00001 /* 00002 Copyright (C) 2006 Grame 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Lesser General Public 00006 License as published by the Free Software Foundation; either 00007 version 2.1 of the License, or (at your option) any later version. 00008 00009 This library 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 GNU 00012 Lesser General Public License for more details. 00013 00014 You should have received a copy of the GNU Lesser General Public 00015 License along with this library; if not, write to the Free Software 00016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 00018 Grame Research Laboratory, 9 rue du Garet, 69001 Lyon - France 00019 grame@grame.fr 00020 */ 00021 00022 #ifndef __JackWinMutex__ 00023 #define __JackWinMutex__ 00024 00025 #include <windows.h> 00026 00027 namespace Jack 00028 { 00032 class JackWinMutex 00033 { 00034 00035 private: 00036 00037 HANDLE fMutex; 00038 00039 public: 00040 00041 JackWinMutex() 00042 { 00043 // In recursive mode by default 00044 fMutex = (HANDLE)CreateMutex(0, FALSE, 0); 00045 } 00046 ~JackWinMutex() 00047 { 00048 CloseHandle(fMutex); 00049 } 00050 00051 void Lock() 00052 { 00053 WaitForSingleObject(fMutex, INFINITE); 00054 } 00055 00056 bool Trylock() 00057 { 00058 return (WAIT_OBJECT_0 == WaitForSingleObject(fMutex, 0)); 00059 } 00060 00061 void Unlock() 00062 { 00063 ReleaseMutex(fMutex); 00064 } 00065 00066 }; 00067 00068 } // namespace 00069 00070 #endif