1 #region Copyright notice and license
3 // Copyright 2015-2016 gRPC authors.
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
19 using System.Threading.Tasks;
20 using Grpc.Core.Internal;
25 /// Abstraction of client-side RPC invocation.
27 /// <seealso cref="Calls"/>
28 public abstract class CallInvoker
31 /// Invokes a simple remote call in a blocking fashion.
33 public abstract TResponse BlockingUnaryCall<TRequest, TResponse>(Method<TRequest, TResponse> method, string host, CallOptions options, TRequest request)
34 where TRequest : class
35 where TResponse : class;
38 /// Invokes a simple remote call asynchronously.
40 public abstract AsyncUnaryCall<TResponse> AsyncUnaryCall<TRequest, TResponse>(Method<TRequest, TResponse> method, string host, CallOptions options, TRequest request)
41 where TRequest : class
42 where TResponse : class;
45 /// Invokes a server streaming call asynchronously.
46 /// In server streaming scenario, client sends on request and server responds with a stream of responses.
48 public abstract AsyncServerStreamingCall<TResponse> AsyncServerStreamingCall<TRequest, TResponse>(Method<TRequest, TResponse> method, string host, CallOptions options, TRequest request)
49 where TRequest : class
50 where TResponse : class;
53 /// Invokes a client streaming call asynchronously.
54 /// In client streaming scenario, client sends a stream of requests and server responds with a single response.
56 public abstract AsyncClientStreamingCall<TRequest, TResponse> AsyncClientStreamingCall<TRequest, TResponse>(Method<TRequest, TResponse> method, string host, CallOptions options)
57 where TRequest : class
58 where TResponse : class;
61 /// Invokes a duplex streaming call asynchronously.
62 /// In duplex streaming scenario, client sends a stream of requests and server responds with a stream of responses.
63 /// The response stream is completely independent and both side can be sending messages at the same time.
65 public abstract AsyncDuplexStreamingCall<TRequest, TResponse> AsyncDuplexStreamingCall<TRequest, TResponse>(Method<TRequest, TResponse> method, string host, CallOptions options)
66 where TRequest : class
67 where TResponse : class;