| /** @file |
| |
| A brief file description |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you 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. |
| */ |
| |
| /************************************************************************** |
| Signal functions and handlers. |
| |
| **************************************************************************/ |
| |
| #pragma once |
| |
| typedef void (*signal_handler_t)(int signo, siginfo_t *info, void *ctx); |
| |
| // Default crash signal handler that dumps a stack trace and exits. |
| void signal_crash_handler(int, siginfo_t *, void *); |
| |
| // Attach a signal handler to fatal crash signals. |
| void signal_register_crash_handler(signal_handler_t); |
| // Attach a signal handler to the default et of signals we care about. |
| void signal_register_default_handler(signal_handler_t); |
| |
| // Format a siginfo_t into an informative(?) message on stderr. |
| void signal_format_siginfo(int signo, siginfo_t *, const char *); |
| |
| // Test whether a signal indicates a process crashing. |
| bool signal_is_crash(int signo); |
| |
| // Test whether the signal is masked. |
| bool signal_is_masked(int signo); |
| |
| // Test whether the signal is being handled by the given handler. |
| bool signal_check_handler(int signo, signal_handler_t handler); |
| |
| // Start a thread to test whether signals have the expected handler. Apparently useful for |
| // finding pthread bugs in some version of DEC Unix. |
| void signal_start_check_thread(signal_handler_t handler); |