mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-19 13:07:55 +00:00
142 lines
3.0 KiB
C++
142 lines
3.0 KiB
C++
/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2012-2013 ZeroTier Networks LLC
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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 3 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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#ifndef _ZT_CONDITION_HPP
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#define _ZT_CONDITION_HPP
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#include "Constants.hpp"
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#include "NonCopyable.hpp"
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#ifdef __WINDOWS__
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#include <Windows.h>
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#include <stdlib.h>
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#include "Utils.hpp"
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namespace ZeroTier {
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class Condition : NonCopyable
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{
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public:
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Condition()
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throw()
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{
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_sem = CreateSemaphore(NULL,0,1,NULL);
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}
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~Condition()
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{
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CloseHandle(_sem);
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}
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inline void wait() const
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throw()
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{
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WaitForSingleObject(_sem,INFINITE);
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}
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inline void wait(unsigned long ms) const
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throw()
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{
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WaitForSingleObject(_sem,(DWORD)ms);
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}
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inline void signal() const
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throw()
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{
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ReleaseSemaphore(_sem,1,NULL);
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}
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private:
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HANDLE _sem;
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};
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} // namespace ZeroTier
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#else // !__WINDOWS__
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#include <time.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include "Utils.hpp"
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namespace ZeroTier {
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class Condition : NonCopyable
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{
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public:
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Condition()
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throw()
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{
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pthread_mutex_init(&_mh,(const pthread_mutexattr_t *)0);
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pthread_cond_init(&_cond,(const pthread_condattr_t *)0);
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}
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~Condition()
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{
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pthread_cond_destroy(&_cond);
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pthread_mutex_destroy(&_mh);
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}
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inline void wait() const
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throw()
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{
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pthread_mutex_lock(const_cast <pthread_mutex_t *>(&_mh));
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pthread_cond_wait(const_cast <pthread_cond_t *>(&_cond),const_cast <pthread_mutex_t *>(&_mh));
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pthread_mutex_unlock(const_cast <pthread_mutex_t *>(&_mh));
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}
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inline void wait(unsigned long ms) const
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throw()
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{
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uint64_t when = Utils::now() + (uint64_t)ms;
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struct timespec ts;
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ts.tv_sec = (unsigned long)(when / 1000);
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ts.tv_nsec = (unsigned long)(when % 1000) * 1000000;
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pthread_mutex_lock(const_cast <pthread_mutex_t *>(&_mh));
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pthread_cond_timedwait(const_cast <pthread_cond_t *>(&_cond),const_cast <pthread_mutex_t *>(&_mh),&ts);
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pthread_mutex_unlock(const_cast <pthread_mutex_t *>(&_mh));
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}
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inline void signal() const
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throw()
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{
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pthread_cond_signal(const_cast <pthread_cond_t *>(&_cond));
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}
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private:
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pthread_cond_t _cond;
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pthread_mutex_t _mh;
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};
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} // namespace ZeroTier
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#endif // !__WINDOWS__
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#endif
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