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86 lines
2.0 KiB
86 lines
2.0 KiB
/*****************************************************************************
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* Copyright (c) 1998-2001 Microsoft Corporation, All Rights Reserved
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*
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* All Rights Reserved
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*
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* This software is furnished under a license and may be used and copied
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* only in accordance with the terms of such license and with the inclusion
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* of the above copyright notice. This software or any other copies thereof
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* may not be provided or otherwise made available to any other person. No
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* title to and ownership of the software is hereby transferred.
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*****************************************************************************/
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//============================================================================
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//
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// CMutex.cpp -- Mutex Wrapper
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//
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// Copyright (c) 1998-2001 Microsoft Corporation, All Rights Reserved
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//
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// Revisions: 6/26/98 a-kevhu Created
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//
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//============================================================================
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#include "precomp.h"
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#include "CMutex.h"
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// constructor creates a mutex allowing creation parameters to be specified...
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CMutex::CMutex(BOOL bInitialOwner, LPCTSTR lpName, LPSECURITY_ATTRIBUTES lpMutexAttributes)
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{
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m_hHandle = ::CreateMutex(lpMutexAttributes, bInitialOwner, lpName);
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if (CIsValidHandle(m_hHandle))
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{
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if (lpName)
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{
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m_dwStatus = GetLastError();
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}
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else
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{
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m_dwStatus = NO_ERROR;
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}
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}
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else
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{
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m_dwStatus = GetLastError();
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ThrowError(m_dwStatus);
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}
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}
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// constructor opens an existing named mutex...
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CMutex::CMutex(LPCTSTR lpName, BOOL bInheritHandle, DWORD dwDesiredAccess)
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{
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m_hHandle = ::OpenMutex(dwDesiredAccess, bInheritHandle, lpName);
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if (CIsValidHandle(m_hHandle))
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{
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m_dwStatus = NO_ERROR;
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}
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else
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{
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m_dwStatus = GetLastError();
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}
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}
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// release a lock on a mutex...
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BOOL CMutex::Release(void)
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{
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return ::ReleaseMutex(m_hHandle);
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}
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