Wait for a Socket to Become Readable

See more Socket/SSL/TLS Examples

Demonstrates Socket.SelectForReading, which waits for read-ready activity on the socket, or on any contained socket when the object is a socket set. It returns 1 if ready, 0 on timeout, or -1 on error.

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;
        }

    //  Wait up to 5 seconds for read-ready activity on the socket (or, for a socket set, on any contained
    //  socket).  Returns 1 if ready, 0 on timeout, or -1 on error.
    int ready = socket.SelectForReading(5000);
    if (ready < 0) {
        System.out.println(socket.lastErrorText());
        return;
        }

    if (ready != 1) {
        System.out.println("No data became available before the timeout.");
        return;
        }

    System.out.println("The socket has data ready to read.");
  }
}