public synchronized void connect(long timeout) throws TransportException {
try {
switch (state) {
case 0:
break;
case 3:
return; // already connected
case 4:
state = 0;
throw new TransportException("Connection in error", te);
default:
TransportException te = new TransportException("Invalid state: " + state);
state = 0;
throw te;
}
state = 1;
te = null;
thread = new Thread(this, name);
thread.setDaemon(true);
synchronized (thread) {
thread.start();
thread.wait(timeout); /* wait for doConnect */
switch (state) {
case 1: /* doConnect never returned */
state = 0;
thread = null;
throw new TransportException("Connection timeout");
case 2:
if (te != null) {
/* doConnect throw Exception */
state = 4; /* error */
thread = null;
throw te;
}
state = 3; /* Success! */
return;
}
}
} catch (InterruptedException ie) {
state = 0;
thread = null;
throw new TransportException(ie);
} finally {
/* This guarantees that we leave in a valid state
*/
if (state != 0 && state != 3 && state != 4) {
if (log.level >= 1) log.println("Invalid state: " + state);
state = 0;
thread = null;
}
}
}
