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4c12217157
We need to run utils/swift-darwin-postprocess.py on every executable test on Darwin platforms to work around a dyld issue. (And to ad-hoc sign executables on platforms that need it.) Add a %target-codesign step to stress tests that are currently missing it.
106 lines
2.3 KiB
Swift
106 lines
2.3 KiB
Swift
// RUN: %target-build-swift %s %import-libdispatch -o %t_binary
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// RUN: %target-codesign %t_binary
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// RUN: %target-run %t_binary
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// REQUIRES: executable_test
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// REQUIRES: stress_test
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// REQUIRES: libdispatch
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import StdlibUnittest
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import Dispatch
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let iterations = 200_000
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class Thing {}
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class WBox<T: AnyObject> {
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weak var wref: T?
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init(_ ref: T) { self.wref = ref }
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init() { self.wref = nil }
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}
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let WeakReferenceRaceTests = TestSuite("WeakReferenceRaceTests")
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func forwardOptional<T>(_ t: T!) -> T {
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return t!
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}
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WeakReferenceRaceTests.test("class instance property [SR-192] (copy)") {
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let q = DispatchQueue(label: "", attributes: .concurrent)
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// Capture a weak reference via its container object
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// "https://bugs.swift.org/browse/SR-192"
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for i in 1...iterations {
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let box = WBox(Thing())
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let closure = {
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let nbox = WBox<Thing>()
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nbox.wref = box.wref
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_blackHole(nbox)
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}
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q.async(execute: closure)
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q.async(execute: closure)
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}
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q.async(flags: .barrier) {}
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}
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WeakReferenceRaceTests.test("class instance property [SR-192] (load)") {
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let q = DispatchQueue(label: "", attributes: .concurrent)
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// Capture a weak reference via its container object
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// "https://bugs.swift.org/browse/SR-192"
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for i in 1...iterations {
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let box = WBox(Thing())
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let closure = {
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if let ref = box.wref {
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_blackHole(ref)
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}
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}
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q.async(execute: closure)
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q.async(execute: closure)
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}
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q.async(flags: .barrier) {}
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}
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WeakReferenceRaceTests.test("direct capture (copy)") {
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let q = DispatchQueue(label: "", attributes: .concurrent)
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// Capture a weak reference directly in multiple closures
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for i in 1...iterations {
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weak var wref = Thing()
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let closure = {
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let nbox = WBox<Thing>()
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nbox.wref = wref
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_blackHole(nbox)
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}
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q.async(execute: closure)
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q.async(execute: closure)
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}
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q.async(flags: .barrier) {}
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}
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WeakReferenceRaceTests.test("direct capture (load)") {
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let q = DispatchQueue(label: "", attributes: .concurrent)
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// Capture a weak reference directly in multiple closures
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for i in 1...iterations {
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weak var wref = Thing()
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let closure = {
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if let ref = wref {
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_blackHole(ref)
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}
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}
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q.async(execute: closure)
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q.async(execute: closure)
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}
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q.async(flags: .barrier) {}
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}
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runAllTests()
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