wait-index-value-not-equal.js (1936B)
1 // |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 2 // Copyright (C) 2018 Amal Hussein. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-atomics.wait 7 description: > 8 Returns "not-equal" when value of index is not equal 9 info: | 10 Atomics.wait( typedArray, index, value, timeout ) 11 12 14.If v is not equal to w, then 13 a.Perform LeaveCriticalSection(WL). 14 b. Return the String "not-equal". 15 16 includes: [atomicsHelper.js] 17 features: [Atomics, SharedArrayBuffer, TypedArray] 18 ---*/ 19 20 const RUNNING = 1; 21 const TIMEOUT = $262.agent.timeouts.small; 22 23 $262.agent.start(` 24 $262.agent.receiveBroadcast(function(sab) { 25 const i32a = new Int32Array(sab); 26 Atomics.add(i32a, ${RUNNING}, 1); 27 28 $262.agent.report(Atomics.wait(i32a, 0, 44, ${TIMEOUT})); 29 $262.agent.report(Atomics.wait(i32a, 0, 251.4, ${TIMEOUT})); 30 $262.agent.leaving(); 31 }); 32 `); 33 34 const i32a = new Int32Array( 35 new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) 36 ); 37 38 // NB: We don't actually explicitly need to wait for the agent to start in this 39 // test case, we only do it for consistency with other test cases which do 40 // require the main agent to wait and yield control. 41 42 $262.agent.safeBroadcast(i32a); 43 $262.agent.waitUntil(i32a, RUNNING, 1); 44 45 // Try to yield control to ensure the agent actually started to wait. 46 $262.agent.tryYield(); 47 48 assert.sameValue( 49 $262.agent.getReport(), 50 'not-equal', 51 '$262.agent.getReport() returns "not-equal"' 52 ); 53 assert.sameValue( 54 $262.agent.getReport(), 55 'not-equal', 56 '$262.agent.getReport() returns "not-equal"' 57 ); 58 assert.sameValue(Atomics.notify(i32a, 0), 0, 'Atomics.notify(i32a, 0) returns 0'); 59 60 reportCompare(0, 0);