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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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90 lines
2.5 KiB
90 lines
2.5 KiB
6 years ago
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/*
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*
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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_IMPL_CODEGEN_SERVER_INTERCEPTOR_H
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#define GRPCPP_IMPL_CODEGEN_SERVER_INTERCEPTOR_H
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#include <vector>
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#include <grpc/impl/codegen/log.h>
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#include <grpcpp/impl/codegen/interceptor.h>
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#include <grpcpp/impl/codegen/string_ref.h>
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namespace grpc {
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class ServerContext;
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namespace internal {
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template <int I>
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class CallNoOp;
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}
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namespace experimental {
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class ServerRpcInfo;
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class ServerInterceptorFactoryInterface {
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public:
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virtual ~ServerInterceptorFactoryInterface() {}
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virtual Interceptor* CreateServerInterceptor(ServerRpcInfo* info) = 0;
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};
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class ServerRpcInfo {
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public:
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ServerRpcInfo() {}
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ServerRpcInfo(grpc::ServerContext* ctx, const char* method,
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const std::vector<std::unique_ptr<
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experimental::ServerInterceptorFactoryInterface>>& creators)
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: ctx_(ctx), method_(method) {
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for (const auto& creator : creators) {
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interceptors_.push_back(std::unique_ptr<experimental::Interceptor>(
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creator->CreateServerInterceptor(this)));
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}
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}
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~ServerRpcInfo(){};
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ServerRpcInfo(const ServerRpcInfo&) = delete;
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ServerRpcInfo(ServerRpcInfo&&) = default;
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ServerRpcInfo& operator=(ServerRpcInfo&&) = default;
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// Getter methods
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const char* method() { return method_; }
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grpc::ServerContext* server_context() { return ctx_; }
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public:
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/* Runs interceptor at pos \a pos. If \a reverse is set, the interceptor order
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* is the reverse */
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void RunInterceptor(
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experimental::InterceptorBatchMethods* interceptor_methods,
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unsigned int pos) {
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GPR_CODEGEN_ASSERT(pos < interceptors_.size());
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interceptors_[pos]->Intercept(interceptor_methods);
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}
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private:
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grpc::ServerContext* ctx_ = nullptr;
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const char* method_ = nullptr;
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public:
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std::vector<std::unique_ptr<experimental::Interceptor>> interceptors_;
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};
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} // namespace experimental
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} // namespace grpc
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#endif // GRPCPP_IMPL_CODEGEN_SERVER_INTERCEPTOR_H
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