implicit-infinity-for-timeout.js (1497B)
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 Undefined 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 Undefined Return NaN. 19 20 5.If q is NaN, let t be +∞, else let t be max(q, 0) 21 22 flags: [async] 23 features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, computed-property-names, Symbol, Symbol.toPrimitive, arrow-function] 24 ---*/ 25 assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"'); 26 27 const i32a = new Int32Array( 28 new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) 29 ); 30 31 let {async, value} = Atomics.waitAsync(i32a, 0, 0); 32 33 value.then(result => { 34 35 assert.sameValue(result, "ok", 'The value of `result` is "ok"'); 36 37 }, $DONE).then($DONE, $DONE); 38 39 Atomics.notify(i32a, 0);