91 lines
2 KiB
C++
91 lines
2 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1990 - 2000
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//
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// File: CompFlag.hxx
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//
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//--------------------------------------------------------------------------
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/* --------------------------------------------------------------------
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File : CompFlag.hxx
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Title : Implementation of a flag set.
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History :
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KamenM - 01/04/2000 - Created.
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-------------------------------------------------------------------- */
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#ifndef __COMPFLAG_HXX__
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#define __COMPFLAG_HXX__
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class CompositeFlags
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{
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public:
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inline CompositeFlags(void)
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{
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Flags = 0;
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}
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inline void SetFlagUnsafe(unsigned int FlagConstant)
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{
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Flags |= FlagConstant;
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}
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inline void SetFlagWithMutex(unsigned int FlagConstant, MUTEX *Mutex)
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{
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Mutex->Request();
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SetFlagUnsafe(FlagConstant);
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Mutex->Clear();
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}
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inline void SetFlagInterlocked(unsigned int FlagConstant)
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{
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unsigned int NewFlags, OldFlags;
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do
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{
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OldFlags = Flags;
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NewFlags = Flags | FlagConstant;
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}
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while (InterlockedCompareExchange((long *)&Flags, NewFlags, OldFlags) != (long)OldFlags);
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}
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inline void ClearFlagUnsafe(unsigned int FlagConstant)
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{
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Flags &= ~FlagConstant;
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}
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inline void ClearFlagWithMutex(unsigned int FlagConstant, MUTEX *Mutex)
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{
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Mutex->Request();
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ClearFlagUnsafe(FlagConstant);
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Mutex->Clear();
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}
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inline void ClearFlagInterlocked(unsigned int FlagConstant)
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{
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unsigned int NewFlags, OldFlags;
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do
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{
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OldFlags = Flags;
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NewFlags = Flags & (~FlagConstant);
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}
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while (InterlockedCompareExchange((long *)&Flags, NewFlags, OldFlags) != (long)OldFlags);
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}
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inline BOOL GetFlag(unsigned int FlagConstant)
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{
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return (Flags & FlagConstant);
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}
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private:
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unsigned int Flags;
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};
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#endif // __COMPFLAG_HXX__
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