+			return ReadConfigFile(path, error);

-			system_config_dirs = g_get_system_config_dirs();
+		const char *const*system_config_dirs =
+			g_get_system_config_dirs();

-			while(system_config_dirs[i] != NULL) {
-				system_path = g_build_filename(system_config_dirs[i],
-						CONFIG_FILE_LOCATION,
-						NULL);
-				if(g_file_test(system_path,
-						G_FILE_TEST_IS_REGULAR)) {
-					ret = config_read_file(system_path,error_r);
-					break;
-				}
-				++i;;
-			}
-			g_free(system_path);
-			g_free(&system_config_dirs);
+		for (unsigned i = 0; system_config_dirs[i] != nullptr; ++i) {
+			path = PathBuildChecked(AllocatedPath::FromUTF8(system_config_dirs[i]),
+						CONFIG_FILE_LOCATION);
+			if (!path.IsNull() && FileExists(path))
+				return ReadConfigFile(path, error);
 		}
-#else /* G_OS_WIN32 */
-		char *path2;
-		path1 = g_build_filename(g_get_home_dir(),
-					USER_CONFIG_FILE_LOCATION1, NULL);
-		path2 = g_build_filename(g_get_home_dir(),
-					USER_CONFIG_FILE_LOCATION2, NULL);
-		if (g_file_test(path1, G_FILE_TEST_IS_REGULAR))
-			ret = config_read_file(path1, error_r);
-		else if (g_file_test(path2, G_FILE_TEST_IS_REGULAR))
-			ret = config_read_file(path2, error_r);
-		else if (g_file_test(SYSTEM_CONFIG_FILE_LOCATION,
-				     G_FILE_TEST_IS_REGULAR))
-			ret = config_read_file(SYSTEM_CONFIG_FILE_LOCATION,
-					       error_r);
+#else
+		AllocatedPath path = PathBuildChecked(AllocatedPath::FromUTF8(g_get_user_config_dir()),
+						      USER_CONFIG_FILE_LOCATION_XDG);
+		if (!path.IsNull() && FileExists(path))
+			return ReadConfigFile(path, error);
+
+		path = PathBuildChecked(AllocatedPath::FromUTF8(g_get_home_dir()),
+					     USER_CONFIG_FILE_LOCATION1);
+		if (!path.IsNull() && FileExists(path))
+			return ReadConfigFile(path, error);
+
+		path = PathBuildChecked(AllocatedPath::FromUTF8(g_get_home_dir()),
+					USER_CONFIG_FILE_LOCATION2);
+		if (!path.IsNull() && FileExists(path))
+			return ReadConfigFile(path, error);
+
+		path = AllocatedPath::FromUTF8(SYSTEM_CONFIG_FILE_LOCATION);
+		if (!path.IsNull() && FileExists(path))
+			return ReadConfigFile(path, error);
 #endif

-		g_free(path1);
-#ifndef G_OS_WIN32
-		g_free(path2);
-#endif
-
-		return ret;
+		error.Set(cmdline_domain, "No configuration file found");
+		return false;
 	} else if (argc == 2) {
 		/* specified configuration file */
-		return config_read_file(argv[1], error_r);
+		return ReadConfigFile(Path::FromFS(argv[1]), error);
 	} else {
-		g_set_error(error_r, cmdline_quark(), 0,
-			    "too many arguments");
+		error.Set(cmdline_domain, "too many arguments");
 		return false;
 	}
 }
--- a/src/CommandLine.hxx
+++ b/src/CommandLine.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,12 +17,12 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef CMDLINE_H
-#define CMDLINE_H
+#ifndef MPD_COMMAND_LINE_HXX
+#define MPD_COMMAND_LINE_HXX

 #include <glib.h>

-#include <stdbool.h>
+class Error;

 struct options {
 	gboolean kill;
@@ -33,6 +33,6 @@ struct options {

 bool
 parse_cmdline(int argc, char **argv, struct options *options,
-	      GError **error_r);
+	      Error &error);

