tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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true-for-timeout-agent.js (2598B)

      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  True 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 flags: [async]
     18 includes: [atomicsHelper.js]
     19 features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, BigInt, arrow-function, async-functions]
     20 ---*/
     21 assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
     22 const RUNNING = 1;
     23 
     24 $262.agent.start(`
     25  const valueOf = {
     26    valueOf() {
     27      return true;
     28    }
     29  };
     30 
     31  const toPrimitive = {
     32    [Symbol.toPrimitive]() {
     33      return true;
     34    }
     35  };
     36 
     37  $262.agent.receiveBroadcast(async (sab) => {
     38    const i64a = new BigInt64Array(sab);
     39    Atomics.add(i64a, ${RUNNING}, 1n);
     40    $262.agent.report(await Atomics.waitAsync(i64a, 0, 0n, true).value);
     41    $262.agent.report(await Atomics.waitAsync(i64a, 0, 0n, valueOf).value);
     42    $262.agent.report(await Atomics.waitAsync(i64a, 0, 0n, toPrimitive).value);
     43    $262.agent.leaving();
     44  });
     45 `);
     46 
     47 const i64a = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4));
     48 
     49 $262.agent.safeBroadcastAsync(i64a, RUNNING, 1n).then(async agentCount => {
     50  assert.sameValue(agentCount, 1n, 'The value of `agentCount` is 1n');
     51 
     52  assert.sameValue(
     53    await $262.agent.getReportAsync(),
     54    'timed-out',
     55    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     56  );
     57 
     58  assert.sameValue(
     59    await $262.agent.getReportAsync(),
     60    'timed-out',
     61    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     62  );
     63 
     64  assert.sameValue(
     65    await $262.agent.getReportAsync(),
     66    'timed-out',
     67    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
     68  );
     69 
     70  assert.sameValue(
     71    Atomics.notify(i64a, 0),
     72    0,
     73    'Atomics.notify(new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)), 0) must return 0'
     74  );
     75 }).then($DONE, $DONE);