playlist: renamed global "playlist" variable to "g_playlist"

Export the "g_playlist" variable, and pass it to all playlist
functions.  This way, we can split playlist.c easier into separate
parts.  The code which initializes the singleton variable is moved to
playlist_global.c.

1 files changed, 63 insertions, 0 deletions

diff --git a/src/playlist_global.c b/src/playlist_global.c
new file mode 100644
index 000000000..f4c918800
--- /dev/null
+++ b/src/playlist_global.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2003-2009 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ * The manager of the global "struct playlist" instance (g_playlist).
+ *
+ */
+
+#include "playlist.h"
+#include "playlist_state.h"
+#include "event_pipe.h"
+
+struct playlist g_playlist;
+
+static void
+playlist_tag_event(void)
+{
+	playlist_tag_changed(&g_playlist);
+}
+
+static void
+playlist_event(void)
+{
+	syncPlayerAndPlaylist(&g_playlist);
+}
+
+void initPlaylist(void)
+{
+	playlist_init(&g_playlist);
+
+	event_pipe_register(PIPE_EVENT_TAG, playlist_tag_event);
+	event_pipe_register(PIPE_EVENT_PLAYLIST, playlist_event);
+}
+
+void finishPlaylist(void)
+{
+	playlist_finish(&g_playlist);
+}
+
+void savePlaylistState(FILE *fp)
+{
+	playlist_state_save(fp, &g_playlist);
+}
+
+void readPlaylistState(FILE *fp)
+{
+	playlist_state_restore(fp, &g_playlist);
+}