Jack2 1.9.6

JackWinMutex.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 Lesser General Public License as published by
00006  the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
00013  
00014  You should have received a copy of the GNU Lesser General Public License
00015  along with this program; if not, write to the Free Software
00016  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017  
00018  */
00019 
00020 
00021 #ifndef __JackWinMutex__
00022 #define __JackWinMutex__
00023 
00024 #include <windows.h>
00025 
00026 namespace Jack
00027 {
00031 class JackWinMutex
00032 {
00033 
00034     protected:
00035 
00036         HANDLE fMutex;
00037 
00038     public:
00039 
00040         JackWinMutex()
00041         {
00042             // In recursive mode by default
00043             fMutex = (HANDLE)CreateMutex(0, FALSE, 0);
00044         }
00045 
00046         virtual ~JackWinMutex()
00047         {
00048             CloseHandle(fMutex);
00049         }
00050 
00051         bool Lock()
00052         {
00053             return (WAIT_OBJECT_0 == WaitForSingleObject(fMutex, INFINITE));
00054         }
00055 
00056         bool Trylock()
00057         {
00058             return (WAIT_OBJECT_0 == WaitForSingleObject(fMutex, 0));
00059         }
00060 
00061         bool Unlock()
00062         {
00063             return(ReleaseMutex(fMutex) != 0);
00064         }
00065 
00066 };
00067 
00068 } // namespace
00069 
00070 #endif