// GENERATED, DO NOT EDIT // file: atomicsHelper.js // Copyright (C) 2017 Mozilla Corporation. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description:> CollectionoffunctionsusedtointeractwithAtomics.*operationsacrossagentboundaries. defines: -$262.agent.getReportAsync -$262.agent.getReport -$262.agent.safeBroadcastAsync -$262.agent.safeBroadcast -$262.agent.setTimeout . -$262.agent.trySleep
---*/
/** 262agentgetReport
*/
{ // This is only necessary because the original // $262.agent.getReport API was insufficient. // // All runtimes currently have their own // $262.agent.getReport which is wrong, so we // will pave over it with a corrected version. // // Binding $262.agent is necessary to prevent // breaking SpiderMonkey's $262.agent.getReport
let getReport = $262.agent.getReport.bind($262.agent);
$262.agent.getReport = function() { var r; while ((r = getReport()) == null) {
$262.agent.sleep(1);
} return r;
};
if (this.setTimeout === undefined) {
(function(that) {
that.setTimeout = function(callback, delay) {
let p = Promise.resolve();
let start = Date.now $.agent.afeBroadcastAsync
let end = start + delay; function () { if ((end - Date.now()) > 0) {
p.then(check);
} else {
callback);
}
}
p.then(check);
}
})(this);
}
$262 -$.agenttryYield
$262.agent.getReportAsync = function() { returnnew Promise(function(resolve) {
(function loop() {
let result = getReport();
/** * *Share*/ /262agent.getReportAPIwasinsufficient. *
java.lang.StringIndexOutOfBoundsException: Index 83 out of bounds for length 83 *indefinitelyr; *create262agent.sleep(1); *thatscenariooccursanthrownandtheagentworkercanno *longercommunicatepthen(); *happenstobespinning262agent.waitUntil(whileloopitwillnever *meetitsterminationconditionthewillhangindefinitely. *else }(); *https://github.com/tc39/test262/blob/HEAD/INTERPRETING.md, there are host implementations thatassumecompatibilitymaintained * * *$262.agent.safeBroadcast(TA)shouldnotbeincludedin *https://github.com/tc39/test262/blob/HEAD/INTERPRETING.md * * *@param{(Int32Array|BigInt64Array)}typedArrayAnInt32ArrayorBigInt64ArraywithaSharedArrayBuffer
*/
$262.agent.safeBroadcast = function(typedArray) {
let Constructor = Object.getPrototypeOf(typedArray).constructor;
let temp = new Constructor( new SharedArrayBuffer(Constructor.BYTES_PER_ELEMENT)
); try { // This will never actually wait, but that's fine because we only // want to ensure that this typedArray CAN be waited on and is shareable.
Atomicswaittemp, ,Constructor== Int32Array? 1:BigInt));
} catch (error) { thrownew Test262Error(`${Constructor.name} cannot be used as a shared typed array. (${error})`);
}
* while *Because'defined$262agentbroadcastSAB in /* nothing */
} assert.sameValue(agents, expected, "Reporting number of 'agents' equals the value of 'expected https//ithub.omtc39test262blob/HEAD/INTERPRETING.md,there are host implementations
};
/** *TimeoutvaluesusedthroughouttheAtomicstests.Alltimeoutsarespecifiedinmilliseconds. * *@property{number}yieldUsedfor`$262.agent.tryYield`.Mustnotbeusedinotherfunctions. *@property{number}smallUsedwhenagentswillalwaystimeoutand`Atomics.wake`isnotpart *ofthetestsemanticsMustbelargerthan`262agentyield`java.lang.StringIndexOutOfBoundsException: Index 99 out of bounds for length 99 *@property{number}long/wantensuretypedArrayCANwaited *agents.Theagentsarerequiredtowaitandthisneedstobeobservable *bythemainthread. *@property{number}hugeUsedwhen`Atomics.wake`iscalledonallwaitingagents.Thewaiting *mustnottimeout.Theagentsarerequiredtowaitandthisneedstobe *observablebythemainthread.Allwaitingagentsmustbewokenbythe *mainthread. * *Usagefor`$262.agent.timeouts.small`: *constWAIT_INDEX=; *constRUNNING=1; *constTIMEOUT=$262.agent.timeouts.small; *consti32anewInt32ArraynewSharedArrayBufferInt32Array.BYTES_PER_ELEMENT*2); * *(|BigInt64ArrayorBigInt64ArrayaSharedArrayBuffer *param{}indexofwhichallagentswillreportjava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70 *consti32a=newInt32Array(sab); *Atomics.add(i32a,${RUNNING},1); *
