private IRdTask <TRes> StartInternal(Lifetime requestLifetime, TReq request, [NotNull] IScheduler scheduler)
{
AssertBound();
if (!Async)
{
AssertThreading();
}
AssertNullability(request);
var taskId = Proto.Identities.Next(RdId.Nil);
var task = new WiredRdTask <TReq, TRes>(this, taskId, scheduler, false);
//no need for cancellationLifetime on call site
var _ = task.Subscribe(Lifetime.Intersect(requestLifetime, myBindLifetime));
Wire.Send(RdId, (writer) =>
{
SendTrace?.Log($"{task} :: send request: {request.PrintToString()}");
taskId.Write(writer);
WriteRequestDelegate(SerializationContext, writer, request);
});
return(task);
}
public override void OnWireReceived(UnsafeReader reader) //endpoint's side
{
var taskId = RdId.Read(reader);
var wiredTask = new WiredRdTask <TReq, TRes>(this, taskId, myEndpointSchedulerForHandlerAndCancellation ?? WireScheduler, true);
//subscribe for lifetime cancellation
var externalCancellation = wiredTask.Subscribe(myBindLifetime);
using (UsingDebugInfo()) //now supports only sync handlers
{
RdTask <TRes> rdTask;
try
{
var value = ReadRequestDelegate(SerializationContext, reader);
ReceiveTrace?.Log($"{wiredTask} :: received request: {value.PrintToString()}");
rdTask = Handler(externalCancellation, value);
}
catch (Exception e)
{
rdTask = RdTask <TRes> .Faulted(e);
}
rdTask.Result.Advise(Lifetime.Eternal, result =>
{
try
{
if (result.Status == RdTaskStatus.Success)
{
AssertNullability(result.Result);
}
wiredTask.ResultInternal.SetIfEmpty(result);
}
catch (Exception ee)
{
ourLogSend.Error($"Problem when responding to `{wiredTask}`", ee);
wiredTask.Set(new RdFault(ee));
}
});
}
}