vendor/github.com/hashicorp/go-plugin/process_posix.go

   1 // +build !windows
   2
   3 package plugin
   4
   5 import (
   6         "os"
   7         "syscall"
   8 )
   9
  10 // _pidAlive tests whether a process is alive or not by sending it Signal 0,
  11 // since Go otherwise has no way to test this.
  12 func _pidAlive(pid int) bool {
  13         proc, err := os.FindProcess(pid)
  14         if err == nil {
  15                 err = proc.Signal(syscall.Signal(0))
  16         }
  17
  18         return err == nil
  19 }