nan-for-timeout.js (1516B)
1 // |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 2 // Copyright (C) 2018 Amal Hussein. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-atomics.wait 7 description: > 8 NaN timeout arg should result in an infinite timeout 9 info: | 10 Atomics.wait( typedArray, index, value, timeout ) 11 12 4.Let q be ? ToNumber(timeout). 13 ... 14 Undefined Return NaN. 15 5.If q is NaN, let t be +∞, else let t be max(q, 0) 16 17 includes: [atomicsHelper.js] 18 features: [Atomics, SharedArrayBuffer, TypedArray] 19 ---*/ 20 21 const RUNNING = 1; 22 23 $262.agent.start(` 24 $262.agent.receiveBroadcast(function(sab) { 25 const i32a = new Int32Array(sab); 26 Atomics.add(i32a, ${RUNNING}, 1); 27 28 $262.agent.report(Atomics.wait(i32a, 0, 0, NaN)); // NaN => +Infinity 29 $262.agent.leaving(); 30 }); 31 `); 32 33 const i32a = new Int32Array( 34 new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) 35 ); 36 37 $262.agent.safeBroadcast(i32a); 38 $262.agent.waitUntil(i32a, RUNNING, 1); 39 40 // Try to yield control to ensure the agent actually started to wait. 41 $262.agent.tryYield(); 42 43 assert.sameValue(Atomics.notify(i32a, 0), 1, 'Atomics.notify(i32a, 0) returns 1'); 44 assert.sameValue($262.agent.getReport(), "ok", '$262.agent.getReport() returns "ok"'); 45 46 reportCompare(0, 0);