public boolean handleMessage() throws java.io.IOException {
ByteBuffer buf = ByteBuffer.allocate(4);
int nBytes = ChannelUtil.fillBuffer(buf, agentSocket);
if (nBytes == 0) {
Log.info("DomainServer: agent closed connection " + agentSocket);
return false;
}
if (nBytes < 4) {
Log.error("DomainServer: invalid message " + nBytes);
return false;
}
int msgLen = buf.getInt();
if (msgLen < 0) {
return false;
}
MVByteBuffer buffer = new MVByteBuffer(msgLen);
nBytes = ChannelUtil.fillBuffer(buffer.getNioBuf(), agentSocket);
if (nBytes == 0) {
Log.info("DomainServer: agent closed connection " + agentSocket);
return false;
}
if (nBytes < msgLen) {
Log.error(
"DomainServer: invalid message, expecting "
+ msgLen
+ " got "
+ nBytes
+ " from "
+ agentSocket);
return false;
}
Message message = (Message) MarshallingRuntime.unmarshalObject(buffer);
if (message instanceof AgentHelloMessage) {
// Successfully added agent, clear our socket var
// so we don't close it.
if (handleAgentHello((AgentHelloMessage) message)) agentSocket = null;
return false;
} else if (message instanceof AllocNameMessage)
handleAllocName((AllocNameMessage) message, agentSocket);
return true;
}
/** make sure the packet as the remote address and remote port set */
static void sendPacket(DatagramChannel dc, RDPPacket packet) {
sendMeter.add();
// allocate a buffer
int bufSize = 100 + (packet.numEacks() * 4);
if (packet.getData() != null) {
bufSize += packet.getData().length;
sendDataMeter.add();
}
MVByteBuffer buf = new MVByteBuffer(bufSize);
packet.toByteBuffer(buf); // function flips the buffer
int remotePort = packet.getPort();
InetAddress remoteAddr = packet.getInetAddress();
if ((remotePort < 0) || (remoteAddr == null)) {
throw new MVRuntimeException("RDPServer.sendPacket: remotePort or addr is null");
}
try {
int bytes = dc.send(buf.getNioBuf(), new InetSocketAddress(remoteAddr, remotePort));
if (bytes == 0) {
Log.error("RDPServer.sendPacket: could not send packet, size=" + bufSize);
}
if (Log.loggingNet)
Log.net(
"RDPServer.sendPacket: remoteAddr="
+ remoteAddr
+ ", remotePort="
+ remotePort
+ ", numbytes sent="
+ bytes);
} catch (java.io.IOException e) {
Log.exception(
"RDPServer.sendPacket: remoteAddr="
+ remoteAddr
+ ", remotePort="
+ remotePort
+ ", got exception",
e);
throw new MVRuntimeException("RDPServer.sendPacket", e);
}
}