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Diffstat (limited to 'src/EventPipe.hxx')
-rw-r--r-- | src/EventPipe.hxx | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/EventPipe.hxx b/src/EventPipe.hxx new file mode 100644 index 000000000..f7a0c30f3 --- /dev/null +++ b/src/EventPipe.hxx @@ -0,0 +1,69 @@ +/* + * 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_EVENT_PIPE_HXX +#define MPD_EVENT_PIPE_HXX + +enum pipe_event { + /** database update was finished */ + PIPE_EVENT_UPDATE, + + /** during database update, a song was deleted */ + PIPE_EVENT_DELETE, + + /** an idle event was emitted */ + PIPE_EVENT_IDLE, + + /** must call playlist_sync() */ + PIPE_EVENT_PLAYLIST, + + /** the current song's tag has changed */ + PIPE_EVENT_TAG, + + /** SIGHUP received: reload configuration, roll log file */ + PIPE_EVENT_RELOAD, + + /** a hardware mixer plugin has detected a change */ + PIPE_EVENT_MIXER, + + /** shutdown requested */ + PIPE_EVENT_SHUTDOWN, + + PIPE_EVENT_MAX +}; + +typedef void (*event_pipe_callback_t)(void); + +void event_pipe_init(void); + +void event_pipe_deinit(void); + +void +event_pipe_register(enum pipe_event event, event_pipe_callback_t callback); + +void event_pipe_emit(enum pipe_event event); + +/** + * Similar to event_pipe_emit(), but aimed for use in signal handlers: + * it doesn't lock the mutex, and doesn't log on error. That makes it + * potentially lossy, but for its intended use, that does not matter. + */ +void event_pipe_emit_fast(enum pipe_event event); + +#endif /* MAIN_NOTIFY_H */ |