The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
75 lines
2.7 KiB
75 lines
2.7 KiB
/* |
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* |
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* Copyright 2015 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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#include <functional> |
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#include <grpcpp/generic/generic_stub.h> |
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#include <grpcpp/impl/rpc_method.h> |
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#include <grpcpp/support/client_callback.h> |
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namespace grpc { |
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namespace { |
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std::unique_ptr<GenericClientAsyncReaderWriter> CallInternal( |
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ChannelInterface* channel, ClientContext* context, |
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const grpc::string& method, CompletionQueue* cq, bool start, void* tag) { |
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return std::unique_ptr<GenericClientAsyncReaderWriter>( |
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internal::ClientAsyncReaderWriterFactory<ByteBuffer, ByteBuffer>::Create( |
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channel, cq, |
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internal::RpcMethod(method.c_str(), |
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internal::RpcMethod::BIDI_STREAMING), |
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context, start, tag)); |
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} |
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} // namespace |
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// begin a call to a named method |
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std::unique_ptr<GenericClientAsyncReaderWriter> GenericStub::Call( |
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ClientContext* context, const grpc::string& method, CompletionQueue* cq, |
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void* tag) { |
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return CallInternal(channel_.get(), context, method, cq, true, tag); |
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} |
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// setup a call to a named method |
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std::unique_ptr<GenericClientAsyncReaderWriter> GenericStub::PrepareCall( |
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ClientContext* context, const grpc::string& method, CompletionQueue* cq) { |
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return CallInternal(channel_.get(), context, method, cq, false, nullptr); |
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} |
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// setup a unary call to a named method |
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std::unique_ptr<GenericClientAsyncResponseReader> GenericStub::PrepareUnaryCall( |
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ClientContext* context, const grpc::string& method, |
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const ByteBuffer& request, CompletionQueue* cq) { |
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return std::unique_ptr<GenericClientAsyncResponseReader>( |
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internal::ClientAsyncResponseReaderFactory<ByteBuffer>::Create( |
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channel_.get(), cq, |
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internal::RpcMethod(method.c_str(), internal::RpcMethod::NORMAL_RPC), |
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context, request, false)); |
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} |
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void GenericStub::experimental_type::UnaryCall( |
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ClientContext* context, const grpc::string& method, |
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const ByteBuffer* request, ByteBuffer* response, |
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std::function<void(Status)> on_completion) { |
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internal::CallbackUnaryCall( |
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stub_->channel_.get(), |
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internal::RpcMethod(method.c_str(), internal::RpcMethod::NORMAL_RPC), |
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context, request, response, std::move(on_completion)); |
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} |
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} // namespace grpc
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