 #endif
--- a/src/Compiler.h
+++ b/src/Compiler.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef COMPILER_H
+#define COMPILER_H
+
+#define GCC_CHECK_VERSION(major, minor) \
+  (defined(__GNUC__) &&                                                 \
+   (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))))
+
+#ifdef __GNUC__
+#define GCC_VERSION (__GNUC__ * 10000 \
+                     + __GNUC_MINOR__ * 100 \
+                     + __GNUC_PATCHLEVEL__)
+#else
+#define GCC_VERSION 0
+#endif
+
+#ifdef __clang__
+#  define CLANG_VERSION (__clang_major__ * 10000 \
+			 + __clang_minor__ * 100 \
+			 + __clang_patchlevel__)
+#  if __clang_major__ < 3
+#    error Sorry, your clang version is too old.  You need at least version 3.1.
+#  endif
+#elif defined(__GNUC__)
+#  if !GCC_CHECK_VERSION(4,6)
+#    error Sorry, your gcc version is too old.  You need at least version 4.6.
+#  endif
+#else
+#  warning Untested compiler.  Use at your own risk!
+#endif
+
+#if GCC_CHECK_VERSION(4,0)
+
+/* GCC 4.x */
+
+#define gcc_const __attribute__((const))
+#define gcc_deprecated __attribute__((deprecated))
+#define gcc_may_alias __attribute__((may_alias))
+#define gcc_malloc __attribute__((malloc))
+#define gcc_noreturn __attribute__((noreturn))
+#define gcc_packed __attribute__((packed))
+#define gcc_printf(a,b) __attribute__((format(printf, a, b)))
+#define gcc_pure __attribute__((pure))
+#define gcc_sentinel __attribute__((sentinel))
+#define gcc_unused __attribute__((unused))
+#define gcc_warn_unused_result __attribute__((warn_unused_result))
+
+#define gcc_nonnull(...) __attribute__((nonnull(__VA_ARGS__)))
+#define gcc_nonnull_all __attribute__((nonnull))
+
+#define gcc_likely(x) __builtin_expect (!!(x), 1)
+#define gcc_unlikely(x) __builtin_expect (!!(x), 0)
+
+#define gcc_aligned(n) __attribute__((aligned(n)))
+
+#define gcc_visibility_hidden __attribute__((visibility("hidden")))
+#define gcc_visibility_default __attribute__((visibility("default")))
+
+#define gcc_always_inline __attribute__((always_inline))
+
+#else
+
+/* generic C compiler */
+
+#define gcc_const
+#define gcc_deprecated
+#define gcc_may_alias
+#define gcc_malloc
+#define gcc_noreturn
+#define gcc_packed
+#define gcc_printf(a,b)
+#define gcc_pure
+#define gcc_sentinel
+#define gcc_unused
+#define gcc_warn_unused_result
+
+#define gcc_nonnull(...)
+#define gcc_nonnull_all
+
+#define gcc_likely(x) (x)
+#define gcc_unlikely(x) (x)
+
+#define gcc_aligned(n)
+
+#define gcc_visibility_hidden
+#define gcc_visibility_default
+
+#define gcc_always_inline inline
+
+#endif
+
+#if GCC_CHECK_VERSION(4,3)
+
+#define gcc_hot __attribute__((hot))
+#define gcc_cold __attribute__((cold))
+
+#else /* ! GCC_UNUSED >= 40300 */
+
+#define gcc_hot
+#define gcc_cold
+
+#endif /* ! GCC_UNUSED >= 40300 */
+
+#if GCC_CHECK_VERSION(4,6) && !defined(__clang__)
+#define gcc_flatten __attribute__((flatten))
+#else
+#define gcc_flatten
+#endif
+
+#ifndef __cplusplus
+/* plain C99 has "restrict" */
+#define gcc_restrict restrict
+#elif GCC_CHECK_VERSION(4,0)
+/* "__restrict__" is a GCC extension for C++ */
+#define gcc_restrict __restrict__
+#else
+/* disable it on other compilers */
+#define gcc_restrict
+#endif
+
+/* C++11 features */
+
+#if defined(__cplusplus)
+
+/* support for C++11 "override" was added in gcc 4.7 */
+#if !defined(__clang__) && !GCC_CHECK_VERSION(4,7)
+#define override
+#define final
+#endif
+
+#if defined(__clang__) || GCC_CHECK_VERSION(4,8)
+#define gcc_alignas(T, fallback) alignas(T)
+#else
+#define gcc_alignas(T, fallback) gcc_aligned(fallback)
+#endif
+
+#endif
+
+#ifndef __has_feature
+  // define dummy macro for non-clang compilers
+  #define __has_feature(x) 0
+#endif
+
+#if __has_feature(attribute_unused_on_fields)
+#define gcc_unused_field gcc_unused
+#else
+#define gcc_unused_field
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#define gcc_unreachable() __builtin_unreachable()
+#else
+#define gcc_unreachable()
+#endif
+
+#endif
--- a/src/ConfigData.cxx
+++ b/src/ConfigData.cxx
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ConfigData.hxx"
+#include "ConfigParser.hxx"
+#include "ConfigPath.hxx"
+#include "util/Error.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "system/FatalError.hxx"
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+int
+block_param::GetIntValue() const
+{
+	char *endptr;
+	long value2 = strtol(value.c_str(), &endptr, 0);
+	if (*endptr != 0)
+		FormatFatalError("Not a valid number in line %i", line);
+
+	return value2;
+}
+
+unsigned
+block_param::GetUnsignedValue() const
+{
+	char *endptr;
+	unsigned long value2 = strtoul(value.c_str(), &endptr, 0);
+	if (*endptr != 0)
+		FormatFatalError("Not a valid number in line %i", line);
+
+	return (unsigned)value2;
+}
+
+bool
+block_param::GetBoolValue() const
+{
+	bool value2;
+	if (!get_bool(value.c_str(), &value2))
+		FormatFatalError("%s is not a boolean value (yes, true, 1) or "
+				 "(no, false, 0) on line %i\n",
+				 name.c_str(), line);
+
+	return value2;
+}
+
+config_param::config_param(const char *_value, int _line)
+	:next(nullptr), value(_value), line(_line) {}
+
+config_param::~config_param()
+{
+	delete next;
+}
+
+const block_param *
+config_param::GetBlockParam(const char *name) const
+{
+	for (const auto &i : block_params) {
+		if (i.name == name) {
+			i.used = true;
+			return &i;
+		}
+	}
+
+	return NULL;
+}
+
+const char *
+config_param::GetBlockValue(const char *name, const char *default_value) const
+{
+	const block_param *bp = GetBlockParam(name);
+	if (bp == nullptr)
+		return default_value;
+
+	return bp->value.c_str();
+}
+
+AllocatedPath
+config_param::GetBlockPath(const char *name, const char *default_value,
+			   Error &error) const
+{
+	assert(!error.IsDefined());
+
+	int line2 = line;
+	const char *s;
+
+	const block_param *bp = GetBlockParam(name);
+	if (bp != nullptr) {
+		line2 = bp->line;
+		s = bp->value.c_str();
+	} else {
+		if (default_value == nullptr)
+			return AllocatedPath::Null();
+
+		s = default_value;
+	}
+
+	AllocatedPath path = ParsePath(s, error);
+	if (gcc_unlikely(path.IsNull()))
+		error.FormatPrefix("Invalid path in \"%s\" at line %i: ",
+				   name, line2);
+
+	return path;
+}
+
+AllocatedPath
+config_param::GetBlockPath(const char *name, Error &error) const
+{
+	return GetBlockPath(name, nullptr, error);
+}
+
+int
+config_param::GetBlockValue(const char *name, int default_value) const
+{
+	const block_param *bp = GetBlockParam(name);
+	if (bp == nullptr)
+		return default_value;
+
+	return bp->GetIntValue();
+}
+
+unsigned
+config_param::GetBlockValue(const char *name, unsigned default_value) const
+{
+	const block_param *bp = GetBlockParam(name);
+	if (bp == nullptr)
+		return default_value;
+
+	return bp->GetUnsignedValue();
+}
+
+gcc_pure
+bool
+config_param::GetBlockValue(const char *name, bool default_value) const
+{
+	const block_param *bp = GetBlockParam(name);
+	if (bp == NULL)
+		return default_value;
+
+	return bp->GetBoolValue();
+}
--- a/src/ConfigData.hxx
+++ b/src/ConfigData.hxx
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_DATA_HXX
+#define MPD_CONFIG_DATA_HXX
+
+#include "ConfigOption.hxx"
+#include "Compiler.h"
+
+#include <string>
+#include <array>
+#include <vector>
+
+class AllocatedPath;
+class Error;
+
+struct block_param {
+	std::string name;
+	std::string value;
+	int line;
+
+	/**
+	 * This flag is false when nobody has queried the value of
+	 * this option yet.
+	 */
+	mutable bool used;
+
+	gcc_nonnull_all
+	block_param(const char *_name, const char *_value, int _line=-1)
+		:name(_name), value(_value), line(_line), used(false) {}
+
+	gcc_pure
+	int GetIntValue() const;
+
+	gcc_pure
+	unsigned GetUnsignedValue() const;
+
+	gcc_pure
+	bool GetBoolValue() const;
+};
+
+struct config_param {
+	/**
+	 * The next config_param with the same name.  The destructor
+	 * deletes the whole chain.
+	 */
+	struct config_param *next;
+
+	std::string value;
+
+	unsigned int line;
+
+	std::vector<block_param> block_params;
+
+	/**
+	 * This flag is false when nobody has queried the value of
+	 * this option yet.
+	 */
+	bool used;
+
+	config_param(int _line=-1)
+		:next(nullptr), line(_line), used(false) {}
+
+	gcc_nonnull_all
+	config_param(const char *_value, int _line=-1);
+
+	config_param(const config_param &) = delete;
+
+	~config_param();
+
+	config_param &operator=(const config_param &) = delete;
+
+	/**
+	 * Determine if this is a "null" instance, i.e. an empty
+	 * object that was synthesized and not loaded from a
+	 * configuration file.
+	 */
+	bool IsNull() const {
+		return line == unsigned(-1);
+	}
+
+	gcc_nonnull_all
+	void AddBlockParam(const char *_name, const char *_value,
+			   int _line=-1) {
+		block_params.emplace_back(_name, _value, _line);
+	}
+
+	gcc_nonnull_all gcc_pure
+	const block_param *GetBlockParam(const char *_name) const;
+
+	gcc_pure
+	const char *GetBlockValue(const char *name,
+				  const char *default_value=nullptr) const;
+
+	/**
+	 * Same as config_dup_path(), but looks up the setting in the
+	 * specified block.
+	 */
+	AllocatedPath GetBlockPath(const char *name, const char *default_value,
+				   Error &error) const;
+
+	AllocatedPath GetBlockPath(const char *name, Error &error) const;
+
+	gcc_pure
+	int GetBlockValue(const char *name, int default_value) const;
+
+	gcc_pure
+	unsigned GetBlockValue(const char *name, unsigned default_value) const;
+
+	gcc_pure
+	bool GetBlockValue(const char *name, bool default_value) const;
+};
+
+struct ConfigData {
+	std::array<config_param *, std::size_t(CONF_MAX)> params;
+};
+
+#endif
--- a/src/ConfigDefaults.hxx
+++ b/src/ConfigDefaults.hxx
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_DEFAULTS_HXX
+#define MPD_CONFIG_DEFAULTS_HXX
+
+static constexpr unsigned DEFAULT_PLAYLIST_MAX_LENGTH = 16 * 1024;
+static constexpr bool DEFAULT_PLAYLIST_SAVE_ABSOLUTE_PATHS = false;
+
+#endif
--- a/src/ConfigError.cxx
+++ b/src/ConfigError.cxx
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "ConfigError.hxx"
+#include "util/Domain.hxx"
+
+const Domain config_domain("config");
--- a/src/ConfigError.hxx
+++ b/src/ConfigError.hxx
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_ERROR_HXX
+#define MPD_CONFIG_ERROR_HXX
+
