68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Microsoft Windows
|
||
|
|
// Copyright (C) Microsoft Corporation, 1999.
|
||
|
|
//
|
||
|
|
// File: W R L O C K . H
|
||
|
|
//
|
||
|
|
// Contents: Defines the interface to the netcfg write lock used to
|
||
|
|
// protect the network configuration information from being
|
||
|
|
// modified by more than one writer at a time.
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
// Author: shaunco 15 Jan 1999
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
// This is the interface to the write lock that INetCfg uses.
|
||
|
|
//
|
||
|
|
class CWriteLock
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
HANDLE m_hMutex;
|
||
|
|
BOOL m_fOwned;
|
||
|
|
|
||
|
|
private:
|
||
|
|
HRESULT
|
||
|
|
HrEnsureMutexCreated ();
|
||
|
|
|
||
|
|
VOID
|
||
|
|
SetOrQueryLockHolder (
|
||
|
|
IN BOOL fSet,
|
||
|
|
IN PCWSTR pszNewOwnerDesc,
|
||
|
|
OUT PWSTR* ppszCurrentOwnerDesc);
|
||
|
|
|
||
|
|
public:
|
||
|
|
CWriteLock ()
|
||
|
|
{
|
||
|
|
m_hMutex = NULL;
|
||
|
|
m_fOwned = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
~CWriteLock ();
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
WaitToAcquire (
|
||
|
|
IN DWORD dwMilliseconds,
|
||
|
|
IN PCWSTR pszNewOwnerDesc,
|
||
|
|
OUT PWSTR* ppszCurrentOwnerDesc);
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
FIsLockedByAnyone (
|
||
|
|
OUT PWSTR* ppszCurrentOwnerDesc OPTIONAL);
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
FIsOwnedByMe ()
|
||
|
|
{
|
||
|
|
AssertH (FImplies(m_fOwned, m_hMutex));
|
||
|
|
return m_fOwned;
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID
|
||
|
|
ReleaseIfOwned ();
|
||
|
|
};
|
||
|
|
|