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137 lines
3.1 KiB
137 lines
3.1 KiB
// RefCnt.cpp -- Implementation of CRCObject semantics
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#include "stdafx.h"
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#include "RefCnt.h"
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#include <stdio.h>
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#ifdef _DEBUG
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void CRCObject::StoreImage(CPersist *pDiskImage)
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{
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ASSERT(FALSE);
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}
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void CRCObject::ConnectImage(CPersist *pDiskImage)
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{
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ASSERT(FALSE);
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}
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void CRCObject::SkipImage(CPersist *pDiskImage)
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{
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ASSERT(FALSE);
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}
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CObjectCounter::CObjectCounter()
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{
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m_prcObjectFirst = NULL;
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m_crcObject = 0;
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m_crcObjRef = 0;
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}
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CObjectCounter::~CObjectCounter()
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{
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#ifdef _DEBUG // Turn this code on whenever the assertions below fail. It will dump
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// useful diagnostic info to stdout.
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if (m_crcObjRef)
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{
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CRCObject *prcObj;
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char acDebugBuff[256];
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for (prcObj= m_prcObjectFirst; prcObj; prcObj= prcObj->m_prcObjNext)
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{
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wsprintf(acDebugBuff, "0x%08x \"%s\":\n", UINT(prcObj), prcObj->m_pszTypeName);
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OutputDebugString(acDebugBuff);
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POwnerLink pol;
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for (pol= prcObj->m_pol; pol; pol= pol->polNext)
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wsprintf(acDebugBuff, " 0x%08x 0x%08x\n", UINT(pol->pvClass), UINT(pol->pprcObj));
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OutputDebugString(acDebugBuff);
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}
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}
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#endif // _DEBUG
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ASSERT(!m_crcObjRef);
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ASSERT(!m_crcObject);
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ASSERT(!m_prcObjectFirst);
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}
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BOOL CObjectCounter::ObjectRecorded(CRCObject *prcObj)
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{
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CRCObject *prcOb;
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BOOL fFound= FALSE;
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for (prcOb= m_prcObjectFirst; prcOb; prcOb= prcOb->m_prcObjNext)
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if (prcOb == prcObj) { fFound= TRUE; break; }
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return fFound;
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}
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void CObjectCounter::ObjectBirth (CRCObject *prcObj)
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{
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ASSERT(!ObjectRecorded(prcObj));
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++m_crcObject;
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prcObj->m_prcObjNext = m_prcObjectFirst;
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prcObj->m_pprcObjLast = &m_prcObjectFirst;
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if (m_prcObjectFirst)
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m_prcObjectFirst->m_pprcObjLast= &(prcObj->m_prcObjNext);
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m_prcObjectFirst = prcObj;
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}
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void CObjectCounter::ObjectDeath (CRCObject *prcObj)
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{
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ASSERT(ObjectRecorded(prcObj));
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--m_crcObject;
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if (prcObj->m_prcObjNext)
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prcObj->m_prcObjNext->m_pprcObjLast= prcObj->m_pprcObjLast;
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*(prcObj->m_pprcObjLast)= prcObj->m_prcObjNext;
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}
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void CObjectCounter::AddReference(CRCObject *prcObj)
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{
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ASSERT(ObjectRecorded(prcObj));
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++m_crcObjRef;
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}
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void CObjectCounter::SubReference(CRCObject *prcObj)
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{
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ASSERT(m_crcObjRef);
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ASSERT(ObjectRecorded(prcObj));
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--m_crcObjRef;
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}
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CObjectAccountant::CObjectAccountant(int cObjDelta, int cRefDelta)
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{
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m_cObjStarting= int(ObjectCounter.m_crcObject);
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m_cRefStarting= int(ObjectCounter.m_crcObjRef);
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m_cObjDelta = cObjDelta;
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m_cRefDelta = cRefDelta;
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ASSERT(m_cObjStarting >= 0);
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ASSERT(m_cRefStarting >= 0);
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ASSERT(m_cObjStarting + m_cObjDelta >= 0);
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ASSERT(m_cRefStarting + m_cRefDelta >= 0);
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}
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CObjectAccountant::~CObjectAccountant()
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{
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ASSERT(int(ObjectCounter.m_crcObject) == m_cObjStarting + m_cObjDelta);
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ASSERT(int(ObjectCounter.m_crcObjRef) == m_cRefStarting + m_cRefDelta);
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}
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CObjectCounter ObjectCounter;
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#endif // _DEBUG
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