text: /*
   *
   * Copyright 2015 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_GRPC_LIBRARY_H
  #define GRPCPP_IMPL_GRPC_LIBRARY_H
  
  #include <iostream>
  
  #include <grpc/grpc.h>
  #include <grpcpp/impl/codegen/config.h>
  #include <grpcpp/impl/codegen/core_codegen.h>
  #include <grpcpp/impl/codegen/grpc_library.h>
  
  namespace grpc {
  
  namespace internal {
  class GrpcLibrary final : public GrpcLibraryInterface {
   public:
    void init() override { grpc_init(); }
    void shutdown() override { grpc_shutdown(); }
  };
  
  static GrpcLibrary g_gli;
  static CoreCodegen g_core_codegen;
  
  /// Instantiating this class ensures the proper initialization of gRPC.
  class GrpcLibraryInitializer final {
   public:
    GrpcLibraryInitializer() {
      if (grpc::g_glip == nullptr) {
        grpc::g_glip = &g_gli;
      }
      if (grpc::g_core_codegen_interface == nullptr) {
        grpc::g_core_codegen_interface = &g_core_codegen;
      }
    }
  
    /// A no-op method to force the linker to reference this class, which will
    /// take care of initializing and shutting down the gRPC runtime.
    int summon() { return 0; }
  };
  
  }  // namespace internal
  }  // namespace grpc
  
  #endif  // GRPCPP_IMPL_GRPC_LIBRARY_H
  