+extern const class Domain config_domain;
+
+#endif
--- a/src/ConfigFile.cxx
+++ b/src/ConfigFile.cxx
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ConfigFile.hxx"
+#include "ConfigError.hxx"
+#include "ConfigData.hxx"
+#include "ConfigTemplates.hxx"
+#include "util/Tokenizer.hxx"
+#include "util/StringUtil.hxx"
+#include "util/Error.hxx"
+#include "util/Domain.hxx"
+#include "fs/Limits.hxx"
+#include "fs/Path.hxx"
+#include "fs/FileSystem.hxx"
+#include "Log.hxx"
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+
+#define MAX_STRING_SIZE	MPD_PATH_MAX+80
+
+#define CONF_COMMENT		'#'
+
+static constexpr Domain config_file_domain("config_file");
+
+static bool
+config_read_name_value(struct config_param *param, char *input, unsigned line,
+		       Error &error)
+{
+	Tokenizer tokenizer(input);
+
+	const char *name = tokenizer.NextWord(error);
+	if (name == nullptr) {
+		assert(!tokenizer.IsEnd());
+		return false;
+	}
+
+	const char *value = tokenizer.NextString(error);
+	if (value == nullptr) {
+		if (tokenizer.IsEnd()) {
+			error.Set(config_file_domain, "Value missing");
+		} else {
+			assert(error.IsDefined());
+		}
+
+		return false;
+	}
+
+	if (!tokenizer.IsEnd() && tokenizer.CurrentChar() != CONF_COMMENT) {
+		error.Set(config_file_domain, "Unknown tokens after value");
+		return false;
+	}
+
+	const struct block_param *bp = param->GetBlockParam(name);
+	if (bp != nullptr) {
+		error.Format(config_file_domain,
+			     "\"%s\" is duplicate, first defined on line %i",
+			     name, bp->line);
+		return false;
+	}
+
+	param->AddBlockParam(name, value, line);
+	return true;
+}
+
+static struct config_param *
+config_read_block(FILE *fp, int *count, char *string, Error &error)
+{
+	struct config_param *ret = new config_param(*count);
+
+	while (true) {
+		char *line;
+
+		line = fgets(string, MAX_STRING_SIZE, fp);
+		if (line == nullptr) {
+			delete ret;
+			error.Set(config_file_domain,
+				  "Expected '}' before end-of-file");
+			return nullptr;
+		}
+
+		(*count)++;
+		line = strchug_fast(line);
+		if (*line == 0 || *line == CONF_COMMENT)
+			continue;
+
+		if (*line == '}') {
+			/* end of this block; return from the function
+			   (and from this "while" loop) */
+
+			line = strchug_fast(line + 1);
+			if (*line != 0 && *line != CONF_COMMENT) {
+				delete ret;
+				error.Format(config_file_domain,
+					     "line %i: Unknown tokens after '}'",
+					     *count);
+				return nullptr;
+			}
+
+			return ret;
+		}
+
+		/* parse name and value */
+
+		if (!config_read_name_value(ret, line, *count, error)) {
+			assert(*line != 0);
+			delete ret;
+			error.FormatPrefix("line %i: ", *count);
+			return nullptr;
+		}
+	}
+}
+
+gcc_nonnull_all
+static void
+Append(config_param *&head, config_param *p)
+{
+	assert(p->next == nullptr);
+
+	config_param **i = &head;
+	while (*i != nullptr)
+		i = &(*i)->next;
+
+	*i = p;
+}
+
+static bool
+ReadConfigFile(ConfigData &config_data, FILE *fp, Error &error)
+{
+	assert(fp != nullptr);
+
+	char string[MAX_STRING_SIZE + 1];
+	int count = 0;
+	struct config_param *param;
+
+	while (fgets(string, MAX_STRING_SIZE, fp)) {
+		char *line;
+		const char *name, *value;
+
+		count++;
+
+		line = strchug_fast(string);
+		if (*line == 0 || *line == CONF_COMMENT)
+			continue;
+
+		/* the first token in each line is the name, followed
+		   by either the value or '{' */
+
+		Tokenizer tokenizer(line);
+		name = tokenizer.NextWord(error);
+		if (name == nullptr) {
+			assert(!tokenizer.IsEnd());
+			error.FormatPrefix("line %i: ", count);
+			return false;
+		}
+
+		/* get the definition of that option, and check the
+		   "repeatable" flag */
+
+		const ConfigOption o = ParseConfigOptionName(name);
+		if (o == CONF_MAX) {
+			error.Format(config_file_domain,
+				     "unrecognized parameter in config file at "
+				     "line %i: %s\n", count, name);
+			return false;
+		}
+
+		const unsigned i = unsigned(o);
+		const ConfigTemplate &option = config_templates[i];
+		config_param *&head = config_data.params[i];
+
+		if (head != nullptr && !option.repeatable) {
+			param = head;
+			error.Format(config_file_domain,
+				     "config parameter \"%s\" is first defined "
+				     "on line %i and redefined on line %i\n",
+				     name, param->line, count);
+			return false;
+		}
+
+		/* now parse the block or the value */
+
+		if (option.block) {
+			/* it's a block, call config_read_block() */
+
+			if (tokenizer.CurrentChar() != '{') {
+				error.Format(config_file_domain,
+					     "line %i: '{' expected", count);
+				return false;
+			}
+
+			line = strchug_fast(tokenizer.Rest() + 1);
+			if (*line != 0 && *line != CONF_COMMENT) {
+				error.Format(config_file_domain,
+					     "line %i: Unknown tokens after '{'",
+					     count);
+				return false;
+			}
+
+			param = config_read_block(fp, &count, string, error);
+			if (param == nullptr) {
+				return false;
+			}
+		} else {
+			/* a string value */
+
+			value = tokenizer.NextString(error);
+			if (value == nullptr) {
+				if (tokenizer.IsEnd())
+					error.Format(config_file_domain,
+						     "line %i: Value missing",
+						     count);
+				else
+					error.FormatPrefix("line %i: ", count);
+
+				return false;
+			}
+
+			if (!tokenizer.IsEnd() &&
+			    tokenizer.CurrentChar() != CONF_COMMENT) {
+				error.Format(config_file_domain,
+					     "line %i: Unknown tokens after value",
+					     count);
+				return false;
+			}
+
+			param = new config_param(value, count);
+		}
+
+		Append(head, param);
+	}
+
+	return true;
+}
+
+bool
+ReadConfigFile(ConfigData &config_data, Path path, Error &error)
+{
+	assert(!path.IsNull());
+	const std::string path_utf8 = path.ToUTF8();
+
+	FormatDebug(config_file_domain, "loading file %s", path_utf8.c_str());
+
+	FILE *fp = FOpen(path, FOpenMode::ReadText);
+	if (fp == nullptr) {
+		error.FormatErrno("Failed to open %s", path_utf8.c_str());
+		return false;
+	}
+
+	bool result = ReadConfigFile(config_data, fp, error);
+	fclose(fp);
+	return result;
+}
--- a/src/ConfigFile.hxx
+++ b/src/ConfigFile.hxx
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_FILE_HXX
+#define MPD_CONFIG_FILE_HXX
+
+class Error;
+class Path;
+struct ConfigData;
+
+bool
+ReadConfigFile(ConfigData &data, Path path, Error &error);
+
+#endif
--- a/src/ConfigGlobal.cxx
+++ b/src/ConfigGlobal.cxx
@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ConfigGlobal.hxx"
+#include "ConfigParser.hxx"
+#include "ConfigData.hxx"
+#include "ConfigFile.hxx"
+#include "ConfigPath.hxx"
+#include "ConfigError.hxx"
+#include "fs/Path.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "util/Error.hxx"
+#include "system/FatalError.hxx"
+#include "Log.hxx"
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+static ConfigData config_data;
+
+void config_global_finish(void)
+{
+	for (auto i : config_data.params)
+		delete i;
+}
+
+void config_global_init(void)
+{
+}
+
+bool
+ReadConfigFile(Path path, Error &error)
+{
+	return ReadConfigFile(config_data, path, error);
+}
+
+static void
+Check(const config_param *param)
+{
+	if (!param->used)
+		/* this whole config_param was not queried at all -
+		   the feature might be disabled at compile time?
+		   Silently ignore it here. */
+		return;
+
+	for (const auto &i : param->block_params) {
+		if (!i.used)
+			FormatWarning(config_domain,
+				      "option '%s' on line %i was not recognized",
+				      i.name.c_str(), i.line);
+	}
+}
+
+void config_global_check(void)
+{
+	for (auto i : config_data.params)
+		for (const config_param *p = i; p != nullptr; p = p->next)
+			Check(p);
+}
+
+const struct config_param *
+config_get_next_param(ConfigOption option, const struct config_param * last)
+{
+	config_param *param = last != nullptr
+		? last->next
+		: config_data.params[unsigned(option)];
+	if (param != nullptr)
+		param->used = true;
+	return param;
+}
+
+const char *
+config_get_string(ConfigOption option, const char *default_value)
+{
+	const struct config_param *param = config_get_param(option);
+
+	if (param == nullptr)
+		return default_value;
+
+	return param->value.c_str();
+}
+
+AllocatedPath
+config_get_path(ConfigOption option, Error &error)
+{
+	const struct config_param *param = config_get_param(option);
+	if (param == nullptr)
+		return AllocatedPath::Null();
+
+	return config_parse_path(param, error);
+}
+
+AllocatedPath
+config_parse_path(const struct config_param *param, Error & error)
+{
+	AllocatedPath path = ParsePath(param->value.c_str(), error);
+	if (gcc_unlikely(path.IsNull()))
+		error.FormatPrefix("Invalid path at line %i: ",
+				   param->line);
+
+	return path;
+}
+
+unsigned
+config_get_unsigned(ConfigOption option, unsigned default_value)
+{
+	const struct config_param *param = config_get_param(option);
+	long value;
+	char *endptr;
+
+	if (param == nullptr)
+		return default_value;
+
+	value = strtol(param->value.c_str(), &endptr, 0);
+	if (*endptr != 0 || value < 0)
+		FormatFatalError("Not a valid non-negative number in line %i",
+				 param->line);
+
+	return (unsigned)value;
+}
+
+unsigned
+config_get_positive(ConfigOption option, unsigned default_value)
+{
+	const struct config_param *param = config_get_param(option);
+	long value;
+	char *endptr;
+
+	if (param == nullptr)
+		return default_value;
+
+	value = strtol(param->value.c_str(), &endptr, 0);
+	if (*endptr != 0)
+		FormatFatalError("Not a valid number in line %i", param->line);
+
+	if (value <= 0)
+		FormatFatalError("Not a positive number in line %i",
+				 param->line);
+
+	return (unsigned)value;
+}
+
+bool
+config_get_bool(ConfigOption option, bool default_value)
+{
+	const struct config_param *param = config_get_param(option);
+	bool success, value;
+
+	if (param == nullptr)
+		return default_value;
+
+	success = get_bool(param->value.c_str(), &value);
+	if (!success)
+		FormatFatalError("Expected boolean value (yes, true, 1) or "
+				 "(no, false, 0) on line %i\n",
+				 param->line);
+
+	return value;
+}
--- a/src/ConfigGlobal.hxx
+++ b/src/ConfigGlobal.hxx
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_GLOBAL_HXX
+#define MPD_CONFIG_GLOBAL_HXX
+
+#include "ConfigOption.hxx"
+#include "Compiler.h"
+
+class Error;
+class Path;
+class AllocatedPath;
+
+void config_global_init(void);
