void Domain::Done(Request *req, RequestFlag flag)
{
	AutoLock lock(fLocker);
	Trace("%p.Done(", this); WriteRequest(req); Trace(", %d)\n", flag != doneRequest);
	Assert(req == fQueue && SetIn(runningRequest, req->state));
	Assert((fQueue != NULL && fQueueEnd != NULL) || (fQueue == NULL && fQueueEnd == NULL));
	Request *next = req->next;
	req->next = NULL;
	fQueue = next; if (next == NULL) fQueueEnd = NULL;
	SetExcl(req->state, runningRequest);
	SetIncl(req->state, flag);
	if (SetIn(doneRequest, req->state) && !SetIn(pendingRequest, req->state))
		req->Resolved(); // can call delete req;
	if (next == NULL) {
		if (SetIn(pendingRequest, req->state)) {
			SetExcl(req->state, pendingRequest);
			Schedule(req); // calls Run
		} else {
			Trace("%p: last request\n", this);
			fEmptyQueueCV.Release(true);
		}
	} else {
		if (SetIn(pendingRequest, req->state)) {
			SetExcl(req->state, pendingRequest);
			Schedule(req);
		}
		Run(next);
	}
	Assert((fQueue != NULL && fQueueEnd != NULL) || (fQueue == NULL && fQueueEnd == NULL));
}