// Copyright (C) 2017 Mozilla Corporation.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-atomics.wake
description: >
  Test that Atomics.wake wakes all waiters if that's what the count is.
includes: [atomicsHelper.js]
features: [Atomics, SharedArrayBuffer, TypedArray]
---*/

const WAIT_INDEX = 0;             // Waiters on this will be woken
const WAIT_FAKE = 1;              // Waiters on this will not be woken
const RUNNING = 2;                // Accounting of live agents
const NUMAGENT = 3;
const BUFFER_SIZE = 4;

for (var i = 0; i < NUMAGENT; i++) {
  $262.agent.start(`
    $262.agent.receiveBroadcast(function(sab) {
      const i32a = new Int32Array(sab);
      Atomics.add(i32a, ${RUNNING}, 1);
      $262.agent.report("A " + Atomics.wait(i32a, ${WAIT_INDEX}, 0));
      $262.agent.leaving();
    });
  `);
}

$262.agent.start(`
  $262.agent.receiveBroadcast(function(sab) {
    const i32a = new Int32Array(sab);
    Atomics.add(i32a, ${RUNNING}, 1);
    // This will always time out.
    $262.agent.report("B " + Atomics.wait(i32a, ${WAIT_FAKE}, 0, 10));
    $262.agent.leaving();
  });
`);

const i32a = new Int32Array(
  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * BUFFER_SIZE)
);

$262.agent.broadcast(i32a.buffer);

// Wait for agents to be running.
$262.agent.waitUntil(i32a, RUNNING, NUMAGENT + 1);

// Then wait some more to give the agents a fair chance to wait.  If we don't,
// we risk sending the wakeup before agents are sleeping, and we hang.
$262.agent.sleep(50);

// Wake all waiting on WAIT_INDEX, should be 3 always, they won't time out.
assert.sameValue(
  Atomics.wake(i32a, WAIT_INDEX),
  NUMAGENT,
  'Atomics.wake(i32a, WAIT_INDEX) equals the value of `NUMAGENT` (3)'
);

const reports = [];
for (var i = 0; i < NUMAGENT + 1; i++) {
  reports.push($262.agent.getReport());
}
reports.sort();

for (var i = 0; i < NUMAGENT; i++) {
  assert.sameValue(reports[i], 'A ok', 'The value of reports[i] is "A ok"');
}
assert.sameValue(reports[NUMAGENT], 'B timed-out', 'The value of reports[NUMAGENT] is "B timed-out"');