+void config_global_finish(void);
+
+/**
+ * Call this function after all configuration has been evaluated.  It
+ * checks for unused parameters, and logs warnings.
+ */
+void config_global_check(void);
+
+bool
+ReadConfigFile(Path path, Error &error);
+
+/* don't free the returned value
+   set _last_ to nullptr to get first entry */
+gcc_pure
+const struct config_param *
+config_get_next_param(enum ConfigOption option,
+		      const struct config_param *last);
+
+gcc_pure
+static inline const struct config_param *
+config_get_param(enum ConfigOption option)
+{
+	return config_get_next_param(option, nullptr);
+}
+
+/* Note on gcc_pure: Some of the functions declared pure are not
+   really pure in strict sense.  They have side effect such that they
+   validate parameter's value and signal an error if it's invalid.
+   However, if the argument was already validated or we don't care
+   about the argument at all, this may be ignored so in the end, we
+   should be fine with calling those functions pure.  */
+
+gcc_pure
+const char *
+config_get_string(enum ConfigOption option, const char *default_value);
+
+/**
+ * Returns an optional configuration variable which contains an
+ * absolute path.  If there is a tilde prefix, it is expanded.
+ * Returns AllocatedPath::Null() if the value is not present.  If the path
+ * could not be parsed, returns AllocatedPath::Null() and sets the error.
+ */
+AllocatedPath
+config_get_path(enum ConfigOption option, Error &error);
+
+/**
+ * Parse a configuration parameter as a path.
+ * If there is a tilde prefix, it is expanded. If the path could
+ * not be parsed, returns AllocatedPath::Null() and sets the error.
+ */
+AllocatedPath
+config_parse_path(const struct config_param *param, Error & error_r);
+
+gcc_pure
+unsigned
+config_get_unsigned(enum ConfigOption option, unsigned default_value);
+
+gcc_pure
+unsigned
+config_get_positive(enum ConfigOption option, unsigned default_value);
+
+gcc_pure
+bool config_get_bool(enum ConfigOption option, bool default_value);
+
+#endif
--- a/src/ConfigOption.hxx
+++ b/src/ConfigOption.hxx
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_OPTION_HXX
+#define MPD_CONFIG_OPTION_HXX
+
+#include "Compiler.h"
+
+enum ConfigOption {
+	CONF_MUSIC_DIR,
+	CONF_PLAYLIST_DIR,
+	CONF_FOLLOW_INSIDE_SYMLINKS,
+	CONF_FOLLOW_OUTSIDE_SYMLINKS,
+	CONF_DB_FILE,
+	CONF_STICKER_FILE,
+	CONF_LOG_FILE,
+	CONF_PID_FILE,
+	CONF_STATE_FILE,
+	CONF_RESTORE_PAUSED,
+	CONF_USER,
+	CONF_GROUP,
+	CONF_BIND_TO_ADDRESS,
+	CONF_PORT,
+	CONF_LOG_LEVEL,
+	CONF_ZEROCONF_NAME,
+	CONF_ZEROCONF_ENABLED,
+	CONF_PASSWORD,
+	CONF_DEFAULT_PERMS,
+	CONF_AUDIO_OUTPUT,
+	CONF_AUDIO_OUTPUT_FORMAT,
+	CONF_MIXER_TYPE,
+	CONF_REPLAYGAIN,
+	CONF_REPLAYGAIN_PREAMP,
+	CONF_REPLAYGAIN_MISSING_PREAMP,
+	CONF_REPLAYGAIN_LIMIT,
+	CONF_VOLUME_NORMALIZATION,
+	CONF_SAMPLERATE_CONVERTER,
+	CONF_AUDIO_BUFFER_SIZE,
+	CONF_BUFFER_BEFORE_PLAY,
+	CONF_HTTP_PROXY_HOST,
+	CONF_HTTP_PROXY_PORT,
+	CONF_HTTP_PROXY_USER,
+	CONF_HTTP_PROXY_PASSWORD,
+	CONF_CONN_TIMEOUT,
+	CONF_MAX_CONN,
+	CONF_MAX_PLAYLIST_LENGTH,
+	CONF_MAX_COMMAND_LIST_SIZE,
+	CONF_MAX_OUTPUT_BUFFER_SIZE,
+	CONF_FS_CHARSET,
+	CONF_ID3V1_ENCODING,
+	CONF_METADATA_TO_USE,
+	CONF_SAVE_ABSOLUTE_PATHS,
+	CONF_DECODER,
+	CONF_INPUT,
+	CONF_GAPLESS_MP3_PLAYBACK,
+	CONF_PLAYLIST_PLUGIN,
+	CONF_AUTO_UPDATE,
+	CONF_AUTO_UPDATE_DEPTH,
+	CONF_DESPOTIFY_USER,
+	CONF_DESPOTIFY_PASSWORD,
+	CONF_DESPOTIFY_HIGH_BITRATE,
+	CONF_AUDIO_FILTER,
+	CONF_DATABASE,
+	CONF_MAX
+};
+
+/**
+ * @return #CONF_MAX if not found
+ */
+gcc_pure
+enum ConfigOption
+ParseConfigOptionName(const char *name);
+
+#endif
--- a/src/ConfigParser.cxx
+++ b/src/ConfigParser.cxx
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "ConfigParser.hxx"
+#include "util/StringUtil.hxx"
+
+bool
+get_bool(const char *value, bool *value_r)
+{
+	static const char *t[] = { "yes", "true", "1", nullptr };
+	static const char *f[] = { "no", "false", "0", nullptr };
+
+	if (string_array_contains(t, value)) {
+		*value_r = true;
+		return true;
+	}
+
+	if (string_array_contains(f, value)) {
+		*value_r = false;
+		return true;
+	}
+
+	return false;
+}
--- a/src/ConfigParser.hxx
+++ b/src/ConfigParser.hxx
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_PARSER_HXX
+#define MPD_CONFIG_PARSER_HXX
+
+bool
+get_bool(const char *value, bool *value_r);
+
+#endif
--- a/src/ConfigPath.cxx
+++ b/src/ConfigPath.cxx
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ConfigPath.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "fs/Traits.hxx"
+#include "fs/Domain.hxx"
+#include "util/Error.hxx"
+#include "ConfigGlobal.hxx"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <string.h>
+
+#ifndef WIN32
+#include <pwd.h>
+
+/**
+ * Determine a given user's home directory.
+ */
+static AllocatedPath
+GetHome(const char *user, Error &error)
+{
+	passwd *pw = getpwnam(user);
+	if (pw == nullptr) {
+		error.Format(path_domain,
+			     "no such user: %s", user);
+		return AllocatedPath::Null();
+	}
+
+	return AllocatedPath::FromFS(pw->pw_dir);
+}
+
+/**
+ * Determine the current user's home directory.
+ */
+static AllocatedPath
+GetHome(Error &error)
+{
+	const char *home = g_get_home_dir();
+	if (home == nullptr) {
+		error.Set(path_domain,
+			  "problems getting home for current user");
+		return AllocatedPath::Null();
+	}
+
+	return AllocatedPath::FromUTF8(home, error);
+}
+
+/**
+ * Determine the configured user's home directory.
+ */
+static AllocatedPath
+GetConfiguredHome(Error &error)
+{
+	const char *user = config_get_string(CONF_USER, nullptr);
+	return user != nullptr
+		? GetHome(user, error)
+		: GetHome(error);
+}
+
+#endif
+
+AllocatedPath
+ParsePath(const char *path, Error &error)
+{
+	assert(path != nullptr);
+
+#ifndef WIN32
+	if (path[0] == '~') {
+		++path;
+
+		if (*path == '\0')
+			return GetConfiguredHome(error);
+
+		AllocatedPath home = AllocatedPath::Null();
+
+		if (*path == '/') {
+			home = GetConfiguredHome(error);
+
+			++path;
+		} else {
+			const char *slash = strchr(path, '/');
+			const char *end = slash == nullptr
+					? path + strlen(path)
+					: slash;
+			const std::string user(path, end);
+			home = GetHome(user.c_str(), error);
+
+			if (slash == nullptr)
+				return home;
+
+			path = slash + 1;
+		}
+
+		if (home.IsNull())
+			return AllocatedPath::Null();
+
+		AllocatedPath path2 = AllocatedPath::FromUTF8(path, error);
+		if (path2.IsNull())
+			return AllocatedPath::Null();
+
+		return AllocatedPath::Build(home, path2);
+	} else if (!PathTraits::IsAbsoluteUTF8(path)) {
+		error.Format(path_domain,
+			     "not an absolute path: %s", path);
+		return AllocatedPath::Null();
+	} else {
+#endif
+		return AllocatedPath::FromUTF8(path, error);
+#ifndef WIN32
+	}
+#endif
+}
--- a/src/ConfigPath.hxx
+++ b/src/ConfigPath.hxx
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_PATH_HXX
+#define MPD_CONFIG_PATH_HXX
+
+class AllocatedPath;
+class Error;
+
+AllocatedPath
+ParsePath(const char *path, Error &error);
+
+#endif
--- a/src/ConfigTemplates.cxx
+++ b/src/ConfigTemplates.cxx
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "ConfigTemplates.hxx"
+#include "ConfigOption.hxx"
+
+#include <string.h>
+
+const ConfigTemplate config_templates[] = {
+	{ "music_directory", false, false },
+	{ "playlist_directory", false, false },
+	{ "follow_inside_symlinks", false, false },
+	{ "follow_outside_symlinks", false, false },
+	{ "db_file", false, false },
+	{ "sticker_file", false, false },
+	{ "log_file", false, false },
+	{ "pid_file", false, false },
+	{ "state_file", false, false },
+	{ "restore_paused", false, false },
+	{ "user", false, false },
+	{ "group", false, false },
+	{ "bind_to_address", true, false },
+	{ "port", false, false },
+	{ "log_level", false, false },
+	{ "zeroconf_name", false, false },
+	{ "zeroconf_enabled", false, false },
+	{ "password", true, false },
+	{ "default_permissions", false, false },
+	{ "audio_output", true, true },
+	{ "audio_output_format", false, false },
+	{ "mixer_type", false, false },
+	{ "replaygain", false, false },
+	{ "replaygain_preamp", false, false },
+	{ "replaygain_missing_preamp", false, false },
+	{ "replaygain_limit", false, false },
+	{ "volume_normalization", false, false },
+	{ "samplerate_converter", false, false },
+	{ "audio_buffer_size", false, false },
+	{ "buffer_before_play", false, false },
+	{ "http_proxy_host", false, false },
+	{ "http_proxy_port", false, false },
+	{ "http_proxy_user", false, false },
+	{ "http_proxy_password", false, false },
+	{ "connection_timeout", false, false },
+	{ "max_connections", false, false },
+	{ "max_playlist_length", false, false },
+	{ "max_command_list_size", false, false },
+	{ "max_output_buffer_size", false, false },
+	{ "filesystem_charset", false, false },
+	{ "id3v1_encoding", false, false },
+	{ "metadata_to_use", false, false },
+	{ "save_absolute_paths_in_playlists", false, false },
+	{ "decoder", true, true },
+	{ "input", true, true },
+	{ "gapless_mp3_playback", false, false },
+	{ "playlist_plugin", true, true },
+	{ "auto_update", false, false },
+	{ "auto_update_depth", false, false },
+	{ "despotify_user", false, false },
+	{ "despotify_password", false, false},
+	{ "despotify_high_bitrate", false, false },
+	{ "filter", true, true },
+	{ "database", false, true },
+};
+
+static constexpr unsigned n_config_templates =
+	sizeof(config_templates) / sizeof(config_templates[0]);
+
+static_assert(n_config_templates == unsigned(CONF_MAX),
+	      "Wrong number of config_templates");
+
+ConfigOption
+ParseConfigOptionName(const char *name)
+{
+	for (unsigned i = 0; i < n_config_templates; ++i)
+		if (strcmp(config_templates[i].name, name) == 0)
+			return ConfigOption(i);
+
+	return CONF_MAX;
+}
--- a/src/ConfigTemplates.hxx
+++ b/src/ConfigTemplates.hxx
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CONFIG_TEMPLATES_HXX
+#define MPD_CONFIG_TEMPLATES_HXX
+
+#include "ConfigOption.hxx"
+
+struct ConfigTemplate {
+	const char *const name;
+	const bool repeatable;
+	const bool block;
+};
+
+extern const ConfigTemplate config_templates[];
+
+#endif
--- a/src/CrossFade.cxx
+++ b/src/CrossFade.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,31 +18,25 @@
 */

