126 lines
3.6 KiB
C++
126 lines
3.6 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 <sal/config.h>
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#include <com/sun/star/io/IOException.hpp>
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#include <com/sun/star/io/NotConnectedException.hpp>
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#include <cppuhelper/queryinterface.hxx>
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#include "gio_seekable.hxx"
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#include "gio_content.hxx"
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namespace gio
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{
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Seekable::Seekable(GSeekable *pStream) : mpStream(pStream)
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{
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if (!mpStream)
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throw css::io::NotConnectedException();
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}
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Seekable::~Seekable()
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{
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}
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void SAL_CALL Seekable::truncate()
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{
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if (!mpStream)
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throw css::io::NotConnectedException();
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if (!g_seekable_can_truncate(mpStream))
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throw css::io::IOException(u"Truncate unsupported"_ustr,
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getXWeak());
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GError *pError=nullptr;
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if (!g_seekable_truncate(mpStream, 0, nullptr, &pError))
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convertToIOException(pError, getXWeak());
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}
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void SAL_CALL Seekable::seek( sal_Int64 location )
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{
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if (!mpStream)
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throw css::io::NotConnectedException();
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if (!g_seekable_can_seek(mpStream))
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throw css::io::IOException(u"Seek unsupported"_ustr,
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getXWeak());
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GError *pError=nullptr;
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if (!g_seekable_seek(mpStream, location, G_SEEK_SET, nullptr, &pError))
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convertToIOException(pError, getXWeak());
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}
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sal_Int64 SAL_CALL Seekable::getPosition()
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{
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if (!mpStream)
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throw css::io::NotConnectedException();
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return g_seekable_tell(mpStream);
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}
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sal_Int64 SAL_CALL Seekable::getLength()
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{
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if (!mpStream)
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throw css::io::NotConnectedException();
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bool bOk = false;
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sal_uInt64 nSize = 0;
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GFileInfo* pInfo = G_IS_FILE_INPUT_STREAM(mpStream)
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? g_file_input_stream_query_info(G_FILE_INPUT_STREAM(mpStream), G_FILE_ATTRIBUTE_STANDARD_SIZE, nullptr, nullptr)
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: g_file_output_stream_query_info(G_FILE_OUTPUT_STREAM(mpStream), G_FILE_ATTRIBUTE_STANDARD_SIZE, nullptr, nullptr);
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if (pInfo)
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{
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if (g_file_info_has_attribute(pInfo, G_FILE_ATTRIBUTE_STANDARD_SIZE))
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{
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nSize = g_file_info_get_size(pInfo);
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bOk = true;
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}
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g_object_unref(pInfo);
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}
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if (!bOk)
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{
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GError *pError=nullptr;
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sal_Int64 nCurr = getPosition();
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if (!g_seekable_seek(mpStream, 0, G_SEEK_END, nullptr, &pError))
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convertToIOException(pError, getXWeak());
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nSize = getPosition();
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seek(nCurr);
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}
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return nSize;
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}
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css::uno::Any Seekable::queryInterface( const css::uno::Type &type )
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{
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css::uno::Any aRet = ::cppu::queryInterface ( type,
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static_cast< XSeekable * >( this ) );
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if (!aRet.hasValue() && g_seekable_can_truncate(mpStream))
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aRet = ::cppu::queryInterface ( type, static_cast< XTruncate * >( this ) );
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return aRet.hasValue() ? aRet : OWeakObject::queryInterface( type );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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