51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2008 Max Kellermann <max@duempel.org>
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef NOTIFY_H
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#define NOTIFY_H
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#include "os_compat.h"
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struct notify {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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int pending;
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};
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#define NOTIFY_INITIALIZER { \
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.mutex = PTHREAD_MUTEX_INITIALIZER, \
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.cond = PTHREAD_COND_INITIALIZER, \
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}
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void notify_init(struct notify *notify);
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void notify_deinit(struct notify *notify);
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/**
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* Wait for a notification. Return immediately if we have already
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* been notified since we last returned from notify_wait().
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*/
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void notify_wait(struct notify *notify);
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/**
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* Notify the thread. This function never blocks.
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*/
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void notify_signal(struct notify *notify);
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#endif
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