From 84ba14fa294f43b5dc75f899533d0596031aabd6 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Tue, 24 Jan 2012 21:33:09 +0100
Subject: directory: replace songvec with doubly linked list

---
 src/song.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/song.h')

diff --git a/src/song.h b/src/song.h
index 9553c76c4..95cc2eb86 100644
--- a/src/song.h
+++ b/src/song.h
@@ -20,6 +20,8 @@
 #ifndef MPD_SONG_H
 #define MPD_SONG_H
 
+#include "util/list.h"
+
 #include <stddef.h>
 #include <stdbool.h>
 #include <sys/time.h>
@@ -28,6 +30,16 @@
 #define SONG_TIME	"Time: "
 
 struct song {
+	/**
+	 * Pointers to the siblings of this directory within the
+	 * parent directory.  It is unused (undefined) if this song is
+	 * not in the database.
+	 *
+	 * This attribute is protected with the global #db_mutex.
+	 * Read access in the update thread does not need protection.
+	 */
+	struct list_head siblings;
+
 	struct tag *tag;
 	struct directory *parent;
 	time_t mtime;
-- 
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