cchx2ihxdataf.cpp
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上传日期:2007-06-06
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- /* ***** 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 ***** */
- /****************************************************************************
- * Includes
- */
- #include "hlxclib/string.h"
- #include "hlxclib/fcntl.h"
- #include "hlxclib/sys/stat.h"
- #include "hxbuffer.h"
- #include "hxassert.h"
- #include "chxdataf.h"
- #include "cchx2ihxdataf.h"
- /****************************************************************************
- * CCHX2IHXDataFile
- */
- /****************************************************************************
- * Constructor/Destructor
- */
- CCHX2IHXDataFile::CCHX2IHXDataFile(IHXDataFile* pIHXFile,
- void* pUserData,
- TemporaryFileNameFnPtr fpTempFileName,
- FastReadFnPtr fpFastRead,
- FastReadFnPtr fpFastWrite,
- FileDeleteFnPtr fpFileDelete)
- : m_pIHXFile(pIHXFile)
- , m_pUserData(pUserData)
- , m_fpFileDelete(fpFileDelete)
- , m_fpTempFileName(fpTempFileName)
- , m_fpFastRead(fpFastRead)
- , m_fpFastWrite(fpFastWrite)
- {
- if (m_pIHXFile)
- {
- m_pIHXFile->AddRef();
- }
- }
- CCHX2IHXDataFile::~CCHX2IHXDataFile(void)
- {
- HX_RELEASE(m_pIHXFile);
- }
- /****************************************************************************
- * CHXDataFile methods
- */
- HX_RESULT CCHX2IHXDataFile::GetLastError(void)
- {
- HX_RESULT retVal = HXR_OK;
- if (m_pIHXFile)
- {
- retVal = m_pIHXFile->GetLastError();
- }
- return retVal;
- }
- BOOL CCHX2IHXDataFile::GetTemporaryFileName(const char *tag, char* name, UINT32 ulBufLen)
- {
- BOOL bRetVal = FALSE;
- if (m_fpTempFileName)
- {
- bRetVal = (*m_fpTempFileName)(m_pUserData, tag, name, ulBufLen);
- }
- return bRetVal;
- }
- HX_RESULT CCHX2IHXDataFile::Create(const char *filename, UINT16 mode, BOOL textflag)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pIHXFile)
- {
- m_pIHXFile->Bind(filename);
- retVal = m_pIHXFile->Create(TranslateMode(mode, textflag));
- }
- return retVal;
- }
- HX_RESULT CCHX2IHXDataFile::Open(const char *filename, UINT16 mode, BOOL textflag)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pIHXFile)
- {
- m_pIHXFile->Bind(filename);
- retVal = m_pIHXFile->Open(TranslateMode(mode, textflag));
- }
- return retVal;
- }
- HX_RESULT CCHX2IHXDataFile::Close(void)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pIHXFile)
- {
- retVal = m_pIHXFile->Close();
- }
- return retVal;
- }
- ULONG32 CCHX2IHXDataFile::GetSize(void)
- {
- ULONG32 ulSize = 0;
- if (m_pIHXFile)
- {
- struct stat statBuffer;
- if (m_pIHXFile->IsOpen())
- {
- ULONG32 ulCurrPos = m_pIHXFile->Tell();
- ulSize = m_pIHXFile->Seek(0, SEEK_END);
- m_pIHXFile->Seek(ulCurrPos, SEEK_SET);
- }
- else if (m_pIHXFile->Stat(&statBuffer) == HXR_OK)
- {
- ulSize = statBuffer.st_size;
- }
- }
- return ulSize;
- }
- HX_RESULT CCHX2IHXDataFile::Seek(ULONG32 offset, UINT16 fromWhere)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pIHXFile)
- {
- retVal = m_pIHXFile->Seek(offset, fromWhere);
- }
