File: async_taskgroup_cancel_parent_affects_group.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (58 lines) | stat: -rw-r--r-- 1,350 bytes parent folder | download
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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
// RUN: %target-run-simple-swift( -target %target-swift-5.1-abi-triple %import-libdispatch -parse-as-library) | %FileCheck %s --dump-input always

// REQUIRES: executable_test
// REQUIRES: concurrency
// REQUIRES: libdispatch

// rdar://76038845
// REQUIRES: concurrency_runtime
// UNSUPPORTED: back_deployment_runtime

// rdar://86773147
// REQUIRES: swift_test_mode_optimize_none

import Dispatch

@available(SwiftStdlib 5.1, *)
func asyncEcho(_ value: Int) async -> Int {
  value
}

@available(SwiftStdlib 5.1, *)
func test_taskGroup_cancel_parent_affects_group() async {

  let x = detach {
    await withTaskGroup(of: Int.self, returning: Void.self) { group in
      group.spawn {
        await Task.sleep(3_000_000_000)
        let c = Task.isCancelled
        print("group task isCancelled: \(c)")
        return 0
      }

      _ = await group.next()
      let c = Task.isCancelled
      print("group isCancelled: \(c)")
    }
    let c = Task.isCancelled
    print("detached task isCancelled: \(c)")
  }

  x.cancel()
  try! await x.get()

  // CHECK: group task isCancelled: true
  // CHECK: group isCancelled: true
  // CHECK: detached task isCancelled: true
  // CHECK: done
  print("done")
}



@available(SwiftStdlib 5.1, *)
@main struct Main {
  static func main() async {
    await test_taskGroup_cancel_parent_affects_group()
  }
}