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_CORE_LIB_GPRPP_EXAMINE_STACK_H 20 #define GRPC_CORE_LIB_GPRPP_EXAMINE_STACK_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <functional> 25 #include <string> 26 27 #include "absl/types/optional.h" 28 29 namespace grpc_core { 30 31 typedef std::string (*gpr_current_stack_trace_func)(); 32 33 // Returns a current_stack_trace_provider. 34 gpr_current_stack_trace_func GetCurrentStackTraceProvider(); 35 36 // Sets current_stack_trace_provider which provides a current-stack trace. 37 void SetCurrentStackTraceProvider( 38 gpr_current_stack_trace_func current_stack_trace_provider); 39 40 // Returns the current stack trace as a string via current_stack_trace_provider 41 // If current_stack_trace_provider is not set, it returns absl::nullopt. 42 absl::optional<std::string> GetCurrentStackTrace(); 43 44 } // namespace grpc_core 45 46 #endif /* GRPC_CORE_LIB_GPRPP_EXAMINE_STACK_H */ 47