JackPosixSemaphore.h

00001 /*
00002 Copyright (C) 2004-2008 Grame  
00003 
00004 This program is free software; you can redistribute it and/or modify
00005   it under the terms of the GNU General Public License as published by
00006   the Free Software Foundation; either version 2 of the License, or
00007   (at your option) any later version.
00008 
00009   This program is distributed in the hope that it will be useful,
00010   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012   GNU General Public License for more details.
00013 
00014   You should have received a copy of the GNU General Public License
00015   along with this program; if not, write to the Free Software
00016   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 
00018 */
00019 
00020 #ifndef __JackPosixSemaphore__
00021 #define __JackPosixSemaphore__
00022 
00023 #include "JackSynchro.h"
00024 #include <semaphore.h>
00025 #include <time.h>
00026 #include <stdio.h>
00027 #include <assert.h>
00028 
00029 namespace Jack
00030 {
00031 
00036 class JackPosixSemaphore : public JackSynchro
00037 {
00038 
00039     private:
00040 
00041         sem_t* fSemaphore;
00042 
00043     protected:
00044 
00045         void BuildName(const char* name, const char* server_name, char* res);
00046 
00047     public:
00048 
00049         JackPosixSemaphore(): JackSynchro(), fSemaphore(NULL)
00050         {}
00051         virtual ~JackPosixSemaphore()
00052         {}
00053 
00054         bool Signal();
00055         bool SignalAll();
00056         bool Wait();
00057         bool TimedWait(long usec);
00058 
00059         bool Allocate(const char* name, const char* server_name, int value);
00060         bool Connect(const char* name, const char* server_name);
00061         bool ConnectInput(const char* name, const char* server_name);
00062         bool ConnectOutput(const char* name, const char* server_name);
00063         bool Disconnect();
00064         void Destroy();
00065 };
00066 
00067 } // end of namespace
00068 
00069 
00070 #endif
00071 

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