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vendor: golang.org/x/time v0.1.0

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The golang.org/x/ projects are now doing tagged releases.

full diff: https://github.com/golang/time/compare/f0f3c7e86c11...v0.1.0

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 71fa64a272)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2022-11-05 22:28:12 +01:00
parent d4e2341f93
commit e46e43470b
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GPG key ID: 76698F39D527CE8C
6 changed files with 76 additions and 55 deletions
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2
vendor.mod
View file

@ -84,7 +84,7 @@ require (
golang.org/x/net v0.0.0-20220906165146-f3363e06e74c
golang.org/x/sync v0.1.0
golang.org/x/sys v0.1.0
golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11
golang.org/x/time v0.1.0
google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21
google.golang.org/grpc v1.47.0
gotest.tools/v3 v3.4.0

4
vendor.sum
View file

@ -1451,8 +1451,8 @@ golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1/go.mod h1:tRJNPiyCQ0inRvYxb
golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11 h1:GZokNIeuVkl3aZHJchRrr13WCsols02MLUcz1U9is6M=
golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/time v0.1.0 h1:xYY+Bajn2a7VBmTM5GikTmnK8ZuX8YgnQCqZpbBNtmA=
golang.org/x/time v0.1.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20181011042414-1f849cf54d09/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

