Commit Graph

95 Commits

Author SHA1 Message Date
Max Kellermann
95b3430f52 removed os_compat.h
Only include headers which are really needed.  os_compat.h aimed to
make MPD easily portable, but was never actually made portable.
2008-12-29 17:28:32 +01:00
Viliam Mateicka
455b39fa26 song: adding support for songs in archives 2008-12-16 21:42:42 +01:00
Max Kellermann
5036368f54 decoder: return const decoder_plugin structs
The decoder_plugin structs must never change.  Don't work with
non-const pointers.
2008-11-01 14:51:41 +01:00
Max Kellermann
a5f8d4386c update: check return values
Nearly all mapper functions can fail and will then return NULL.  Add
checks to all callers.
2008-10-31 16:47:21 +01:00
Max Kellermann
f1ab4d2c1b song: check file type in song_file_update()
Don't load non-regular files.
2008-10-15 22:43:24 +02:00
Max Kellermann
8c0060fae4 playlist: added support for adding songs not in the music database
Clients which have authenticated via unix socket may add local files
to the MPD playlist, provided that they own the file.
2008-10-15 22:35:13 +02:00
Max Kellermann
5b71d5f6f7 mapper: new song-to-filesystem mapper library
The mapper library maps directory and song objects to file system
paths.  With this central library, the code mixture in path.c should
be cleaned up, and we will be able to add neat features like aliasing.
2008-10-14 11:10:49 +02:00
Max Kellermann
308bc230b2 song: pass const song pointer to song_get_url()
song_get_url() doesn't modify the song object.
2008-10-14 11:10:44 +02:00
Max Kellermann
f71ac4d479 song: stat file in song_file_update(), don't use isMusic()
isMusic() used to be a very inefficient function: with every
invocation, it did another stat() on the specified file.  There is
only one caller, do the stat() there manually and use hasMusicSuffix()
instead of isMusic().
2008-10-13 16:56:00 +02:00
Eric Wong
c641aabe33 song: song_get_url: fix "/" prefix for songs in music_root 2008-10-13 09:39:02 +02:00
Max Kellermann
68977af6e0 directory: eliminate CamelCase
CamelCase is ugly, rename the functions.
2008-10-08 11:07:58 +02:00
Max Kellermann
e1a4474ad4 song: don't allow calling song_get_url(NULL)
The runtime check suggests that the author has somehow thought
song_get_url(NULL) might be valid.  It should not be.  Replace it with
an assertion.
2008-10-08 11:06:37 +02:00
Max Kellermann
4ab6b59aaf song: use song_file_update() in song_file_load()
Eliminate duplicated code.
2008-10-08 11:06:27 +02:00
Max Kellermann
02e8c000d1 song: song_file_update() returns bool
Instead of returning 0 or -1, return true on success and false on
failure.  This seems more natural, and when the C library was
designed, there was no "bool" data type.
2008-10-08 11:06:26 +02:00
Max Kellermann
1f9b614850 song: don't check song_is_file() in song_file_update()
This function was never used on remote songs.  Replace the runtime
check with an assertion.
2008-10-08 11:05:38 +02:00
Max Kellermann
5e7b18f874 song: removed CamelCase
CamelCase is ugly...  rename all functions.
2008-10-08 11:05:34 +02:00
Max Kellermann
5e4be9e495 song: replaced all song constructors
Provide separate constructors for creating a remote song, a local
song, and one for loading data from a song file.  This way, we can add
more assertions.
2008-10-08 11:05:25 +02:00
Max Kellermann
71351160b1 don't include os_compat.h
When there are standardized headers, use these instead of the bloated
os_compat.h.
2008-10-08 10:49:29 +02:00
Max Kellermann
d562ba5fbb song: converted typedef Song to struct song
Again, a data type which can be forward-declared.
2008-10-08 10:49:11 +02:00
Max Kellermann
25f67da58c directory: converted typedef Directory to struct directory
The struct can be forward-declared by other headers, which relaxes the
header dependencies.
2008-10-08 10:49:05 +02:00
Eric Wong
7d8c9cc7e3 directory: serialize song deletes from playlist during update
This makes the update code thread-safe and doesn't penalize
the playlist code by complicating it with complicated and
error-prone locks (and the associated overhead, not everybody
has a thread-implementation as good as NPTL).

The update task blocks during the delete; but the update task is
a slow task anyways so we can block w/o people caring too much.

This was also our only freeSong call site, so remove that
function.

