db_error: convert to C++

Makefile.am

@@ -123,7 +123,7 @@ src_mpd_SOURCES = \
 	src/DatabasePrint.cxx src/DatabasePrint.hxx \
 	src/DatabaseQueue.cxx src/DatabaseQueue.hxx \
 	src/DatabasePlaylist.cxx src/DatabasePlaylist.hxx \
-	src/db_error.h \
+	src/DatabaseError.hxx \
 	src/DatabaseLock.cxx src/DatabaseLock.hxx \
 	src/DatabaseSave.cxx src/DatabaseSave.hxx \
 	src/DatabasePlugin.hxx \

src/CommandError.cxx

@@ -19,7 +19,7 @@
 
 #include "config.h"
 #include "CommandError.hxx"
-#include "db_error.h"
+#include "DatabaseError.hxx"
 #include "io_error.h"
 #include "protocol/Result.hxx"
 

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
@@ -17,8 +17,8 @@
  * 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 "gcc.h"
 

src/DatabaseGlue.cxx

@@ -22,11 +22,11 @@
 #include "DatabaseSimple.hxx"
 #include "DatabaseRegistry.hxx"
 #include "DatabaseSave.hxx"
+#include "DatabaseError.hxx"
 #include "Directory.hxx"
 #include "conf.h"
 
 extern "C" {
-#include "db_error.h"
 #include "stats.h"
 }
 

src/db/ProxyDatabasePlugin.cxx

@@ -21,6 +21,7 @@
 #include "ProxyDatabasePlugin.hxx"
 #include "DatabasePlugin.hxx"
 #include "DatabaseSelection.hxx"
+#include "DatabaseError.hxx"
 #include "PlaylistVector.hxx"
 #include "Directory.hxx"
 #include "Song.hxx"
@@ -28,10 +29,6 @@
 #include "conf.h"
 #include "Tag.hxx"
 
-extern "C" {
-#include "db_error.h"
-}
-
 #undef MPD_DIRECTORY_H
 #undef MPD_SONG_H
 #include <mpd/client.h>

src/db/SimpleDatabasePlugin.cxx

@@ -25,7 +25,7 @@
 #include "SongFilter.hxx"
 #include "DatabaseSave.hxx"
 #include "DatabaseLock.hxx"
-#include "db_error.h"
+#include "DatabaseError.hxx"
 #include "TextFile.hxx"
 #include "conf.h"
 #include "fs/FileSystem.hxx"