54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
/*
|
|
* 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_NOTIFY_HXX
|
|
#define MPD_NOTIFY_HXX
|
|
|
|
#include "thread/Mutex.hxx"
|
|
#include "thread/Cond.hxx"
|
|
|
|
struct notify {
|
|
Mutex mutex;
|
|
Cond cond;
|
|
bool pending;
|
|
|
|
#if !defined(WIN32) && !defined(__NetBSD__)
|
|
constexpr
|
|
#endif
|
|
notify():pending(false) {}
|
|
|
|
/**
|
|
* Wait for a notification. Return immediately if we have already
|
|
* been notified since we last returned from notify_wait().
|
|
*/
|
|
void Wait();
|
|
|
|
/**
|
|
* Notify the thread. This function never blocks.
|
|
*/
|
|
void Signal();
|
|
|
|
/**
|
|
* Clears a pending notification.
|
|
*/
|
|
void Clear();
|
|
};
|
|
|
|
#endif
|