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// RUN: %target-build-swift -sanitize=thread %s -o %t_binary
// RUN: %target-codesign %t_binary
// RUN: %env-TSAN_OPTIONS=halt_on_error=1 %target-run %t_binary
// REQUIRES: executable_test
// REQUIRES: stress_test
// REQUIRES: tsan_runtime
// REQUIRES: foundation
// Check that TSan ignores the retain count update locks in the runtime.
import Foundation
public class Dummy {
func doNothing() {
}
}
public class DummyNSObject : NSObject {
func doNothing() {
}
}
public class RaceRunner : NSObject {
static var g: Int = 0
static var staticSwiftMember: Dummy = Dummy()
static var staticNSObjectMember: DummyNSObject = DummyNSObject()
var swiftMember: Dummy
var nsObjectMember: DummyNSObject
override init() {
swiftMember = Dummy()
nsObjectMember = DummyNSObject()
}
func triggerRace() {
// Add accesses that potentially lock in Swift runtime.
swiftMember.doNothing()
nsObjectMember.doNothing()
RaceRunner.staticSwiftMember.doNothing()
RaceRunner.staticNSObjectMember.doNothing()
RaceRunner.g = RaceRunner.g + 1
// Add accesses that potentially lock in Swift runtime.
swiftMember.doNothing()
nsObjectMember.doNothing()
RaceRunner.staticSwiftMember.doNothing()
RaceRunner.staticNSObjectMember.doNothing()
}
}
// Execute concurrently.
import StdlibUnittest
var RaceTestSuite = TestSuite("t")
RaceTestSuite
.test("test_tsan_ignores_arc_locks")
.crashOutputMatches("ThreadSanitizer: data race")
.code {
expectCrashLater()
runRaceTest(trials: 1) {
let RaceRunnerInstance: RaceRunner = RaceRunner()
RaceRunnerInstance.triggerRace()
}
}
runAllTests()
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