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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/wait/no-spurious-wakeup-on-add.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/wait/no-spurious-wakeup-on-add.js b/js/src/tests/test262/built-ins/Atomics/wait/no-spurious-wakeup-on-add.js new file mode 100644 index 0000000000..27a2914b2e --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/wait/no-spurious-wakeup-on-add.js @@ -0,0 +1,55 @@ +// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration()['arm64-simulator'])) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics +// Copyright (C) 2018 Rick Waldron. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.wait +description: > + Waiter does not spuriously notify on index which is subject to Add operation +includes: [atomicsHelper.js] +features: [Atomics, SharedArrayBuffer, TypedArray] +---*/ + +const RUNNING = 1; +const TIMEOUT = $262.agent.timeouts.small; + +const i32a = new Int32Array( + new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) +); + +$262.agent.start(` + $262.agent.receiveBroadcast(function(sab) { + const i32a = new Int32Array(sab); + Atomics.add(i32a, ${RUNNING}, 1); + + const before = $262.agent.monotonicNow(); + const unpark = Atomics.wait(i32a, 0, 0, ${TIMEOUT}); + const duration = $262.agent.monotonicNow() - before; + + $262.agent.report(duration); + $262.agent.report(unpark); + $262.agent.leaving(); + }); +`); + +$262.agent.safeBroadcast(i32a); +$262.agent.waitUntil(i32a, RUNNING, 1); + +// Try to yield control to ensure the agent actually started to wait. +$262.agent.tryYield(); + +Atomics.add(i32a, 0, 1); + +const lapse = $262.agent.getReport(); +assert( + lapse >= TIMEOUT, + 'The result of `(lapse >= TIMEOUT)` is true' +); +assert.sameValue( + $262.agent.getReport(), + 'timed-out', + '$262.agent.getReport() returns "timed-out"' +); +assert.sameValue(Atomics.notify(i32a, 0), 0, 'Atomics.notify(i32a, 0) returns 0'); + +reportCompare(0, 0); |