130 lines
3.2 KiB
Go
130 lines
3.2 KiB
Go
## timer
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[](https://github.com/antlabs/timer/actions)
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[](https://codecov.io/gh/antlabs/timer)
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timer是高性能定时器库
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## feature
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* 支持一次性定时器
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* 支持周期性定时器
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* 支持多种数据结构后端，最小堆，5级时间轮
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## 一次性定时器
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```go
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import (
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"github.com/antlabs/timer"
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"log"
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)
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func main() {
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tm := timer.NewTimer()
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tm.AfterFunc(1*time.Second, func() {
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log.Printf("after\n")
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})
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tm.AfterFunc(10*time.Second, func() {
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log.Printf("after\n")
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})
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tm.Run()
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}
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```
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## 周期性定时器
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```go
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import (
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"github.com/antlabs/timer"
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"log"
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)
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func main() {
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tm := timer.NewTimer()
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tm.ScheduleFunc(1*time.Second, func() {
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log.Printf("schedule\n")
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})
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tm.Run()
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}
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```
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## 自定义周期性定时器
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实现时间翻倍定时的例子
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```go
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type curstomTest struct {
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count int
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}
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// 只要实现Next接口就行
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func (c *curstomTest) Next(now time.Time) (rv time.Time) {
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rv = now.Add(time.Duration(c.count) * time.Millisecond * 10)
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c.count++
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return
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}
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func main() {
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tm := timer.NewTimer(timer.WithMinHeap())
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node := tm.CustomFunc(&curstomTest{count: 1}, func() {
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log.Printf("%v\n", time.Now())
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})
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tm.Run()
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}
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```
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## 取消某一个定时器
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```go
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import (
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"log"
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"time"
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"github.com/antlabs/timer"
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)
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func main() {
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tm := timer.NewTimer()
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// 只会打印2 time.Second
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tm.AfterFunc(2*time.Second, func() {
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log.Printf("2 time.Second")
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})
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// tk3 会被 tk3.Stop()函数调用取消掉
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tk3 := tm.AfterFunc(3*time.Second, func() {
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log.Printf("3 time.Second")
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})
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tk3.Stop() //取消tk3
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tm.Run()
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}
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```
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## 选择不同的的数据结构
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```go
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import (
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"github.com/antlabs/timer"
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"log"
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)
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func main() {
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tm := timer.NewTimer(timer.WithMinHeap())// 选择最小堆，默认时间轮
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}
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```
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## benchmark
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github.com/antlabs/timer 性能最高
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```
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goos: linux
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goarch: amd64
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pkg: benchmark
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Benchmark_antlabs_Timer_AddTimer/N-1m-16 9177537 124 ns/op
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Benchmark_antlabs_Timer_AddTimer/N-5m-16 10152950 128 ns/op
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Benchmark_antlabs_Timer_AddTimer/N-10m-16 9955639 127 ns/op
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Benchmark_RussellLuo_Timingwheel_AddTimer/N-1m-16 5316916 222 ns/op
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Benchmark_RussellLuo_Timingwheel_AddTimer/N-5m-16 5848843 218 ns/op
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Benchmark_RussellLuo_Timingwheel_AddTimer/N-10m-16 5872621 231 ns/op
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Benchmark_ouqiang_Timewheel/N-1m-16 720667 1622 ns/op
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Benchmark_ouqiang_Timewheel/N-5m-16 807018 1573 ns/op
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Benchmark_ouqiang_Timewheel/N-10m-16 666183 1557 ns/op
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Benchmark_Stdlib_AddTimer/N-1m-16 8031864 144 ns/op
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Benchmark_Stdlib_AddTimer/N-5m-16 8437442 151 ns/op
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Benchmark_Stdlib_AddTimer/N-10m-16 8080659 167 ns/op
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```
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* 压测代码位于
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https://github.com/junelabs/timer-benchmark |