Source code of Windows XP (NT5)
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// --------------------------------------------------------------------------
// Module Name: LogonMutex.h
//
// Copyright (c) 2001, Microsoft Corporation
//
// File that implements a class that manages a single global logon mutex.
//
// History: 2001-04-06 vtan created
// --------------------------------------------------------------------------
#ifndef _LogonMutex_
#define _LogonMutex_
// --------------------------------------------------------------------------
// CLogonMutex
//
// Purpose: This class encapsulates a logon mutex for exclusion to the
// interactive logon interface offered by the friendly UI.
//
// History: 2001-04-06 vtan created
// --------------------------------------------------------------------------
class CLogonMutex
{
private:
CLogonMutex (void);
~CLogonMutex (void);
public:
static void Acquire (void);
static void Release (void);
static void SignalReply (void);
static void SignalShutdown (void);
static void StaticInitialize (void);
static void StaticTerminate (void);
private:
static HANDLE CreateShutdownEvent (void);
static HANDLE CreateLogonMutex (void);
static HANDLE CreateLogonRequestMutex (void);
static HANDLE OpenShutdownEvent (void);
static HANDLE OpenLogonMutex (void);
private:
static DWORD s_dwThreadID;
static LONG s_lAcquireCount;
static HANDLE s_hMutex;
static HANDLE s_hMutexRequest;
static HANDLE s_hEvent;
static const TCHAR s_szLogonMutexName[];
static const TCHAR s_szLogonRequestMutexName[];
static const TCHAR s_szLogonReplyEventName[];
static const TCHAR s_szShutdownEventName[];
static SID_IDENTIFIER_AUTHORITY s_SecurityNTAuthority;
static SID_IDENTIFIER_AUTHORITY s_SecurityWorldSID;
};
#endif /* _LogonMutex_ */