mirror of
https://github.com/moby/moby.git
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e8abaf217b
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
33 lines
602 B
Go
33 lines
602 B
Go
package utils
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import (
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"crypto/rand"
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"encoding/hex"
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"io"
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"os"
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"syscall"
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)
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func WaitOnPid(pid int) (exitcode int, err error) {
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child, err := os.FindProcess(pid)
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if err != nil {
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return -1, err
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}
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state, err := child.Wait()
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if err != nil {
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return -1, err
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}
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return getExitCode(state), nil
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}
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func getExitCode(state *os.ProcessState) int {
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return state.Sys().(syscall.WaitStatus).ExitStatus()
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}
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func GenerateRandomName(size int) (string, error) {
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id := make([]byte, size)
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if _, err := io.ReadFull(rand.Reader, id); err != nil {
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return "", err
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}
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return hex.EncodeToString(id), nil
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}
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