 #include "config.h"
-#include "crossfade.h"
-#include "chunk.h"
-#include "audio_format.h"
-#include "tag.h"
+#include "CrossFade.hxx"
+#include "MusicChunk.hxx"
+#include "AudioFormat.hxx"
+#include "util/NumberParser.hxx"
+#include "util/Domain.hxx"
+#include "Log.hxx"

 #include <assert.h>
 #include <string.h>
 #include <stdlib.h>
-#include <glib.h>

-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "crossfade"
+static constexpr Domain cross_fade_domain("cross_fade");

-#ifdef G_OS_WIN32
-static char *
-strtok_r(char *str, const char *delim, G_GNUC_UNUSED char **saveptr)
+gcc_pure
+static float
+mixramp_interpolate(const char *ramp_list, float required_db)
 {
-	return strtok(str, delim);
-}
-#endif
-
-static float mixramp_interpolate(char *ramp_list, float required_db)
-{
-	float db, secs, last_db = nan(""), last_secs = 0;
-	char *ramp_str, *save_str = NULL;
+	float last_db = 0, last_secs = 0;
+	bool have_last = false;

 	/* ramp_list is a string of pairs of dBs and seconds that describe the
 	 * volume profile. Delimiters are semi-colons between pairs and spaces
@@ -50,24 +44,22 @@ static float mixramp_interpolate(char *ramp_list, float required_db)
 	 * The dB values must be monotonically increasing for this to work. */

 	while (1) {
-		/* Parse the dB tokens out of the input string. */
-		ramp_str = strtok_r(ramp_list, " ", &save_str);
-
-		/* Tell strtok to continue next time round. */
-		ramp_list = NULL;
-
 		/* Parse the dB value. */
-		if (NULL == ramp_str) {
-			return nan("");
-		}
-		db = (float)atof(ramp_str);
+		char *endptr;
+		const float db = ParseFloat(ramp_list, &endptr);
+		if (endptr == ramp_list || *endptr != ' ')
+			break;
+
+		ramp_list = endptr + 1;

 		/* Parse the time. */
-		ramp_str = strtok_r(NULL, ";", &save_str);
-		if (NULL == ramp_str) {
-			return nan("");
-		}
-		secs = (float)atof(ramp_str);
+		float secs = ParseFloat(ramp_list, &endptr);
+		if (endptr == ramp_list || (*endptr != ';' && *endptr != 0))
+			break;
+
+		ramp_list = endptr;
+		if (*ramp_list == ';')
+			++ramp_list;

 		/* Check for exact match. */
 		if (db == required_db) {
@@ -78,58 +70,70 @@ static float mixramp_interpolate(char *ramp_list, float required_db)
 		if (db < required_db) {
 			last_db = db;
 			last_secs = secs;
+			have_last = true;
 			continue;
 		}

 		/* If required db < any stored value, use the least. */
-		if (isnan(last_db)) {
+		if (!have_last)
 			return secs;
-		}

 		/* Finally, interpolate linearly. */
 		secs = last_secs + (required_db - last_db) * (secs - last_secs) / (db - last_db);
 		return secs;
 	}
+
+	return -1;
 }

-unsigned cross_fade_calc(float duration, float total_time,
-			 float mixramp_db, float mixramp_delay,
-			 float replay_gain_db, float replay_gain_prev_db,
-			 char *mixramp_start, char *mixramp_prev_end,
-			 const struct audio_format *af,
-			 const struct audio_format *old_format,
-			 unsigned max_chunks)
+unsigned
+CrossFadeSettings::Calculate(float total_time,
+			     float replay_gain_db, float replay_gain_prev_db,
+			     const char *mixramp_start, const char *mixramp_prev_end,
+			     const AudioFormat af,
+			     const AudioFormat old_format,
+			     unsigned max_chunks) const
 {
 	unsigned int chunks = 0;
 	float chunks_f;
-	float mixramp_overlap;

 	if (duration < 0 || duration >= total_time ||
 	    /* we can't crossfade when the audio formats are different */
-	    !audio_format_equals(af, old_format))
+	    af != old_format)
 		return 0;

 	assert(duration >= 0);
-	assert(audio_format_valid(af));
+	assert(af.IsValid());

-	chunks_f = (float)audio_format_time_to_size(af) / (float)CHUNK_SIZE;
+	chunks_f = (float)af.GetTimeToSize() / (float)CHUNK_SIZE;

-	if (isnan(mixramp_delay) || !(mixramp_start) || !(mixramp_prev_end)) {
+	if (mixramp_delay <= 0 || !mixramp_start || !mixramp_prev_end) {
 		chunks = (chunks_f * duration + 0.5);
 	} else {
 		/* Calculate mixramp overlap. */
-		mixramp_overlap = mixramp_interpolate(mixramp_start, mixramp_db - replay_gain_db)
-		  + mixramp_interpolate(mixramp_prev_end, mixramp_db - replay_gain_prev_db);
-		if (!isnan(mixramp_overlap) && (mixramp_delay <= mixramp_overlap)) {
+		const float mixramp_overlap_current =
+			mixramp_interpolate(mixramp_start,
+					    mixramp_db - replay_gain_db);
+		const float mixramp_overlap_prev =
+			mixramp_interpolate(mixramp_prev_end,
+					    mixramp_db - replay_gain_prev_db);
+		const float mixramp_overlap =
+			mixramp_overlap_current + mixramp_overlap_prev;
+
+		if (mixramp_overlap_current >= 0 &&
+		    mixramp_overlap_prev >= 0 &&
+		    mixramp_delay <= mixramp_overlap) {
 			chunks = (chunks_f * (mixramp_overlap - mixramp_delay));
-			g_debug("will overlap %d chunks, %fs", chunks,
-				mixramp_overlap - mixramp_delay);
+			FormatDebug(cross_fade_domain,
+				    "will overlap %d chunks, %fs", chunks,
+				    mixramp_overlap - mixramp_delay);
 		}
 	}

 	if (chunks > max_chunks) {
 		chunks = max_chunks;
-		g_warning("audio_buffer_size too small for computed MixRamp overlap");
+		LogWarning(cross_fade_domain,
+			   "audio_buffer_size too small for computed MixRamp overlap");
 	}

 	return chunks;
--- a/src/CrossFade.hxx
+++ b/src/CrossFade.hxx
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_CROSSFADE_HXX
+#define MPD_CROSSFADE_HXX
+
+#include "Compiler.h"
+
+struct AudioFormat;
+
+struct CrossFadeSettings {
+	/**
+	 * The configured cross fade duration [s].
+	 */
+	float duration;
+
+	float mixramp_db;
+
+	/**
+	 * The configured MixRapm delay [s].  A non-positive value
+	 * disables MixRamp.
+	 */
+	float mixramp_delay;
+
+	CrossFadeSettings()
+		:duration(0),
+		 mixramp_db(0),
+		 mixramp_delay(-1)
+	{}
+
+
+	/**
+	 * Calculate how many music pipe chunks should be used for crossfading.
+	 *
+	 * @param total_time total_time the duration of the new song
+	 * @param replay_gain_db the ReplayGain adjustment used for this song
+	 * @param replay_gain_prev_db the ReplayGain adjustment used on the last song
+	 * @param mixramp_start the next songs mixramp_start tag
+	 * @param mixramp_prev_end the last songs mixramp_end setting
+	 * @param af the audio format of the new song
+	 * @param old_format the audio format of the current song
+	 * @param max_chunks the maximum number of chunks
+	 * @return the number of chunks for crossfading, or 0 if cross fading
+	 * should be disabled for this song change
+	 */
+	gcc_pure
+	unsigned Calculate(float total_time,
+			   float replay_gain_db, float replay_gain_prev_db,
+			   const char *mixramp_start,
+			   const char *mixramp_prev_end,
+			   AudioFormat af, AudioFormat old_format,
+			   unsigned max_chunks) const;
+};
+
+#endif
--- a/src/Daemon.cxx
+++ b/src/Daemon.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,14 +18,18 @@
 */

 #include "config.h"
-#include "daemon.h"
+#include "Daemon.hxx"
+#include "system/FatalError.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "fs/FileSystem.hxx"
+#include "util/Domain.hxx"
+#include "Log.hxx"

 #include <glib.h>

 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <errno.h>
 #include <string.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -37,8 +41,7 @@
 #include <grp.h>
 #endif

-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "daemon"
+static constexpr Domain daemon_domain("daemon");

 #ifndef WIN32

@@ -52,7 +55,7 @@ static uid_t user_uid = (uid_t)-1;
 static gid_t user_gid = (pid_t)-1;

 /** the absolute path of the pidfile */
-static char *pidfile;
+static AllocatedPath pidfile = AllocatedPath::Null();

 /* whether "group" conf. option was given */
 static bool had_group = false;
@@ -64,24 +67,27 @@ daemonize_kill(void)
 	FILE *fp;
 	int pid, ret;

-	if (pidfile == NULL)
-		MPD_ERROR("no pid_file specified in the config file");
+	if (pidfile.IsNull())
+		FatalError("no pid_file specified in the config file");

-	fp = fopen(pidfile, "r");
-	if (fp == NULL)
-		MPD_ERROR("unable to open pid file \"%s\": %s",
-			  pidfile, g_strerror(errno));
+	fp = FOpen(pidfile, "r");
+	if (fp == nullptr) {
+		const std::string utf8 = pidfile.ToUTF8();
+		FormatFatalSystemError("Unable to open pid file \"%s\"",
+				       utf8.c_str());
+	}

 	if (fscanf(fp, "%i", &pid) != 1) {
-		MPD_ERROR("unable to read the pid from file \"%s\"",
-			  pidfile);
+		const std::string utf8 = pidfile.ToUTF8();
+		FormatFatalError("unable to read the pid from file \"%s\"",
+				 utf8.c_str());
 	}
 	fclose(fp);

 	ret = kill(pid, SIGTERM);
 	if (ret < 0)
-		MPD_ERROR("unable to kill process %i: %s",
-			  pid, g_strerror(errno));
+		FormatFatalSystemError("unable to kill process %i",
+				       int(pid));

 	exit(EXIT_SUCCESS);
 }
@@ -96,14 +102,14 @@ daemonize_close_stdin(void)
 void
 daemonize_set_user(void)
 {
-	if (user_name == NULL)
+	if (user_name == nullptr)
 		return;

 	/* set gid */
 	if (user_gid != (gid_t)-1 && user_gid != getgid()) {
 		if (setgid(user_gid) == -1) {
-			MPD_ERROR("cannot setgid to %d: %s",
-				  (int)user_gid, g_strerror(errno));
+			FormatFatalSystemError("Failed to set group %d",
+					       (int)user_gid);
 		}
 	}

@@ -112,17 +118,17 @@ daemonize_set_user(void)
 	 * (must be done before we change our uid)
 	 */
 	if (!had_group && initgroups(user_name, user_gid) == -1) {
-		g_warning("cannot init supplementary groups "
-			  "of user \"%s\": %s",
-			  user_name, g_strerror(errno));
+		FormatFatalSystemError("Failed to set supplementary groups "
+				       "of user \"%s\"",
+				       user_name);
 	}
 #endif

