113 lines
2.4 KiB
C++
113 lines
2.4 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1997.
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//
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// File: critsect.cpp
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//
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// Contents: critical section helper class
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//
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// Classes: CCriticalSection
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// CLockHandler
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// CLock
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//
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//
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// Notes:
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//
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// History: 13-Nov-97 rogerg Created.
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//
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//--------------------------------------------------------------------------
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#include "lib.h"
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//+---------------------------------------------------------------------------
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//
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// Member: CLockHandler::CLockHandler, public
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//
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// Synopsis: Constructor
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//
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// Arguments:
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//
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// Returns:
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//
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// Modifies:
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//
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// History: 05-Nov-97 rogerg Created.
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//
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//----------------------------------------------------------------------------
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CLockHandler::CLockHandler()
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{
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m_dwLockThreadId = 0;
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InitializeCriticalSection(&m_CriticalSection);
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CLockHandler::~CLockHandler, public
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//
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// Synopsis: Destructor
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//
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// Arguments:
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//
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// Returns:
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//
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// Modifies:
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//
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// History: 05-Nov-97 rogerg Created.
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//
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//----------------------------------------------------------------------------
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CLockHandler::~CLockHandler()
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{
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Assert (0 == m_dwLockThreadId);
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DeleteCriticalSection(&m_CriticalSection);
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CLockHandler::Lock, public
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//
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// Synopsis: Adds a lock to the specified class
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//
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// Arguments:
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//
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// Returns:
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//
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// Modifies:
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//
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// History: 05-Nov-97 rogerg Created.
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//
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//----------------------------------------------------------------------------
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void CLockHandler::Lock(DWORD dwThreadId)
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{
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EnterCriticalSection(&m_CriticalSection);
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m_dwLockThreadId = dwThreadId;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CLockHandler::UnLock, public
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//
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// Synopsis: Removes a lock to the specified class
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//
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// Arguments:
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//
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// Returns:
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//
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// Modifies:
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//
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// History: 05-Nov-97 rogerg Created.
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//
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//----------------------------------------------------------------------------
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void CLockHandler::UnLock()
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{
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m_dwLockThreadId = 0;
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LeaveCriticalSection(&m_CriticalSection);
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}
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