Panda3D
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00001 // Filename: atomicAdjustWin32Impl.h 00002 // Created by: drose (07Feb06) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef ATOMICADJUSTWIN32IMPL_H 00016 #define ATOMICADJUSTWIN32IMPL_H 00017 00018 #include "dtoolbase.h" 00019 #include "selectThreadImpl.h" 00020 00021 #ifdef WIN32_VC 00022 00023 #include "numeric_types.h" 00024 #define WIN32_LEAN_AND_MEAN 00025 #include <windows.h> 00026 00027 //////////////////////////////////////////////////////////////////// 00028 // Class : AtomicAdjustWin32Impl 00029 // Description : Uses Windows native calls to implement atomic 00030 // adjustments. 00031 //////////////////////////////////////////////////////////////////// 00032 class EXPCL_DTOOL AtomicAdjustWin32Impl { 00033 public: 00034 #ifdef _WIN64 00035 // For 64-bit builds, we'd prefer to use a 64-bit integer. 00036 typedef ALIGN_8BYTE LONGLONG Integer; 00037 typedef void *UnalignedPointer; 00038 typedef ALIGN_8BYTE UnalignedPointer Pointer; 00039 #else 00040 typedef ALIGN_4BYTE LONG Integer; 00041 typedef void *UnalignedPointer; 00042 typedef ALIGN_4BYTE UnalignedPointer Pointer; 00043 #endif // _WIN64 00044 00045 INLINE static void inc(TVOLATILE Integer &var); 00046 INLINE static bool dec(TVOLATILE Integer &var); 00047 INLINE static void add(TVOLATILE Integer &var, Integer delta); 00048 INLINE static Integer set(TVOLATILE Integer &var, Integer new_value); 00049 INLINE static Integer get(const TVOLATILE Integer &var); 00050 00051 INLINE static Pointer set_ptr(TVOLATILE Pointer &var, Pointer new_value); 00052 INLINE static Pointer get_ptr(const TVOLATILE Pointer &var); 00053 00054 INLINE static Integer compare_and_exchange(TVOLATILE Integer &mem, 00055 Integer old_value, 00056 Integer new_value); 00057 00058 INLINE static Pointer compare_and_exchange_ptr(TVOLATILE Pointer &mem, 00059 Pointer old_value, 00060 Pointer new_value); 00061 }; 00062 00063 #include "atomicAdjustWin32Impl.I" 00064 00065 #endif // WIN32_VC 00066 00067 #endif