nan-for-timeout-agent.js (1955B)
1 // |reftest| shell-option(--setpref=atomics_wait_async) skip-if(!this.hasOwnProperty('SharedArrayBuffer')||!this.hasOwnProperty('Atomics')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))||!xulRuntime.shell) async -- SharedArrayBuffer,Atomics is not enabled unconditionally, ARM64 Simulator cannot emulate atomics, requires shell-options 2 // Copyright (C) 2020 Rick Waldron. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-atomics.waitasync 7 description: > 8 NaN timeout arg should result in an infinite timeout 9 info: | 10 Atomics.waitAsync( typedArray, index, value, timeout ) 11 12 1. Return DoWait(async, typedArray, index, value, timeout). 13 14 DoWait ( mode, typedArray, index, value, timeout ) 15 16 6. Let q be ? ToNumber(timeout). 17 18 flags: [async] 19 includes: [atomicsHelper.js] 20 features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, arrow-function, async-functions] 21 ---*/ 22 assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"'); 23 24 const RUNNING = 1; 25 26 $262.agent.start(` 27 $262.agent.receiveBroadcast(async (sab) => { 28 const i32a = new Int32Array(sab); 29 Atomics.add(i32a, ${RUNNING}, 1); 30 31 $262.agent.report(await Atomics.waitAsync(i32a, 0, 0, NaN).value); // NaN => +Infinity 32 $262.agent.leaving(); 33 }); 34 `); 35 36 const i32a = new Int32Array( 37 new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) 38 ); 39 40 $262.agent.safeBroadcastAsync(i32a, RUNNING, 1).then(async (agentCount) => { 41 42 assert.sameValue(agentCount, 1, 'The value of `agentCount` is 1'); 43 44 assert.sameValue(Atomics.notify(i32a, 0), 1, 'Atomics.notify(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)), 0) must return 1'); 45 46 assert.sameValue( 47 await $262.agent.getReportAsync(), 48 'ok', 49 '(await $262.agent.getReportAsync()) resolves to the value "ok"' 50 ); 51 52 }).then($DONE, $DONE);