Async probes

anim_manual.nim

import asyncdispatch
import httpclient
import os

proc task(i: int): Future[void] {.async.} =
  echo("Started: " & $i)
  await sleepAsync(i*1000+500)
  echo("Ended: " & $i)

proc main() {.async.} =
  var ft = newseq[Future[void]]()
  for i in countdown(10,1):
    ft.add task(i)
  echo("Done placing!")
  for i in ft:
    await i
  echo("Done waiting!")

asyncCheck main()
while hasPendingOperations():
  poll()
  sleep(10)

anim_waitFor.nim

import asyncdispatch
import httpclient

proc task(i: int): Future[void] {.async.} =
  echo("Started: " & $i)
  await sleepAsync(i*1000+500)
  echo("Ended: " & $i)

proc main() {.async.} =
  var ft = newseq[Future[void]]()
  for i in countdown(10,1):
    ft.add task(i)
  echo("Done placing!")
  for i in ft:
    await i
  echo("Done waiting!")

waitFor main()