/*
 *
 * Copyright 2020 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 GRPC_CORE_LIB_GPRPP_EXAMINE_STACK_H
#define GRPC_CORE_LIB_GPRPP_EXAMINE_STACK_H

#include <grpc/support/port_platform.h>

#include <functional>
#include <string>

#include "absl/types/optional.h"

namespace grpc_core {

typedef std::string (*gpr_current_stack_trace_func)();

// Returns a current_stack_trace_provider.
gpr_current_stack_trace_func GetCurrentStackTraceProvider();

// Sets current_stack_trace_provider which provides a current-stack trace.
void SetCurrentStackTraceProvider(
    gpr_current_stack_trace_func current_stack_trace_provider);

// Returns the current stack trace as a string via current_stack_trace_provider
// If current_stack_trace_provider is not set, it returns absl::nullopt.
absl::optional<std::string> GetCurrentStackTrace();

}  // namespace grpc_core

#endif /* GRPC_CORE_LIB_GPRPP_EXAMINE_STACK_H */