mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-22 14:22:23 +00:00
98 lines
2.3 KiB
C++
98 lines
2.3 KiB
C++
/*
|
|
* ZeroTier One - Network Virtualization Everywhere
|
|
* Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
|
|
*
|
|
* 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 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef ZT_BINARYSEMAPHORE_HPP
|
|
#define ZT_BINARYSEMAPHORE_HPP
|
|
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "Constants.hpp"
|
|
#include "NonCopyable.hpp"
|
|
|
|
#ifdef __WINDOWS__
|
|
|
|
#include <Windows.h>
|
|
|
|
namespace ZeroTier {
|
|
|
|
class BinarySemaphore : NonCopyable
|
|
{
|
|
public:
|
|
BinarySemaphore() throw() { _sem = CreateSemaphore(NULL,0,1,NULL); }
|
|
~BinarySemaphore() { CloseHandle(_sem); }
|
|
inline void wait() { WaitForSingleObject(_sem,INFINITE); }
|
|
inline void post() { ReleaseSemaphore(_sem,1,NULL); }
|
|
private:
|
|
HANDLE _sem;
|
|
};
|
|
|
|
} // namespace ZeroTier
|
|
|
|
#else // !__WINDOWS__
|
|
|
|
#include <pthread.h>
|
|
|
|
namespace ZeroTier {
|
|
|
|
class BinarySemaphore : NonCopyable
|
|
{
|
|
public:
|
|
BinarySemaphore()
|
|
{
|
|
pthread_mutex_init(&_mh,(const pthread_mutexattr_t *)0);
|
|
pthread_cond_init(&_cond,(const pthread_condattr_t *)0);
|
|
_f = false;
|
|
}
|
|
|
|
~BinarySemaphore()
|
|
{
|
|
pthread_cond_destroy(&_cond);
|
|
pthread_mutex_destroy(&_mh);
|
|
}
|
|
|
|
inline void wait()
|
|
{
|
|
pthread_mutex_lock(const_cast <pthread_mutex_t *>(&_mh));
|
|
while (!_f)
|
|
pthread_cond_wait(const_cast <pthread_cond_t *>(&_cond),const_cast <pthread_mutex_t *>(&_mh));
|
|
_f = false;
|
|
pthread_mutex_unlock(const_cast <pthread_mutex_t *>(&_mh));
|
|
}
|
|
|
|
inline void post()
|
|
{
|
|
pthread_mutex_lock(const_cast <pthread_mutex_t *>(&_mh));
|
|
_f = true;
|
|
pthread_mutex_unlock(const_cast <pthread_mutex_t *>(&_mh));
|
|
pthread_cond_signal(const_cast <pthread_cond_t *>(&_cond));
|
|
}
|
|
|
|
private:
|
|
pthread_cond_t _cond;
|
|
pthread_mutex_t _mh;
|
|
volatile bool _f;
|
|
};
|
|
|
|
} // namespace ZeroTier
|
|
|
|
#endif // !__WINDOWS__
|
|
|
|
#endif
|