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53 lines
1.8 KiB
Go
53 lines
1.8 KiB
Go
// Go support for leveled logs, analogous to https://github.com/google/glog.
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//
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// Copyright 2023 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build (unix || windows) && !linux
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package glog
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import (
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"os"
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"syscall"
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"time"
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)
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// abortProcess attempts to kill the current process in a way that will dump the
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// currently-running goroutines someplace useful (like stderr).
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//
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// It does this by sending SIGABRT to the current process. Unfortunately, the
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// signal may or may not be delivered to the current thread; in order to do that
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// portably, we would need to add a cgo dependency and call pthread_kill.
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//
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// If successful, abortProcess does not return.
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func abortProcess() error {
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p, err := os.FindProcess(os.Getpid())
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if err != nil {
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return err
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}
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if err := p.Signal(syscall.SIGABRT); err != nil {
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return err
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}
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// Sent the signal. Now we wait for it to arrive and any SIGABRT handlers to
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// run (and eventually terminate the process themselves).
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//
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// We could just "select{}" here, but there's an outside chance that would
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// trigger the runtime's deadlock detector if there happen not to be any
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// background goroutines running. So we'll sleep a while first to give
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// the signal some time.
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time.Sleep(10 * time.Second)
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select {}
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}
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