1/*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19#ifndef GRPCPP_IMPL_GRPC_LIBRARY_H
20#define GRPCPP_IMPL_GRPC_LIBRARY_H
21
22#include <iostream>
23
24#include <grpc/grpc.h>
25#include <grpcpp/impl/codegen/config.h>
26#include <grpcpp/impl/codegen/core_codegen.h>
27#include <grpcpp/impl/codegen/grpc_library.h> // IWYU pragma: export
28
29namespace grpc {
30
31namespace internal {
32class GrpcLibrary final : public GrpcLibraryInterface {
33 public:
34 void init() override { grpc_init(); }
35 void shutdown() override { grpc_shutdown(); }
36};
37
38/// Instantiating this class ensures the proper initialization of gRPC.
39class GrpcLibraryInitializer final {
40 public:
41 GrpcLibraryInitializer() {
42 if (grpc::g_glip == nullptr) {
43 static auto* const g_gli = new GrpcLibrary();
44 grpc::g_glip = g_gli;
45 }
46 if (grpc::g_core_codegen_interface == nullptr) {
47 static auto* const g_core_codegen = new CoreCodegen();
48 grpc::g_core_codegen_interface = g_core_codegen;
49 }
50 }
51
52 /// A no-op method to force the linker to reference this class, which will
53 /// take care of initializing and shutting down the gRPC runtime.
54 int summon() { return 0; }
55};
56
57} // namespace internal
58} // namespace grpc
59
60#endif // GRPCPP_IMPL_GRPC_LIBRARY_H
61

source code of include/grpcpp/impl/grpc_library.h