139 lines
5.2 KiB
C++
139 lines
5.2 KiB
C++
/*************************************************************************
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*
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* $RCSfile: unomemorystream.cxx,v $
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*
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* $Revision: 1.4 $
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*
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* last change: $Author: hr $ $Date: 2001-10-12 17:04:30 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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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 nResize )
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: SvMemoryStream( nInitSize, nResize )
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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 nPos = Tell();
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sal_uInt32 nEnd = Seek( STREAM_SEEK_TO_END );
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Seek( nPos );
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return nEnd - nPos;
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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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