// |reftest| skip async -- Atomics.waitAsync is not supported // Copyright (C) 2020 Rick Waldron. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-atomics.waitasync description: > Waiter does not spuriously notify on index which is subject to And operation info: | AddWaiter ( WL, waiterRecord ) 5. Append waiterRecord as the last element of WL.[[Waiters]] 6. If waiterRecord.[[Timeout]] is finite, then in parallel, a. Wait waiterRecord.[[Timeout]] milliseconds. b. Perform TriggerTimeout(WL, waiterRecord). TriggerTimeout( WL, waiterRecord ) 3. If waiterRecord is in WL.[[Waiters]], then a. Set waiterRecord.[[Result]] to "timed-out". b. Perform RemoveWaiter(WL, waiterRecord). c. Perform NotifyWaiter(WL, waiterRecord). 4. Perform LeaveCriticalSection(WL). flags: [async] includes: [atomicsHelper.js] features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, BigInt, arrow-function, async-functions] ---*/ assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"'); const RUNNING = 1; const TIMEOUT = $262.agent.timeouts.small; const i64a = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)); $262.agent.start(` $262.agent.receiveBroadcast(async (sab) => { const i64a = new BigInt64Array(sab); Atomics.add(i64a, ${RUNNING}, 1n); const before = $262.agent.monotonicNow(); const unpark = await Atomics.waitAsync(i64a, 0, 0n, ${TIMEOUT}).value; const duration = $262.agent.monotonicNow() - before; $262.agent.report(duration); $262.agent.report(unpark); $262.agent.leaving(); }); `); $262.agent.safeBroadcastAsync(i64a, RUNNING, 1n).then(async agentCount => { assert.sameValue(agentCount, 1n, 'The value of `agentCount` is 1n'); Atomics.and(i64a, 0, 1n); const lapse = await $262.agent.getReportAsync(); assert(lapse >= TIMEOUT, 'The result of evaluating `(lapse >= TIMEOUT)` is true'); const result = await $262.agent.getReportAsync(); assert.sameValue(result, 'timed-out', 'The value of `result` is "timed-out"'); assert.sameValue( Atomics.notify(i64a, 0), 0, 'Atomics.notify(new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)), 0) must return 0' ); }).then($DONE, $DONE);