mirror of
https://github.com/Luzifer/duplicity-backup.git
synced 2024-12-21 11:01:20 +00:00
33 lines
663 B
Go
33 lines
663 B
Go
|
package lockfile
|
||
|
|
|
||
|
|
import (
|
||
|
|
"os"
|
||
|
|
"reflect"
|
||
|
|
"syscall"
|
||
|
|
)
|
||
|
|
|
||
|
|
func isProcessAlive(p *os.Process) error {
|
||
|
|
// Extract handle value from the os.Process struct to avoid the need
|
||
|
|
// of a second, manually opened process handle.
|
||
|
|
value := reflect.ValueOf(p)
|
||
|
|
// Dereference *os.Process to os.Process
|
||
|
|
value = value.Elem()
|
||
|
|
field := value.FieldByName("handle")
|
||
|
|
|
||
|
|
handle := syscall.Handle(field.Uint())
|
||
|
|
|
||
|
|
var code uint32
|
||
|
|
err := syscall.GetExitCodeProcess(handle, &code)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
// code will contain the exit code of the process or 259 (STILL_ALIVE)
|
||
|
|
// if the process has not exited yet.
|
||
|
|
if code == 259 {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
return ErrDeadOwner
|
||
|
|
}
|