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Diffstat (limited to '')
| -rw-r--r-- | package/source/xstor/oseekinstream.cxx | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/package/source/xstor/oseekinstream.cxx b/package/source/xstor/oseekinstream.cxx new file mode 100644 index 000000000..f5e3d644d --- /dev/null +++ b/package/source/xstor/oseekinstream.cxx @@ -0,0 +1,144 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <com/sun/star/lang/DisposedException.hpp> +#include <cppuhelper/typeprovider.hxx> +#include <cppuhelper/queryinterface.hxx> +#include <osl/diagnose.h> +#include <sal/log.hxx> + +#include "oseekinstream.hxx" +#include "owriteablestream.hxx" + +using namespace ::com::sun::star; + +OInputSeekStream::OInputSeekStream( OWriteStream_Impl& pImpl, + uno::Reference < io::XInputStream > const & xStream, + const uno::Sequence< beans::PropertyValue >& aProps, + sal_Int32 nStorageType ) +: OInputCompStream( pImpl, xStream, aProps, nStorageType ) +{ + m_xSeekable.set( m_xStream, uno::UNO_QUERY ); + OSL_ENSURE( m_xSeekable.is(), "No seeking support!" ); +} + +OInputSeekStream::OInputSeekStream( uno::Reference < io::XInputStream > const & xStream, + const uno::Sequence< beans::PropertyValue >& aProps, + sal_Int32 nStorageType ) +: OInputCompStream( xStream, aProps, nStorageType ) +{ + m_xSeekable.set( m_xStream, uno::UNO_QUERY ); + OSL_ENSURE( m_xSeekable.is(), "No seeking support!" ); +} + +OInputSeekStream::~OInputSeekStream() +{ +} + +uno::Sequence< uno::Type > SAL_CALL OInputSeekStream::getTypes() +{ + static cppu::OTypeCollection aTypeCollection(cppu::UnoType<io::XSeekable>::get(), + OInputCompStream::getTypes()); + + return aTypeCollection.getTypes(); +} + +uno::Any SAL_CALL OInputSeekStream::queryInterface( const uno::Type& rType ) +{ + // Attention: + // Don't use mutex or guard in this method!!! Is a method of XInterface. + + uno::Any aReturn( ::cppu::queryInterface( rType, + static_cast< io::XSeekable* >( this ) ) ); + + if ( aReturn.hasValue() ) + { + return aReturn ; + } + + return OInputCompStream::queryInterface( rType ) ; +} + +void SAL_CALL OInputSeekStream::acquire() + noexcept +{ + OInputCompStream::acquire(); +} + +void SAL_CALL OInputSeekStream::release() + noexcept +{ + OInputCompStream::release(); +} + +void SAL_CALL OInputSeekStream::seek( sal_Int64 location ) +{ + ::osl::MutexGuard aGuard( m_xMutex->GetMutex() ); + if ( m_bDisposed ) + { + SAL_INFO("package.xstor", "Disposed!"); + throw lang::DisposedException(); + } + + if ( !m_xSeekable.is() ) + { + SAL_INFO("package.xstor", "No seekable!"); + throw uno::RuntimeException(); + } + + m_xSeekable->seek( location ); +} + +sal_Int64 SAL_CALL OInputSeekStream::getPosition() +{ + ::osl::MutexGuard aGuard( m_xMutex->GetMutex() ); + if ( m_bDisposed ) + { + SAL_INFO("package.xstor", "Disposed!"); + throw lang::DisposedException(); + } + + if ( !m_xSeekable.is() ) + { + SAL_INFO("package.xstor", "No seekable!"); + throw uno::RuntimeException(); + } + + return m_xSeekable->getPosition(); +} + +sal_Int64 SAL_CALL OInputSeekStream::getLength() +{ + ::osl::MutexGuard aGuard( m_xMutex->GetMutex() ); + if ( m_bDisposed ) + { + SAL_INFO("package.xstor", "Disposed!"); + throw lang::DisposedException(); + } + + if ( !m_xSeekable.is() ) + { + SAL_INFO("package.xstor", "No seekable!"); + throw uno::RuntimeException(); + } + + return m_xSeekable->getLength(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |