| // Go support for leveled logs, analogous to https://github.com/google/glog. |
| // |
| // Copyright 2023 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| |
| //go:build (unix || windows) && !linux |
| |
| package glog |
| |
| import ( |
| "os" |
| "syscall" |
| "time" |
| ) |
| |
| // abortProcess attempts to kill the current process in a way that will dump the |
| // currently-running goroutines someplace useful (like stderr). |
| // |
| // It does this by sending SIGABRT to the current process. Unfortunately, the |
| // signal may or may not be delivered to the current thread; in order to do that |
| // portably, we would need to add a cgo dependency and call pthread_kill. |
| // |
| // If successful, abortProcess does not return. |
| func abortProcess() error { |
| p, err := os.FindProcess(os.Getpid()) |
| if err != nil { |
| return err |
| } |
| if err := p.Signal(syscall.SIGABRT); err != nil { |
| return err |
| } |
| |
| // Sent the signal. Now we wait for it to arrive and any SIGABRT handlers to |
| // run (and eventually terminate the process themselves). |
| // |
| // We could just "select{}" here, but there's an outside chance that would |
| // trigger the runtime's deadlock detector if there happen not to be any |
| // background goroutines running. So we'll sleep a while first to give |
| // the signal some time. |
| time.Sleep(10 * time.Second) |
| select {} |
| } |