+func sendSignalOnDeadPPID(intvl time.Duration, signum, ppidOrig int, cmd *exec.Cmd, logger *log.Logger) {
+ ticker := time.NewTicker(intvl)
+ for range ticker.C {
+ ppid := os.Getppid()
+ if ppid == ppidOrig {
+ continue
+ }
+ if cmd.Process == nil {
+ // Child process isn't running yet
+ continue
+ }
+ logger.Printf("notice: crunchstat ppid changed from %d to %d -- killing child pid %d with signal %d", ppidOrig, ppid, cmd.Process.Pid, signum)
+ err := cmd.Process.Signal(syscall.Signal(signum))
+ if err != nil {
+ logger.Printf("error: sending signal: %s", err)
+ continue
+ }
+ ticker.Stop()
+ break
+ }
+}
+