1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
|
discard """
matrix: "--mm:refc"
outputsub: "channel is empty"
"""
# bug #1816
from random import rand
from os import sleep
type PComm = ptr Channel[int]
proc doAction(outC: PComm) {.thread.} =
for i in 0 ..< 5:
sleep(rand(50))
send(outC[], i)
var
thr: Thread[PComm]
chan: Channel[int]
open(chan)
createThread[PComm](thr, doAction, addr(chan))
while true:
let (flag, x) = tryRecv(chan)
if flag:
echo("received from chan: " & $x)
else:
echo "channel is empty"
break
echo "Finished listening"
joinThread(thr)
close(chan)
|