playlist_save: added spl_save_playlist()

src/command.c

@@ -663,7 +663,7 @@ handle_save(struct client *client,
 {
 	enum playlist_result result;
 
-	result = spl_save_queue(argv[1], playlist_get_queue(&g_playlist));
+	result = spl_save_playlist(argv[1], &g_playlist);
 	return print_playlist_result(client, result);
 }
 

src/playlist_save.c

@@ -98,6 +98,12 @@ spl_save_queue(const char *name_utf8, const struct queue *queue)
 }
 
 enum playlist_result
+spl_save_playlist(const char *name_utf8, const struct playlist *playlist)
+{
+	return spl_save_queue(name_utf8, &playlist->queue);
+}
+
+enum playlist_result
 playlist_load_spl(struct playlist *playlist, const char *name_utf8)
 {
 	GPtrArray *list;

src/playlist_save.h

@@ -38,6 +38,12 @@ enum playlist_result
 spl_save_queue(const char *name_utf8, const struct queue *queue);
 
 /**
+ * Saves a playlist object into a stored playlist file.
+ */
+enum playlist_result
+spl_save_playlist(const char *name_utf8, const struct playlist *playlist);
+
+/**
  * Loads a stored playlist file, and append all songs to the global
  * playlist.
  */