112 lines
4.1 KiB
C++
112 lines
4.1 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: unomemorystream.cxx,v $
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* $Revision: 1.8 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_toolkit.hxx"
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#include <toolkit/helper/unomemorystream.hxx>
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#include <algorithm>
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// ----------------------------------------------------
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// class UnoMemoryStream
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// ----------------------------------------------------
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UnoMemoryStream::UnoMemoryStream( sal_uInt32 nInitSize, sal_uInt32 nInitResize )
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: SvMemoryStream( nInitSize, nInitResize )
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{
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}
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// ::com::sun::star::uno::XInterface
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::com::sun::star::uno::Any UnoMemoryStream::queryInterface( const ::com::sun::star::uno::Type & rType ) throw(::com::sun::star::uno::RuntimeException)
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{
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::com::sun::star::uno::Any aRet = ::cppu::queryInterface( rType,
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SAL_STATIC_CAST( ::com::sun::star::io::XInputStream*, this ) );
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return (aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ));
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}
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// ::com::sun::star::io::XInputStream
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sal_Int32 UnoMemoryStream::readBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& rData, sal_Int32 nBytesToRead ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
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sal_Int32 nRead = available();
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if ( nRead > nBytesToRead )
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nRead = nBytesToRead;
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rData = ::com::sun::star::uno::Sequence< sal_Int8 >( nRead );
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Read( rData.getArray(), nRead );
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return nRead;
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}
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sal_Int32 UnoMemoryStream::readSomeBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& rData, sal_Int32 nMaxBytesToRead ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
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sal_Int32 nAvailable = available();
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if( nAvailable )
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{
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return readBytes( rData, std::min( nMaxBytesToRead , nAvailable ) );
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}
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else
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{
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// Not the most effective method, but it sticks to the specification
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return readBytes( rData, 1 );
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}
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}
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void UnoMemoryStream::skipBytes( sal_Int32 nBytesToSkip ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
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SeekRel( nBytesToSkip );
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}
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sal_Int32 UnoMemoryStream::available() throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
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sal_uInt32 nStreamPos = Tell();
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sal_uInt32 nEnd = Seek( STREAM_SEEK_TO_END );
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Seek( nStreamPos );
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return nEnd - nStreamPos;
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}
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void UnoMemoryStream::closeInput() throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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// nothing to do
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}
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