hxgrpen2.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:5k
- /* ***** 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 "hxtypes.h"
- #include "hxcom.h"
- #include "hxplugn.h"
- #include "hxphand.h"
- #include "hxgrpen2.h"
- #include "carray.h"
- #include "plghand2.h"
- #include "chxuuid.h"
- #include "ihxpckts.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- CHXPlugin2GroupEnumerator::CHXPlugin2GroupEnumerator(
- IHXPlugin2Handler* pPlugin2Handler) :
- m_lRefCount(0)
- {
- m_pPlugin2Handler = pPlugin2Handler;
- m_pPlugin2Handler->AddRef();
- m_pPlugins = NULL;
- m_nPluginCount = 0;
- }
- CHXPlugin2GroupEnumerator::~CHXPlugin2GroupEnumerator()
- {
- HX_DELETE(m_pPlugins);
- HX_RELEASE(m_pPlugin2Handler);
- }
- STDMETHODIMP
- CHXPlugin2GroupEnumerator::QueryInterface(REFIID riid, void**ppvObj)
- {
- QInterfaceList qiList[] =
- {
- { GET_IIDHANDLE(IID_IUnknown), (IUnknown*)(IHXPluginGroupEnumerator*)this },
- { GET_IIDHANDLE(IID_IHXPluginGroupEnumerator), (IHXPluginGroupEnumerator*)this },
- { GET_IIDHANDLE(IID_IHXPluginQuery), (IHXPluginQuery*)this },
- };
-
- return ::QIFind(qiList, QILISTSIZE(qiList), riid, ppvObj);
- }
- STDMETHODIMP_(UINT32)
- CHXPlugin2GroupEnumerator::AddRef()
- {
- return InterlockedIncrement(&m_lRefCount);
- }
- STDMETHODIMP_(UINT32)
- CHXPlugin2GroupEnumerator::Release()
- {
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
- delete this;
- return 0;
- }
- STDMETHODIMP
- CHXPlugin2GroupEnumerator::Init(REFIID iid)
- {
- HX_RESULT res = HXR_FAIL;
- INT32 nNumPlugins;
- IHXPlugin2HandlerEnumeratorInterface *pPrivateInterface = NULL;
- HX_DELETE(m_pPlugins);
- m_pPlugins = new CHXSimpleList;
- if ((HXR_OK == m_pPlugin2Handler->QueryInterface(IID_IHXPlugin2HandlerEnumeratorInterface, (void**)& pPrivateInterface)) &&
- pPrivateInterface)
- {
- pPrivateInterface->AddSupportedIID(iid);
- // 1st check to see if the REFIID is in the list of IIDs.
- if (HXR_OK == pPrivateInterface->GetNumPluginsSupporting(iid, (UINT32&)m_nPluginCount))
- {
- nNumPlugins = m_nPluginCount;
- for(;nNumPlugins; nNumPlugins--)
- {
- UINT32 nIndex;
- pPrivateInterface->GetPluginIndexSupportingIID(iid, nNumPlugins-1, nIndex);
- m_pPlugins->AddTail((void*) nIndex);
- }
- res = HXR_OK;
- }
- }
- HX_RELEASE(pPrivateInterface);
- return res;
- }
- STDMETHODIMP_(UINT32)
- CHXPlugin2GroupEnumerator::GetNumOfPlugins()
- {
- return m_nPluginCount;
- }
- STDMETHODIMP
- CHXPlugin2GroupEnumerator::GetPlugin(UINT32 ulIndex, REF(IUnknown*) pPlugin)
- {
- IUnknown* pInstance = NULL;
- HX_ASSERT(ulIndex < m_nPluginCount);
- LISTPOSITION pPos = m_pPlugins->FindIndex(ulIndex);
-
- ULONG32 nPluginIndex = (ULONG32)(PTR_INT)m_pPlugins->GetAt(pPos);
-
- m_pPlugin2Handler->GetInstance(nPluginIndex, pInstance);
- if(pInstance)
- {
- pPlugin = pInstance;
- return HXR_OK;
- }
- else
- {
- return HXR_NOINTERFACE;
- }
- }
- STDMETHODIMP
- CHXPlugin2GroupEnumerator::GetNumPluginsGivenGroup(REFIID riid,
- REF(UINT32) /*OUT*/ unNumPlugins)
- {
- HX_RESULT theErr = HXR_OK;
-
- unNumPlugins = 0;
- theErr = Init(riid);
- if (!theErr)
- {
- unNumPlugins = m_nPluginCount;
- }
- return theErr;
- }
- STDMETHODIMP
- CHXPlugin2GroupEnumerator::GetPluginInfo(REFIID riid, UINT32 unIndex,
- REF(IHXValues*) /*OUT*/ pValues)
- {
- IUnknown* pInstance = NULL;
- HX_ASSERT(unIndex < m_nPluginCount);
- LISTPOSITION pPos = m_pPlugins->FindIndex(unIndex);
-
- ULONG32 nPluginIndex = (ULONG32)(PTR_INT)m_pPlugins->GetAt(pPos);
- m_pPlugin2Handler->GetPluginInfo(nPluginIndex, pValues);
- return pValues ? HXR_OK : HXR_FAIL;
- }