 	/* set uid */
 	if (user_uid != (uid_t)-1 && user_uid != getuid() &&
 	    setuid(user_uid) == -1) {
-		MPD_ERROR("cannot change to uid of user \"%s\": %s",
-			  user_name, g_strerror(errno));
+		FormatFatalSystemError("Failed to set user \"%s\"",
+				       user_name);
 	}
 }

@@ -131,12 +137,12 @@ daemonize_detach(void)
 {
 	/* flush all file handles before duplicating the buffers */

-	fflush(NULL);
+	fflush(nullptr);

 #ifdef HAVE_DAEMON

 	if (daemon(0, 1))
-		MPD_ERROR("daemon() failed: %s", g_strerror(errno));
+		FatalSystemError("daemon() failed");

 #elif defined(HAVE_FORK)

@@ -144,7 +150,7 @@ daemonize_detach(void)

 	switch (fork()) {
 	case -1:
-		MPD_ERROR("fork() failed: %s", g_strerror(errno));
+		FatalSystemError("fork() failed");
 	case 0:
 		break;
 	default:
@@ -155,52 +161,53 @@ daemonize_detach(void)
 	/* release the current working directory */

 	if (chdir("/") < 0)
-		MPD_ERROR("problems changing to root directory");
+		FatalError("problems changing to root directory");

 	/* detach from the current session */

 	setsid();

 #else
-	MPD_ERROR("no support for daemonizing");
+	FatalError("no support for daemonizing");
 #endif

-	g_debug("daemonized!");
+	LogDebug(daemon_domain, "daemonized");
 }

 void
 daemonize(bool detach)
 {
-	FILE *fp = NULL;
+	FILE *fp = nullptr;

-	if (pidfile != NULL) {
+	if (!pidfile.IsNull()) {
 		/* do this before daemon'izing so we can fail gracefully if we can't
 		 * write to the pid file */
-		g_debug("opening pid file");
-		fp = fopen(pidfile, "w+");
+		LogDebug(daemon_domain, "opening pid file");
+		fp = FOpen(pidfile, "w+");
 		if (!fp) {
-			MPD_ERROR("could not create pid file \"%s\": %s",
-				  pidfile, g_strerror(errno));
+			const std::string utf8 = pidfile.ToUTF8();
+			FormatFatalSystemError("Failed to create pid file \"%s\"",
+					       pidfile.c_str());
 		}
 	}

 	if (detach)
 		daemonize_detach();

-	if (pidfile != NULL) {
-		g_debug("writing pid file");
+	if (!pidfile.IsNull()) {
+		LogDebug(daemon_domain, "writing pid file");
 		fprintf(fp, "%lu\n", (unsigned long)getpid());
 		fclose(fp);
 	}
 }

 void
-daemonize_init(const char *user, const char *group, const char *_pidfile)
+daemonize_init(const char *user, const char *group, AllocatedPath &&_pidfile)
 {
 	if (user) {
 		struct passwd *pwd = getpwnam(user);
-		if (!pwd)
-			MPD_ERROR("no such user \"%s\"", user);
+		if (pwd == nullptr)
+			FormatFatalError("no such user \"%s\"", user);

 		user_uid = pwd->pw_uid;
 		user_gid = pwd->pw_gid;
@@ -212,25 +219,26 @@ daemonize_init(const char *user, const char *group, const char *_pidfile)
 	}

 	if (group) {
-		struct group *grp = grp = getgrnam(group);
-		if (!grp)
-			MPD_ERROR("no such group \"%s\"", group);
+		struct group *grp = getgrnam(group);
+		if (grp == nullptr)
+			FormatFatalError("no such group \"%s\"", group);
 		user_gid = grp->gr_gid;
 		had_group = true;
 	}


-	pidfile = g_strdup(_pidfile);
+	pidfile = std::move(_pidfile);
 }

 void
 daemonize_finish(void)
 {
-	if (pidfile != NULL)
-		unlink(pidfile);
+	if (!pidfile.IsNull()) {
+		RemoveFile(pidfile);
+		pidfile = AllocatedPath::Null();
+	}

 	g_free(user_name);
-	g_free(pidfile);
 }

 #endif
--- a/src/Daemon.hxx
+++ b/src/Daemon.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,19 +17,17 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef DAEMON_H
-#define DAEMON_H
+#ifndef MPD_DAEMON_HXX
+#define MPD_DAEMON_HXX

-#include "mpd_error.h"
-
-#include <stdbool.h>
+class AllocatedPath;

 #ifndef WIN32
 void
-daemonize_init(const char *user, const char *group, const char *pidfile);
+daemonize_init(const char *user, const char *group, AllocatedPath &&pidfile);
 #else
 static inline void
-daemonize_init(const char *user, const char *group, const char *pidfile)
+daemonize_init(const char *user, const char *group, AllocatedPath &&pidfile)
 { (void)user; (void)group; (void)pidfile; }
 #endif

@@ -50,10 +48,12 @@ daemonize_finish(void)
 void
 daemonize_kill(void);
 #else
-#include <glib.h>
+#include "system/FatalError.hxx"
 static inline void
 daemonize_kill(void)
-{ MPD_ERROR("--kill is not available on WIN32"); }
+{
+	FatalError("--kill is not available on WIN32");
+}
 #endif

 /**
--- a/src/DatabaseError.cxx
+++ b/src/DatabaseError.cxx
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "DatabaseError.hxx"
+#include "util/Domain.hxx"
+
+const Domain db_domain("db");
--- a/src/DatabaseError.hxx
+++ b/src/DatabaseError.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -17,10 +17,10 @@
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

-#ifndef MPD_DB_ERROR_H
-#define MPD_DB_ERROR_H
+#ifndef MPD_DB_ERROR_HXX
+#define MPD_DB_ERROR_HXX

-#include <glib.h>
+class Domain;

 enum db_error {
 	/**
@@ -32,14 +32,6 @@ enum db_error {
 	DB_NOT_FOUND,
 };

-/**
- * Quark for GError.domain; the code is an enum #db_error.
- */
-G_GNUC_CONST
-static inline GQuark
-db_quark(void)
-{
-	return g_quark_from_static_string("db");
-}
+extern const Domain db_domain;

 #endif
--- a/src/DatabaseGlue.cxx
+++ b/src/DatabaseGlue.cxx
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "DatabaseGlue.hxx"
+#include "DatabaseSimple.hxx"
+#include "DatabaseRegistry.hxx"
+#include "DatabaseSave.hxx"
+#include "DatabaseError.hxx"
+#include "Directory.hxx"
+#include "util/Error.hxx"
+#include "ConfigData.hxx"
+#include "Stats.hxx"
+#include "DatabasePlugin.hxx"
+#include "db/SimpleDatabasePlugin.hxx"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+
+
+static Database *db;
+static bool db_is_open;
+static bool is_simple;
+
+bool
+DatabaseGlobalInit(const config_param &param, Error &error)
+{
+	assert(db == nullptr);
+	assert(!db_is_open);
+
+	const char *plugin_name =
+		param.GetBlockValue("plugin", "simple");
+	is_simple = strcmp(plugin_name, "simple") == 0;
+
+	const DatabasePlugin *plugin = GetDatabasePluginByName(plugin_name);
+	if (plugin == nullptr) {
+		error.Format(db_domain,
+			     "No such database plugin: %s", plugin_name);
+		return false;
+	}
+
+	db = plugin->create(param, error);
+	return db != nullptr;
+}
+
+void
+DatabaseGlobalDeinit(void)
+{
+	if (db_is_open)
+		db->Close();
+
+	if (db != nullptr)
+		delete db;
+}
+
+const Database *
+GetDatabase()
+{
+	assert(db == nullptr || db_is_open);
+
+	return db;
+}
+
+const Database *
+GetDatabase(Error &error)
+{
+	assert(db == nullptr || db_is_open);
+
+	if (db == nullptr)
+		error.Set(db_domain, DB_DISABLED, "No database");
+
+	return db;
+}
+
+bool
+db_is_simple(void)
+{
+	assert(db == nullptr || db_is_open);
+
+	return is_simple;
+}
+
+Directory *
+db_get_root(void)
+{
+	assert(db != nullptr);
+	assert(db_is_simple());
+
+	return ((SimpleDatabase *)db)->GetRoot();
+}
+
+Directory *
+db_get_directory(const char *name)
+{
+	if (db == nullptr)
+		return nullptr;
+
+	Directory *music_root = db_get_root();
+	if (name == nullptr)
+		return music_root;
+
+	return music_root->LookupDirectory(name);
+}
+
+bool
+db_save(Error &error)
+{
+	assert(db != nullptr);
+	assert(db_is_open);
+	assert(db_is_simple());
+
+	return ((SimpleDatabase *)db)->Save(error);
+}
+
+bool
+DatabaseGlobalOpen(Error &error)
+{
+	assert(db != nullptr);
+	assert(!db_is_open);
+
+	if (!db->Open(error))
+		return false;
+
+	db_is_open = true;
+
+	stats_update();
+
+	return true;
+}
+
+time_t
+db_get_mtime(void)
+{
+	assert(db != nullptr);
+	assert(db_is_open);
+	assert(db_is_simple());
+
+	return ((SimpleDatabase *)db)->GetLastModified();
+}
--- a/src/DatabaseGlue.hxx
+++ b/src/DatabaseGlue.hxx
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_DATABASE_GLUE_HXX
+#define MPD_DATABASE_GLUE_HXX
+
+#include "Compiler.h"
+
+struct config_param;
+class Database;
+class Error;
+
+/**
+ * Initialize the database library.
+ *
+ * @param param the database configuration block
+ */
+bool
+DatabaseGlobalInit(const config_param &param, Error &error);
+
+void
+DatabaseGlobalDeinit(void);
+
+bool
+DatabaseGlobalOpen(Error &error);
+
+/**
+ * Returns the global #Database instance.  May return nullptr if this MPD
+ * configuration has no database (no music_directory was configured).
+ */
+gcc_pure
+const Database *
+GetDatabase();
+
+/**
+ * Returns the global #Database instance.  May return nullptr if this MPD
+ * configuration has no database (no music_directory was configured).
+ */
+gcc_pure
+const Database *
+GetDatabase(Error &error);
+
+#endif
--- a/src/DatabaseHelpers.cxx
+++ b/src/DatabaseHelpers.cxx
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "DatabaseHelpers.hxx"
+#include "DatabasePlugin.hxx"
+#include "Song.hxx"
+#include "tag/Tag.hxx"
+
+#include <functional>
+#include <set>
+
+#include <string.h>
+
+struct StringLess {
+	gcc_pure
+	bool operator()(const char *a, const char *b) const {
+		return strcmp(a, b) < 0;
+	}
+};
+
+typedef std::set<const char *, StringLess> StringSet;
+
+static bool
+CollectTags(StringSet &set, TagType tag_type, Song &song)
+{
+	Tag *tag = song.tag;
+	if (tag == nullptr)
+		return true;
+
+	bool found = false;
+	for (unsigned i = 0; i < tag->num_items; ++i) {
+		if (tag->items[i]->type == tag_type) {
+			set.insert(tag->items[i]->value);
+			found = true;
+		}
+	}
+
+	if (!found)
+		set.insert("");
+
+	return true;
+}
+
+bool
+VisitUniqueTags(const Database &db, const DatabaseSelection &selection,
+		TagType tag_type,
+		VisitString visit_string,
+		Error &error)
+{
+	StringSet set;
+
+	using namespace std::placeholders;
+	const auto f = std::bind(CollectTags, std::ref(set), tag_type, _1);
+	if (!db.Visit(selection, f, error))
+		return false;
+
+	for (auto value : set)
+		if (!visit_string(value, error))
+			return false;
+
+	return true;
+}
+
+static void
+StatsVisitTag(DatabaseStats &stats, StringSet &artists, StringSet &albums,
+	      const Tag &tag)
+{
+	if (tag.time > 0)
+		stats.total_duration += tag.time;
+
+	for (unsigned i = 0; i < tag.num_items; ++i) {
+		const TagItem &item = *tag.items[i];
+
+		switch (item.type) {
+		case TAG_ARTIST:
+			artists.insert(item.value);
+			break;
+
+		case TAG_ALBUM:
+			albums.insert(item.value);
+			break;
+
+		default:
+			break;
+		}
+	}
+}
+
+static bool
+StatsVisitSong(DatabaseStats &stats, StringSet &artists, StringSet &albums,
+	       Song &song)
+{
+	++stats.song_count;
+
+	if (song.tag != nullptr)
+		StatsVisitTag(stats, artists, albums, *song.tag);
+
+	return true;
+}
+
+bool
+GetStats(const Database &db, const DatabaseSelection &selection,
+	 DatabaseStats &stats, Error &error)
+{
+	stats.Clear();
+
+	StringSet artists, albums;
+	using namespace std::placeholders;
+	const auto f = std::bind(StatsVisitSong,
+				 std::ref(stats), std::ref(artists),
+				 std::ref(albums), _1);
+	if (!db.Visit(selection, f, error))
+		return false;
+
+	stats.artist_count = artists.size();
+	stats.album_count = albums.size();
+	return true;
+}
--- a/src/DatabaseHelpers.hxx
+++ b/src/DatabaseHelpers.hxx
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_MEMORY_DATABASE_PLUGIN_HXX
+#define MPD_MEMORY_DATABASE_PLUGIN_HXX
+
+#include "DatabaseVisitor.hxx"
+#include "tag/TagType.h"
+#include "Compiler.h"
+
+class Error;
+class Database;
+struct DatabaseSelection;
+struct DatabaseStats;
+
+bool
+VisitUniqueTags(const Database &db, const DatabaseSelection &selection,
+		TagType tag_type,
+		VisitString visit_string,
+		Error &error);
+
+bool
+GetStats(const Database &db, const DatabaseSelection &selection,
+	 DatabaseStats &stats, Error &error);
+
+#endif
--- a/src/DatabaseLock.cxx
+++ b/src/DatabaseLock.cxx
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "DatabaseLock.hxx"
+#include "Compiler.h"
+
+Mutex db_mutex;
+
+#ifndef NDEBUG
+ThreadId db_mutex_holder;
+#endif
--- a/src/DatabaseLock.hxx
+++ b/src/DatabaseLock.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -23,29 +23,31 @@
 * multi-threading.
 */