3
vendor/golang.org/x/time/AUTHORS generated vendored
View file

@ -1,3 +0,0 @@
# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

3
vendor/golang.org/x/time/CONTRIBUTORS generated vendored
View file

@ -1,3 +0,0 @@
# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

117
vendor/golang.org/x/time/rate/rate.go generated vendored
View file

@ -80,6 +80,19 @@ func (lim *Limiter) Burst() int {
return lim.burst
}
// TokensAt returns the number of tokens available at time t.
func (lim *Limiter) TokensAt(t time.Time) float64 {
lim.mu.Lock()
_, _, tokens := lim.advance(t) // does not mutute lim
lim.mu.Unlock()
return tokens
}
// Tokens returns the number of tokens available now.
func (lim *Limiter) Tokens() float64 {
return lim.TokensAt(time.Now())
}
// NewLimiter returns a new Limiter that allows events up to rate r and permits
// bursts of at most b tokens.
func NewLimiter(r Limit, b int) *Limiter {
@ -89,16 +102,16 @@ func NewLimiter(r Limit, b int) *Limiter {
}
}
// Allow is shorthand for AllowN(time.Now(), 1).
// Allow reports whether an event may happen now.
func (lim *Limiter) Allow() bool {
return lim.AllowN(time.Now(), 1)
}
// AllowN reports whether n events may happen at time now.
// AllowN reports whether n events may happen at time t.
// Use this method if you intend to drop / skip events that exceed the rate limit.
// Otherwise use Reserve or Wait.
func (lim *Limiter) AllowN(now time.Time, n int) bool {
return lim.reserveN(now, n, 0).ok
func (lim *Limiter) AllowN(t time.Time, n int) bool {
return lim.reserveN(t, n, 0).ok
}
// A Reservation holds information about events that are permitted by a Limiter to happen after a delay.
@ -125,17 +138,17 @@ func (r *Reservation) Delay() time.Duration {
}
// InfDuration is the duration returned by Delay when a Reservation is not OK.
const InfDuration = time.Duration(1<<63 - 1)
const InfDuration = time.Duration(math.MaxInt64)
// DelayFrom returns the duration for which the reservation holder must wait
// before taking the reserved action. Zero duration means act immediately.
// InfDuration means the limiter cannot grant the tokens requested in this
// Reservation within the maximum wait time.
func (r *Reservation) DelayFrom(now time.Time) time.Duration {
func (r *Reservation) DelayFrom(t time.Time) time.Duration {
if !r.ok {
return InfDuration
}
delay := r.timeToAct.Sub(now)
delay := r.timeToAct.Sub(t)
if delay < 0 {
return 0
}
@ -150,7 +163,7 @@ func (r *Reservation) Cancel() {
// CancelAt indicates that the reservation holder will not perform the reserved action
// and reverses the effects of this Reservation on the rate limit as much as possible,
// considering that other reservations may have already been made.
func (r *Reservation) CancelAt(now time.Time) {
func (r *Reservation) CancelAt(t time.Time) {
if !r.ok {
return
}
@ -158,7 +171,7 @@ func (r *Reservation) CancelAt(now time.Time) {
r.lim.mu.Lock()
defer r.lim.mu.Unlock()
if r.lim.limit == Inf || r.tokens == 0 || r.timeToAct.Before(now) {
if r.lim.limit == Inf || r.tokens == 0 || r.timeToAct.Before(t) {
return
}
@ -170,18 +183,18 @@ func (r *Reservation) CancelAt(now time.Time) {
return
}
// advance time to now
now, _, tokens := r.lim.advance(now)
t, _, tokens := r.lim.advance(t)
// calculate new number of tokens
tokens += restoreTokens
if burst := float64(r.lim.burst); tokens > burst {
tokens = burst
}
// update state
r.lim.last = now
r.lim.last = t
r.lim.tokens = tokens
if r.timeToAct == r.lim.lastEvent {
prevEvent := r.timeToAct.Add(r.limit.durationFromTokens(float64(-r.tokens)))
if !prevEvent.Before(now) {
if !prevEvent.Before(t) {
r.lim.lastEvent = prevEvent
}
}
@ -196,18 +209,20 @@ func (lim *Limiter) Reserve() *Reservation {
// The Limiter takes this Reservation into account when allowing future events.
// The returned Reservation’s OK() method returns false if n exceeds the Limiter's burst size.
// Usage example:
// r := lim.ReserveN(time.Now(), 1)
// if !r.OK() {
// // Not allowed to act! Did you remember to set lim.burst to be > 0 ?
// return
// }
// time.Sleep(r.Delay())
// Act()
//
// r := lim.ReserveN(time.Now(), 1)
// if !r.OK() {
// // Not allowed to act! Did you remember to set lim.burst to be > 0 ?
// return
// }
// time.Sleep(r.Delay())
// Act()
//
// Use this method if you wish to wait and slow down in accordance with the rate limit without dropping events.
// If you need to respect a deadline or cancel the delay, use Wait instead.
// To drop or skip events exceeding rate limit, use Allow instead.
func (lim *Limiter) ReserveN(now time.Time, n int) *Reservation {
r := lim.reserveN(now, n, InfDuration)
func (lim *Limiter) ReserveN(t time.Time, n int) *Reservation {
r := lim.reserveN(t, n, InfDuration)
return &r
}
@ -221,6 +236,18 @@ func (lim *Limiter) Wait(ctx context.Context) (err error) {
// canceled, or the expected wait time exceeds the Context's Deadline.
// The burst limit is ignored if the rate limit is Inf.
func (lim *Limiter) WaitN(ctx context.Context, n int) (err error) {
