libsaria: Pick next song from the Playlist

Signed-off-by: Bryan Schumaker <bjschuma@gmail.com>

include/libsaria/playlist.h

@@ -25,6 +25,7 @@ namespace libsaria
 			void add_ids(list<sid_t> &);
 			void rm_ids(list<sid_t> &);
 			unsigned int size();
+			sid_t next();
 
 			/* Iterator functions */
 			void iter_reset();

libsaria/playlist/playlist.cpp

@@ -33,4 +33,11 @@ namespace libsaria
 		return plist.size();
 	}
 
+	sid_t Playlist::next()
+	{
+		sid_t id = plist.front();
+		plist.pop_front();
+		return id;
+	}
+
 }

libsaria/queue/queue.cpp

@@ -43,7 +43,7 @@ namespace libsaria
 
 	string queue::next_file()
 	{
-		sid_t inode = playqueue.front();
+		sid_t inode = q_queue.next();
 		playqueue.pop_front();
 		save_and_refresh();
 		return library::find_filepath(inode);