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Diffstat (limited to 'src/queue/QueueSave.cxx')
-rw-r--r-- | src/queue/QueueSave.cxx | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/queue/QueueSave.cxx b/src/queue/QueueSave.cxx new file mode 100644 index 000000000..28fc361d7 --- /dev/null +++ b/src/queue/QueueSave.cxx @@ -0,0 +1,119 @@ +/* + * Copyright (C) 2003-2014 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 "QueueSave.hxx" +#include "Queue.hxx" +#include "PlaylistError.hxx" +#include "DetachedSong.hxx" +#include "SongSave.hxx" +#include "SongLoader.hxx" +#include "playlist/PlaylistSong.hxx" +#include "fs/TextFile.hxx" +#include "util/StringUtil.hxx" +#include "util/Error.hxx" +#include "fs/Traits.hxx" +#include "Log.hxx" + +#include <stdlib.h> + +#define PRIO_LABEL "Prio: " + +static void +queue_save_database_song(FILE *fp, int idx, const DetachedSong &song) +{ + fprintf(fp, "%i:%s\n", idx, song.GetURI()); +} + +static void +queue_save_full_song(FILE *fp, const DetachedSong &song) +{ + song_save(fp, song); +} + +static void +queue_save_song(FILE *fp, int idx, const DetachedSong &song) +{ + if (song.IsInDatabase()) + queue_save_database_song(fp, idx, song); + else + queue_save_full_song(fp, song); +} + +void +queue_save(FILE *fp, const Queue &queue) +{ + for (unsigned i = 0; i < queue.GetLength(); i++) { + uint8_t prio = queue.GetPriorityAtPosition(i); + if (prio != 0) + fprintf(fp, PRIO_LABEL "%u\n", prio); + + queue_save_song(fp, i, queue.Get(i)); + } +} + +void +queue_load_song(TextFile &file, const SongLoader &loader, + const char *line, Queue &queue) +{ + if (queue.IsFull()) + return; + + uint8_t priority = 0; + if (StringStartsWith(line, PRIO_LABEL)) { + priority = strtoul(line + sizeof(PRIO_LABEL) - 1, nullptr, 10); + + line = file.ReadLine(); + if (line == nullptr) + return; + } + + DetachedSong *song; + + if (StringStartsWith(line, SONG_BEGIN)) { + const char *uri = line + sizeof(SONG_BEGIN) - 1; + + Error error; + song = song_load(file, uri, error); + if (song == nullptr) { + LogError(error); + return; + } + } else { + char *endptr; + long ret = strtol(line, &endptr, 10); + if (ret < 0 || *endptr != ':' || endptr[1] == 0) { + LogError(playlist_domain, + "Malformed playlist line in state file"); + return; + } + + const char *uri = endptr + 1; + + song = new DetachedSong(uri); + } + + if (!playlist_check_translate_song(*song, nullptr, loader)) { + delete song; + return; + } + + queue.Append(std::move(*song), priority); + delete song; +} |