Note that deleting entire directories is not fully thread-safe,
yet; as their traversals are not yet locked.
2008-10-07 22:11:16 +02:00
Eric Wong
0d34815f6c Assert if we don't have song or song->url set
song objects cannot exist without a path or URL
2008-10-07 21:20:34 +02:00
Eric Wong
f1c53fe0ed song: stop storing song_type
We already know if a song is a URL or not based on whether it
has parentDir defined or not.  Hopefully one day in the future
we can drop HTTP support from MPD entirely when an HTTP
filesystem comes along and we can access streams via open(2).
2008-10-06 18:52:13 +02:00
Max Kellermann
22e40b61cc song: don't make the struct packed
The "packed" attribute may have negative side effects on performance.
Remove the "packed" attribute, and increase the size of "song.url" to
a multiple of the machine word size.
2008-10-06 18:48:45 +02:00
Eric Wong
267b2cd6e6 song: use flex arrays to store song->url
Reduce the number of allocations we make, so there's less
pressure on the allocator and less overhead to keep track
of the allocations in.
2008-10-06 18:46:52 +02:00
Eric Wong
43761441c9 song: get rid of newNullSong()
It didn't save us any lines of code nor did it do anything
useful since we would overwrite everything anyways.
2008-10-06 18:43:10 +02:00
Eric Wong
dc245f389c song: call freeJustSong if newSong fails
There's no reason to scan the playlist for a song we
just allocated.
2008-10-06 18:41:41 +02:00
Max Kellermann
21d3d300fd decoder: renamed plugin methods
Why have a "_func" prefix on all method names?  Also don't typedef the
methods, there is no advantage in that.
2008-09-29 15:54:27 +02:00
Max Kellermann
35d519625d song: converted "type" to enum
Having an enum type is much nicer than an anonymous integer plus CPP
macros.  Note that the old code didn't save any space by declaring the
variable 8 bit, due to padding.
2008-09-29 15:52:30 +02:00
Max Kellermann
323e86489f song: removed type SongList
SongList has been superseded by struct songvec.
2008-09-26 09:54:25 +02:00
Eric Wong
0bec1d3807 Replace SongList with struct songvec
Our linked-list implementation is wasteful and the
SongList isn't modified enough to benefit from being a linked
list.  So use a more compact array of song pointers which
saves ~200K on a library with ~9K songs (on x86-32).
2008-09-23 20:48:39 +02:00
Max Kellermann
75aa8dad4c song: moved code to song_print.c, song_save.c
Move everything which dumps song information (via tag_print.c) to a
separate source file.  song_print.c gets code which writes song data
to the client; song_save.c is responsible for serializing songs from
the tag cache.
2008-09-07 13:35:01 +02:00
Max Kellermann
386c303121 tag: moved code to tag_print.c
Move everything which dumps a tag to a file descriptor to tag_print.c.
This relaxes dependencies and splits the code into smaller parts.
2008-09-07 13:28:01 +02:00
Eric Wong
092bdf3d32 tag: fix segfault on update
clearMpdTag could be called on a tag that was still in a
tag_begin_add transaction before tag_end_add is called.  This
was causing free() to attempt to operate on bulk.items; which is
un-free()-able.  Now instead we unmark the bulk.busy to avoid
committing the tags to the heap only to be immediately freed.

Additionally, we need to remember to call tag_end_add() when
a song is updated before we NULL song->tag to avoid tripping
an assertion the next time tag_begin_add() is called.
2008-09-06 15:31:55 +02:00
Max Kellermann
1aa3457346 tag: try not to reallocate tag.items in every add() call
If many tag_items are added at once while the tag cache is being
loaded, manage these items in a static fixed list, instead of
reallocating the list with every newly created item.  This reduces
heap fragmentation.

Massif results again:

 mk before:  total 12,837,632; useful 10,626,383; extra 2,211,249
 mk now:     total 12,736,720; useful 10,626,383; extra 2,110,337

The "useful" value is the same since this patch only changes the way
we allocate the same amount of memory, but heap fragmentation was
reduced by 5%.
2008-08-29 09:39:08 +02:00
Max Kellermann
031522060a song: don't export newNullSong()
The function newNullSong() is only used internally in song.c.
2008-08-29 09:39:07 +02:00
Max Kellermann
91502cd71e tag: renamed functions, no CamelCase 2008-08-29 09:38:21 +02:00
Max Kellermann
df251a9960 assert song->url != NULL 2008-08-26 08:27:11 +02:00
Max Kellermann
772d3da98a no camel case in struct decoder_plugin 2008-08-26 08:27:08 +02:00
Max Kellermann
41c5fbbb07 renamed inputPlugin.* to decoder_list.*
Since inputPlugin.c manages the list of registered decoders, we should
rename the source file.
2008-08-26 08:27:08 +02:00
Max Kellermann
e41be362a1 renamed InputPlugin to struct decoder_plugin
"decoder plugin" is a better name than "input plugin", since the
plugin does not actually do the input - InputStream does.  Also don't
use typedef, so we can forward-declare it if required.
2008-08-26 08:27:08 +02:00
Max Kellermann
c5e1bc39e9 fix segmentation fault in song info parser
The database parser does not check whether the song object has been
initialized yet, which may lead to a NULL pointer dereference.  Add
this check.

