db98cd4e4b
This does not fix the reload issue, but will give us flexibility to access the packetConn and listener to make this all work.
79 lines
1.7 KiB
Go
79 lines
1.7 KiB
Go
// +build !windows
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package core
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import (
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"io/ioutil"
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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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// trapSignalsPosix captures POSIX-only signals.
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func trapSignalsPosix() {
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go func() {
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sigchan := make(chan os.Signal, 1)
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signal.Notify(sigchan, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGUSR1)
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for sig := range sigchan {
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switch sig {
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case syscall.SIGTERM:
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log.Println("[INFO] SIGTERM: Terminating process")
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if PidFile != "" {
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os.Remove(PidFile)
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}
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os.Exit(0)
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case syscall.SIGQUIT:
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log.Println("[INFO] SIGQUIT: Shutting down")
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exitCode := executeShutdownCallbacks("SIGQUIT")
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err := Stop()
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if err != nil {
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log.Printf("[ERROR] SIGQUIT stop: %v", err)
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exitCode = 1
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}
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if PidFile != "" {
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os.Remove(PidFile)
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}
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os.Exit(exitCode)
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case syscall.SIGHUP:
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log.Println("[INFO] SIGHUP: Hanging up")
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err := Stop()
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if err != nil {
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log.Printf("[ERROR] SIGHUP stop: %v", err)
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}
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case syscall.SIGUSR1:
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log.Println("[INFO] SIGUSR1: Reloading")
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var updatedCaddyfile Input
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caddyfileMu.Lock()
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if caddyfile == nil {
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// Hmm, did spawing process forget to close stdin? Anyhow, this is unusual.
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log.Println("[ERROR] SIGUSR1: no Corefile to reload (was stdin left open?)")
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caddyfileMu.Unlock()
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continue
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}
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if caddyfile.IsFile() {
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body, err := ioutil.ReadFile(caddyfile.Path())
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if err == nil {
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updatedCaddyfile = CaddyfileInput{
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Filepath: caddyfile.Path(),
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Contents: body,
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RealFile: true,
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}
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}
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}
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caddyfileMu.Unlock()
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err := Restart(updatedCaddyfile)
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if err != nil {
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log.Printf("[ERROR] SIGUSR1: %v", err)
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}
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}
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}
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}()
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}
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