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cppthread.cpp
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112 lines (94 loc) · 2.19 KB
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/**
* @file posix/wait.cpp
* @brief POSIX event/timeout handling
*
* (c) 2013-2014 by Mega Limited, Wellsford, New Zealand
*
* This file is part of the MEGA SDK - Client Access Engine.
*
* Applications using the MEGA API must present a valid application key
* and comply with the the rules set forth in the Terms of Service.
*
* The MEGA SDK 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.
*
* @copyright Simplified (2-clause) BSD License.
*
* You should have received a copy of the license along with this
* program.
*
* This file is also distributed under the terms of the GNU General
* Public License, see http://www.gnu.org/copyleft/gpl.txt for details.
*/
#include "mega/thread/cppthread.h"
#if defined WINDOWS_PHONE || defined USE_CPPTHREAD
#include <ctime>
#include <chrono>
#ifdef _WIN32
#include "windows.h"
#endif
namespace mega {
//thread
CppThread::CppThread()
{
thread = NULL;
}
void CppThread::start(void *(*start_routine)(void*), void *parameter)
{
thread = new std::thread(start_routine, parameter);
}
void CppThread::join()
{
thread->join();
}
unsigned long long CppThread::currentThreadId()
{
#ifdef _WIN32
return (unsigned long long) GetCurrentThreadId();
#else
return (unsigned long long) &errno;
#endif
}
CppThread::~CppThread()
{
delete thread;
}
//semaphore
CppSemaphore::CppSemaphore()
{
count = 0;
}
void CppSemaphore::release()
{
std::unique_lock<std::mutex> lock(mtx);
count++;
cv.notify_one();
}
void CppSemaphore::wait()
{
std::unique_lock<std::mutex> lock(mtx);
cv.wait(lock, [this]{return count > 0;});
count--;
}
int CppSemaphore::timedwait(int milliseconds)
{
std::chrono::system_clock::time_point endTime = std::chrono::system_clock::now()
+ std::chrono::milliseconds(milliseconds);
std::unique_lock<std::mutex> lock(mtx);
while (!count)
{
auto status = cv.wait_until(lock, endTime);
if (status == std::cv_status::timeout)
{
return -1;
}
}
count--;
return 0;
}
CppSemaphore::~CppSemaphore()
{
}
} // namespace
#endif