Function when

fdbserver/Resolver.actor.cpp:680–682

	loop choose {
		when(ResolveTransactionBatchRequest batch = waitNext(resolver.resolve.getFuture())) {
			actors.add(resolveBatch(self, batch, db));
		}
		when(ResolutionMetricsRequest req = waitNext(resolver.metrics.getFuture())) {
			++self->metricsRequests;
			req.reply.send(self->iopsSample.getEstimate(SERVER_KNOBS->PROXY_USE_RESOLVER_PRIVATE_MUTATIONS ? normalKeys