ducky/devices

Paddy 2015-11-12 Parent:b6494e1a499e

4:7bc6a84ac906 Go to Latest

ducky/devices/vendor/code.google.com/p/go-uuid/uuid/util.go

Minimal Memstore implementation. Create an in-memory version of the Storer that meets the minimal requirements set by our Storer tests so far.

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paddy@0 1 // Copyright 2011 Google Inc. All rights reserved.
paddy@0 2 // Use of this source code is governed by a BSD-style
paddy@0 3 // license that can be found in the LICENSE file.
paddy@0 4
paddy@0 5 package uuid
paddy@0 6
paddy@0 7 import (
paddy@0 8 "io"
paddy@0 9 )
paddy@0 10
paddy@0 11 // randomBits completely fills slice b with random data.
paddy@0 12 func randomBits(b []byte) {
paddy@0 13 if _, err := io.ReadFull(rander, b); err != nil {
paddy@0 14 panic(err.Error()) // rand should never fail
paddy@0 15 }
paddy@0 16 }
paddy@0 17
paddy@0 18 // xvalues returns the value of a byte as a hexadecimal digit or 255.
paddy@0 19 var xvalues = []byte{
paddy@0 20 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 21 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 22 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 23 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255,
paddy@0 24 255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 25 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 26 255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 27 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 28 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 29 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 30 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 31 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 32 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 33 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 34 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 35 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
paddy@0 36 }
paddy@0 37
paddy@0 38 // xtob converts the the first two hex bytes of x into a byte.
paddy@0 39 func xtob(x string) (byte, bool) {
paddy@0 40 b1 := xvalues[x[0]]
paddy@0 41 b2 := xvalues[x[1]]
paddy@0 42 return (b1 << 4) | b2, b1 != 255 && b2 != 255
paddy@0 43 }