csutil/threading/atomicops_msvc.h Source File (Crystal Space 2.0 Public API Reference)

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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__