Source code of Windows XP (NT5)
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//+----------------------------------------------------------------------------
//
// File: mutex.h
//
// Module: CMSETUP.LIB, CMDIAL32.DLL, CMDL32.EXE
//
// Synopsis: Definition of the class CNamedMutex
//
// Copyright (c) 1998-1999 Microsoft Corporation
//
// Author: fengsun Created 02/26/98
//
//+----------------------------------------------------------------------------
#ifndef __CM_MUTEXT_H
#define __CM_MUTEXT_H
#include <windows.h>
#include "cmdebug.h"
//+---------------------------------------------------------------------------
//
// class CNamedMutex
//
// Description: A class to lock/unlock a named mutex
// The destructor releases the mutex.
//
// History: fengsun Created 2/19/98
//
//----------------------------------------------------------------------------
class CNamedMutex
{
public:
CNamedMutex() {m_hMutex = NULL; m_fOwn = FALSE;}
~CNamedMutex() {Unlock();}
BOOL Lock(LPCTSTR lpName, BOOL fWait = FALSE, DWORD dwMilliseconds = INFINITE, BOOL fNoAbandon = FALSE);
void Unlock();
protected:
HANDLE m_hMutex; // the handle of the mutex
BOOL m_fOwn; // whther we own the mutex
};
#endif //__CM_MUTEXT_H