75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
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//#pragma title( "TSync.hpp - Common synchronization classes header file" )
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/*
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Copyright (c) 1995-1998, Mission Critical Software, Inc. All rights reserved.
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===============================================================================
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Module - TSync.hpp
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System - Common
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Author - Rich Denham
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Created - 1996-11-08
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Description - Common synchronization classes header file
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This includes TCriticalSection, and TNamedSemaphore
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Updates -
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===============================================================================
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*/
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#ifndef MCSINC_TSync_hpp
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#define MCSINC_TSync_hpp
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#ifndef _INC_TIME
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#include <time.h>
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#endif
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class TCriticalSection
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{
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CRITICAL_SECTION cs;
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public:
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TCriticalSection() { InitializeCriticalSection(&cs); }
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~TCriticalSection() { DeleteCriticalSection(&cs); }
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void Enter() { EnterCriticalSection(&cs); }
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void Leave() { LeaveCriticalSection(&cs); }
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};
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class TSynchObject
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{
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public:
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HANDLE handle;
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TSynchObject()
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{ handle = NULL; }
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~TSynchObject()
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{ Close(); }
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void Close()
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{ if ( handle != NULL ) { CloseHandle( handle ); handle = NULL; } }
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DWORD WaitSingle(DWORD msec) const { return WaitForSingleObject(handle, msec); }
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DWORD WaitSingle() const { return WaitForSingleObject(handle, INFINITE); }
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HANDLE Handle() { return handle; }
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};
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///////////////////////////////////////////////////////////////////////////////
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// Named semaphores
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///////////////////////////////////////////////////////////////////////////////
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class TSemaphoreNamed : public TSynchObject
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{
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public:
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TSemaphoreNamed() {};
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~TSemaphoreNamed() {};
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DWORD Create( // ret-OS return code
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TCHAR const * sNameT ,// in -semaphore name
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DWORD nInitial ,// in -initial count
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DWORD nMaximum ,// in -maximum count
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BOOL * pbExisted=NULL // out-TRUE=previously existed
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);
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DWORD Open( // ret-OS return code
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TCHAR const * sNameT // in -semaphore name
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);
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DWORD Release( // ret-OS return code
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long nRelease=1 // in -number to release
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);
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};
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#endif // MCSINC_TSync_hpp
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// TSync.hpp - end of file
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