bool IBConnection::connect()
{
LBASSERT( _description->type == CONNECTIONTYPE_IB );
if( _state != STATE_CLOSED )
return false;
_state = STATE_CONNECTING;
_fireStateChanged();
_socketConnection = new SocketConnection();
ConnectionDescriptionPtr description =
new ConnectionDescription( *_description );
description->type = CONNECTIONTYPE_TCPIP;
_socketConnection->setDescription( description );
// 1 : TCPIP Connection
if ( !_socketConnection->connect() ||
!_preRegister() ||
!_establish( false ))
{
_socketConnection->close();
_socketConnection = 0;
return false;
}
LBINFO << "Connected " << _description << std::endl;
return true;
}
void PGMConnection::close()
{
if( _state == STATE_CLOSED )
return;
_printReadStatistics();
_printSendStatistics();
if( isListening( ))
_exitAIOAccept();
else if( isConnected( ))
_exitAIORead();
_state = STATE_CLOSED;
EQASSERT( _readFD > 0 );
if( _readFD > 0 )
{
const std::string& iName = _description->getInterface();
if( !iName.empty( ))
{
unsigned long interface;
if( !_parseHostname( iName, interface ) ||
::setsockopt( _readFD, IPPROTO_RM, RM_DEL_RECEIVE_IF,
(char*)&interface, sizeof(uint32_t)) == SOCKET_ERROR )
{
EQWARN << "can't delete recv interface " << base::sysError
<< std::endl;
}
}
#ifdef _WIN32
const bool closed = ( ::closesocket( _readFD ) == 0 );
#else
const bool closed = ( ::close( _readFD ) == 0 );
#endif
if( !closed )
EQWARN << "Could not close read socket: " << base::sysError
<< std::endl;
}
if( _writeFD > 0 && isListening( ))
{
#ifdef _WIN32
const bool closed = ( ::closesocket( _writeFD ) == 0 );
#else
const bool closed = ( ::close( _writeFD ) == 0 );
#endif
if( !closed )
EQWARN << "Could not close write socket: " << base::sysError
<< std::endl;
}
_readFD = INVALID_SOCKET;
_writeFD = INVALID_SOCKET;
_fireStateChanged();
}
void MCIPConnection::notifyStateChanged( Connection* connection )
{
EQASSERT( _impl == connection );
if( _state == connection->getState( ))
return;
_state = connection->getState();
_fireStateChanged();
}
bool IBConnection::_establish( bool isServer )
{
for ( int i = 0; i < EQ_NUMCONN_IB; i++ )
if ( !_establish( isServer, i ))
{
_socketConnection->close();
_socketConnection = 0;
return false;
}
_socketConnection->close();
_socketConnection = 0;
_state = STATE_CONNECTED;
_fireStateChanged();
return true;
}
void IBConnection::_close()
{
if( !(_state == STATE_CONNECTED || _state == STATE_LISTENING ))
return;
if( _socketConnection.isValid( ))
_socketConnection->close();
_socketConnection = 0;
for ( int i = 0; i < EQ_NUMCONN_IB; i++ )
{
_interfaces[i]->close();
_completionQueues[i]->close();
}
_adapter.close();
_state = STATE_CLOSED;
_fireStateChanged();
}
bool IBConnection::listen()
{
LBASSERT( _description->type == CONNECTIONTYPE_IB );
_socketConnection = new SocketConnection();
ConnectionDescription* description =
new ConnectionDescription( *_description );
description->type = CONNECTIONTYPE_TCPIP;
_socketConnection->setDescription( description );
if( !_socketConnection->listen())
{
close();
return false;
}
_state = _socketConnection->getState();
_fireStateChanged();
return ( _state == STATE_LISTENING );
}
//----------------------------------------------------------------------
// listen
//----------------------------------------------------------------------
bool PGMConnection::listen()
{
EQASSERT( _description->type == CONNECTIONTYPE_PGM );
if( _state != STATE_CLOSED )
return false;
_state = STATE_CONNECTING;
_fireStateChanged();
sockaddr_in address;
const size_t size = sizeof( sockaddr_in );
if( !_parseAddress( address ))
{
EQWARN << "Can't parse connection parameters" << std::endl;
return false;
}
//-- create a 'listening' read socket
_readFD = _initSocket( address );
if( _readFD == INVALID_SOCKET || !_setupReadSocket( ))
{
close();
return false;
}
const bool listening = (::listen( _readFD, 10 ) == 0);
if( !listening )
{
EQWARN << "Could not listen on socket: " << base::sysError
<< std::endl;
close();
return false;
}
// get listening socket parameters
socklen_t used = size;
getsockname( _readFD, (struct sockaddr *)&address, &used );
_description->port = ntohs( address.sin_port );
const std::string& hostname = _description->getHostname();
if( hostname.empty( ))
{
if( address.sin_addr.s_addr == INADDR_ANY )
{
char cHostname[256];
gethostname( cHostname, 256 );
_description->setHostname( cHostname );
}
else
_description->setHostname( inet_ntoa( address.sin_addr ));
}
_initAIOAccept();
//-- create a connected 'write' socket
address.sin_family = AF_INET;
address.sin_addr.s_addr = htonl( INADDR_ANY );
address.sin_port = htons( 0 );
memset( &(address.sin_zero), 0, 8 ); // zero the rest
_writeFD = _initSocket( address );
if( _writeFD == INVALID_SOCKET || !_setupSendSocket( ))
{
close();
return false;
}
_parseAddress( address );
#ifdef _WIN32
const bool connected = WSAConnect( _writeFD, (sockaddr*)&address,
size, 0, 0, 0, 0 ) == 0;
#else
const bool connected = (::connect( _readFD, (sockaddr*)&address,
size ) == 0);
#endif
if( !connected )
{
EQWARN << "Could not connect to '" << _description->getHostname() << ":"
<< _description->port << "': " << base::sysError
<< std::endl;
close();
return false;
}
_state = STATE_LISTENING;
_fireStateChanged();
EQINFO << "Listening on " << _description->getHostname() << "["
<< inet_ntoa( address.sin_addr ) << "]:" << _description->port
<< " (" << _description->toString() << ")" << std::endl;
return true;
}