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