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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/notify/notify-all-on-loc.js | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/notify/notify-all-on-loc.js b/js/src/tests/test262/built-ins/Atomics/notify/notify-all-on-loc.js new file mode 100644 index 0000000000..dbc902b6a1 --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/notify/notify-all-on-loc.js @@ -0,0 +1,92 @@ +// |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) 2017 Mozilla Corporation. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.notify +description: > + Test that Atomics.notify notifies all waiters on a location, but does not + notify waiters on other locations. +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 NOTIFY_INDEX = 3; // Accounting for too early timeouts +const NUMAGENT = 3; +const TIMEOUT_AGENT_MESSAGES = 2; // Number of messages for the timeout agent +const BUFFER_SIZE = 4; + +// Long timeout to ensure the agent doesn't timeout before the main agent calls +// `Atomics.notify`. +const TIMEOUT = $262.agent.timeouts.long; + +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, ${TIMEOUT})); + + // If this value is not 1, then the agent timeout before the main agent + // called Atomics.notify. + const result = Atomics.load(i32a, ${NOTIFY_INDEX}) === 1 + ? "timeout after Atomics.notify" + : "timeout before Atomics.notify"; + $262.agent.report("W " + result); + + $262.agent.leaving(); + }); +`); + +const i32a = new Int32Array( + new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * BUFFER_SIZE) +); + +$262.agent.safeBroadcast(i32a); + +// Wait for agents to be running. +$262.agent.waitUntil(i32a, RUNNING, NUMAGENT + 1); + +// Try to yield control to ensure the agent actually started to wait. If we +// don't, we risk sending the notification before agents are sleeping, and we hang. +$262.agent.tryYield(); + +// Notify all waiting on WAIT_INDEX, should be 3 always, they won't time out. +assert.sameValue( + Atomics.notify(i32a, WAIT_INDEX), + NUMAGENT, + 'Atomics.notify(i32a, WAIT_INDEX) returns the value of `NUMAGENT`' +); + +Atomics.store(i32a, NOTIFY_INDEX, 1); + +const reports = []; +for (var i = 0; i < NUMAGENT + TIMEOUT_AGENT_MESSAGES; 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"'); +assert.sameValue(reports[NUMAGENT + 1], "W timeout after Atomics.notify", + 'The value of reports[NUMAGENT + 1] is "W timeout after Atomics.notify"'); + +reportCompare(0, 0); |