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Diffstat (limited to 'src/UpdateRemove.cxx')
-rw-r--r-- | src/UpdateRemove.cxx | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/UpdateRemove.cxx b/src/UpdateRemove.cxx new file mode 100644 index 000000000..c88eec42a --- /dev/null +++ b/src/UpdateRemove.cxx @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2003-2011 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 "UpdateRemove.hxx" + +extern "C" { +#include "event_pipe.h" +#include "playlist.h" +} + +#include "song.h" +#include "Main.hxx" + +#ifdef ENABLE_SQLITE +#include "StickerDatabase.hxx" +#include "SongSticker.hxx" +#endif + +#include <glib.h> + +#include <assert.h> + +static const struct song *removed_song; + +static GMutex *remove_mutex; +static GCond *remove_cond; + +/** + * Safely remove a song from the database. This must be done in the + * main task, to be sure that there is no pointer left to it. + */ +static void +song_remove_event(void) +{ + char *uri; + + assert(removed_song != NULL); + + uri = song_get_uri(removed_song); + g_message("removing %s", uri); + g_free(uri); + +#ifdef ENABLE_SQLITE + /* if the song has a sticker, remove it */ + if (sticker_enabled()) + sticker_song_delete(removed_song); +#endif + + playlist_delete_song(&g_playlist, global_player_control, removed_song); + + /* clear "removed_song" and send signal to update thread */ + g_mutex_lock(remove_mutex); + removed_song = NULL; + g_cond_signal(remove_cond); + g_mutex_unlock(remove_mutex); +} + +void +update_remove_global_init(void) +{ + remove_mutex = g_mutex_new(); + remove_cond = g_cond_new(); + + event_pipe_register(PIPE_EVENT_DELETE, song_remove_event); +} + +void +update_remove_global_finish(void) +{ + g_mutex_free(remove_mutex); + g_cond_free(remove_cond); +} + +void +update_remove_song(const struct song *song) +{ + assert(removed_song == NULL); + + removed_song = song; + + event_pipe_emit(PIPE_EVENT_DELETE); + + g_mutex_lock(remove_mutex); + + while (removed_song != NULL) + g_cond_wait(remove_cond, remove_mutex); + + g_mutex_unlock(remove_mutex); +} |