119 lines
2.5 KiB
C++
119 lines
2.5 KiB
C++
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//
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// Copyright (c) 1997-2001 Microsoft Corporation, All Rights Reserved
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//
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// ***************************************************************************
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//
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// Original Author: Rajesh Rao
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//
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// $Author: rajeshr $
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// $Date: 6/11/98 4:43p $
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// $Workfile:refcount.cpp $
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//
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// $Modtime: 6/11/98 11:21a $
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// $Revision: 1 $
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// $Nokeywords: $
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//
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//
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// Description: Contains the imlementation for a basic reference counted object
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//
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//***************************************************************************
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#include "precomp.h"
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CRefCountedObject::CRefCountedObject() :
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m_dwRefCount ( 1 ),
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m_lpszName ( NULL ),
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m_CreationTime ( 0 ),
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m_LastAccessTime ( 0 )
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{
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// Initialize the critical section
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InitializeCriticalSection(&m_ReferenceCountSection);
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FILETIME fileTime;
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GetSystemTimeAsFileTime(&fileTime);
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LARGE_INTEGER creationTime;
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memcpy((LPVOID)&creationTime, (LPVOID)&fileTime, sizeof LARGE_INTEGER);
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m_CreationTime = creationTime.QuadPart;
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m_LastAccessTime = creationTime.QuadPart;
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}
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CRefCountedObject::CRefCountedObject(LPCWSTR lpszName) :
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m_dwRefCount ( 1 ),
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m_lpszName ( NULL ),
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m_CreationTime ( 0 ),
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m_LastAccessTime ( 0 )
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{
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// Initialize the critical section
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InitializeCriticalSection(&m_ReferenceCountSection);
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if(lpszName)
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{
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try
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{
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m_lpszName = new WCHAR[wcslen(lpszName) + 1];
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wcscpy(m_lpszName, lpszName);
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}
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catch ( ... )
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{
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if ( m_lpszName )
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{
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delete [] m_lpszName;
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m_lpszName = NULL;
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}
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DeleteCriticalSection(&m_ReferenceCountSection);
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throw;
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}
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}
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FILETIME fileTime;
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GetSystemTimeAsFileTime(&fileTime);
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LARGE_INTEGER creationTime;
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memcpy((LPVOID)&creationTime, (LPVOID)&fileTime, sizeof LARGE_INTEGER);
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m_CreationTime = creationTime.QuadPart;
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}
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CRefCountedObject::~CRefCountedObject()
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{
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delete[] m_lpszName;
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// Destroy the critical section
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DeleteCriticalSection(&m_ReferenceCountSection);
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}
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void CRefCountedObject::AddRef()
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{
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EnterCriticalSection(&m_ReferenceCountSection);
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m_dwRefCount ++;
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LeaveCriticalSection(&m_ReferenceCountSection);
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}
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void CRefCountedObject::Release()
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{
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EnterCriticalSection(&m_ReferenceCountSection);
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DWORD dwCount = --m_dwRefCount;
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LeaveCriticalSection(&m_ReferenceCountSection);
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if( dwCount == 0)
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delete this;
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}
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LPCWSTR CRefCountedObject::GetName()
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{
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return m_lpszName;
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}
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void CRefCountedObject::SetName(LPCWSTR lpszName)
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{
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delete[] m_lpszName;
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if(lpszName)
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{
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m_lpszName = new WCHAR[wcslen(lpszName) + 1];
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wcscpy(m_lpszName, lpszName);
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}
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else
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m_lpszName = NULL;
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}
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