-#ifndef MPD_DB_LOCK_H
-#define MPD_DB_LOCK_H
+#ifndef MPD_DB_LOCK_HXX
+#define MPD_DB_LOCK_HXX

 #include "check.h"
+#include "thread/Mutex.hxx"
+#include "Compiler.h"

-#include <glib.h>
 #include <assert.h>
-#include <stdbool.h>

-extern GStaticMutex db_mutex;
+extern Mutex db_mutex;

 #ifndef NDEBUG

-extern GThread *db_mutex_holder;
+#include "thread/Id.hxx"
+
+extern ThreadId db_mutex_holder;

 /**
 * Does the current thread hold the database lock?
 */
-G_GNUC_PURE
+gcc_pure
 static inline bool
 holding_db_lock(void)
 {
-	return db_mutex_holder == g_thread_self();
+	return db_mutex_holder.IsInside();
 }

 #endif
@@ -59,11 +61,11 @@ db_lock(void)
 {
 	assert(!holding_db_lock());

-	g_static_mutex_lock(&db_mutex);
+	db_mutex.lock();

-	assert(db_mutex_holder == NULL);
+	assert(db_mutex_holder.IsNull());
 #ifndef NDEBUG
-	db_mutex_holder = g_thread_self();
+	db_mutex_holder = ThreadId::GetCurrent();
 #endif
 }

@@ -75,10 +77,21 @@ db_unlock(void)
 {
 	assert(holding_db_lock());
 #ifndef NDEBUG
-	db_mutex_holder = NULL;
+	db_mutex_holder = ThreadId::Null();
 #endif

-	g_static_mutex_unlock(&db_mutex);
+	db_mutex.unlock();
 }

+class ScopeDatabaseLock {
+public:
+	ScopeDatabaseLock() {
+		db_lock();
+	}
+
+	~ScopeDatabaseLock() {
+		db_unlock();
+	}
+};
+
 #endif
--- a/src/DatabasePlaylist.cxx
+++ b/src/DatabasePlaylist.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
@@ -18,41 +18,33 @@
 */

 #include "config.h"
-#include "pcm_buffer.h"
-#include "poison.h"
+#include "DatabasePlaylist.hxx"
+#include "DatabaseSelection.hxx"
+#include "PlaylistFile.hxx"
+#include "DatabaseGlue.hxx"
+#include "DatabasePlugin.hxx"

-/**
- * Align the specified size to the next 8k boundary.
- */
-G_GNUC_CONST
-static size_t
-align_8k(size_t size)
+#include <functional>
+
+static bool
+AddSong(const char *playlist_path_utf8,
+	Song &song, Error &error)
 {
-	return ((size - 1) | 0x1fff) + 1;
+	return spl_append_song(playlist_path_utf8, song, error);
 }

-void *
-pcm_buffer_get(struct pcm_buffer *buffer, size_t size)
+bool
+search_add_to_playlist(const char *uri, const char *playlist_path_utf8,
+		       const SongFilter *filter,
+		       Error &error)
 {
-	assert(buffer != NULL);
+	const Database *db = GetDatabase(error);
+	if (db == nullptr)
+		return false;

-	if (size == 0)
-		/* never return NULL, because NULL would be assumed to
-		   be an error condition */
-		size = 1;
+	const DatabaseSelection selection(uri, true, filter);

