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@@ -24,3 +24,4 @@ report.xml | |
| coverage.xml | ||
| coverage | ||
| *.txt | ||
| go.work* | ||
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| @@ -0,0 +1,43 @@ | ||
| // Copyright 2020 The Go Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style | ||
| // license that can be found in the LICENSE file. | ||
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| // Note: This file is copied from https://go-review.googlesource.com/c/go/+/276133 | ||
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| package timerpool | ||
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| import ( | ||
| "sync" | ||
| "time" | ||
| ) | ||
|
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| // GlobalTimerPool is a global pool for reusing *time.Timer. | ||
| var GlobalTimerPool TimerPool | ||
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| // TimerPool is a wrapper of sync.Pool which caches *time.Timer for reuse. | ||
| type TimerPool struct { | ||
| pool sync.Pool | ||
| } | ||
|
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| // Get returns a timer with a given duration. | ||
| func (tp *TimerPool) Get(d time.Duration) *time.Timer { | ||
| if v := tp.pool.Get(); v != nil { | ||
| timer := v.(*time.Timer) | ||
| timer.Reset(d) | ||
| return timer | ||
| } | ||
| return time.NewTimer(d) | ||
| } | ||
|
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||
| // Put tries to call timer.Stop() before putting it back into pool, | ||
| // if the timer.Stop() returns false (it has either already expired or been stopped), | ||
| // have a shot at draining the channel with residual time if there is one. | ||
| func (tp *TimerPool) Put(timer *time.Timer) { | ||
| if !timer.Stop() { | ||
| select { | ||
| case <-timer.C: | ||
| default: | ||
| } | ||
| } | ||
| tp.pool.Put(timer) | ||
| } |
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