gf/g/os/gtimer/gtimer.go

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// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
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//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
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// Package gtimer implements Hierarchical Timing Wheel for interval/delayed jobs running and management.
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//
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// 任务定时器,
// 高性能的分层时间轮任务管理模块,用于管理间隔/延迟运行任务。
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// 与gcron模块的区别是时间轮模块只管理间隔执行任务并且更注重执行效率(纳秒级别)。
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// 需要注意执行时间间隔的准确性问题: https://github.com/golang/go/issues/14410
package gtimer
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import (
"github.com/gogf/gf/g/internal/cmdenv"
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"math"
"time"
)
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const (
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STATUS_READY = 0
STATUS_RUNNING = 1
STATUS_STOPPED = 2
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STATUS_CLOSED = -1
gPANIC_EXIT = "exit"
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gDEFAULT_TIMES = math.MaxInt32
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gDEFAULT_SLOT_NUMBER = 10
gDEFAULT_WHEEL_INTERVAL = 50
gDEFAULT_WHEEL_LEVEL = 6
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)
var (
// 默认定时器属性参数值
defaultSlots = cmdenv.Get("gf.gtimer.slots", gDEFAULT_SLOT_NUMBER).Int()
defaultLevel = cmdenv.Get("gf.gtimer.level", gDEFAULT_WHEEL_LEVEL).Int()
defaultInterval = cmdenv.Get("gf.gtimer.interval", gDEFAULT_WHEEL_INTERVAL).TimeDuration()*time.Millisecond
// 默认的wheel管理对象
defaultTimer = New(defaultSlots, defaultInterval, defaultLevel)
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)
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// 类似与js中的SetTimeout一段时间后执行回调函数。
func SetTimeout(delay time.Duration, job JobFunc) {
AddOnce(delay, job)
}
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// 类似与js中的SetInterval每隔一段时间执行指定回调函数。
func SetInterval(interval time.Duration, job JobFunc) {
Add(interval, job)
}
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// 添加执行方法。
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func Add(interval time.Duration, job JobFunc) *Entry {
return defaultTimer.Add(interval, job)
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}
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// 添加执行方法,更多参数控制。
func AddEntry(interval time.Duration, job JobFunc, singleton bool, times int, status int) *Entry {
return defaultTimer.AddEntry(interval, job, singleton, times, status)
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}
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// 添加单例运行循环任务。
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func AddSingleton(interval time.Duration, job JobFunc) *Entry {
return defaultTimer.AddSingleton(interval, job)
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}
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// 添加只运行一次的循环任务。
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func AddOnce(interval time.Duration, job JobFunc) *Entry {
return defaultTimer.AddOnce(interval, job)
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}
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// 添加运行指定次数的循环任务。
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func AddTimes(interval time.Duration, times int, job JobFunc) *Entry {
return defaultTimer.AddTimes(interval, times, job)
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}
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// 延迟添加循环任务。
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func DelayAdd(delay time.Duration, interval time.Duration, job JobFunc) {
defaultTimer.DelayAdd(delay, interval, job)
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}
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// 延迟添加循环任务, 支持完整的参数。
func DelayAddEntry(delay time.Duration, interval time.Duration, job JobFunc, singleton bool, times int, status int) {
defaultTimer.DelayAddEntry(delay, interval, job, singleton, times, status)
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}
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// 延迟添加单例循环任务delay参数单位为秒
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func DelayAddSingleton(delay time.Duration, interval time.Duration, job JobFunc) {
defaultTimer.DelayAddSingleton(delay, interval, job)
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}
// 延迟添加只运行一次的循环任务delay参数单位为秒
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func DelayAddOnce(delay time.Duration, interval time.Duration, job JobFunc) {
defaultTimer.DelayAddOnce(delay, interval, job)
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}
// 延迟添加运行指定次数的循环任务delay参数单位为秒
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func DelayAddTimes(delay time.Duration, interval time.Duration, times int, job JobFunc) {
defaultTimer.DelayAddTimes(delay, interval, times, job)
}
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// 在Job方法中调用停止当前运行的任务。
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func Exit() {
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panic(gPANIC_EXIT)
}