Java
Java
Poll a Socket for Available Data
See more Socket/SSL/TLS Examples
Demonstrates Socket.PollDataAvailable, which performs a nonblocking check for readable activity and returns whether data or another read-ready condition is present.
Background. This lets an application check for incoming data without blocking, for example in an event loop that services multiple tasks.
Chilkat Java Downloads
import com.chilkatsoft.*;
public class ChilkatExample {
static {
try {
System.loadLibrary("chilkat");
} catch (UnsatisfiedLinkError e) {
System.err.println("Native code library failed to load.\n" + e);
System.exit(1);
}
}
public static void main(String argv[])
{
boolean success = false;
CkSocket socket = new CkSocket();
// Connect to the server using TLS.
boolean bTls = true;
int maxWaitMs = 5000;
success = socket.Connect("example.com",5000,bTls,maxWaitMs);
if (success == false) {
System.out.println(socket.lastErrorText());
return;
}
// Perform a nonblocking check for readable data. Returns true when data or another read-ready
// condition is present, and false when nothing is immediately available.
boolean bAvailable = socket.PollDataAvailable();
if (bAvailable != true) {
System.out.println("No data is immediately available.");
}
else {
System.out.println("Data is available to read.");
}
}
}