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/*
* 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"
#include "Playlist.hxx"
extern "C" {
#include "event_pipe.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);
}
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