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// Copyright 2022 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Flags: --harmony-struct --allow-natives-syntax
let mutex = new Atomics.Mutex;
let cv = new Atomics.Condition;
(function TestConditionWaitNotAllowed() {
assertThrows(() => {
Atomics.Mutex.lock(mutex, () => {
%SetAllowAtomicsWait(false);
Atomics.Condition.wait(cv, mutex);
});
});
%SetAllowAtomicsWait(true);
})();
(function TestConditionMutexNotHeld() {
// Cannot wait on a mutex not owned by the current thread.
assertThrows(() => {
Atomics.Condition.wait(cv, mutex);
});
})();
(function TestConditionNoWaiters() {
// Notify returns number of threads woken up.
assertEquals(0, Atomics.Condition.notify(cv));
})();
(function TestConditionWaitTimeout() {
Atomics.Mutex.lock(mutex, () => {
assertEquals(false, Atomics.Condition.wait(cv, mutex, 100));
});
})();
// Mutexes can be assigned to shared objects.
(function TestConditionCanBeAssignedToSharedObjects() {
const Box = new SharedStructType(["payload"]);
const box = new Box;
box.payload = cv;
})();