103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/*
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* Copyright (C) 2003-2011 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h" /* must be first for large file support */
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#include "update_internal.h"
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#include "event_pipe.h"
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#include "song.h"
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#include "playlist.h"
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#include "main.h"
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#ifdef ENABLE_SQLITE
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#include "sticker.h"
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#include "song_sticker.h"
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#endif
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#include <glib.h>
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#include <assert.h>
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static const struct song *removed_song;
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static GMutex *remove_mutex;
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static GCond *remove_cond;
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/**
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* Safely remove a song from the database. This must be done in the
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* main task, to be sure that there is no pointer left to it.
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*/
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static void
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song_remove_event(void)
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{
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char *uri;
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assert(removed_song != NULL);
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uri = song_get_uri(removed_song);
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g_debug("removing: %s", uri);
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g_free(uri);
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#ifdef ENABLE_SQLITE
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/* if the song has a sticker, remove it */
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if (sticker_enabled())
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sticker_song_delete(removed_song);
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#endif
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playlist_delete_song(&g_playlist, global_player_control, removed_song);
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/* clear "removed_song" and send signal to update thread */
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g_mutex_lock(remove_mutex);
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removed_song = NULL;
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g_cond_signal(remove_cond);
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g_mutex_unlock(remove_mutex);
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}
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void
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update_remove_global_init(void)
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{
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remove_mutex = g_mutex_new();
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remove_cond = g_cond_new();
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event_pipe_register(PIPE_EVENT_DELETE, song_remove_event);
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}
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void
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update_remove_global_finish(void)
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{
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g_mutex_free(remove_mutex);
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g_cond_free(remove_cond);
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}
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void
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update_remove_song(const struct song *song)
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{
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assert(removed_song == NULL);
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removed_song = song;
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event_pipe_emit(PIPE_EVENT_DELETE);
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g_mutex_lock(remove_mutex);
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while (removed_song != NULL)
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g_cond_wait(remove_cond, remove_mutex);
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g_mutex_unlock(remove_mutex);
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}
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