JackMachSemaphore.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 __JackMacSemaphore__
00021 #define __JackMacSemaphore__
00022 
00023 #include "JackSynchro.h"
00024 #include <mach/mach.h>
00025 #include <mach/mach_types.h>
00026 #include <mach/message.h>
00027 #include <mach/mach_error.h>
00028 #include <servers/bootstrap.h>
00029 #include <mach/semaphore.h>
00030 
00031 namespace Jack
00032 {
00033 
00038 class JackMachSemaphore : public JackSynchro
00039 {
00040 
00041     private:
00042 
00043         semaphore_t fSemaphore;
00044         static mach_port_t fBootPort;
00045 
00046     protected:
00047 
00048         void BuildName(const char* name, const char* server_name, char* res);
00049 
00050     public:
00051 
00052         JackMachSemaphore(): JackSynchro(), fSemaphore(0)
00053         {}
00054         virtual ~JackMachSemaphore()
00055         {}
00056 
00057         bool Signal();
00058         bool SignalAll();
00059         bool Wait();
00060         bool TimedWait(long usec);
00061 
00062         bool Allocate(const char* name, const char* server_name, int value);
00063         bool Connect(const char* name, const char* server_name);
00064         bool ConnectInput(const char* name, const char* server_name);
00065         bool ConnectOutput(const char* name, const char* server_name);
00066         bool Disconnect();
00067         void Destroy();
00068 };
00069 
00070 
00071 } // end of namespace
00072 
00073 
00074 #endif
00075 

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