Tizen_4.0 base
[platform/upstream/docker-engine.git] / pkg / pidfile / pidfile_windows.go
1 package pidfile
2
3 import "syscall"
4
5 const (
6         processQueryLimitedInformation = 0x1000
7
8         stillActive = 259
9 )
10
11 func processExists(pid int) bool {
12         h, err := syscall.OpenProcess(processQueryLimitedInformation, false, uint32(pid))
13         if err != nil {
14                 return false
15         }
16         var c uint32
17         err = syscall.GetExitCodeProcess(h, &c)
18         syscall.Close(h)
19         if err != nil {
20                 return c == stillActive
21         }
22         return true
23 }