src/notify.h

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #ifndef MPD_NOTIFY_H
  21 #define MPD_NOTIFY_H
  22
  23 #include <glib.h>
  24
  25 #include <stdbool.h>
  26
  27 struct notify {
  28         GMutex *mutex;
  29         GCond *cond;
  30         bool pending;
  31 };
  32
  33 void notify_init(struct notify *notify);
  34
  35 void notify_deinit(struct notify *notify);
  36
  37 /**
  38  * Wait for a notification.  Return immediately if we have already
  39  * been notified since we last returned from notify_wait().
  40  */
  41 void notify_wait(struct notify *notify);
  42
  43 /**
  44  * Notify the thread.  This function never blocks.
  45  */
  46 void notify_signal(struct notify *notify);
  47
  48 #endif