Timer, Ticker的区别引出变量的逃逸情况.引发的思考 golang

Timer

Timer 定义后固定只执行一次,使用Reset会再触发一次.

timer := time.NewTimer(time.Second)//Timer 定义后固定只执行一次,使用Reset会再触发一次. //Timer的实现 go func(t *time.Timer) { for { select { case <-t.C: fmt.Println("timer:", 22) t.Reset(time.Second) }} }(timer)

Ticker

Ticker一但被定义, 每隔一段时间会自动触发

ticker := time.NewTicker(time.Second) //Ticker一但被定义, 每隔一段时间会自动触发.//Ticker的实现 go func(t *time.Ticker) { for { select { case <-t.C: fmt.Printf("ticker:%v\n", 11) } } }(ticker) //

【Timer, Ticker的区别引出变量的逃逸情况.引发的思考】以上go func(){}另一种写, 不使用形参.
go tool compile -m timer.go

以下是编译的过程, 看不太懂. 只知道变量逃逸了. 望高手指教.

timer.go:41:15: inlining call to fmt.Printf timer.go:51:16: inlining call to fmt.Println timer.go:61:9: inlining call to time.(*Ticker).Stop timer.go:62:10: inlining call to time.(*Timer).Stop timer.go:63:14: inlining call to fmt.Println timer.go:69:13: inlining call to time.(*Timer).Stop timer.go:70:14: inlining call to time.(*Ticker).Stop timer.go:25:13: inlining call to fmt.Println timer.go:37:5: func literal escapes to heap timer.go:37:5: func literal escapes to heap timer.go:47:5: func literal escapes to heap timer.go:47:5: func literal escapes to heap timer.go:59:5: func literal escapes to heap timer.go:59:5: func literal escapes to heap timer.go:32:11: leaking param: stop timer.go:67:5: func literal escapes to heap timer.go:67:5: func literal escapes to heap timer.go:41:15: io.Writer(os.Stdout) escapes to heap timer.go:41:31: 11 escapes to heap timer.go:51:16: io.Writer(os.Stdout) escapes to heap timer.go:51:17: "timer:" escapes to heap timer.go:51:27: 22 escapes to heap timer.go:47:10: leaking param: t timer.go:61:9: &time.t.r escapes to heap timer.go:59:10: leaking param: t timer.go:62:10: &time.t.r escapes to heap timer.go:59:26: leaking param: t1 timer.go:63:14: io.Writer(os.Stdout) escapes to heap timer.go:63:15: "回收资源" escapes to heap timer.go:69:13: &time.t.r escapes to heap timer.go:69:3: leaking closure reference timer timer.go:70:14: &time.t.r escapes to heap timer.go:70:3: leaking closure reference ticker timer.go:37:10: Show.func1 t does not escape timer.go:41:15: Show.func1 []interface {} literal does not escape timer.go:51:16: Show.func2 []interface {} literal does not escape timer.go:63:14: Show.func3 []interface {} literal does not escape timer.go:13:14: make(chan struct {}) escapes to heap timer.go:18:14: make(chan os.Signal) escapes to heap timer.go:25:13: io.Writer(os.Stdout) escapes to heap timer.go:25:14: "END" escapes to heap timer.go:20:15: main syscall.SIGKILL does not escape timer.go:20:15: main ... argument does not escape timer.go:25:13: main []interface {} literal does not escape :1: os.(*File).close .this does not escape

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