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-rw-r--r--js/src/tests/test262/built-ins/Atomics/notify/notify-two.js72
1 files changed, 72 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/notify/notify-two.js b/js/src/tests/test262/built-ins/Atomics/notify/notify-two.js
new file mode 100644
index 0000000000..69225a2630
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/notify/notify-two.js
@@ -0,0 +1,72 @@
+// |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 two waiters if that's what the count is.
+includes: [atomicsHelper.js]
+features: [Atomics, SharedArrayBuffer, TypedArray]
+---*/
+
+const WAIT_INDEX = 0; // Agents wait here
+const RUNNING = 1; // Accounting of live agents here
+const NOTIFYCOUNT = 2;
+const NUMAGENT = 3;
+const BUFFER_SIZE = 4;
+
+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);
+
+ // Waiters that are not woken will time out eventually.
+ $262.agent.report(Atomics.wait(i32a, ${WAIT_INDEX}, 0, ${TIMEOUT}));
+ $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);
+
+// Try to yield control to ensure the agent actually started to wait.
+$262.agent.tryYield();
+
+// There's a slight risk we'll fail to notify the desired count, if the preceding
+// tryYield() took much longer than anticipated and workers have started timing
+// out.
+assert.sameValue(
+ Atomics.notify(i32a, 0, NOTIFYCOUNT),
+ NOTIFYCOUNT,
+ 'Atomics.notify(i32a, 0, NOTIFYCOUNT) returns the value of `NOTIFYCOUNT`'
+);
+
+// Try to sleep past the timeout.
+$262.agent.trySleep(TIMEOUT);
+
+// Collect and check results
+const reports = [];
+for (var i = 0; i < NUMAGENT; i++) {
+ reports.push($262.agent.getReport());
+}
+reports.sort();
+
+for (var i = 0; i < NOTIFYCOUNT; i++) {
+ assert.sameValue(reports[i], 'ok', 'The value of reports[i] is "ok"');
+}
+for (var i = NOTIFYCOUNT; i < NUMAGENT; i++) {
+ assert.sameValue(reports[i], 'timed-out', 'The value of reports[i] is "timed-out"');
+}
+
+reportCompare(0, 0);