pxmapmgr.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:7k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- // include
- #include "hxtypes.h"
- #include "hxcom.h"
- // hxmisc
- #include "baseobj.h"
- #include "unkimp.h"
- // hxcont
- #include "hxmap.h"
- // pxcomlib
- #include "pxmapmgr.h"
- // hxdebug
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static char HX_THIS_FILE[] = __FILE__;
- #endif
- PXMapManager::PXMapManager()
- {
- m_lRefCount = 0;
- m_ulNextHandle = 1;
- m_pMap = NULL;
- m_pIterator = NULL;
- }
- PXMapManager::~PXMapManager()
- {
- HX_DELETE(m_pMap);
- }
- STDMETHODIMP PXMapManager::QueryInterface(REFIID riid, void** ppvObj)
- {
- HX_RESULT retVal = HXR_OK;
- if (IsEqualIID(riid, IID_IUnknown))
- {
- AddRef();
- *ppvObj = (IUnknown *) this;
- }
- else
- {
- *ppvObj = NULL;
- retVal = HXR_NOINTERFACE;
- }
- return retVal;
- }
- STDMETHODIMP_(UINT32) PXMapManager::AddRef()
- {
- return InterlockedIncrement(&m_lRefCount);
- }
- STDMETHODIMP_(UINT32) PXMapManager::Release()
- {
-
- if (InterlockedDecrement(&m_lRefCount) > 0)
- return m_lRefCount;
- delete this;
- return 0;
- }
- STDMETHODIMP_(BOOL) PXMapManager::IsEntryPresent(UINT32 ulHandle)
- {
- BOOL bRet = FALSE;
- if (m_pMap)
- {
- void* pVoid = NULL;
- bRet = m_pMap->Lookup((LONG32) ulHandle, pVoid);
- }
- return bRet;
- }
- STDMETHODIMP PXMapManager::AddEntry(void* pEntry, REF(UINT32) rulHandle)
- {
- HX_RESULT retVal = HXR_OK;
- if (pEntry)
- {
- // Create a map if we don't already have one
- if (!m_pMap)
- {
- m_pMap = new CHXMapLongToObj();
- if (!m_pMap)
- {
- retVal = HXR_OUTOFMEMORY;
- }
- }
- if (SUCCEEDED(retVal))
- {
- // Make sure we don't already have a map entry
- // for this handle
- void* pVoid = NULL;
- BOOL bPresent = m_pMap->Lookup((LONG32) m_ulNextHandle, pVoid);
- if (!bPresent)
- {
- // There's no current entry, so we can add this
- // to the map.
- m_pMap->SetAt((LONG32) m_ulNextHandle, pEntry);
- // Set the outgoing session handle
- rulHandle = m_ulNextHandle;
- // Increment the session handle
- m_ulNextHandle = (m_ulNextHandle == 0x7FFFFFFF ? 1 : m_ulNextHandle + 1);
- }
- else
- {
- retVal = HXR_FAIL;
- }
- }
- }
- else
- {
- retVal = HXR_INVALID_PARAMETER;
- }
- return retVal;
- }
- STDMETHODIMP PXMapManager::DeleteEntry(UINT32 ulHandle, void** ppEntry)
- {
- HX_RESULT retVal = HXR_OK;
- if (ppEntry && m_pMap)
- {
- void* pVoid = NULL;
- BOOL bPresent = m_pMap->Lookup((LONG32) ulHandle, pVoid);
- if (bPresent)
- {
- // Get the entry
- *ppEntry = pVoid;
- // Remove it from the map
- m_pMap->RemoveKey((LONG32) ulHandle);
- }
- }
- return retVal;
- }
- STDMETHODIMP PXMapManager::DeleteAllEntries()
- {
- HX_RESULT retVal = HXR_OK;
- if (m_pMap)
- {
- m_pMap->RemoveAll();
- }
- return retVal;
- }
- STDMETHODIMP PXMapManager::GetEntry(UINT32 ulHandle, void** ppEntry)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pMap && ppEntry)
- {
- void* pVoid = NULL;
- BOOL bPresent = m_pMap->Lookup((LONG32) ulHandle, pVoid);
- if (bPresent)
- {
- // Get the entry
- *ppEntry = pVoid;
- // Make the return value ok
- retVal = HXR_OK;
- }
- }
- return retVal;
- }
- STDMETHODIMP PXMapManager::GetFirstEntry(REF(UINT32) rulHandle, void** ppEntry)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pMap && ppEntry)
- {
- m_pIterator = m_pMap->GetStartPosition();
- if (m_pIterator)
- {
- // Get the object pointer at the current position
- // and advance to the next position
- LONG32 lKey = 0;
- void* pElement = NULL;
- m_pMap->GetNextAssoc(m_pIterator, lKey, pElement);
- if (pElement)
- {
- rulHandle = (UINT32) lKey;
- *ppEntry = pElement;
- retVal = HXR_OK;
- }
- }
- }
- return retVal;
- }
- STDMETHODIMP PXMapManager::GetNextEntry(REF(UINT32) rulHandle, void** ppEntry)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pMap && ppEntry)
- {
- if (m_pIterator)
- {
- // Get the object pointer at the current position
- // and advance to the next position
- LONG32 lKey = 0;
- void* pElement = NULL;
- m_pMap->GetNextAssoc(m_pIterator, lKey, pElement);
- if (pElement)
- {
- rulHandle = (UINT32) lKey;
- *ppEntry = pElement;
- retVal = HXR_OK;
- }
- }
- }
- return retVal;
- }