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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/notify/count-defaults-to-infinity-missing.js | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/notify/count-defaults-to-infinity-missing.js b/js/src/tests/test262/built-ins/Atomics/notify/count-defaults-to-infinity-missing.js new file mode 100644 index 0000000000..e798141f30 --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/notify/count-defaults-to-infinity-missing.js @@ -0,0 +1,69 @@ +// |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 Amal Hussein. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.notify +description: > + Default to +Infinity when missing 'count' argument to Atomics.notify +info: | + Atomics.notify( typedArray, index, count ) + + ... + 3. If count is undefined, let c be +∞. + ... + +includes: [atomicsHelper.js] +features: [Atomics, SharedArrayBuffer, TypedArray] +---*/ + +const RUNNING = 0; // Index to notify agent has started. +const WAIT_INDEX = 1; // Index all agents are waiting on. +const BUFFER_SIZE = 2; + +const NUMAGENT = 4; // Total number of agents started + +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); + + // Wait until restarted by main thread. + var status = Atomics.wait(i32a, ${WAIT_INDEX}, 0); + + // Report wait status and then exit the agent. + var name = String.fromCharCode(0x41 + ${i}); // "A", "B", "C", or "D" + $262.agent.report(name + " " + status); + $262.agent.leaving(); + }); + `); +} + +const i32a = new Int32Array( + new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * BUFFER_SIZE) +); + +$262.agent.safeBroadcast(i32a); +$262.agent.waitUntil(i32a, RUNNING, NUMAGENT); + +// An agent may have been interrupted between reporting its initial report +// and the `Atomics.wait` call. Try to yield control to ensure the agent +// actually started to wait. +$262.agent.tryYield(); + +assert.sameValue(Atomics.notify(i32a, WAIT_INDEX /*, count missing */), NUMAGENT, + 'Atomics.notify(i32a, WAIT_INDEX /*, count missing */) returns the value of `NUMAGENT`'); + +const reports = []; +for (var i = 0; i < NUMAGENT; i++) { + reports.push($262.agent.getReport()); +} +reports.sort(); + +assert.sameValue(reports[0], 'A ok', 'The value of reports[0] is "A ok"'); +assert.sameValue(reports[1], 'B ok', 'The value of reports[1] is "B ok"'); +assert.sameValue(reports[2], 'C ok', 'The value of reports[2] is "C ok"'); +assert.sameValue(reports[3], 'D ok', 'The value of reports[3] is "D ok"'); + +reportCompare(0, 0); |