1 // 2 // 3 // Copyright 2020 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 GRPC_SRC_CORE_UTIL_EXAMINE_STACK_H 20 #define GRPC_SRC_CORE_UTIL_EXAMINE_STACK_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <string> 25 26 #include "absl/types/optional.h" 27 28 namespace grpc_core { 29 30 typedef std::string (*gpr_current_stack_trace_func)(); 31 32 // Returns a current_stack_trace_provider. 33 gpr_current_stack_trace_func GetCurrentStackTraceProvider(); 34 35 // Sets current_stack_trace_provider which provides a current-stack trace. 36 void SetCurrentStackTraceProvider( 37 gpr_current_stack_trace_func current_stack_trace_provider); 38 39 // Returns the current stack trace as a string via current_stack_trace_provider 40 // If current_stack_trace_provider is not set, it returns absl::nullopt. 41 absl::optional<std::string> GetCurrentStackTrace(); 42 43 } // namespace grpc_core 44 45 #endif // GRPC_SRC_CORE_UTIL_EXAMINE_STACK_H 46