一个信号量与定时器的例子(Golang)

来源：互联网发布：windows默认字体包编辑：程序博客网时间：2024/06/06 02:05

程序可用来定时执行一些任务，并通过信号量处理，在被强制中断时，也能做相应警告及清理处理.

package main//信号量与定时器//author: Xiong Chuan Liang//date: 2015-2-25import "fmt"import "os"import "os/signal"import "time"func main() {sigs := make(chan os.Signal, 1)done := make(chan bool, 1)signal.Notify(sigs, os.Interrupt, os.Kill)go func() {sig := <-sigsswitch sig {case os.Interrupt:fmt.Println("signal: Interrupt")case os.Kill:fmt.Println("signal: Kill")default:fmt.Println("signal: Others")}done <- true}()fmt.Println("awaiting signal")//main()....go JobTicker(done)<-doneclose(done)//app.Exit()fmt.Println("exiting")}func JobTicker(done <-chan bool) {ticker := time.NewTicker(time.Second)defer ticker.Stop()for {select {case <-done:returncase <-ticker.C:fmt.Println("job......")}}}

如果按 ctrl-C 则结果如下:

awaiting signaljob......job......signal: Interruptinterruptexiting

Go by Example: Signals: https://gobyexample.com/signals

MAIL: xcl_168@aliyun.com

Blog: http://blog.csdn.net/xcl168

0 0