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47 lines
729 B
47 lines
729 B
// +build linux darwin
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package main
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import (
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"log"
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"os"
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"os/signal"
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"syscall"
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)
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func init() {
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go reapChildren()
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}
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func childSignal(notify chan bool) {
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var sigs = make(chan os.Signal, 3)
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signal.Notify(sigs, syscall.SIGCHLD)
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for {
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<-sigs
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select {
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case notify <- true:
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default:
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// Channel full, does not matter as we wait for all children.
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}
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}
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}
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func reapChildren() {
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var wstatus syscall.WaitStatus
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notify := make(chan bool, 1)
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go childSignal(notify)
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for {
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pid, err := syscall.Wait4(-1, &wstatus, 0, nil)
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for err == syscall.EINTR {
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pid, err = syscall.Wait4(-1, &wstatus, 0, nil)
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}
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if err == syscall.ECHILD {
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break
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}
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log.Printf("pid %d, finished, wstatus: %+v", pid, wstatus)
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}
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}
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