From 8cad20585dbbf5987d6649bea9c6b6ba688b7bff Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Tue, 29 Jan 2013 18:51:40 +0100
Subject: playlist/memory: use std::forward_list instead of GSList
---
src/SongPointer.hxx | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
create mode 100644 src/SongPointer.hxx
(limited to 'src/SongPointer.hxx')
diff --git a/src/SongPointer.hxx b/src/SongPointer.hxx
new file mode 100644
index 000000000..c80f96f4d
--- /dev/null
+++ b/src/SongPointer.hxx
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2003-2013 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.
+ */
+
+#ifndef MPD_SONG_POINTER_HXX
+#define MPD_SONG_POINTER_HXX
+
+#include "song.h"
+
+#include <utility>
+
+class SongPointer {
+ struct song *song;
+
+public:
+ explicit SongPointer(struct song *_song)
+ :song(_song) {}
+
+ SongPointer(const SongPointer &) = delete;
+
+ SongPointer(SongPointer &&other):song(other.song) {
+ other.song = nullptr;
+ }
+
+ ~SongPointer() {
+ if (song != nullptr)
+ song_free(song);
+ }
+
+ SongPointer &operator=(const SongPointer &) = delete;
+
+ SongPointer &operator=(SongPointer &&other) {
+ std::swap(song, other.song);
+ return *this;
+ }
+
+ operator const struct song *() const {
+ return song;
+ }
+
+ struct song *Steal() {
+ auto result = song;
+ song = nullptr;
+ return result;
+ }
+};
+
+#endif
--
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