Sha256: cd6f82f7e35b2edc87607ecb1ba9dcfb3ee68fd3c86f5d647d03f8aee5397e66
Contents?: true
Size: 1.09 KB
Versions: 16
Compression:
Stored size: 1.09 KB
Contents
// Copyright (c) 2022 Snowflake Computing Inc. All rights reserved.
package gosnowflake
import (
"crypto/rand"
"fmt"
"strconv"
)
const rfc4122 = 0x40
// UUID is a RFC4122 compliant uuid type
type UUID [16]byte
var nilUUID UUID
// NewUUID creates a new snowflake UUID
func NewUUID() UUID {
var u UUID
rand.Read(u[:])
u[8] = (u[8] | rfc4122) & 0x7F
var version byte = 4
u[6] = (u[6] & 0xF) | (version << 4)
return u
}
func getChar(str string) byte {
i, _ := strconv.ParseUint(str, 16, 8)
return byte(i)
}
// ParseUUID parses a string of xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx into its UUID form
func ParseUUID(str string) UUID {
return UUID{
getChar(str[0:2]), getChar(str[2:4]), getChar(str[4:6]), getChar(str[6:8]),
getChar(str[9:11]), getChar(str[11:13]),
getChar(str[14:16]), getChar(str[16:18]),
getChar(str[19:21]), getChar(str[21:23]),
getChar(str[24:26]), getChar(str[26:28]), getChar(str[28:30]), getChar(str[30:32]), getChar(str[32:34]), getChar(str[34:36]),
}
}
func (u UUID) String() string {
return fmt.Sprintf("%x-%x-%x-%x-%x", u[0:4], u[4:6], u[6:8], u[8:10], u[10:])
}
Version data entries
16 entries across 16 versions & 1 rubygems