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go-timer
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⏰ A fast go timer with minimal goroutines.
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README.md
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go-timer
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Download (.md)
# GO-TIMER [](https://github.com/singchia/go-xtables/actions/workflows/go.yml) [](https://opensource.org/licenses/Apache-2.0) [](https://goreportcard.com/report/github.com/singchia/go-timer/v2) ## Overview A high performance timer with minimal goroutines. ### How it works  ### Features * One goroutine runs all * Goroutine safe * Clean and simple, no third-party deps at all * High performance with timing-wheels algorithm * Minimal resources use * Managed data and handler * Customizing channel * Well tested ## Usage ### Quick Start ```golang package main import ( "log" "time" timer "github.com/singchia/go-timer/v2" ) func main() { t1 := time.Now() // new timer t := timer.NewTimer() // add a tick in 1s tick := t.Add(time.Second) // wait for it <-tick.C() // tick fired as time is up, calculate and print the elapse log.Printf("time elapsed: %fs\n", time.Now().Sub(t1).Seconds()) } ``` ### Async handler ```golang package main import ( "log" "sync" "time" timer "github.com/singchia/go-timer/v2" ) func main() { // we need a wait group since using async handler wg := sync.WaitGroup{} wg.Add(1) // new timer t := timer.NewTimer() // add a tick in 1s with current time and a async handler t.Add(time.Second, timer.WithData(time.Now()), timer.WithHandler(func(event *timer.Event) { defer wg.Done() // tick fired as time is up, calculate and print the elapse log.Printf("time elapsed: %fs\n", time.Now().Sub(event.Data.(time.Time)).Seconds()) })) wg.Wait() } ``` ### With cyclically ```golang package main import ( "log" "time" timer "github.com/singchia/go-timer/v2" ) func main() { t1 := time.Now() // new timer t := timer.NewTimer() // add cyclical tick in 1s tick := t.Add(time.Second, timer.WithCyclically()) for { // wait for it cyclically <-tick.C() t2 := time.Now() // calculate and print the elapse log.Printf("time elapsed: %fs\n", t2.Sub(t1).Seconds()) t1 = t2 } } ``` ## License © Austin Zhai, 2015-2025 Released under the [Apache License 2.0](https://github.com/singchia/go-timer/blob/master/LICENSE)
