我目前有这段代码试图计算触发某个条件所花费的时间。（伪）：
timeDelay = 900000 // time.Microsecond
for {
// if a certain something happens, start a counting (time)
if (certainSomething) {
startTime = time.Now();
if !prevTime.IsZero() {
// add the time elapsed time to timeTick
diffTime = time.Since(prevTime)
timeTick = timeTick + diffTime
}
prevTime = startTime
}
if (timeTick < timeDelay) { // lessThan()
// still has not reached target count (time elapsed)
fmt.Println("Not Yet")
// we dont want to get to the end of the loop yet
continue
}
if (timeTick > timeDelay) { // greaterThan()
// has finally reached the target count (time elapsed)
fmt.Println("Yes! Finally")
// yes the delay has been reached lets reset the time
// and if `thisHappened` is triggered again, lets start counting again
timeTick = time.Duration(0 * time.Microsecond)
}
// function shouldn't be called if the elapsed amount
// of time required has not yet been reached
iShouldOnlyBeCalledWhenDelayHasBeenReached();
}
我也将这些用作辅助功能（实际代码）
func lessThan(diff time.Duration, upper int) bool {
return diff < time.Duration(upper)*time.Microsecond && diff != 0
}
func greaterThan(diff time.Duration, upper int) bool {
return diff > time.Duration(upper)*time.Microsecond
}
但是，我对自己的工作方式不满意。我不应该算数吧？我应该倒数...我只是感到困惑，需要在我应该使用哪种方法上寻求帮助。
我想发生的事情：
1. 发生倒计时时从timeDelay0开始倒数certainSomething。
2. iShouldOnlyBeCalledWhenDelayHasBeenReached在倒数到0之前不要调用
。3.这都应该在一个循环内发生，服务器循环会准确地接收数据包。
我的问题：
1.我应该怎么做才能实现这种倒计时风格？
谢谢您，任何建议或示例代码都会有很大帮助。
注意：循环中还有其他功能。在做其他事情。这是主循环。我做不到
Sleep。
您可以设置一个频道，以在超出时间时通知您。
这里有一个例子玩
它的另一个好处是，在select语句中，您可以具有其他用途的其他渠道。例如，如果您要在此循环中执行其他工作，则还可以在goroutine中生成该工作并将其发送回另一个通道。
然后，您timeDelay在其他工作完成或完成后退出。
package main
import (
"fmt"
"time"
)
func main() {
certainSomething := true // will cause time loop to repeat
timeDelay := 900 * time.Millisecond // == 900000 * time.Microsecond
var endTime <-chan time.Time // signal for when timer us up
for {
// if a certain something happens, start a timer
if certainSomething && endTime == nil {
endTime = time.After(timeDelay)
}
select {
case <-endTime:
fmt.Println("Yes Finally!")
endTime = nil
default:
fmt.Println("not yet")
time.Sleep(50 * time.Millisecond) // simulate work
continue
}
// function shouldn't be called if the elapsed amount
// of time required has not yet been reached
iShouldOnlyBeCalledWhenDelayHasBeenReached() // this could also just be moved to the <- endtime block above
}
}
func iShouldOnlyBeCalledWhenDelayHasBeenReached() {
fmt.Println("I've been called")
}
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