Function processAlive

watch/process_unix.go:24–33

processAlive reports whether a process with the given PID is currently running. FindProcess always succeeds on Unix, so liveness is probed with signal 0.

(pid int)

// running. FindProcess always succeeds on Unix, so liveness is probed with
// signal 0.
func processAlive(pid int) bool {
	if pid <= 0 {
		return false
	}
	proc, err := os.FindProcess(pid)
	if err != nil {
		return false
	}
	return proc.Signal(syscall.Signal(0)) == nil
}

// terminateDaemon stops the daemon on Unix with SIGTERM so it can shut down
// gracefully. This matches long-standing behavior and does not gate on