56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
/*! \file pithreadnotifier.h
|
|
* \ingroup Thread
|
|
* \~\brief
|
|
* \~english Class for simple notify and wait in different threads
|
|
* \~russian Класс для простого уведомления и ожидания в различных потоках
|
|
*/
|
|
/*
|
|
PIP - Platform Independent Primitives
|
|
Class for simply notify and wait in different threads
|
|
Andrey Bychkov work.a.b@yandex.ru
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef PITHREADNOTIFIER_H
|
|
#define PITHREADNOTIFIER_H
|
|
|
|
#include "piconditionvar.h"
|
|
|
|
|
|
class PIP_EXPORT PIThreadNotifier {
|
|
public:
|
|
PIThreadNotifier();
|
|
|
|
//! Start waiting, return if other thread call \a notifyOnce().
|
|
//! If \a notifyOnce() has been called before, then returns immediately.
|
|
//! If notifyOnce() has been called "n" times, then returns immediately "n" times,
|
|
//! but only if wait in one thread.
|
|
//! If many threads waiting, then If notifyOnce() has been called "n" times,
|
|
//! All threads total returns "n" times in random sequence.
|
|
void wait();
|
|
|
|
//! Notify one waiting thread, wich waiting on \a wait() function.
|
|
//! If many threads waiting, then notify randomly one.
|
|
//! If call this "n" times, then notify any waiting threads totally "n" times.
|
|
void notifyOnce();
|
|
|
|
private:
|
|
ullong cnt;
|
|
PIMutex m;
|
|
PIConditionVariable v;
|
|
};
|
|
|
|
#endif // PITHREADNOTIFIER_H
|