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Semaphore.cpp

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00001 
00006 /*
00007 Copyright (C) 2007  Anders Hedstrom
00008 
00009 This program is free software; you can redistribute it and/or
00010 modify it under the terms of the GNU General Public License
00011 as published by the Free Software Foundation; either version 2
00012 of the License, or (at your option) any later version.
00013 
00014 This program is distributed in the hope that it will be useful,
00015 but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017 GNU General Public License for more details.
00018 
00019 You should have received a copy of the GNU General Public License
00020 along with this program; if not, write to the Free Software
00021 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00022 */
00023 #include "Semaphore.h"
00024 
00025 
00026 #ifdef SOCKETS_NAMESPACE
00027 namespace SOCKETS_NAMESPACE {
00028 #endif
00029 
00030 
00031 Semaphore::Semaphore()
00032 {
00033         sem_init(&m_sem, 0, 0);
00034 }
00035 
00036 
00037 Semaphore::Semaphore(unsigned int start_val)
00038 {
00039         sem_init(&m_sem, 0, start_val);
00040 }
00041 
00042 
00043 Semaphore::~Semaphore()
00044 {
00045         sem_destroy(&m_sem);
00046 }
00047 
00048 
00049 int Semaphore::Post()
00050 {
00051         return sem_post(&m_sem);
00052 }
00053 
00054 
00055 int Semaphore::Wait()
00056 {
00057         return sem_wait(&m_sem);
00058 }
00059 
00060 
00061 int Semaphore::TryWait()
00062 {
00063         return sem_trywait(&m_sem);
00064 }
00065 
00066 
00067 int Semaphore::GetValue(int& i)
00068 {
00069         return sem_getvalue(&m_sem, &i);
00070 }
00071 
00072 
00073 #ifdef SOCKETS_NAMESPACE
00074 } // namespace SOCKETS_NAMESPACE {
00075 #endif
Page, code, and content Copyright (C) 2007 by Anders Hedström
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