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Diffstat (limited to '')
-rw-r--r-- | src/StateFile.hxx | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/StateFile.hxx b/src/StateFile.hxx new file mode 100644 index 000000000..9ec97d518 --- /dev/null +++ b/src/StateFile.hxx @@ -0,0 +1,56 @@ +/* + * 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_STATE_FILE_HXX +#define MPD_STATE_FILE_HXX + +#include "event/TimeoutMonitor.hxx" +#include "fs/Path.hxx" +#include "gcc.h" + +#include <string> + +struct Partition; + +class StateFile final : private TimeoutMonitor { + Path path; + std::string path_utf8; + + Partition &partition; + + /** + * These version numbers determine whether we need to save the state + * file. If nothing has changed, we won't let the hard drive spin up. + */ + unsigned prev_volume_version, prev_output_version, + prev_playlist_version; + +public: + StateFile(Path &&path, const char *path_utf8, + Partition &partition, EventLoop &loop); + + void Read(); + void Write(); + void AutoWrite(); + +private: + virtual bool OnTimeout() override; +}; + +#endif /* STATE_FILE_H */ |