datffact.cpp
上传用户:zhongxx05
上传日期:2007-06-06
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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 ***** */
- #ifndef _MACINTOSH
- //#include "hlxclib/stdio.h"
- #include "hxtypes.h"
- #include "hxcom.h"
- #include "hxresult.h"
- #include "hxdataf.h"
- #include "datffact.h"
- #include "bufdataf.h"
- #include "mmapdatf.h"
- #ifdef _SYMBIAN
- #include "symbihxdataf.h"
- #endif // SYMBIAN
- #ifdef _OPENWAVE
- #include "opwavehxdataf.h"
- #endif
- #include "debug.h"
- #include "hxperf.h"
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // HXDataFileFactory::QueryInterface
- // Purpose:
- // Implement this to export the interfaces supported by your
- // object.
- //
- STDMETHODIMP
- HXDataFileFactory::QueryInterface(REFIID riid, void** ppvObj)
- {
- if (IsEqualIID(riid, IID_IHXDataFileFactory))
- {
- AddRef();
- *ppvObj = (IHXDataFileFactory*)this;
- return HXR_OK;
- }
-
- *ppvObj = NULL;
- return HXR_NOINTERFACE;
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // HXDataFileFactory::AddRef
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32)
- HXDataFileFactory::AddRef()
- {
- DPRINTF(0x5d000000, ("HXDFF::AddRef() = %ldn", m_lRefCount+1));
- return InterlockedIncrement(&m_lRefCount);
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // HXDataFileFactory::Release
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32)
- HXDataFileFactory::Release()
- {
- DPRINTF(0x5d000000, ("HXDFF::Release() = %ldn", m_lRefCount-1));
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
-
- delete this;
- return 0;
- }
- /* Creates a datafile for buffered or unbuffered I/O
- * By default create an IHXDataFile for BUFFERED file I/O
- * for all platforms, except SOLARIS, where UNBUFFERED
- * file I/O is required.
- */
- STDMETHODIMP_(HX_RESULT)
- HXDataFileFactory::CreateFile(REF(IHXDataFile*) pDataFile, IUnknown*
- pContext, REF(IUnknown*) pPersistantObject, BOOL bDisableMemoryMappedIO,
- UINT32 ulChunkSize, BOOL bEnableFileLocking, BOOL bPreferAsyncIO)
- {
- HX_RESULT retVal = HXR_OUTOFMEMORY;
- HX_LOG_BLOCK( "HXDataFileFactory::CreateFile" );
-
- #if defined(_SYMBIAN)
- pDataFile = new CSymbIHXDataFile(&pPersistantObject);
- #elif defined(_OPENWAVE)
- pDataFile = new OpenwaveHXDataFile(&pPersistantObject);
- #elif defined(HELIX_FEATURE_MEMMAP_IO)
- pDataFile = new MemoryMapDataFile(pContext, pPersistantObject,
- bDisableMemoryMappedIO, ulChunkSize, bEnableFileLocking);
- #else // default
- pDataFile = new BufferedDataFile();
- #endif // HELIX_FEATURE_MEMMAP_IO
- if (pDataFile)
- {
- pDataFile->AddRef();
- retVal = HXR_OK;
- }
- return retVal;
- }
- #endif