26 lines
495 B
Go
26 lines
495 B
Go
package zipkintracer
|
|
|
|
import (
|
|
"math/rand"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
var (
|
|
seededIDGen = rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
// The golang rand generators are *not* intrinsically thread-safe.
|
|
seededIDLock sync.Mutex
|
|
)
|
|
|
|
func randomID() uint64 {
|
|
seededIDLock.Lock()
|
|
defer seededIDLock.Unlock()
|
|
return uint64(seededIDGen.Int63())
|
|
}
|
|
|
|
func randomID2() (uint64, uint64) {
|
|
seededIDLock.Lock()
|
|
defer seededIDLock.Unlock()
|
|
return uint64(seededIDGen.Int63()), uint64(seededIDGen.Int63())
|
|
}
|