C++ Sockets Library

00001 
00006 /*
00007 Copyright (C) 2007-2011  Anders Hedstrom
00008 
00009 This library is made available under the terms of the GNU GPL, with
00010 the additional exemption that compiling, linking, and/or using OpenSSL 
00011 is allowed.
00012 
00013 If you would like to use this library in a closed-source application,
00014 a separate license agreement is available. For information about 
00015 the closed-source license agreement for the C++ sockets library,
00016 please visit http://www.alhem.net/Sockets/license.html and/or
00017 email license@alhem.net.
00018 
00019 This program is free software; you can redistribute it and/or
00020 modify it under the terms of the GNU General Public License
00021 as published by the Free Software Foundation; either version 2
00022 of the License, or (at your option) any later version.
00023 
00024 This program is distributed in the hope that it will be useful,
00025 but WITHOUT ANY WARRANTY; without even the implied warranty of
00026 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00027 GNU General Public License for more details.
00028 
00029 You should have received a copy of the GNU General Public License
00030 along with this program; if not, write to the Free Software
00031 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00032 */
00033 #ifndef _SOCKETS_Semaphore_H
00034 #define _SOCKETS_Semaphore_H
00035 
00036 #include "sockets-config.h"
00037 #ifdef _WIN32
00038 #include "socket_include.h"
00039 #include <windows.h>
00040 #else
00041 #include <pthread.h>
00042 #ifdef MACOSX
00043 #include <sys/semaphore.h>
00044 #else
00045 #include <semaphore.h>
00046 #endif
00047 #endif
00048 
00049 
00050 #ifdef SOCKETS_NAMESPACE
00051 namespace SOCKETS_NAMESPACE {
00052 #endif
00053 
00054 #ifdef _WIN32
00055 typedef LONG value_t;
00056 #else
00057 typedef unsigned int value_t;
00058 #endif
00059 
00062 class Semaphore
00063 {
00064 public:
00065         Semaphore(value_t start_val = 0);
00066         ~Semaphore();
00067 
00069         int Post();
00072         int Wait();
00073 
00075         int TryWait();
00076 
00078         int GetValue(int&);
00079 
00080 private:
00081         Semaphore(const Semaphore& ) {} // copy constructor
00082         Semaphore& operator=(const Semaphore& ) { return *this; } // assignment operator
00083 #ifdef _WIN32
00084         HANDLE m_handle;
00085 #else
00086         sem_t m_sem;
00087 #endif
00088 };
00089 
00090 
00091 
00092 
00093 #ifdef SOCKETS_NAMESPACE
00094 } // namespace SOCKETS_NAMESPACE {
00095 #endif
00096 #endif // _SOCKETS_Semaphore_H
00097
Semaphore.h
