/* * * Copyright 2016 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. * */ #ifndef GRPCPP_IMPL_CODEGEN_GRPC_LIBRARY_H #define GRPCPP_IMPL_CODEGEN_GRPC_LIBRARY_H // IWYU pragma: private, include <grpcpp/impl/grpc_library.h> #include <grpcpp/impl/codegen/core_codegen_interface.h> namespace grpc { class GrpcLibraryInterface { public: virtual ~GrpcLibraryInterface() = default; virtual void init() = 0; virtual void shutdown() = 0; }; /// Initialized by \a grpc::GrpcLibraryInitializer from /// <grpcpp/impl/grpc_library.h> extern GrpcLibraryInterface* g_glip; /// Classes that require gRPC to be initialized should inherit from this class. class GrpcLibraryCodegen { public: explicit GrpcLibraryCodegen(bool call_grpc_init = true) : grpc_init_called_(false) { if (call_grpc_init) { GPR_CODEGEN_ASSERT(g_glip && "gRPC library not initialized. See " "grpc::internal::GrpcLibraryInitializer."); g_glip->init(); grpc_init_called_ = true; } } virtual ~GrpcLibraryCodegen() { if (grpc_init_called_) { GPR_CODEGEN_ASSERT(g_glip && "gRPC library not initialized. See " "grpc::internal::GrpcLibraryInitializer."); g_glip->shutdown(); } } private: bool grpc_init_called_; }; } // namespace grpc #endif // GRPCPP_IMPL_CODEGEN_GRPC_LIBRARY_H