playlist/{asx,rss,soundcloud,xspf}: merge code to MemoryPlaylistProvider

1 files changed, 84 insertions, 0 deletions

diff --git a/src/playlist/MemoryPlaylistProvider.cxx b/src/playlist/MemoryPlaylistProvider.cxx
new file mode 100644
index 000000000..b643ec50c
--- /dev/null
+++ b/src/playlist/MemoryPlaylistProvider.cxx
@@ -0,0 +1,84 @@
+/*
+ * 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.
+ */
+
+#include "config.h"
+#include "MemoryPlaylistProvider.hxx"
+#include "song.h"
+
+static void
+memory_playlist_close(struct playlist_provider *_playlist)
+{
+	MemoryPlaylistProvider *playlist = (MemoryPlaylistProvider *)_playlist;
+
+	delete playlist;
+}
+
+static struct song *
+memory_playlist_read(struct playlist_provider *_playlist)
+{
+	MemoryPlaylistProvider *playlist = (MemoryPlaylistProvider *)_playlist;
+
+	return playlist->Read();
+}
+
+static constexpr struct playlist_plugin memory_playlist_plugin = {
+	nullptr,
+
+	nullptr,
+	nullptr,
+	nullptr,
+	nullptr,
+	memory_playlist_close,
+	memory_playlist_read,
+
+	nullptr,
+	nullptr,
+	nullptr,
+};
+
+MemoryPlaylistProvider::MemoryPlaylistProvider(GSList *_songs)
+	:songs(_songs) {
+	playlist_provider_init(this, &memory_playlist_plugin);
+}
+
+static void
+song_free_callback(gpointer data, G_GNUC_UNUSED gpointer user_data)
+{
+	struct song *song = (struct song *)data;
+
+	song_free(song);
+}
+
+MemoryPlaylistProvider::~MemoryPlaylistProvider()
+{
+	g_slist_foreach(songs, song_free_callback, NULL);
+	g_slist_free(songs);
+}
+
+inline song *
+MemoryPlaylistProvider::Read()
+{
+	if (songs == nullptr)
+		return nullptr;
+
+	song *result = (song *)songs->data;
+	songs = g_slist_remove(songs, result);
+	return result;
+}
+