sarulabs/hydre

package main

import (
    "os"
    "syscall"
)

// isAlive uses kill 0 to check if the process is alive
func isAlive(pid int) bool {
    err := syscall.Kill(pid, 0)
    return pid != 0 && err == nil
}

func fileExist(filename string) bool {
    _, err := os.Stat(filename)
    return !os.IsNotExist(err)
}