/* -*- 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* pTypeCollection = nullptr ;
if ( pTypeCollection == nullptr )
{
::osl::MutexGuard aGuard( m_xMutex->GetMutex() ) ;
if ( pTypeCollection == nullptr )
{
static ::cppu::OTypeCollection aTypeCollection(
cppu::UnoType<io::XSeekable>::get(),
OInputCompStream::getTypes() );
pTypeCollection = &aTypeCollection ;
}
}
return pTypeCollection->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()
throw()
{
OInputCompStream::acquire();
}
void SAL_CALL OInputSeekStream::release()
throw()
{
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: */
↑ V547 Expression 'pTypeCollection == nullptr' is always true.