void HandlePacket(CodedInputStream reader)
{
var service_id = reader.ReadRawByte();
var method_id = reader.ReadInt32() - 1;
var request_id = reader.ReadFixedUInt16();
Debug.WriteLine("Received packet [service_id: 0x{0:X2}, method_id: {1}, request_id: {2}]", service_id, method_id, request_id);
// Handle RPC responses
if (service_id == RESPONSE_SERVICE_ID)
{
Debug.WriteLine(" received response");
HandleResponse(request_id, reader);
}
else
{
var listener_id = reader.ReadInt64();
Debug.WriteLine(" listener_id: {0}", listener_id);
IService service;
if (!exportedServices.TryGetValue(service_id, out service))
{
throw new ArgumentException("No service bound on index " + service_id);
}
// Load correct descriptor for the requested method
var method_descriptor = service.DescriptorForType.Methods[method_id];
// Create a prototype of the request message
var message_prototype = service.GetRequestPrototype(method_descriptor);
// And create a builder for that message
var builder = message_prototype.WeakCreateBuilderForType();
// Read the message into the correct builder
var message = ReadMessage(reader, builder);
Debug.WriteLine(" passing RPC to {0}::{1}", method_descriptor.Service.Name, method_descriptor.Name);
Debug.WriteLine(message.ToString());
// Response callback sends the repsponse
service.CallMethod(method_descriptor, null, message, m => SendResponse(request_id, m));
}
}
