void setBufferSizes() {
if (sock != null) {
try {
sock.setSendBufferSize(ucast_send_buf_size);
} catch (Throwable ex) {
Trace.warn("UDP.setBufferSizes()", "failed setting ucast_send_buf_size in sock: " + ex);
}
try {
sock.setReceiveBufferSize(ucast_recv_buf_size);
} catch (Throwable ex) {
Trace.warn("UDP.setBufferSizes()", "failed setting ucast_recv_buf_size in sock: " + ex);
}
}
if (mcast_sock != null) {
try {
mcast_sock.setSendBufferSize(mcast_send_buf_size);
} catch (Throwable ex) {
Trace.warn(
"UDP.setBufferSizes()", "failed setting mcast_send_buf_size in mcast_sock: " + ex);
}
try {
mcast_sock.setReceiveBufferSize(mcast_recv_buf_size);
} catch (Throwable ex) {
Trace.warn(
"UDP.setBufferSizes()", "failed setting mcast_recv_buf_size in mcast_sock: " + ex);
}
}
}
/**
* Activate this <tt>UDPTerminal</tt>.
*
* @throws Exception if there is a network failure.
*/
public synchronized void activate() throws Exception {
if (!isActive()) {
if (Modbus.debug)
CCLog.info(
"UDPMasterTerminal::activate()::laddr=:" + m_LocalAddress + ":lport=" + m_LocalPort);
if (m_Socket == null) {
if (m_LocalAddress != null && m_LocalPort != -1) {
m_Socket = new DatagramSocket(m_LocalPort, m_LocalAddress);
} else {
m_Socket = new DatagramSocket();
m_LocalPort = m_Socket.getLocalPort();
m_LocalAddress = m_Socket.getLocalAddress();
}
}
if (Modbus.debug) CCLog.info("UDPMasterTerminal::haveSocket():" + m_Socket.toString());
if (Modbus.debug)
CCLog.info(
"UDPMasterTerminal::laddr=:" + m_LocalAddress.toString() + ":lport=" + m_LocalPort);
if (Modbus.debug)
CCLog.info(
"UDPMasterTerminal::raddr=:" + m_RemoteAddress.toString() + ":rport=" + m_RemotePort);
m_Socket.setReceiveBufferSize(1024);
m_Socket.setSendBufferSize(1024);
m_ModbusTransport = new ModbusUDPTransport(this);
m_Active = true;
}
if (Modbus.debug) CCLog.info("UDPMasterTerminal::activated");
}
/**
* Activate this <tt>UDPTerminal</tt>.
*
* @throws Exception if there is a network failure.
*/
public synchronized void activate() throws Exception {
if (!isActive()) {
if (Modbus.debug) System.out.println("UDPSlaveTerminal.activate()");
if (m_Socket == null) {
if (m_LocalAddress != null && m_LocalPort != -1) {
m_Socket = new DatagramSocket(m_LocalPort, m_LocalAddress);
} else {
m_Socket = new DatagramSocket();
m_LocalPort = m_Socket.getLocalPort();
m_LocalAddress = m_Socket.getLocalAddress();
}
}
if (Modbus.debug) System.out.println("UDPSlaveTerminal::haveSocket():" + m_Socket.toString());
if (Modbus.debug)
System.out.println(
"UDPSlaveTerminal::addr=:" + m_LocalAddress.toString() + ":port=" + m_LocalPort);
m_Socket.setReceiveBufferSize(1024);
m_Socket.setSendBufferSize(1024);
m_PacketReceiver = new PacketReceiver();
m_Receiver = new Thread(m_PacketReceiver);
m_Receiver.start();
if (Modbus.debug) System.out.println("UDPSlaveTerminal::receiver started()");
m_PacketSender = new PacketSender();
m_Sender = new Thread(m_PacketSender);
m_Sender.start();
if (Modbus.debug) System.out.println("UDPSlaveTerminal::sender started()");
m_ModbusTransport = new ModbusUDPTransport(this);
if (Modbus.debug) System.out.println("UDPSlaveTerminal::transport created");
m_Active = true;
}
if (Modbus.debug) System.out.println("UDPSlaveTerminal::activated");
}
@Override
public void setSendBufferSize(int sendBufferSize) {
try {
socket.setSendBufferSize(sendBufferSize);
} catch (SocketException e) {
throw new ChannelException(e);
}
}
protected void setSocketAttributes(DatagramSocket socket) throws SocketException {
if (this.getSoTimeout() >= 0) {
socket.setSoTimeout(this.getSoTimeout());
}
if (this.getSoSendBufferSize() > 0) {
socket.setSendBufferSize(this.getSoSendBufferSize());
}
}
/**
* Konstruktor
*
* @param port UDP-Port, der lokal fuer das Datagramm-Socket verwendet werden soll
* @param sendBufferSize Groesse des Sendepuffers in Byte
* @param receiveBufferSize Groesse des Empfangspuffers in Byte
*/
public UdpSocket(int port, int sendBufferSize, int receiveBufferSize) throws SocketException {
socket = new DatagramSocket(port);
try {
socket.setReceiveBufferSize(receiveBufferSize);
socket.setSendBufferSize(sendBufferSize);
System.out.println(
"Groesse des Empfangspuffers des Datagram-Sockets: "
+ socket.getReceiveBufferSize()
+ " Byte");
System.out.println(
"Groesse des Sendepuffers des Datagram-Sockets: " + socket.getSendBufferSize() + " Byte");
} catch (SocketException e) {
log.debug("Socketfehler: " + e);
}
}
private void initDatagramSocket() {
try {
this.ds = new DatagramSocket(bindaddr);
} catch (SocketException e) {
errorHandler.error(
"Failed to create datagram socket bound to " + bindaddr, e, ErrorCode.GENERIC_FAILURE);
return;
}
if (sendBuffer > 0)
try {
ds.setSendBufferSize(sendBuffer);
} catch (SocketException e) {
errorHandler.error(
"Failed to set SO_SNDBUF option to " + sendBuffer + " for datagram socket " + ds,
e,
ErrorCode.GENERIC_FAILURE);
}
}