61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
/*
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* Copyright (C) 2020-2022, IrineSistiana
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*
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* This file is part of mosdns.
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*
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* mosdns is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* mosdns is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package pool
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import (
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"sync"
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"time"
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)
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var (
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timerPool = sync.Pool{}
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)
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func GetTimer(t time.Duration) *time.Timer {
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timer, ok := timerPool.Get().(*time.Timer)
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if !ok {
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return time.NewTimer(t)
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}
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if timer.Reset(t) {
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panic("dispatcher.go getTimer: active timer trapped in timerPool")
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}
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return timer
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}
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func ReleaseTimer(timer *time.Timer) {
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if !timer.Stop() {
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select {
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case <-timer.C:
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default:
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}
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}
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timerPool.Put(timer)
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}
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func ResetAndDrainTimer(timer *time.Timer, d time.Duration) {
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if !timer.Stop() {
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select {
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case <-timer.C:
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default:
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}
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}
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timer.Reset(d)
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}
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