tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

object-for-timeout-agent.js (3531B)

      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 esid: sec-atomics.waitasync
      6 description: >
      7  Object valueOf, toString, toPrimitive Zero timeout arg should result in an +0 timeout
      8 info: |
      9  Atomics.waitAsync( typedArray, index, value, timeout )
     10 
     11  1. Return DoWait(async, typedArray, index, value, timeout).
     12 
     13  DoWait ( mode, typedArray, index, value, timeout )
     14 
     15  6. Let q be ? ToNumber(timeout).
     16 
     17    Object -> Apply the following steps:
     18 
     19      Let primValue be ? ToPrimitive(argument, hint Number).
     20      Return ? ToNumber(primValue).
     21 
     22 flags: [async]
     23 includes: [atomicsHelper.js]
     24 features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, BigInt, arrow-function, async-functions]
     25 ---*/
     26 assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
     27 const RUNNING = 1;
     28 
     29 $262.agent.start(`
     30  const valueOf = {
     31    valueOf() {
     32      return 0;
     33    }
     34  };
     35 
     36  const toString = {
     37    toString() {
     38      return "0";
     39    }
     40  };
     41 
     42  const toPrimitive = {
     43    [Symbol.toPrimitive]() {
     44      return 0;
     45    }
     46  };
     47 
     48  $262.agent.receiveBroadcast(async (sab) => {
     49    const i64a = new BigInt64Array(sab);
     50    Atomics.add(i64a, ${RUNNING}, 1n);
     51    $262.agent.report(await Atomics.waitAsync(i64a, 0, 0n, valueOf).value);
     52    $262.agent.report(await Atomics.waitAsync(i64a, 0, 0n, toString).value);
     53    $262.agent.report(await Atomics.waitAsync(i64a, 0, 0n, toPrimitive).value);
     54    $262.agent.report(Atomics.waitAsync(i64a, 0, 0n, valueOf).value);
     55    $262.agent.report(Atomics.waitAsync(i64a, 0, 0n, toString).value);
     56    $262.agent.report(Atomics.waitAsync(i64a, 0, 0n, toPrimitive).value);
     57    $262.agent.leaving();
     58  });
     59 `);
     60 
     61 const i64a = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4));
     62 
     63 $262.agent.safeBroadcastAsync(i64a, RUNNING, 1n).then(async agentCount => {
     64  assert.sameValue(agentCount, 1n, 'The value of `agentCount` is 1n');
     65 
     66  assert.sameValue(
     67    await $262.agent.getReportAsync(),
     68    'timed-out',
     69    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     70  );
     71 
     72  assert.sameValue(
     73    await $262.agent.getReportAsync(),
     74    'timed-out',
     75    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     76  );
     77 
     78  assert.sameValue(
     79    await $262.agent.getReportAsync(),
     80    'timed-out',
     81    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     82  );
     83 
     84  assert.sameValue(
     85    await $262.agent.getReportAsync(),
     86    'timed-out',
     87    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     88  );
     89 
     90  assert.sameValue(
     91    await $262.agent.getReportAsync(),
     92    'timed-out',
     93    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     94  );
     95 
     96  assert.sameValue(
     97    await $262.agent.getReportAsync(),
     98    'timed-out',
     99    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
    100  );
    101 
    102  assert.sameValue(
    103    Atomics.notify(i64a, 0),
    104    0,
    105    'Atomics.notify(new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)), 0) must return 0'
    106  );
    107 }).then($DONE, $DONE);