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 <mach/mach_init.h> 00023 #include <mach/task.h> 00024 00025 #include "SemaphoreImplDarwin.h" 00026 00027 namespace icl_core { 00028 namespace logging { 00029 00030 SemaphoreImplDarwin::SemaphoreImplDarwin(size_t initial_value) 00031 : m_semaphore(0) 00032 { 00033 semaphore_create(mach_task_self(), &m_semaphore, SYNC_POLICY_FIFO, initial_value); 00034 } 00035 00036 SemaphoreImplDarwin::~SemaphoreImplDarwin() 00037 { 00038 semaphore_destroy(mach_task_self(), m_semaphore); 00039 m_semaphore = 0; 00040 } 00041 00042 void SemaphoreImplDarwin::post() 00043 { 00044 semaphore_signal(m_semaphore); 00045 } 00046 00047 bool SemaphoreImplDarwin::wait() 00048 { 00049 kern_return_t res = semaphore_wait(m_semaphore); 00050 return (res == KERN_SUCCESS); 00051 } 00052 00053 } 00054 }