1 files changed, 69 insertions, 0 deletions
diff --git a/src/EventPipe.hxx b/src/EventPipe.hxx
new file mode 100644
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--- /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 */