summary refs log tree commit diff stats
path: root/tests/parallel/tflowvar.nim
blob: e44b29a8763f4f521539749678f62a3ace92742b (plain) (blame)
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
37
38
discard """
  matrix: "--mm:refc"
  output: '''foobarfoobar
bazbearbazbear

1'''
  cmd: "nim $target --threads:on $options $file"
  disabled: "openbsd"
"""

import threadpool

proc computeSomething(a, b: string): string = a & b & a & b & "\n"

proc main =
  let fvA = spawn computeSomething("foo", "bar")
  let fvB = spawn computeSomething("baz", "bear")

  echo(^fvA, ^fvB)

main()
sync()


type
  TIntSeq = seq[int]

proc t(): TIntSeq =
  result = @[1]

proc p(): int =
  var a: FlowVar[TIntSeq]
  parallel:
    var aa = spawn t()
    a = aa
  result = (^a)[0]

echo p()