windows/JackWinSemaphore.h

   1 /*
   2  Copyright (C) 2004-2008 Grame
   3
   4  This program is free software; you can redistribute it and/or modify
   5  it under the terms of the GNU Lesser General Public License as published by
   6  the Free Software Foundation; either version 2.1 of the License, or
   7  (at your option) any later version.
   8
   9  This program is distributed in the hope that it will be useful,
  10  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  GNU Lesser General Public License for more details.
  13
  14  You should have received a copy of the GNU Lesser General Public License
  15  along with this program; if not, write to the Free Software
  16  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18  */
  19
  20
  21 #ifndef __JackWinSemaphore__
  22 #define __JackWinSemaphore__
  23
  24 #include "JackSynchro.h"
  25 #include <windows.h>
  26 #include <assert.h>
  27
  28 namespace Jack
  29 {
  30
  31 /*!
  32 \brief Inter process synchronization using system wide semaphore.
  33 */
  34
  35 class JackWinSemaphore : public detail::JackSynchro
  36 {
  37
  38     private:
  39
  40         HANDLE fSemaphore;
  41
  42     protected:
  43
  44         void BuildName(const char* name, const char* server_name, char* res, int size);
  45
  46     public:
  47
  48         JackWinSemaphore():JackSynchro(), fSemaphore(NULL)
  49         {}
  50
  51         bool Signal();
  52         bool SignalAll();
  53         bool Wait();
  54         bool TimedWait(long usec);
  55
  56         bool Allocate(const char* name, const char* server_name, int value);
  57         bool Connect(const char* name, const char* server_name);
  58         bool ConnectInput(const char* name, const char* server_name);
  59         bool ConnectOutput(const char* name, const char* server_name);
  60         bool Disconnect();
  61         void Destroy();
  62 };
  63
  64 } // end of namespace
  65
  66 #endif
  67