public void resume() {
switch (suspendPolicy()) {
case EventRequest.SUSPEND_ALL:
vm.resume();
break;
case EventRequest.SUSPEND_EVENT_THREAD:
ThreadReference thread = eventThread();
if (thread == null) {
throw new InternalException("Inconsistent suspend policy");
}
thread.resume();
break;
case EventRequest.SUSPEND_NONE:
// Do nothing
break;
default:
throw new InternalException("Invalid suspend policy");
}
}
/*
* Complete the construction of an EventSet. This is called from
* an event handler thread. It upacks the JDWP events inside
* the packet and creates EventImpls for them. The EventSet is already
* on EventQueues when this is called, so it has to be synch.
*/
synchronized void build() {
if (pkt == null) {
return;
}
PacketStream ps = new PacketStream(vm, pkt);
JDWP.Event.Composite compEvt = new JDWP.Event.Composite(vm, ps);
suspendPolicy = compEvt.suspendPolicy;
if ((vm.traceFlags & vm.TRACE_EVENTS) != 0) {
switch (suspendPolicy) {
case JDWP.SuspendPolicy.ALL:
vm.printTrace("EventSet: SUSPEND_ALL");
break;
case JDWP.SuspendPolicy.EVENT_THREAD:
vm.printTrace("EventSet: SUSPEND_EVENT_THREAD");
break;
case JDWP.SuspendPolicy.NONE:
vm.printTrace("EventSet: SUSPEND_NONE");
break;
}
}
ThreadReference fix6485605 = null;
for (int i = 0; i < compEvt.events.length; i++) {
EventImpl evt = createEvent(compEvt.events[i]);
if ((vm.traceFlags & vm.TRACE_EVENTS) != 0) {
try {
vm.printTrace("Event: " + evt);
} catch (VMDisconnectedException ee) {
// ignore - see bug 6502716
}
}
switch (evt.destination()) {
case UNKNOWN_EVENT:
// Ignore disabled, deleted, unknown events, but
// save the thread if there is one since we might
// have to resume it. Note that events for different
// threads can't be in the same event set.
if (evt instanceof ThreadedEventImpl
&& suspendPolicy == JDWP.SuspendPolicy.EVENT_THREAD) {
fix6485605 = ((ThreadedEventImpl) evt).thread();
}
continue;
case CLIENT_EVENT:
addEvent(evt);
break;
case INTERNAL_EVENT:
if (internalEventSet == null) {
internalEventSet = new EventSetImpl(this.vm, null);
}
internalEventSet.addEvent(evt);
break;
default:
throw new InternalException("Invalid event destination");
}
}
pkt = null; // No longer needed - free it up
// Avoid hangs described in 6296125, 6293795
if (super.size() == 0) {
// This set has no client events. If we don't do
// needed resumes, no one else is going to.
if (suspendPolicy == JDWP.SuspendPolicy.ALL) {
vm.resume();
} else if (suspendPolicy == JDWP.SuspendPolicy.EVENT_THREAD) {
// See bug 6485605.
if (fix6485605 != null) {
fix6485605.resume();
} else {
// apparently, there is nothing to resume.
}
}
suspendPolicy = JDWP.SuspendPolicy.NONE;
}
}
