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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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82 lines
2.7 KiB
82 lines
2.7 KiB
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// Copyright 2018 gRPC authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// |
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#ifndef GRPCPP_GENERIC_ASYNC_GENERIC_SERVICE_H |
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#define GRPCPP_GENERIC_ASYNC_GENERIC_SERVICE_H |
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#include <grpc/support/port_platform.h> |
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#include <grpcpp/generic/callback_generic_service.h> |
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#include <grpcpp/support/async_stream.h> |
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#include <grpcpp/support/byte_buffer.h> |
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struct grpc_server; |
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namespace grpc { |
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typedef ServerAsyncReaderWriter<ByteBuffer, ByteBuffer> |
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GenericServerAsyncReaderWriter; |
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typedef ServerAsyncResponseWriter<ByteBuffer> GenericServerAsyncResponseWriter; |
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typedef ServerAsyncReader<ByteBuffer, ByteBuffer> GenericServerAsyncReader; |
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typedef ServerAsyncWriter<ByteBuffer> GenericServerAsyncWriter; |
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class GenericServerContext final : public ServerContext { |
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public: |
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const std::string& method() const { return method_; } |
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const std::string& host() const { return host_; } |
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private: |
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friend class ServerInterface; |
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std::string method_; |
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std::string host_; |
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}; |
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// A generic service at the server side accepts all RPC methods and hosts. It is |
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// typically used in proxies. The generic service can be registered to a server |
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// which also has other services. |
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// Sample usage: |
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// ServerBuilder builder; |
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// auto cq = builder.AddCompletionQueue(); |
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// AsyncGenericService generic_service; |
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// builder.RegisterAsyncGenericService(&generic_service); |
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// auto server = builder.BuildAndStart(); |
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// |
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// // request a new call |
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// GenericServerContext context; |
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// GenericServerAsyncReaderWriter stream; |
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// generic_service.RequestCall(&context, &stream, cq.get(), cq.get(), tag); |
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// |
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// When tag is retrieved from cq->Next(), context.method() can be used to look |
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// at the method and the RPC can be handled accordingly. |
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class AsyncGenericService final { |
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public: |
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AsyncGenericService() : server_(nullptr) {} |
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void RequestCall(GenericServerContext* ctx, |
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GenericServerAsyncReaderWriter* reader_writer, |
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grpc::CompletionQueue* call_cq, |
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grpc::ServerCompletionQueue* notification_cq, void* tag); |
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private: |
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friend class grpc::Server; |
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grpc::Server* server_; |
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}; |
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} // namespace grpc |
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#endif // GRPCPP_GENERIC_ASYNC_GENERIC_SERVICE_H
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