forked from amazingfate/loongoffice
127 lines
4.5 KiB
C++
127 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <unotools/streamhelper.hxx>
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namespace utl
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{
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void SAL_CALL OInputStreamHelper::acquire() throw ()
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{
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InputStreamHelper_Base::acquire();
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}
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void SAL_CALL OInputStreamHelper::release() throw ()
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{
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InputStreamHelper_Base::release();
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}
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sal_Int32 SAL_CALL OInputStreamHelper::readBytes(css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead)
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throw(css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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if (!m_xLockBytes.Is())
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throw css::io::NotConnectedException(OUString(), static_cast<css::uno::XWeak*>(this));
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if (nBytesToRead < 0)
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throw css::io::BufferSizeExceededException(OUString(), static_cast<css::uno::XWeak*>(this));
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::osl::MutexGuard aGuard( m_aMutex );
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aData.realloc(nBytesToRead);
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sal_Size nRead(0);
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ErrCode nError = m_xLockBytes->ReadAt(m_nActPos, (void*)aData.getArray(), nBytesToRead, &nRead);
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m_nActPos += nRead;
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if (nError != ERRCODE_NONE)
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throw css::io::IOException(OUString(), static_cast<css::uno::XWeak*>(this));
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// adjust sequence if data read is lower than the desired data
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if (nRead < (sal_uInt32)nBytesToRead)
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aData.realloc( nRead );
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return nRead;
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}
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void SAL_CALL OInputStreamHelper::seek( sal_Int64 location ) throw(css::lang::IllegalArgumentException, css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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m_nActPos = location;
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}
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sal_Int64 SAL_CALL OInputStreamHelper::getPosition( ) throw(css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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return m_nActPos;
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}
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sal_Int64 SAL_CALL OInputStreamHelper::getLength( ) throw(css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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if (!m_xLockBytes.Is())
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return 0;
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::osl::MutexGuard aGuard( m_aMutex );
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SvLockBytesStat aStat;
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m_xLockBytes->Stat( &aStat, SVSTATFLAG_DEFAULT );
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return aStat.nSize;
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}
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sal_Int32 SAL_CALL OInputStreamHelper::readSomeBytes(css::uno::Sequence< sal_Int8 >& aData,
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sal_Int32 nMaxBytesToRead)
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throw (css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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// read all data desired
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return readBytes(aData, nMaxBytesToRead);
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}
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void SAL_CALL OInputStreamHelper::skipBytes(sal_Int32 nBytesToSkip)
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throw (css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if (!m_xLockBytes.Is())
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throw css::io::NotConnectedException(OUString(), static_cast<css::uno::XWeak*>(this));
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if (nBytesToSkip < 0)
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throw css::io::BufferSizeExceededException(OUString(), static_cast<css::uno::XWeak*>(this));
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m_nActPos += nBytesToSkip;
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}
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sal_Int32 SAL_CALL OInputStreamHelper::available()
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throw (css::io::NotConnectedException, css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if (!m_xLockBytes.Is())
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throw css::io::NotConnectedException(OUString(), static_cast<css::uno::XWeak*>(this));
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return m_nAvailable;
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}
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void SAL_CALL OInputStreamHelper::closeInput()
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throw (css::io::NotConnectedException, css::io::IOException, css::uno::RuntimeException, std::exception)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if (!m_xLockBytes.Is())
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throw css::io::NotConnectedException(OUString(), static_cast<css::uno::XWeak*>(this));
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m_xLockBytes = NULL;
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}
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} // namespace utl
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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