// The test code calls lim.wait with a fake timer generator.
// This is the real timer generator.
newTimer := func(d time.Duration) (<-chan time.Time, func() bool, func()) {
timer := time.NewTimer(d)
return timer.C, timer.Stop, func() {}
}
return lim.wait(ctx, n, time.Now(), newTimer)
}
// wait is the internal implementation of WaitN.
func (lim *Limiter) wait(ctx context.Context, n int, t time.Time, newTimer func(d time.Duration) (<-chan time.Time, func() bool, func())) error {
lim.mu.Lock()
burst := lim.burst
limit := lim.limit
@ -236,25 +263,25 @@ func (lim *Limiter) WaitN(ctx context.Context, n int) (err error) {
default:
}
// Determine wait limit
now := time.Now()
waitLimit := InfDuration
if deadline, ok := ctx.Deadline(); ok {
waitLimit = deadline.Sub(now)
waitLimit = deadline.Sub(t)
}
// Reserve
r := lim.reserveN(now, n, waitLimit)
r := lim.reserveN(t, n, waitLimit)
if !r.ok {
return fmt.Errorf("rate: Wait(n=%d) would exceed context deadline", n)
}
// Wait if necessary
delay := r.DelayFrom(now)
delay := r.DelayFrom(t)
if delay == 0 {
return nil
}
t := time.NewTimer(delay)
defer t.Stop()
ch, stop, advance := newTimer(delay)
defer stop()
advance() // only has an effect when testing
select {
case <-t.C:
case <-ch:
// We can proceed.
return nil
case <-ctx.Done():
@ -273,13 +300,13 @@ func (lim *Limiter) SetLimit(newLimit Limit) {
// SetLimitAt sets a new Limit for the limiter. The new Limit, and Burst, may be violated
// or underutilized by those which reserved (using Reserve or Wait) but did not yet act
// before SetLimitAt was called.
func (lim *Limiter) SetLimitAt(now time.Time, newLimit Limit) {
func (lim *Limiter) SetLimitAt(t time.Time, newLimit Limit) {
lim.mu.Lock()
defer lim.mu.Unlock()
now, _, tokens := lim.advance(now)
t, _, tokens := lim.advance(t)
lim.last = now
lim.last = t
lim.tokens = tokens
lim.limit = newLimit
}
@ -290,13 +317,13 @@ func (lim *Limiter) SetBurst(newBurst int) {
}
// SetBurstAt sets a new burst size for the limiter.
func (lim *Limiter) SetBurstAt(now time.Time, newBurst int) {
func (lim *Limiter) SetBurstAt(t time.Time, newBurst int) {
lim.mu.Lock()
defer lim.mu.Unlock()
now, _, tokens := lim.advance(now)
t, _, tokens := lim.advance(t)
lim.last = now
lim.last = t
lim.tokens = tokens
lim.burst = newBurst
}
@ -304,7 +331,7 @@ func (lim *Limiter) SetBurstAt(now time.Time, newBurst int) {
// reserveN is a helper method for AllowN, ReserveN, and WaitN.
// maxFutureReserve specifies the maximum reservation wait duration allowed.
// reserveN returns Reservation, not *Reservation, to avoid allocation in AllowN and WaitN.
func (lim *Limiter) reserveN(now time.Time, n int, maxFutureReserve time.Duration) Reservation {
func (lim *Limiter) reserveN(t time.Time, n int, maxFutureReserve time.Duration) Reservation {
lim.mu.Lock()
defer lim.mu.Unlock()
@ -313,7 +340,7 @@ func (lim *Limiter) reserveN(now time.Time, n int, maxFutureReserve time.Duratio
ok: true,
lim: lim,
tokens: n,
timeToAct: now,
timeToAct: t,
}
} else if lim.limit == 0 {
var ok bool
@ -325,11 +352,11 @@ func (lim *Limiter) reserveN(now time.Time, n int, maxFutureReserve time.Duratio
ok: ok,
lim: lim,
tokens: lim.burst,
timeToAct: now,
timeToAct: t,
}
}
now, last, tokens := lim.advance(now)
t, last, tokens := lim.advance(t)
// Calculate the remaining number of tokens resulting from the request.
tokens -= float64(n)
@ -351,12 +378,12 @@ func (lim *Limiter) reserveN(now time.Time, n int, maxFutureReserve time.Duratio
}
if ok {
r.tokens = n
r.timeToAct = now.Add(waitDuration)
r.timeToAct = t.Add(waitDuration)
}
// Update state
if ok {
lim.last = now
lim.last = t
lim.tokens = tokens
lim.lastEvent = r.timeToAct
} else {
@ -369,20 +396,20 @@ func (lim *Limiter) reserveN(now time.Time, n int, maxFutureReserve time.Duratio
// advance calculates and returns an updated state for lim resulting from the passage of time.
// lim is not changed.
// advance requires that lim.mu is held.
func (lim *Limiter) advance(now time.Time) (newNow time.Time, newLast time.Time, newTokens float64) {
func (lim *Limiter) advance(t time.Time) (newT time.Time, newLast time.Time, newTokens float64) {
last := lim.last
if now.Before(last) {
last = now
if t.Before(last) {
last = t
}
// Calculate the new number of tokens, due to time that passed.
elapsed := now.Sub(last)
elapsed := t.Sub(last)
delta := lim.limit.tokensFromDuration(elapsed)
tokens := lim.tokens + delta
if burst := float64(lim.burst); tokens > burst {
tokens = burst
}
return now, last, tokens
return t, last, tokens
}
// durationFromTokens is a unit conversion function from the number of tokens to the duration

2
vendor/modules.txt vendored
View file

@ -972,7 +972,7 @@ golang.org/x/text/secure/bidirule
golang.org/x/text/transform
golang.org/x/text/unicode/bidi
golang.org/x/text/unicode/norm
# golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11
# golang.org/x/time v0.1.0
## explicit
golang.org/x/time/rate
# google.golang.org/api v0.54.0