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/* -*- 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 <unotools/unotoolsdllapi.h>
#ifndef INCLUDED_UNOTOOLS_STREAMHELPER_HXX
#define INCLUDED_UNOTOOLS_STREAMHELPER_HXX
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <osl/mutex.hxx>
#include <cppuhelper/implbase2.hxx>
#include <tools/stream.hxx>
namespace utl
{
/**
* The helper implementation for a using input streams based on SvLockBytes.
*
* @author Dirk Grobler
* @since 00/28/03
*/
typedef ::cppu::WeakImplHelper2<css::io::XInputStream, css::io::XSeekable> InputStreamHelper_Base;
// needed for some compilers
class UNOTOOLS_DLLPUBLIC OInputStreamHelper : public InputStreamHelper_Base
{
::osl::Mutex m_aMutex;
SvLockBytesRef m_xLockBytes;
sal_uInt64 m_nActPos;
sal_Int32 m_nAvailable; // this is typically the chunk(buffer) size
public:
OInputStreamHelper(const SvLockBytesRef& _xLockBytes,
sal_uInt32 _nAvailable,
sal_uInt64 _nPos = 0)
:m_xLockBytes(_xLockBytes)
,m_nActPos(_nPos)
,m_nAvailable(_nAvailable){}
// css::uno::XInterface
virtual void SAL_CALL acquire() throw () SAL_OVERRIDE;
virtual void SAL_CALL release() throw () SAL_OVERRIDE;
// css::io::XInputStream
virtual sal_Int32 SAL_CALL readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) throw(css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual sal_Int32 SAL_CALL readSomeBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) throw(css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) throw(css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual sal_Int32 SAL_CALL available( ) throw(css::io::NotConnectedException, css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual void SAL_CALL closeInput( ) throw (css::io::NotConnectedException, css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual void SAL_CALL seek( sal_Int64 location ) throw(css::lang::IllegalArgumentException, css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual sal_Int64 SAL_CALL getPosition( ) throw(css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual sal_Int64 SAL_CALL getLength( ) throw(css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
};
} // namespace utl
#endif // _UNOTOOLS_STREAM_WRAPPER_HXX_
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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