- return retVal;
- }
- ULONG32 CCHX2IHXDataFile::Tell(void)
- {
- ULONG32 ulPos = 0;
- if (m_pIHXFile)
- {
- ulPos = m_pIHXFile->Tell();
- }
- return ulPos;
- }
- ULONG32 CCHX2IHXDataFile::Read(char* buf, ULONG32 count)
- {
- ULONG32 ulBytesRead = 0;
- if (m_pIHXFile)
- {
- if (m_fpFastRead)
- {
- ulBytesRead = m_fpFastRead(m_pUserData, buf, count);
- }
- else
- {
- IHXBuffer* pBuffer = NULL;
- ulBytesRead = m_pIHXFile->Read(pBuffer, count);
- if (ulBytesRead != 0)
- {
- if (ulBytesRead <= count)
- {
- memcpy(buf, pBuffer->GetBuffer(), count); /* Flawfinder: ignore */
- }
- else
- {
- ulBytesRead = 0;
- }
- }
- HX_RELEASE(pBuffer);
- }
- }
- return ulBytesRead;
- }
- HX_RESULT CCHX2IHXDataFile::ReadToBuffer(ULONG32 ulCount, IHXBuffer** ppbufOut)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pIHXFile)
- {
- UINT32 ulRead = m_pIHXFile->Read(*ppbufOut, ulCount);
- if ((ulRead == ulCount) || ((ulRead != 0) && (ulRead < ulCount)))
- {
- retVal = HXR_OK;
- }
- }
- return retVal;
- }
- ULONG32 CCHX2IHXDataFile::Write(const char* buf, ULONG32 count)
- {
- ULONG32 ulBytesWritten = 0;
- if (m_pIHXFile)
- {
- if (m_fpFastWrite)
- {
- ulBytesWritten = m_fpFastWrite(m_pUserData, buf, count);
- }
- else
- {
- IHXBuffer* pBuffer = new CHXBuffer();
- if (pBuffer)
- {
- pBuffer->AddRef();
- if ((count != 0) && (pBuffer->SetSize(count) == HXR_OK))
- {
- memcpy(pBuffer->GetBuffer(), buf, count); /* Flawfinder: ignore */
- ulBytesWritten = m_pIHXFile->Write(pBuffer);
- }
- pBuffer->Release();
- }
- }
- }
- return ulBytesWritten;
- }
- HX_RESULT CCHX2IHXDataFile::Rewind(void)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pIHXFile)
- {
- retVal = m_pIHXFile->Seek(0, SEEK_SET);
- }
- return retVal;
- }
- INT16 CCHX2IHXDataFile::GetFd(void)
- {
- INT16 iFd = -1;
- if (m_pIHXFile)
- {
- iFd = m_pIHXFile->GetFd();
- }
- return iFd;
- }
- HX_RESULT CCHX2IHXDataFile::Delete(const char *filename)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (m_pIHXFile)
- {
- if (m_pIHXFile->IsOpen())
- {
- IHXBuffer* pNameBuffer = NULL;
- if (m_pIHXFile->Name(pNameBuffer) && pNameBuffer)
- {
- if (strcmp(filename, (const char*) pNameBuffer->GetBuffer()))
- {
- retVal = m_pIHXFile->Delete();
- }
- else
- {
- if (m_fpFileDelete)
- {
- retVal = m_fpFileDelete(m_pUserData, filename);
- }
- else
- {
- m_pIHXFile->Bind(filename);
- retVal = m_pIHXFile->Delete();
- }
- }
- pNameBuffer->Release();
- }
- }
- else
- {
- m_pIHXFile->Bind(filename);
- retVal = m_pIHXFile->Delete();
- }
- }
- return retVal;
- }
- /************************************************************************
- * Private methods
- */
- UINT16 CCHX2IHXDataFile::TranslateMode(UINT16 uOpenMode, BOOL bTextFlag)
- {
- UINT16 uMode = 0;
-
- if (uOpenMode & O_RDWR)
- {
- uMode |= (HX_FILEFLAG_READ | HX_FILEFLAG_WRITE);
- }
- else if (uOpenMode & O_RDONLY)
- {
- uMode |= HX_FILEFLAG_READ;
- }
- else if (uOpenMode & O_WRONLY)
- {
- uMode |= HX_FILEFLAG_WRITE;
- }
- if ((uOpenMode & O_BINARY) && (!bTextFlag))
- {
- uMode |= HX_FILEFLAG_BINARY;
- }
- return uMode;
- }