public Endpoint(Lifetime bindLifetime, RdCall <TReq, TRes> call, RdId rdId, IScheduler wireScheduler) : base(call, rdId, wireScheduler)
{
myDef = bindLifetime.CreateNested();
myCall.Wire.Advise(Lifetime, this);
Lifetime.TryOnTermination(() => ResultInternal.SetIfEmpty(RdTaskResult <TRes> .Cancelled()));
Result.AdviseOnce(Lifetime.Eternal, taskResult =>
{
var potentiallyBindable = taskResult.Result;
if (potentiallyBindable.IsBindable())
{
potentiallyBindable.IdentifyPolymorphic(myCall.Proto.Identities, myCall.RdId.Mix(RdId.ToString()));
potentiallyBindable.BindPolymorphic(Lifetime, myCall, RdId.ToString());
}
else
{
myDef.Terminate();
}
Trace(RdReactiveBase.ourLogSend, "send response", taskResult);
myWire.Send(RdId,
writer =>
{
RdTaskResult <TRes> .Write(myCall.WriteResponseDelegate, myCall.SerializationContext, writer, taskResult);
});
});
}
internal Lifetime Subscribe(Lifetime outerLifetime)
{
var taskWireSubscriptionDefinition = outerLifetime.CreateNested();
var externalCancellation = outerLifetime.CreateNested();
myCall.Wire.Advise(taskWireSubscriptionDefinition.Lifetime, this); //this lifetimeDef listen only one value
taskWireSubscriptionDefinition.Lifetime.TryOnTermination(() => ResultInternal.SetIfEmpty(RdTaskResult <TRes> .Cancelled()));
Result.AdviseOnce(Lifetime.Eternal, taskResult =>
{
try
{
var potentiallyBindable = taskResult.Result;
if (potentiallyBindable.IsBindable())
{
if (myIsEndpoint)
{
potentiallyBindable.IdentifyPolymorphic(myCall.Proto.Identities, myCall.RdId.Mix(RdId.ToString()));
}
potentiallyBindable.BindPolymorphic(externalCancellation.Lifetime, myCall, RdId.ToString());
}
else
{
externalCancellation.Terminate();
}
if (myIsEndpoint)
{
Trace(RdReactiveBase.ourLogSend, "send response", taskResult);
myWire.Send(RdId,
writer =>
{
RdTaskResult <TRes> .Write(myCall.WriteResponseDelegate, myCall.SerializationContext, writer, taskResult);
});
}
else if (taskResult.Status == RdTaskStatus.Canceled) //we need to transfer cancellation to the other side
{
Trace(RdReactiveBase.ourLogSend, "send cancellation");
myWire.Send(RdId, writer => { writer.Write(Unit.Instance); }); //send cancellation to the other side
}
}
finally
{
taskWireSubscriptionDefinition.Terminate(); //no need to listen result or cancellation from wire
}
});
return(externalCancellation.Lifetime);
}
public override void OnWireReceived(UnsafeReader reader)
{
var taskId = RdId.Read(reader);
var value = ReadRequestDelegate(SerializationContext, reader);
if (LogReceived.IsTraceEnabled())
{
LogReceived.Trace("endpoint `{0}`::({1}), taskId={2}, request = {3}", Location, RdId, taskId, value.PrintToString());
}
var taskLifetimeDef = myBindLifetime.CreateNested();
//subscribe for lifetime cancellation
new WiredLifetime(taskLifetimeDef, taskId, this, Wire);
RdTask <TRes> rdTask;
using (UsingDebugInfo()) //now supports only sync handlers
{
try
{
rdTask = Handler(taskLifetimeDef.Lifetime, value);
}
catch (Exception e)
{
rdTask = RdTask <TRes> .Faulted(e);
}
}
rdTask.Result.Advise(taskLifetimeDef.Lifetime, result =>
{
if (LogSend.IsTraceEnabled())
{
LogSend.Trace("endpoint `{0}`::({1}), taskId={2}, response = {3}", Location, RdId, taskId, result.PrintToString());
}
RdTaskResult <TRes> validatedResult;
try
{
if (result.Status == RdTaskStatus.Success)
{
AssertNullability(result.Result);
}
validatedResult = result;
}
catch (Exception e)
{
LogSend.Error(e);
validatedResult = RdTaskResult <TRes> .Faulted(e);
}
Wire.Send(taskId, writer =>
{
RdTaskResult <TRes> .Write(WriteResponseDelegate, SerializationContext, writer, validatedResult);
});
taskLifetimeDef.Terminate(); //need to terminate to unsubscribe lifetime listener - not for bindable entries
});
}
