1/*
2 *
3 * Copyright 2016 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_CODEGEN_GRPC_LIBRARY_H
20#define GRPCPP_IMPL_CODEGEN_GRPC_LIBRARY_H
21
22#include <grpcpp/impl/codegen/core_codegen_interface.h>
23
24namespace grpc {
25
26class GrpcLibraryInterface {
27 public:
28 virtual ~GrpcLibraryInterface() = default;
29 virtual void init() = 0;
30 virtual void shutdown() = 0;
31};
32
33/// Initialized by \a grpc::GrpcLibraryInitializer from
34/// <grpcpp/impl/grpc_library.h>
35extern GrpcLibraryInterface* g_glip;
36
37/// Classes that require gRPC to be initialized should inherit from this class.
38class GrpcLibraryCodegen {
39 public:
40 GrpcLibraryCodegen(bool call_grpc_init = true) : grpc_init_called_(false) {
41 if (call_grpc_init) {
42 GPR_CODEGEN_ASSERT(g_glip &&
43 "gRPC library not initialized. See "
44 "grpc::internal::GrpcLibraryInitializer.");
45 g_glip->init();
46 grpc_init_called_ = true;
47 }
48 }
49 virtual ~GrpcLibraryCodegen() {
50 if (grpc_init_called_) {
51 GPR_CODEGEN_ASSERT(g_glip &&
52 "gRPC library not initialized. See "
53 "grpc::internal::GrpcLibraryInitializer.");
54 g_glip->shutdown();
55 }
56 }
57
58 private:
59 bool grpc_init_called_;
60};
61
62} // namespace grpc
63
64#endif // GRPCPP_IMPL_CODEGEN_GRPC_LIBRARY_H
65

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