-	if (buffer->size < size) {
-		/* free the old buffer */
-		g_free(buffer->buffer);
-
-		buffer->size = align_8k(size);
-		buffer->buffer = g_malloc(buffer->size);
-	} else {
-		/* discard old buffer contents */
-		poison_undefined(buffer->buffer, buffer->size);
-	}
-
-	assert(buffer->size >= size);
-
-	return buffer->buffer;
+	using namespace std::placeholders;
+	const auto f = std::bind(AddSong, playlist_path_utf8, _1, _2);
+	return db->Visit(selection, f, error);
 }
--- a/src/DatabasePlaylist.hxx
+++ b/src/DatabasePlaylist.hxx
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_DATABASE_PLAYLIST_HXX
+#define MPD_DATABASE_PLAYLIST_HXX
+
+#include "Compiler.h"
+
+class SongFilter;
+class Error;
+
+gcc_nonnull(1,2)
+bool
+search_add_to_playlist(const char *uri, const char *path_utf8,
+		       const SongFilter *filter,
+		       Error &error);
+
+#endif
--- a/src/DatabasePlugin.hxx
+++ b/src/DatabasePlugin.hxx
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/** \file
+ *
+ * This header declares the db_plugin class.  It describes a
+ * plugin API for databases of song metadata.
+ */
+
+#ifndef MPD_DATABASE_PLUGIN_HXX
+#define MPD_DATABASE_PLUGIN_HXX
+
+#include "DatabaseVisitor.hxx"
+#include "tag/TagType.h"
+#include "Compiler.h"
+
+struct config_param;
+struct DatabaseSelection;
+struct db_visitor;
+struct Song;
+class Error;
+
+struct DatabaseStats {
+	/**
+	 * Number of songs.
+	 */
+	unsigned song_count;
+
+	/**
+	 * Total duration of all songs (in seconds).
+	 */
+	unsigned long total_duration;
+
+	/**
+	 * Number of distinct artist names.
+	 */
+	unsigned artist_count;
+
+	/**
+	 * Number of distinct album names.
+	 */
+	unsigned album_count;
+
+	void Clear() {
+		song_count = 0;
+		total_duration = 0;
+		artist_count = album_count = 0;
+	}
+};
+
+class Database {
+public:
+	/**
+	 * Free instance data.
+         */
+	virtual ~Database() {}
+
+	/**
+         * Open the database.  Read it into memory if applicable.
+	 */
+	virtual bool Open(gcc_unused Error &error) {
+		return true;
+	}
+
+	/**
+         * Close the database, free allocated memory.
+	 */
+	virtual void Close() {}
+
+	/**
+         * Look up a song (including tag data) in the database.  When
+         * you don't need this anymore, call ReturnSong().
+	 *
+	 * @param uri_utf8 the URI of the song within the music
+	 * directory (UTF-8)
+	 */
+	virtual Song *GetSong(const char *uri_utf8,
+			      Error &error) const = 0;
+
+	/**
+	 * Mark the song object as "unused".  Call this on objects
+	 * returned by GetSong().
+	 */
+	virtual void ReturnSong(Song *song) const = 0;
+
+	/**
+	 * Visit the selected entities.
+	 */
+	virtual bool Visit(const DatabaseSelection &selection,
+			   VisitDirectory visit_directory,
+			   VisitSong visit_song,
+			   VisitPlaylist visit_playlist,
+			   Error &error) const = 0;
+
+	bool Visit(const DatabaseSelection &selection,
+		   VisitDirectory visit_directory,
+		   VisitSong visit_song,
+		   Error &error) const {
+		return Visit(selection, visit_directory, visit_song,
+			     VisitPlaylist(), error);
+	}
+
+	bool Visit(const DatabaseSelection &selection, VisitSong visit_song,
+		   Error &error) const {
+		return Visit(selection, VisitDirectory(), visit_song, error);
+	}
+
+	/**
+	 * Visit all unique tag values.
+	 */
+	virtual bool VisitUniqueTags(const DatabaseSelection &selection,
+				     TagType tag_type,
+				     VisitString visit_string,
+				     Error &error) const = 0;
+
+	virtual bool GetStats(const DatabaseSelection &selection,
+			      DatabaseStats &stats,
+			      Error &error) const = 0;
+};
+
+struct DatabasePlugin {
+	const char *name;
+
+	/**
+	 * Allocates and configures a database.
+	 */
+	Database *(*create)(const config_param &param,
+			    Error &error);
+};
+
+#endif
--- a/src/DatabasePrint.cxx
+++ b/src/DatabasePrint.cxx
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "DatabasePrint.hxx"
+#include "DatabaseSelection.hxx"
+#include "SongFilter.hxx"
+#include "PlaylistVector.hxx"
+#include "SongPrint.hxx"
+#include "TimePrint.hxx"
+#include "Directory.hxx"
+#include "Client.hxx"
+#include "tag/Tag.hxx"
+#include "Song.hxx"
+#include "DatabaseGlue.hxx"
+#include "DatabasePlugin.hxx"
+
+#include <functional>
+
+static bool
+PrintDirectoryBrief(Client &client, const Directory &directory)
+{
+	if (!directory.IsRoot())
+		client_printf(client, "directory: %s\n", directory.GetPath());
+
+	return true;
+}
+
+static bool
+PrintDirectoryFull(Client &client, const Directory &directory)
+{
+	if (!directory.IsRoot()) {
+		client_printf(client, "directory: %s\n", directory.GetPath());
+		time_print(client, "Last-Modified", directory.mtime);
+	}
+
+	return true;
+}
+
+
+static void
+print_playlist_in_directory(Client &client,
+			    const Directory &directory,
+			    const char *name_utf8)
+{
+	if (directory.IsRoot())
+		client_printf(client, "playlist: %s\n", name_utf8);
+	else
+		client_printf(client, "playlist: %s/%s\n",
+			      directory.GetPath(), name_utf8);
+}
+
+static bool
+PrintSongBrief(Client &client, const Song &song)
+{
+	assert(song.parent != nullptr);
+
+	song_print_uri(client, song);
+
+	if (song.tag != nullptr && song.tag->has_playlist)
+		/* this song file has an embedded CUE sheet */
+		print_playlist_in_directory(client, *song.parent, song.uri);
+
+	return true;
+}
+
+static bool
+PrintSongFull(Client &client, const Song &song)
+{
+	assert(song.parent != nullptr);
+
+	song_print_info(client, song);
+
+	if (song.tag != nullptr && song.tag->has_playlist)
+		/* this song file has an embedded CUE sheet */
+		print_playlist_in_directory(client, *song.parent, song.uri);
+
+	return true;
+}
+
+static bool
+PrintPlaylistBrief(Client &client,
+		   const PlaylistInfo &playlist,
+		   const Directory &directory)
+{
+	print_playlist_in_directory(client, directory, playlist.name.c_str());
+	return true;
+}
+
+static bool
+PrintPlaylistFull(Client &client,
+		  const PlaylistInfo &playlist,
+		  const Directory &directory)
+{
+	print_playlist_in_directory(client, directory, playlist.name.c_str());
+
+	if (playlist.mtime > 0)
+		time_print(client, "Last-Modified", playlist.mtime);
+
+	return true;
+}
+
+bool
+db_selection_print(Client &client, const DatabaseSelection &selection,
+		   bool full, Error &error)
+{
+	const Database *db = GetDatabase(error);
+	if (db == nullptr)
+		return false;
+
+	using namespace std::placeholders;
+	const auto d = selection.filter == nullptr
+		? std::bind(full ? PrintDirectoryFull : PrintDirectoryBrief,
+			    std::ref(client), _1)
+		: VisitDirectory();
+	const auto s = std::bind(full ? PrintSongFull : PrintSongBrief,
+				 std::ref(client), _1);
+	const auto p = selection.filter == nullptr
+		? std::bind(full ? PrintPlaylistFull : PrintPlaylistBrief,
+			    std::ref(client), _1, _2)
+		: VisitPlaylist();
+
+	return db->Visit(selection, d, s, p, error);
+}
+
+struct SearchStats {
+	int numberOfSongs;
+	unsigned long playTime;
+};
+
+static void printSearchStats(Client &client, SearchStats *stats)
+{
+	client_printf(client, "songs: %i\n", stats->numberOfSongs);
+	client_printf(client, "playtime: %li\n", stats->playTime);
+}
+
+static bool
+stats_visitor_song(SearchStats &stats, Song &song)
+{
+	stats.numberOfSongs++;
+	stats.playTime += song.GetDuration();
+
+	return true;
+}
+
+bool
+searchStatsForSongsIn(Client &client, const char *name,
+		      const SongFilter *filter,
+		      Error &error)
+{
+	const Database *db = GetDatabase(error);
+	if (db == nullptr)
+		return false;
+
+	const DatabaseSelection selection(name, true, filter);
+
+	SearchStats stats;
+	stats.numberOfSongs = 0;
+	stats.playTime = 0;
+
+	using namespace std::placeholders;
+	const auto f = std::bind(stats_visitor_song, std::ref(stats),
+				 _1);
+	if (!db->Visit(selection, f, error))
+		return false;
+
+	printSearchStats(client, &stats);
+	return true;
+}
+
+bool
+printAllIn(Client &client, const char *uri_utf8, Error &error)
+{
+	const DatabaseSelection selection(uri_utf8, true);
+	return db_selection_print(client, selection, false, error);
+}
+
+bool
+printInfoForAllIn(Client &client, const char *uri_utf8,
+		  Error &error)
+{
+	const DatabaseSelection selection(uri_utf8, true);
+	return db_selection_print(client, selection, true, error);
+}
+
+static bool
+PrintSongURIVisitor(Client &client, Song &song)
+{
+	song_print_uri(client, song);
+
+	return true;
+}
+
+static bool
+PrintUniqueTag(Client &client, TagType tag_type,
+	       const char *value)
+{
+	client_printf(client, "%s: %s\n", tag_item_names[tag_type], value);
+	return true;
+}
+
+bool
+listAllUniqueTags(Client &client, int type,
+		  const SongFilter *filter,
+		  Error &error)
+{
+	const Database *db = GetDatabase(error);
+	if (db == nullptr)
+		return false;
+
+	const DatabaseSelection selection("", true, filter);
+
+	if (type == LOCATE_TAG_FILE_TYPE) {
+		using namespace std::placeholders;
+		const auto f = std::bind(PrintSongURIVisitor,
+					 std::ref(client), _1);
+		return db->Visit(selection, f, error);
+	} else {
+		using namespace std::placeholders;
+		const auto f = std::bind(PrintUniqueTag, std::ref(client),
+					 (TagType)type, _1);
+		return db->VisitUniqueTags(selection, (TagType)type,
+					   f, error);
+	}
+}
--- a/src/DatabasePrint.hxx
+++ b/src/DatabasePrint.hxx
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_DB_PRINT_H
+#define MPD_DB_PRINT_H
+
+#include "Compiler.h"
+
+class SongFilter;
+struct DatabaseSelection;
+struct db_visitor;
+class Client;
+class Error;
+
+bool
+db_selection_print(Client &client, const DatabaseSelection &selection,
+		   bool full, Error &error);
+
+gcc_nonnull(2)
+bool
+printAllIn(Client &client, const char *uri_utf8, Error &error);
+
+gcc_nonnull(2)
+bool
+printInfoForAllIn(Client &client, const char *uri_utf8,
+		  Error &error);
+
+gcc_nonnull(2)
+bool
+searchStatsForSongsIn(Client &client, const char *name,
+		      const SongFilter *filter,
+		      Error &error);
+
+bool
+listAllUniqueTags(Client &client, int type,
+		  const SongFilter *filter,
+		  Error &error);
+
+#endif
--- a/src/DatabaseQueue.cxx
+++ b/src/DatabaseQueue.cxx
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "DatabaseQueue.hxx"
+#include "DatabaseSelection.hxx"
+#include "DatabaseGlue.hxx"
+#include "DatabasePlugin.hxx"
+#include "Partition.hxx"
+#include "util/Error.hxx"
+
+#include <functional>
+
+static bool
+AddToQueue(Partition &partition, Song &song, Error &error)
+{
+	PlaylistResult result =
+		partition.playlist.AppendSong(partition.pc, &song, nullptr);
+	if (result != PlaylistResult::SUCCESS) {
+		error.Set(playlist_domain, int(result), "Playlist error");
+		return false;
+	}
+
+	return true;
+}
+
+bool
+AddFromDatabase(Partition &partition, const DatabaseSelection &selection,
+		Error &error)
+{
+	const Database *db = GetDatabase(error);
+	if (db == nullptr)
+		return false;
+
+	using namespace std::placeholders;
+	const auto f = std::bind(AddToQueue, std::ref(partition), _1, _2);
+	return db->Visit(selection, f, error);
+}
--- a/src/DatabaseQueue.hxx
+++ b/src/DatabaseQueue.hxx
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_DATABASE_QUEUE_HXX
+#define MPD_DATABASE_QUEUE_HXX
+
+struct Partition;
+struct DatabaseSelection;
+class Error;
+
+bool
+AddFromDatabase(Partition &partition, const DatabaseSelection &selection,
+		Error &error);
+
+#endif
--- a/Show More
+++ b/Show More