csutil/threading/atomicops_msvc.h
00001 /* 00002 Copyright (C) 2006 by Marten Svanfeldt 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 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 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public 00015 License along with this library; if not, write to the Free 00016 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef __CS_CSUTIL_ATOMICOPS_MSVC_H__ 00020 #define __CS_CSUTIL_ATOMICOPS_MSVC_H__ 00021 00022 #ifndef DOXYGEN_RUN 00023 00024 namespace CS 00025 { 00026 namespace Threading 00027 { 00028 00029 #pragma warning(push) 00030 #pragma warning(disable: 4311) 00031 00032 //Windows and MSVC, use intrinsics 00033 class AtomicOperationsMSVC 00034 { 00035 public: 00036 inline static int32 Set (int32* target, int32 value) 00037 { 00038 return (int32)_InterlockedExchange ((long*)target, value); 00039 } 00040 00041 inline static void* Set (void** target, void* value) 00042 { 00043 #if CS_PROCESSOR_SIZE == 64 00044 return (void*)_InterlockedExchange64 ((__int64*)target, (__int64)value); 00045 #else 00046 return (void*)_InterlockedExchange ((long*)target, (long)value); 00047 #endif 00048 } 00049 00050 inline static int32 CompareAndSet (int32* target, int32 value, 00051 int32 comparand) 00052 { 00053 return (int32)_InterlockedCompareExchange ((long*)target, 00054 (long)value, (long)comparand); 00055 } 00056 00057 inline static void* CompareAndSet (void** target, void* value, 00058 void* comparand) 00059 { 00060 #if CS_PROCESSOR_SIZE == 64 00061 return (void*)_InterlockedCompareExchange64 ((__int64*)target, 00062 (__int64)value, (__int64)comparand); 00063 #else 00064 return (void*)_InterlockedCompareExchange ((long*)target, 00065 (long)value, (long)comparand); 00066 #endif 00067 } 00068 00069 inline static int32 Increment (int32* target) 00070 { 00071 return (int32)_InterlockedIncrement ((long*)target); 00072 } 00073 00074 inline static int32 Decrement (int32* target) 00075 { 00076 return (int32)_InterlockedDecrement ((long*)target); 00077 } 00078 }; 00079 #pragma warning(pop) 00080 00081 } 00082 } 00083 00084 #endif // DOXYGEN_RUN 00085 00086 #endif // __CS_CSUTIL_ATOMICOPS_MSVC_H__
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