| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #endregion |
| |
| using System.Threading.Tasks; |
| using Grpc.Core.Internal; |
| |
| namespace Grpc.Core |
| { |
| /// <summary> |
| /// Helper methods for generated clients to make RPC calls. |
| /// Most users will use this class only indirectly and will be |
| /// making calls using client object generated from protocol |
| /// buffer definition files. |
| /// </summary> |
| public static class Calls |
| { |
| /// <summary> |
| /// Invokes a simple remote call in a blocking fashion. |
| /// </summary> |
| /// <returns>The response.</returns> |
| /// <param name="call">The call defintion.</param> |
| /// <param name="req">Request message.</param> |
| /// <typeparam name="TRequest">Type of request message.</typeparam> |
| /// <typeparam name="TResponse">The of response message.</typeparam> |
| public static TResponse BlockingUnaryCall<TRequest, TResponse>(CallInvocationDetails<TRequest, TResponse> call, TRequest req) |
| where TRequest : class |
| where TResponse : class |
| { |
| var asyncCall = new AsyncCall<TRequest, TResponse>(call); |
| return asyncCall.UnaryCall(req); |
| } |
| |
| /// <summary> |
| /// Invokes a simple remote call asynchronously. |
| /// </summary> |
| /// <returns>An awaitable call object providing access to the response.</returns> |
| /// <param name="call">The call defintion.</param> |
| /// <param name="req">Request message.</param> |
| /// <typeparam name="TRequest">Type of request message.</typeparam> |
| /// <typeparam name="TResponse">The of response message.</typeparam> |
| public static AsyncUnaryCall<TResponse> AsyncUnaryCall<TRequest, TResponse>(CallInvocationDetails<TRequest, TResponse> call, TRequest req) |
| where TRequest : class |
| where TResponse : class |
| { |
| var asyncCall = new AsyncCall<TRequest, TResponse>(call); |
| var asyncResult = asyncCall.UnaryCallAsync(req); |
| return new AsyncUnaryCall<TResponse>(asyncResult, asyncCall.ResponseHeadersAsync, asyncCall.GetStatus, asyncCall.GetTrailers, asyncCall.Cancel); |
| } |
| |
| /// <summary> |
| /// Invokes a server streaming call asynchronously. |
| /// In server streaming scenario, client sends on request and server responds with a stream of responses. |
| /// </summary> |
| /// <returns>A call object providing access to the asynchronous response stream.</returns> |
| /// <param name="call">The call defintion.</param> |
| /// <param name="req">Request message.</param> |
| /// <typeparam name="TRequest">Type of request message.</typeparam> |
| /// <typeparam name="TResponse">The of response messages.</typeparam> |
| public static AsyncServerStreamingCall<TResponse> AsyncServerStreamingCall<TRequest, TResponse>(CallInvocationDetails<TRequest, TResponse> call, TRequest req) |
| where TRequest : class |
| where TResponse : class |
| { |
| var asyncCall = new AsyncCall<TRequest, TResponse>(call); |
| asyncCall.StartServerStreamingCall(req); |
| var responseStream = new ClientResponseStream<TRequest, TResponse>(asyncCall); |
| return new AsyncServerStreamingCall<TResponse>(responseStream, asyncCall.ResponseHeadersAsync, asyncCall.GetStatus, asyncCall.GetTrailers, asyncCall.Cancel); |
| } |
| |
| /// <summary> |
| /// Invokes a client streaming call asynchronously. |
| /// In client streaming scenario, client sends a stream of requests and server responds with a single response. |
| /// </summary> |
| /// <param name="call">The call defintion.</param> |
| /// <returns>An awaitable call object providing access to the response.</returns> |
| /// <typeparam name="TRequest">Type of request messages.</typeparam> |
| /// <typeparam name="TResponse">The of response message.</typeparam> |
| public static AsyncClientStreamingCall<TRequest, TResponse> AsyncClientStreamingCall<TRequest, TResponse>(CallInvocationDetails<TRequest, TResponse> call) |
| where TRequest : class |
| where TResponse : class |
| { |
| var asyncCall = new AsyncCall<TRequest, TResponse>(call); |
| var resultTask = asyncCall.ClientStreamingCallAsync(); |
| var requestStream = new ClientRequestStream<TRequest, TResponse>(asyncCall); |
| return new AsyncClientStreamingCall<TRequest, TResponse>(requestStream, resultTask, asyncCall.ResponseHeadersAsync, asyncCall.GetStatus, asyncCall.GetTrailers, asyncCall.Cancel); |
| } |
| |
| /// <summary> |
| /// Invokes a duplex streaming call asynchronously. |
| /// In duplex streaming scenario, client sends a stream of requests and server responds with a stream of responses. |
| /// The response stream is completely independent and both side can be sending messages at the same time. |
| /// </summary> |
| /// <returns>A call object providing access to the asynchronous request and response streams.</returns> |
| /// <param name="call">The call definition.</param> |
| /// <typeparam name="TRequest">Type of request messages.</typeparam> |
| /// <typeparam name="TResponse">Type of reponse messages.</typeparam> |
| public static AsyncDuplexStreamingCall<TRequest, TResponse> AsyncDuplexStreamingCall<TRequest, TResponse>(CallInvocationDetails<TRequest, TResponse> call) |
| where TRequest : class |
| where TResponse : class |
| { |
| var asyncCall = new AsyncCall<TRequest, TResponse>(call); |
| asyncCall.StartDuplexStreamingCall(); |
| var requestStream = new ClientRequestStream<TRequest, TResponse>(asyncCall); |
| var responseStream = new ClientResponseStream<TRequest, TResponse>(asyncCall); |
| return new AsyncDuplexStreamingCall<TRequest, TResponse>(requestStream, responseStream, asyncCall.ResponseHeadersAsync, asyncCall.GetStatus, asyncCall.GetTrailers, asyncCall.Cancel); |
| } |
| } |
| } |