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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/.
*/
#include "BufferedStreamSocket.hxx"
#include <osl/socket.hxx>
#include <sal/log.hxx>
#include <algorithm>
#ifdef _WIN32
// LO vs WinAPI conflict
#undef WB_LEFT
#undef WB_RIGHT
#include <winsock2.h>
#else
#include <sys/socket.h>
#include <unistd.h>
#endif
using namespace sd;
using namespace osl;
BufferedStreamSocket::BufferedStreamSocket( const osl::StreamSocket &aSocket ):
StreamSocket( aSocket ),
aRead( 0 ),
mSocket( 0 ),
usingCSocket( false )
{
}
BufferedStreamSocket::BufferedStreamSocket( int aSocket ):
aRead( 0 ),
mSocket( aSocket ),
usingCSocket( true )
{
}
BufferedStreamSocket::~BufferedStreamSocket() {
close();
}
void BufferedStreamSocket::getPeerAddr(osl::SocketAddr& rAddr)
{
assert ( !usingCSocket );
StreamSocket::getPeerAddr( rAddr );
}
sal_Int32 BufferedStreamSocket::write( const void* pBuffer, sal_uInt32 n )
{
if ( !usingCSocket )
return StreamSocket::write( pBuffer, n );
else
return ::send(
mSocket,
#if defined(_WIN32)
static_cast<char const *>(pBuffer),
#else
pBuffer,
#endif
static_cast<size_t>(n), 0 );
}
void BufferedStreamSocket::close()
{
if( usingCSocket && mSocket != -1 )
{
#ifdef _WIN32
::closesocket( mSocket );
#else
::close( mSocket );
#endif
mSocket = -1;
}
else
::osl::StreamSocket::close();
}
sal_Int32 BufferedStreamSocket::readLine( OString& aLine )
{
while ( true )
{
// Process buffer first in case data already present.
std::vector<char>::iterator aIt;
if ( (aIt = find( aBuffer.begin(), aBuffer.end(), '\n' ))
!= aBuffer.end() )
{
sal_uInt64 aLocation = aIt - aBuffer.begin();
aLine = OString( &(*aBuffer.begin()), aLocation );
aBuffer.erase( aBuffer.begin(), aIt + 1 ); // Also delete the empty line
aRead -= (aLocation + 1);
SAL_INFO( "sdremote.bluetooth", "recv line '" << aLine << "'" );
return aLine.getLength() + 1;
}
// Then try and receive if nothing present
aBuffer.resize( aRead + 100 );
sal_Int32 nRet;
if (!usingCSocket)
{
// coverity[ tainted_data_return : FALSE ] version 2023.12.2
nRet = StreamSocket::recv( &aBuffer[aRead], 100 );
}
else
nRet = ::recv( mSocket, &aBuffer[aRead], 100, 0 );
SAL_INFO( "sdremote.bluetooth", "recv " << nRet << " aBuffer len " << aBuffer.size() );
if (nRet <= 0)
return 0;
// Prevent buffer from growing massively large.
if ( aRead > MAX_LINE_LENGTH )
{
aBuffer.clear();
return 0;
}
aRead += nRet;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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