mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.8 KiB
59 lines
1.8 KiB
4 months ago
|
// Copyright 2024 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_SUPPORT_GLOBAL_CALLBACK_HOOK_H
|
||
|
|
#define GRPCPP_SUPPORT_GLOBAL_CALLBACK_HOOK_H
|
||
|
|
|
||
|
|
#include "absl/functional/function_ref.h"
|
||
|
|
|
||
|
|
struct grpc_call;
|
||
|
|
|
||
|
|
namespace grpc {
|
||
|
|
|
||
|
|
class GlobalCallbackHook {
|
||
|
|
public:
|
||
|
|
virtual ~GlobalCallbackHook() = default;
|
||
|
|
virtual void RunCallback(grpc_call* call,
|
||
|
|
absl::FunctionRef<void()> callback) = 0;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
// An exception-safe way of invoking a user-specified callback function.
|
||
|
|
template <class Func, class... Args>
|
||
|
|
void CatchingCallback(Func&& func, Args&&... args) {
|
||
|
|
#if GRPC_ALLOW_EXCEPTIONS
|
||
|
|
try {
|
||
|
|
func(std::forward<Args>(args)...);
|
||
|
|
} catch (...) {
|
||
|
|
// nothing to return or change here, just don't crash the library
|
||
|
|
}
|
||
|
|
#else // GRPC_ALLOW_EXCEPTIONS
|
||
|
|
func(std::forward<Args>(args)...);
|
||
|
|
#endif // GRPC_ALLOW_EXCEPTIONS
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
class DefaultGlobalCallbackHook final : public GlobalCallbackHook {
|
||
|
|
public:
|
||
|
|
void RunCallback(grpc_call* call,
|
||
|
|
absl::FunctionRef<void()> callback) override {
|
||
|
|
CatchingCallback(callback);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
std::shared_ptr<GlobalCallbackHook> GetGlobalCallbackHook();
|
||
|
|
void SetGlobalCallbackHook(GlobalCallbackHook* hook);
|
||
|
|
} // namespace grpc
|
||
|
|
|
||
|
|
#endif // GRPCPP_SUPPORT_GLOBAL_CALLBACK_HOOK_H
|