00001 // this is for emacs file handling -*- mode: c++; indent-tabs-mode: nil -*- 00002 00003 // -- BEGIN LICENSE BLOCK ---------------------------------------------- 00004 // This file is part of FZIs ic_workspace. 00005 // 00006 // This program is free software licensed under the LGPL 00007 // (GNU LESSER GENERAL PUBLIC LICENSE Version 3). 00008 // You can find a copy of this license in LICENSE folder in the top 00009 // directory of the source code. 00010 // 00011 // © Copyright 2016 FZI Forschungszentrum Informatik, Karlsruhe, Germany 00012 // 00013 // -- END LICENSE BLOCK ------------------------------------------------ 00014 00015 //---------------------------------------------------------------------- 00021 //---------------------------------------------------------------------- 00022 #include "SemaphoreImplWin32.h" 00023 00024 #include "Common.h" 00025 00026 namespace icl_core { 00027 namespace thread { 00028 00029 SemaphoreImplWin32::SemaphoreImplWin32(size_t initial_value) 00030 : m_semaphore(0) 00031 { 00032 m_semaphore = CreateSemaphore(NULL, LONG(initial_value), LONG_MAX, NULL); 00033 } 00034 00035 SemaphoreImplWin32::~SemaphoreImplWin32() 00036 { 00037 CloseHandle(m_semaphore); 00038 } 00039 00040 void SemaphoreImplWin32::post() 00041 { 00042 ReleaseSemaphore(m_semaphore, 1, NULL); 00043 } 00044 00045 bool SemaphoreImplWin32::tryWait() 00046 { 00047 DWORD res = WaitForSingleObject(m_semaphore, 0); 00048 return res == WAIT_OBJECT_0; 00049 } 00050 00051 bool SemaphoreImplWin32::wait() 00052 { 00053 DWORD res = WaitForSingleObject(m_semaphore, INFINITE); 00054 return res == WAIT_OBJECT_0; 00055 } 00056 00057 bool SemaphoreImplWin32::wait(const TimeSpan& timeout) 00058 { 00059 DWORD res = WaitForSingleObject(m_semaphore, DWORD(timeout.toMSec())); 00060 return res == WAIT_OBJECT_0; 00061 } 00062 00063 bool SemaphoreImplWin32::wait(const TimeStamp& timeout) 00064 { 00065 return wait(impl::getRelativeTimeout(timeout)); 00066 } 00067 00068 } 00069 }