lugu/qiloop

package util

import (
    "crypto/hmac"
    "crypto/rand"
    "crypto/sha256"
    "encoding/hex"
    "os"

    "github.com/denisbrodbeck/machineid"
)

var id string

func init() {
    var err error
    id, err = machineid.ProtectedID("qi-messaging")
    if err != nil {
        noise := make([]byte, 64)
        rand.Read(noise)
        mac := hmac.New(sha256.New, noise)
        id = hex.EncodeToString(mac.Sum(nil))
    }
}

// MachineID returns a fixed ID specific to an application.
func MachineID() string {
    return id
}

// ProcessID return the PID.
func ProcessID() uint32 {
    return uint32(os.Getpid())
}