1 files changed, 109 insertions, 0 deletions
diff --git a/src/UpdateRemove.cxx b/src/UpdateRemove.cxx
new file mode 100644
index 000000000..c1a0cd32b
--- /dev/null
+++ b/src/UpdateRemove.cxx
@@ -0,0 +1,109 @@
+/*
+ * 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"
+#include "Partition.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(&global_partition->playlist,
+			     &global_partition->pc,
+			     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);
+}