/**
* Initializes this as a dynamic client
*/
bool DynamicClientInitializer::initializeClient()
{
if ( !basicInit() )
{
LOG_ERR ( "Basic initialization failed" );
return false;
}
LOG ( "Basic initialization done" );
// Second: Creating an UDP socket, to send the NMS_INIT broadcast
if ( !setupUdpSocket() )
{
return false;
}
// Send the NMS_INIT message, and wait for an acceptable response, or the occurrence of a timeout
LOG ( "Sending UDP" );
if ( !sendUdpMessage() )
{
if ( getLastErrorCode() != ErrorCodes::TIMEOUT )
{
LOG ( "Cannot send UDP message" );
setLastErrorCode ( 888 );
}
else if ( getLastErrorCode() == ErrorCodes::TIMEOUT )
{
LOG ( "Timeout ..." );
}
return false;
}
if ( daemonFirstResponse == COMMAND_NOINIT ) // NOINIT ... unknown reasons
{
LOG ( "Not a valid response from daemon" );
return false;
}
if ( !analyzeResponse ( daemonFirstResponse.c_str() ) )
{
LOG ( "Could not analyze the daemons response" );
return false;
}
return true;
}
int CUdpClient::sendMessage(const std::string &msg, std::string &answ)
{
if (sendUdpMessage(m_sock, m_serverAddr, msg))
return -1;
// read
CUdpMsgStore store;
struct pollfd polling[1];
polling[0].revents = 0;
polling[0].events = POLLIN;
polling[0].fd = m_sock;
for (; poll(polling, 1, CUDPCLIENT_TIMEOUT) > 0; )
{
char buff[MTU_SIZE];
// без проверки отправителя
int buffLen = recv(m_sock, buff, MTU_SIZE, 0);
if (buffLen < 0) return -1;
if (buffLen > 0)
{
if (store.addPacket(buff, buffLen)) return -1;
}
else // buffLen == 0
{
int answLen = store.getMessage(answ);
if (answLen > 0) answ.resize(answLen);
return answLen;
}
}
return -1; //timeout
}