unless I have to do this: ``` return templates.ma...

# coroutines

[marcelo]

unless I have to do this:

return templates.map { renderTemplatePath -> 
  runBlocking {
    val result = async {
      renderMetricTimer.tagVal(package).time {
        //code
      }
    }
    result.await()
 }.toSet()
}

Obviously, I am new to coroutines, but this seems like a lot of coroutine builders, no?

[spand]

Why do you run something in async if you await it immediately after?

[marcelo]

the timer function is a suspend function.

[marcelo]

suspend fun <T> NeedsTag1<BooleanTagValue, Timer>.time(toTime: suspend () -> T): T {
    val timerStarted = this.start()
    try {
        val result = toTime()
        timerStarted.tagVal(true).stop()
        return result
    } catch (e: Throwable) {
        timerStarted.tagVal(false).stop()
        throw e
    }
}`

[spand]

You can call suspend functions from inside runBlocking

[marcelo]

OH, and avoid the async??

[spand]

Yes. Async is for parallel work only

[marcelo]

I'm still confuse on those. I thought that would use async when I need to return something.

[nulldev]

Nah, you can just do:

runBlocking {
    renderMetricTimer.tagVal(package).time {
        //code
    }
}.toSet()