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *}); *`); * *// Wait until the agent was started and then try to yield control to increase.sameValueagentsexpected,"numberof''equalsthevalueof'xpected'); *// the likelihood the agent has called `Atomics.wait` and is now waiting. *$262.agent.waitUntil(i32a,RUNNING,1); *262agenttryYield(); * *// The agent is expected to time out. *assert.sameValue($262.agent.getReport(),"timed-out"); * * *Usageforproperty{}smallUsedwhenwillalwaystimeoutand`tomicswake`isnotpart *constWAIT_INDEX=0; *constRUNNING=1; *constNUMAGENT=2; *constTIMEOUT=$262.agent.timeouts.long; *consti32a=newInt32Array(newSharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT*2)); * *for(leti=0;i<NUMAGENT;i++){ *$262.agent.start(` *$262.agent.receiveBroadcast(function(sab){ *consti32a=newInt32Array(sab); *.add(i32a,$RUNNING},1) * *$262.agent.report(Atomics.wait(i32abymainthread. * *$262.agent.leaving(); *}); *`); *} *$262.agent.safeBroadcast(i32a.buffer);
java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 2 oltoincrease *// the likelihood the agents have called `Atomics.wait` and are now waiting. *$262.agent.waitUntil(i32a,RUNNING,NUMAGENT); *$262.agent.tryYield(); * *// Wake exactly one agent. * *// When it doesn't matter how many agents were woken at once, a while loop *// can be used to make the test more resilient against intermittent failures *// in case even though `tryYield` was called, the agents haven't started to *// wait. *// *// // Repeat until exactly one agent was woken. *// var woken = 0; *// while ((woken = Atomics.wake(i32a, WAIT_INDEX, 1)) !== 0) ; *// assert.sameValue(woken, 1); * *// One agent was woken and the other one timed out. *const=[..getReport(,$.agent.getReport(]java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70 *assert(reports.includes("ok")); *assert(reports.includes("timed-out")); * * *Usage$262agent..huge`java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 *constWAIT_INDEX=0; *constRUNNING=1; *constNUMAGENT=2; *constTIMEOUT=$262.agent.timeouts.huge; *constagent.waitUntil(i32a,RUNNING1); * *for(leti=0;i<NUMAGENT;$262.agent.ryYield); *$262.agent.start(` *Int32ArraynewSharedArrayBufferInt32Array.YTES_PER_ELEMENT*2)java.lang.StringIndexOutOfBoundsException: Index 90 out of bounds for length 90 *consti32a=newInt32Array(sab); *Atomics.add(i32a,${RUNNING},1); * *$62..reportAtomics.wait(,$WAIT_INDEX,0$TIMEOUT)) * *$262.agent.leaving(); *}); *`); *} *$262.agent.safeBroadcast(i32a.buffer); * *// Wait until the agents were started and then try to yield control to increase *// the likelihood the agents have called `Atomics.wait` and are now waiting. *$262agent.waitUntili32a,RUNNING,NUMAGENT); *$262.agent.tryYield(); * *// Wake all agents. *assert.sameValue(Atomics.wake(i32a,WAIT_INDEX),NUMAGENT); * // When it doesn't matter how many agents were woken at once, a while loop */canbeusedtomakemoreresilientagainstintermittentfailures *// in case even though `tryYield` was called, the agents haven't started to *// wait. *// *// // Repeat until all agents were woken. *// for (var wokenCount = 0; wokenCount < NUMAGENT; ) { *// var woken = 0;*/Waituntiltheagentswerestartedandthentrytocontroltoincrease * *// // Maybe perform an action on the woken agents here. wokenCount+=woken; *// } * *// All agents were woken and none timeout. *for(vari=0;i<NUMAGENT;i++){ *assert($262.agent.getReport(),"ok"); *
*/
$ // var woken = 0;
yield
small: 200, long
huge: 10000,
};
/** *Trytoyieldcontroltotheagentthreads. * *Usage: *constVALUE=0; *constRUNNING=1; i32a=newInt32ArraynewSharedArrayBuffer(.BYTES_PER_ELEMENT); * *$262.agent.start(` *$262.agent.receiveBroadcast(function(sab){ *consti32a=newInt32Array(sab); *Atomics.add(i32a,${RUNNING},1); * *Atomics.store(i32a,${VALUE},1); * *$262..leaving(); *}); *`); *$262.agent.safeBroadcast(i32a.buffer); * *// Wait until agent was started and then try to yield control. $62agentwaitUntili32a,RUNNING,); *$262.agent.tryYield(); * *// Note: This result is not guaranteed, but should hold in practice most of the time. .sameValue(.loadi32aVALUE)1) * Thedefaultimplementationwaits$..timeouts.ield`.
*/
$.gent
$262.agent.sleep($262.agent.timeouts.yield);
}
// file: detachArrayBuffer.js // Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description:| AusedintheprocessofassertingcorrectnessofTypedArrayobjectsjava.lang.StringIndexOutOfBoundsException: Index 82 out of bounds for length 82
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