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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 <osl/security.hxx>
#include "acceptor.hxx"
#include <com/sun/star/connection/XConnection.hpp>
#include <com/sun/star/connection/ConnectionSetupException.hpp>
#include <com/sun/star/io/IOException.hpp>
#include <osl/diagnose.h>
#include <osl/mutex.hxx>
#include <cppuhelper/implbase.hxx>
using namespace ::osl;
using namespace ::cppu;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::connection;
using namespace ::com::sun::star::io;
namespace io_acceptor
{
namespace {
class PipeConnection :
public WeakImplHelper< XConnection >
{
public:
explicit PipeConnection( const OUString &sConnectionDescription);
virtual sal_Int32 SAL_CALL read( Sequence< sal_Int8 >& aReadBytes, sal_Int32 nBytesToRead ) override;
virtual void SAL_CALL write( const Sequence< sal_Int8 >& aData ) override;
virtual void SAL_CALL flush( ) override;
virtual void SAL_CALL close( ) override;
virtual OUString SAL_CALL getDescription( ) override;
public:
::osl::StreamPipe m_pipe;
oslInterlockedCount m_nStatus;
OUString m_sDescription;
};
}
PipeConnection::PipeConnection( const OUString &sConnectionDescription) :
m_nStatus( 0 ),
m_sDescription( sConnectionDescription )
{
// make it unique
m_sDescription += ",uniqueValue=";
m_sDescription += OUString::number(
sal::static_int_cast<sal_Int64 >(
reinterpret_cast< sal_IntPtr >(&m_pipe)) );
}
sal_Int32 PipeConnection::read( Sequence < sal_Int8 > & aReadBytes , sal_Int32 nBytesToRead )
{
if( m_nStatus )
{
throw IOException();
}
if( aReadBytes.getLength() < nBytesToRead )
{
aReadBytes.realloc( nBytesToRead );
}
sal_Int32 n = m_pipe.read( aReadBytes.getArray(), nBytesToRead );
OSL_ASSERT( n >= 0 && n <= aReadBytes.getLength() );
if( n < aReadBytes.getLength() )
{
aReadBytes.realloc( n );
}
return n;
}
void PipeConnection::write( const Sequence < sal_Int8 > &seq )
{
if( m_nStatus )
{
throw IOException();
}
if( m_pipe.write( seq.getConstArray() , seq.getLength() ) != seq.getLength() )
{
throw IOException();
}
}
void PipeConnection::flush( )
{
}
void PipeConnection::close()
{
if( 1 == osl_atomic_increment( (&m_nStatus) ) )
{
m_pipe.close();
}
}
OUString PipeConnection::getDescription()
{
return m_sDescription;
}
/***************
* PipeAcceptor
**************/
PipeAcceptor::PipeAcceptor( const OUString &sPipeName , const OUString & sConnectionDescription) :
m_sPipeName( sPipeName ),
m_sConnectionDescription( sConnectionDescription ),
m_bClosed( false )
{
}
void PipeAcceptor::init()
{
m_pipe = Pipe( m_sPipeName.pData , osl_Pipe_CREATE , osl::Security() );
if( ! m_pipe.is() )
{
OUString error = "io.acceptor: Couldn't setup pipe " + m_sPipeName;
throw ConnectionSetupException( error );
}
}
Reference< XConnection > PipeAcceptor::accept( )
{
Pipe pipe;
{
MutexGuard guard( m_mutex );
pipe = m_pipe;
}
if( ! pipe.is() )
{
OUString error = "io.acceptor: pipe already closed" + m_sPipeName;
throw ConnectionSetupException( error );
}
std::unique_ptr<PipeConnection> pConn(new PipeConnection( m_sConnectionDescription ));
oslPipeError status = pipe.accept( pConn->m_pipe );
if( m_bClosed )
{
// stopAccepting was called !
return Reference < XConnection >();
}
else if( osl_Pipe_E_None == status )
{
return Reference < XConnection > ( static_cast<XConnection *>(pConn.release()) );
}
else
{
OUString error = "io.acceptor: Couldn't setup pipe " + m_sPipeName;
throw ConnectionSetupException( error );
}
}
void PipeAcceptor::stopAccepting()
{
m_bClosed = true;
Pipe pipe;
{
MutexGuard guard( m_mutex );
pipe = m_pipe;
m_pipe.clear();
}
if( pipe.is() )
{
pipe.close();
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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