// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration()['arm64-simulator'])) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics // Copyright (C) 2018 Rick Waldron. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-atomics.wait description: > Waiter does not spuriously nofity on index which is subject to And operation includes: [atomicsHelper.js] features: [Atomics, BigInt, SharedArrayBuffer, TypedArray] ---*/ 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(function(sab) { const i64a = new BigInt64Array(sab); Atomics.add(i64a, ${RUNNING}, 1n); const before = $262.agent.monotonicNow(); const unpark = Atomics.wait(i64a, 0, 0n, ${TIMEOUT}); const duration = $262.agent.monotonicNow() - before; $262.agent.report(duration); $262.agent.report(unpark); $262.agent.leaving(); }); `); $262.agent.safeBroadcast(i64a); $262.agent.waitUntil(i64a, RUNNING, 1n); // Try to yield control to ensure the agent actually started to wait. $262.agent.tryYield(); Atomics.and(i64a, 0, 1n); const lapse = $262.agent.getReport(); assert( lapse >= TIMEOUT, 'The result of `(lapse >= TIMEOUT)` is true' ); assert.sameValue( $262.agent.getReport(), 'timed-out', '$262.agent.getReport() returns "timed-out"' ); assert.sameValue(Atomics.notify(i64a, 0), 0, 'Atomics.notify(i64a, 0) returns 0'); reportCompare(0, 0);