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// RUN: %target-run-simple-swift(-parse-as-library -target %target-swift-5.1-abi-triple -Xfrontend -concurrency-model=task-to-thread -g -Xlinker -object_path_lto -Xlinker /tmp/abc.o)
// REQUIRES: concurrency
// REQUIRES: executable_test
// REQUIRES: concurrency_runtime
// REQUIRES: freestanding
// UNSUPPORTED: threading_none
@_spi(_TaskToThreadModel) import _Concurrency
import StdlibUnittest
import Darwin
var globalContinuation : CheckedContinuation<Int, Never>? = nil
func waitOnContinuation(_unused : UnsafeMutableRawPointer) -> UnsafeMutableRawPointer? {
Task.runInline {
let result = await withCheckedContinuation { continuation in
globalContinuation = continuation
}
print("Continuation successfully resumed")
expectEqual(result, 10)
}
return nil
}
func resumeContinuation(_unused : UnsafeMutableRawPointer) -> UnsafeMutableRawPointer? {
Task.runInline {
while (globalContinuation == nil) {}
globalContinuation!.resume(returning: 10)
}
return nil
}
@main struct Main {
static func main() {
let tests = TestSuite("Continuations in task-to-thread")
tests.test("Basic continuations - no blocking") {
Task.runInline {
await withCheckedContinuation { continuation in
continuation.resume()
}
}
}
tests.test("Continuations - with blocking") {
var thread1 : pthread_t? = nil
guard pthread_create(&thread1, nil, waitOnContinuation, nil) == 0 else {
fatalError("pthread_create failed")
}
var thread2 : pthread_t? = nil
guard pthread_create(&thread2, nil, resumeContinuation, nil) == 0 else {
fatalError("pthread_create failed")
}
guard pthread_join(thread1!, nil) == 0 else {
fatalError("pthread_join failed")
}
guard pthread_join(thread2!, nil) == 0 else {
fatalError("pthread_join failed")
}
}
runAllTests()
}
}
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