public async Task HandleCall(ServerRpcNew newRpc, CompletionQueueSafeHandle cq)
{
var asyncCall = new AsyncCallServer <TRequest, TResponse>(
method.ResponseMarshaller.ContextualSerializer,
method.RequestMarshaller.ContextualDeserializer,
newRpc.Server);
asyncCall.Initialize(newRpc.Call, cq);
var finishedTask = asyncCall.ServerSideCallAsync();
var requestStream = new ServerRequestStream <TRequest, TResponse>(asyncCall);
var responseStream = new ServerResponseStream <TRequest, TResponse>(asyncCall);
Status status;
AsyncCallServer <TRequest, TResponse> .ResponseWithFlags?responseWithFlags = null;
var context = HandlerUtils.NewContext(newRpc, responseStream, asyncCall.CancellationToken);
try
{
GrpcPreconditions.CheckArgument(await requestStream.MoveNext().ConfigureAwait(false));
var request = requestStream.Current;
var response = await handler(request, context).ConfigureAwait(false);
status = context.Status;
responseWithFlags = new AsyncCallServer <TRequest, TResponse> .ResponseWithFlags(response, HandlerUtils.GetWriteFlags(context.WriteOptions));
}
catch (Exception e)
{
if (!(e is RpcException))
{
Logger.Warning(e, "Exception occurred in the handler or an interceptor.");
}
status = HandlerUtils.GetStatusFromExceptionAndMergeTrailers(e, context.ResponseTrailers);
}
try
{
await asyncCall.SendStatusFromServerAsync(status, context.ResponseTrailers, responseWithFlags).ConfigureAwait(false);
}
catch (Exception)
{
asyncCall.Cancel();
throw;
}
await finishedTask.ConfigureAwait(false);
}
public async Task HandleCall(ServerRpcNew newRpc, GrpcEnvironment environment)
{
var asyncCall = new AsyncCallServer <TRequest, TResponse>(
method.ResponseMarshaller.Serializer,
method.RequestMarshaller.Deserializer,
environment, newRpc.Server);
asyncCall.Initialize(newRpc.Call);
var finishedTask = asyncCall.ServerSideCallAsync();
var requestStream = new ServerRequestStream <TRequest, TResponse>(asyncCall);
var responseStream = new ServerResponseStream <TRequest, TResponse>(asyncCall);
Status status;
Tuple <TResponse, WriteFlags> responseTuple = null;
var context = HandlerUtils.NewContext(newRpc, asyncCall.Peer, responseStream, asyncCall.CancellationToken);
try
{
GrpcPreconditions.CheckArgument(await requestStream.MoveNext().ConfigureAwait(false));
var request = requestStream.Current;
var response = await handler(request, context).ConfigureAwait(false);
status = context.Status;
responseTuple = Tuple.Create(response, HandlerUtils.GetWriteFlags(context.WriteOptions));
}
catch (Exception e)
{
if (!(e is RpcException))
{
Logger.Warning(e, "Exception occured in handler.");
}
status = HandlerUtils.StatusFromException(e);
}
try
{
await asyncCall.SendStatusFromServerAsync(status, context.ResponseTrailers, responseTuple).ConfigureAwait(false);
}
catch (Exception)
{
asyncCall.Cancel();
throw;
}
await finishedTask.ConfigureAwait(false);
}
public async Task HandleCall(ServerRpcNew newRpc, CompletionQueueSafeHandle cq)
{
var asyncCall = new AsyncCallServer <TRequest, TResponse>(
method.ResponseMarshaller.Serializer,
method.RequestMarshaller.Deserializer,
newRpc.Server);
asyncCall.Initialize(newRpc.Call, cq);
var finishedTask = asyncCall.ServerSideCallAsync();
var requestStream = new ServerRequestStream <TRequest, TResponse>(asyncCall);
var responseStream = new ServerResponseStream <TRequest, TResponse>(asyncCall);
Status status;
Tuple <TResponse, WriteFlags> responseTuple = null;
var context = HandlerUtils.NewContext(newRpc, responseStream, asyncCall.CancellationToken);
try
{
var response = await handler(requestStream, context).ConfigureAwait(false);
status = context.Status;
responseTuple = Tuple.Create(response, HandlerUtils.GetWriteFlags(context.WriteOptions));
}
catch (Exception e)
{
if (!(e is RpcException))
{
Logger.Warning(e, "Exception occured in handler.");
}
status = HandlerUtils.GetStatusFromExceptionAndMergeTrailers(e, context.ResponseTrailers);
}
try
{
await asyncCall.SendStatusFromServerAsync(status, context.ResponseTrailers, responseTuple).ConfigureAwait(false);
}
catch (Exception)
{
asyncCall.Cancel();
throw;
}
await finishedTask.ConfigureAwait(false);
}
public async Task HandleCall(ServerRpcNew newRpc, GrpcEnvironment environment)
{
var asyncCall = new AsyncCallServer <TRequest, TResponse>(
method.ResponseMarshaller.Serializer,
method.RequestMarshaller.Deserializer,
environment, newRpc.Server);
asyncCall.Initialize(newRpc.Call);
var finishedTask = asyncCall.ServerSideCallAsync();
var requestStream = new ServerRequestStream <TRequest, TResponse>(asyncCall);
var responseStream = new ServerResponseStream <TRequest, TResponse>(asyncCall);
Status status;
var context = HandlerUtils.NewContext(newRpc, asyncCall.Peer, responseStream, asyncCall.CancellationToken);
try
{
await handler(requestStream, responseStream, context).ConfigureAwait(false);
status = context.Status;
}
catch (Exception e)
{
if (!(e is RpcException))
{
Logger.Warning(e, "Exception occured in handler.");
}
status = HandlerUtils.StatusFromException(e);
}
try
{
await asyncCall.SendStatusFromServerAsync(status, context.ResponseTrailers, null).ConfigureAwait(false);
}
catch (Exception)
{
asyncCall.Cancel();
throw;
}
await finishedTask.ConfigureAwait(false);
}
public async Task <bool> MoveNext(CancellationToken token)
{
var cancellationTokenRegistration = token.CanBeCanceled ? token.Register(() => call.Cancel()) : (IDisposable)null;
using (cancellationTokenRegistration)
{
var result = await call.ReadMessageAsync().ConfigureAwait(false);
this.current = result;
return(result != null);
}
}