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authorWim <wim@42.be>2020-08-10 00:29:54 +0200
committerGitHub <noreply@github.com>2020-08-10 00:29:54 +0200
commit4e50fd864921c556988c919269448efdb90fa961 (patch)
treea3625f03f8de3c4f3841364000a4ea3aa42c1533 /vendor/github.com/pborman/uuid/time.go
parentdfdffa0027334e55ce213fc6eb62206dbf48baf6 (diff)
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Use mattermost v5 module (#1192)
Diffstat (limited to 'vendor/github.com/pborman/uuid/time.go')
-rw-r--r--vendor/github.com/pborman/uuid/time.go87
1 files changed, 6 insertions, 81 deletions
diff --git a/vendor/github.com/pborman/uuid/time.go b/vendor/github.com/pborman/uuid/time.go
index eedf2421..5c0960d8 100644
--- a/vendor/github.com/pborman/uuid/time.go
+++ b/vendor/github.com/pborman/uuid/time.go
@@ -6,65 +6,18 @@ package uuid
import (
"encoding/binary"
- "sync"
- "time"
+
+ guuid "github.com/google/uuid"
)
// A Time represents a time as the number of 100's of nanoseconds since 15 Oct
// 1582.
-type Time int64
-
-const (
- lillian = 2299160 // Julian day of 15 Oct 1582
- unix = 2440587 // Julian day of 1 Jan 1970
- epoch = unix - lillian // Days between epochs
- g1582 = epoch * 86400 // seconds between epochs
- g1582ns100 = g1582 * 10000000 // 100s of a nanoseconds between epochs
-)
-
-var (
- timeMu sync.Mutex
- lasttime uint64 // last time we returned
- clock_seq uint16 // clock sequence for this run
-
- timeNow = time.Now // for testing
-)
-
-// UnixTime converts t the number of seconds and nanoseconds using the Unix
-// epoch of 1 Jan 1970.
-func (t Time) UnixTime() (sec, nsec int64) {
- sec = int64(t - g1582ns100)
- nsec = (sec % 10000000) * 100
- sec /= 10000000
- return sec, nsec
-}
+type Time = guuid.Time
// GetTime returns the current Time (100s of nanoseconds since 15 Oct 1582) and
// clock sequence as well as adjusting the clock sequence as needed. An error
// is returned if the current time cannot be determined.
-func GetTime() (Time, uint16, error) {
- defer timeMu.Unlock()
- timeMu.Lock()
- return getTime()
-}
-
-func getTime() (Time, uint16, error) {
- t := timeNow()
-
- // If we don't have a clock sequence already, set one.
- if clock_seq == 0 {
- setClockSequence(-1)
- }
- now := uint64(t.UnixNano()/100) + g1582ns100
-
- // If time has gone backwards with this clock sequence then we
- // increment the clock sequence
- if now <= lasttime {
- clock_seq = ((clock_seq + 1) & 0x3fff) | 0x8000
- }
- lasttime = now
- return Time(now), clock_seq, nil
-}
+func GetTime() (Time, uint16, error) { return guuid.GetTime() }
// ClockSequence returns the current clock sequence, generating one if not
// already set. The clock sequence is only used for Version 1 UUIDs.
@@ -74,39 +27,11 @@ func getTime() (Time, uint16, error) {
// clock sequence is generated the first time a clock sequence is requested by
// ClockSequence, GetTime, or NewUUID. (section 4.2.1.1) sequence is generated
// for
-func ClockSequence() int {
- defer timeMu.Unlock()
- timeMu.Lock()
- return clockSequence()
-}
-
-func clockSequence() int {
- if clock_seq == 0 {
- setClockSequence(-1)
- }
- return int(clock_seq & 0x3fff)
-}
+func ClockSequence() int { return guuid.ClockSequence() }
// SetClockSeq sets the clock sequence to the lower 14 bits of seq. Setting to
// -1 causes a new sequence to be generated.
-func SetClockSequence(seq int) {
- defer timeMu.Unlock()
- timeMu.Lock()
- setClockSequence(seq)
-}
-
-func setClockSequence(seq int) {
- if seq == -1 {
- var b [2]byte
- randomBits(b[:]) // clock sequence
- seq = int(b[0])<<8 | int(b[1])
- }
- old_seq := clock_seq
- clock_seq = uint16(seq&0x3fff) | 0x8000 // Set our variant
- if old_seq != clock_seq {
- lasttime = 0
- }
-}
+func SetClockSequence(seq int) { guuid.SetClockSequence(seq) }
// Time returns the time in 100s of nanoseconds since 15 Oct 1582 encoded in
// uuid. It returns false if uuid is not valid. The time is only well defined