diff options
Diffstat (limited to 'comphelper/source/streaming/oslfile2streamwrap.cxx')
| -rw-r--r-- | comphelper/source/streaming/oslfile2streamwrap.cxx | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/comphelper/source/streaming/oslfile2streamwrap.cxx b/comphelper/source/streaming/oslfile2streamwrap.cxx new file mode 100644 index 000000000000..9cf8eeaaf08a --- /dev/null +++ b/comphelper/source/streaming/oslfile2streamwrap.cxx @@ -0,0 +1,198 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_comphelper.hxx" +#include <comphelper/oslfile2streamwrap.hxx> + +#include <algorithm> + +namespace comphelper +{ + using namespace osl; + +//------------------------------------------------------------------ +OSLInputStreamWrapper::OSLInputStreamWrapper( File& _rFile ) + :m_pFile(&_rFile) + ,m_bFileOwner(sal_False) +{ +} + +//------------------------------------------------------------------ +OSLInputStreamWrapper::OSLInputStreamWrapper( File* pStream, sal_Bool bOwner ) + :m_pFile( pStream ) + ,m_bFileOwner( bOwner ) +{ +} + +//------------------------------------------------------------------ +OSLInputStreamWrapper::~OSLInputStreamWrapper() +{ + if( m_bFileOwner ) + delete m_pFile; +} + +//------------------------------------------------------------------------------ +sal_Int32 SAL_CALL OSLInputStreamWrapper::readBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) + throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException ) +{ + if (!m_pFile) + throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this)); + + if (nBytesToRead < 0) + throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this)); + + ::osl::MutexGuard aGuard( m_aMutex ); + + aData.realloc(nBytesToRead); + + sal_uInt64 nRead = 0; + FileBase::RC eError = m_pFile->read((void*)aData.getArray(), nBytesToRead, nRead); + if (eError != FileBase::E_None) + throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this)); + + // Wenn gelesene Zeichen < MaxLength, staruno::Sequence anpassen + if (nRead < (sal_uInt32)nBytesToRead) + aData.realloc( sal::static_int_cast< sal_Int32 >(nRead) ); + + return sal::static_int_cast< sal_Int32 >(nRead); +} + +//------------------------------------------------------------------------------ +sal_Int32 SAL_CALL OSLInputStreamWrapper::readSomeBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException ) +{ + if (!m_pFile) + throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this)); + + if (nMaxBytesToRead < 0) + throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this)); + + /* + if (m_pFile->IsEof()) + { + aData.realloc(0); + return 0; + } + else + */ + return readBytes(aData, nMaxBytesToRead); +} + +//------------------------------------------------------------------------------ +void SAL_CALL OSLInputStreamWrapper::skipBytes(sal_Int32 nBytesToSkip) throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException ) +{ + ::osl::MutexGuard aGuard( m_aMutex ); + if (!m_pFile) + throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this)); + + sal_uInt64 nCurrentPos; + m_pFile->getPos(nCurrentPos); + + sal_uInt64 nNewPos = nCurrentPos + nBytesToSkip; + FileBase::RC eError = m_pFile->setPos(osl_Pos_Absolut, nNewPos); + if (eError != FileBase::E_None) + { + throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this)); + } + +#ifdef DBG_UTIL + m_pFile->getPos(nCurrentPos); +// volatile int dummy = 0; // to take a look at last changes ;-) +#endif +} + +//------------------------------------------------------------------------------ +sal_Int32 SAL_CALL OSLInputStreamWrapper::available() throw( stario::NotConnectedException, staruno::RuntimeException ) +{ + ::osl::MutexGuard aGuard( m_aMutex ); + if (!m_pFile) + throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this)); + + sal_uInt64 nPos; + FileBase::RC eError = m_pFile->getPos(nPos); + if (eError != FileBase::E_None) + throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this)); + + sal_uInt64 nDummy = 0; + eError = m_pFile->setPos(Pos_End, nDummy); + if (eError != FileBase::E_None) + throw stario::NotConnectedException(::rtl::OUString(),static_cast<staruno::XWeak*>(this)); + + sal_uInt64 nAvailable; + eError = m_pFile->getPos(nAvailable); + if (eError != FileBase::E_None) + throw stario::NotConnectedException(::rtl::OUString(),static_cast<staruno::XWeak*>(this)); + + nAvailable = nAvailable - nPos; + eError = m_pFile->setPos(Pos_Absolut, nPos); + if (eError != FileBase::E_None) + throw stario::NotConnectedException(::rtl::OUString(),static_cast<staruno::XWeak*>(this)); + return sal::static_int_cast< sal_Int32 >( + std::max(nAvailable, sal::static_int_cast< sal_uInt64 >(SAL_MAX_INT32))); +} + +//------------------------------------------------------------------------------ +void SAL_CALL OSLInputStreamWrapper::closeInput() throw( stario::NotConnectedException, staruno::RuntimeException ) +{ + if (!m_pFile) + throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this)); + + m_pFile->close(); + if (m_bFileOwner) + delete m_pFile; + + m_pFile = NULL; +} + +/*************************************************************************/ +// stario::XOutputStream +//------------------------------------------------------------------------------ +void SAL_CALL OSLOutputStreamWrapper::writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException ) +{ + sal_uInt64 nWritten; + FileBase::RC eError = rFile.write(aData.getConstArray(),aData.getLength(), nWritten); + if (eError != FileBase::E_None + || nWritten != sal::static_int_cast< sal_uInt32 >(aData.getLength())) + { + throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this)); + } +} + +//------------------------------------------------------------------ +void SAL_CALL OSLOutputStreamWrapper::flush() throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException ) +{ +} + +//------------------------------------------------------------------ +void SAL_CALL OSLOutputStreamWrapper::closeOutput() throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException ) +{ + rFile.close(); +} + +} // namespace comphelper + + |