git-svn-id: https://svn.musicpd.org/mpd/trunk@7201 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-03-26 10:37:44 +00:00
Max Kellermann
c5b524e376 eliminated duplicate initialization
Local variables which are never read before the first assignment don't
need initialization.  Saves a few bytes of text.  Also don't reset
variables which are never read until function return.

git-svn-id: https://svn.musicpd.org/mpd/trunk@7199 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-03-26 10:37:36 +00:00
Max Kellermann
6fbdc721d9 fix -Wconst warnings
[ew: cleaned up the dirty union hack a bit]
Signed-off-by: Eric Wong <normalperson@yhbt.net>

git-svn-id: https://svn.musicpd.org/mpd/trunk@7180 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-02-05 10:17:33 +00:00
Eric Wong
cb8f1af3bd Cleanup #includes of standard system headers and put them in one place
This will make refactoring features easier, especially now that
pthreads support and larger refactorings are on the horizon.

Hopefully, this will make porting to other platforms (even
non-UNIX-like ones for masochists) easier, too.

os_compat.h will house all the #includes for system headers
considered to be the "core" of MPD.  Headers for optional
features will be left to individual source files.

git-svn-id: https://svn.musicpd.org/mpd/trunk@7130 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-01-03 07:29:49 +00:00
Eric Wong
00e0224996 song: updateSongInfo: left out charset conversion when going thread-safe
git-svn-id: https://svn.musicpd.org/mpd/trunk@7124 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-01-01 10:10:08 +00:00
Eric Wong
b79f6b882a Merge branches/ew r7104
thread-safety work in preparation for rewrite to use pthreads

Expect no regressions against trunk (r7078), possibly minor
performance improvements in update (due to fewer heap
allocations), but increased stack usage.

Applied the following patches:

* maxpath_str for reentrancy (temporary fix, reverted)
* path: start working on thread-safe variants of these methods
* Re-entrancy work on path/character-set conversions
* directory.c: exploreDirectory() use reentrant functions here
* directory/update: more use of reentrant functions + cleanups
* string_toupper: a strdup-less version of strDupToUpper
* get_song_url: a static-variable-free version of getSongUrl()
* Use reentrant/thread-safe get_song_url everywhere
* replace rmp2amp with the reentrant version, rmp2amp_r
* Get rid of the non-reentrant/non-thread-safe rpp2app, too.
* buffer2array: assert strdup() returns a usable value in unit tests
* replace utf8ToFsCharset and fsCharsetToUtf8 with thread-safe variants
* fix storing playlists w/o absolute paths
* parent_path(), a reentrant version of parentPath()
* parentPath => parent_path for reentrancy and thread-safety
* allow "make test" to automatically run embedded unit tests
* remove convStrDup() and maxpath_str()
* use MPD_PATH_MAX everywhere instead of MAXPATHLEN
* path: get rid of appendSlash, pfx_path and just use pfx_dir
* get_song_url: fix the ability to play songs in the top-level music_directory

git-svn-id: https://svn.musicpd.org/mpd/trunk@7106 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2007-12-28 02:56:25 +00:00
J. Alexander Treuman
bba444524e Changing all calls to ERROR() followed by exit(EXIT_FAILURE) with a single
call to FATAL().

git-svn-id: https://svn.musicpd.org/mpd/trunk@6276 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2007-05-26 18:15:54 +00:00
Avuton Olrich
a061da8fb5 The massive copyright update
git-svn-id: https://svn.musicpd.org/mpd/trunk@5834 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2007-04-05 03:22:33 +00:00
Eric Wong
b443363aa6 Don't initialize globals to zero (or NULL)
Some compilers and linkers aren't smart enough to optimize this,
as global variables are implictly initialized to zero.  As a
result, binaries are a bit smaller as more goes in the .bss and
less in the text section.

git-svn-id: https://svn.musicpd.org/mpd/trunk@5254 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2007-01-14 03:07:53 +00:00