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