poolifier - npm Package Compare versions

Comparing version 2.6.14 to 2.6.15

./lib/index.js

@@ -1,1 +0,1 @@
-"use strict";var e=require("node:events"),t=require("node:cluster"),s=require("node:crypto"),r=require("node:perf_hooks"),i=require("node:os"),o=require("node:worker_threads"),a=require("node:async_hooks");function n(e){var t=Object.create(null);return e&&Object.keys(e).forEach((function(s){if("default"!==s){var r=Object.getOwnPropertyDescriptor(e,s);Object.defineProperty(t,s,r.get?r:{enumerable:!0,get:function(){return e[s]}})}})),t.default=e,Object.freeze(t)}var u=n(i);const h=Object.freeze({fixed:"fixed",dynamic:"dynamic"});class k extends e.EventEmitter{}const c=Object.freeze({full:"full",ready:"ready",busy:"busy",error:"error",taskError:"taskError"}),d="default",m=Object.freeze((()=>{})),l={runTime:{median:!1},waitTime:{median:!1},elu:{median:!1}},g={aggregate:!1,average:!1,median:!1},p=e=>{if(Array.isArray(e)&&0===e.length)return 0;if(Array.isArray(e)&&1===e.length)return e[0];const t=e.slice().sort(((e,t)=>e-t));return(t[t.length-1>>1]+t[t.length>>1])/2},w=(e,t=2)=>{const s=Math.pow(10,t);return Math.round(e*s*(1+Number.EPSILON))/s},T=e=>"object"==typeof e&&null!==e&&e?.constructor===Object&&"[object Object]"===Object.prototype.toString.call(e),f=Object.freeze({SOFT:"SOFT",HARD:"HARD"}),y=Object.freeze({ROUND_ROBIN:"ROUND_ROBIN",LEAST_USED:"LEAST_USED",LEAST_BUSY:"LEAST_BUSY",LEAST_ELU:"LEAST_ELU",FAIR_SHARE:"FAIR_SHARE",WEIGHTED_ROUND_ROBIN:"WEIGHTED_ROUND_ROBIN",INTERLEAVED_WEIGHTED_ROUND_ROBIN:"INTERLEAVED_WEIGHTED_ROUND_ROBIN"}),W=Object.freeze({runTime:"runTime",waitTime:"waitTime",elu:"elu"});class S{pool;opts;nextWorkerNodeId=0;strategyPolicy={useDynamicWorker:!1};taskStatisticsRequirements={runTime:g,waitTime:g,elu:g};constructor(e,t=l){this.pool=e,this.opts=t,this.choose=this.choose.bind(this)}setTaskStatisticsRequirements(e){this.taskStatisticsRequirements.runTime.average&&!0===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!1,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.runTime.median&&!1===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!0,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.waitTime.average&&!0===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!1,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.waitTime.median&&!1===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!0,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.elu.average&&!0===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!1,this.taskStatisticsRequirements.elu.median=e.elu.median),this.taskStatisticsRequirements.elu.median&&!1===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!0,this.taskStatisticsRequirements.elu.median=e.elu.median)}setOptions(e){this.opts=e??l,this.setTaskStatisticsRequirements(this.opts)}getWorkerTaskRunTime(e){return this.taskStatisticsRequirements.runTime.median?this.pool.workerNodes[e].usage.runTime?.median??0:this.pool.workerNodes[e].usage.runTime?.average??0}getWorkerTaskWaitTime(e){return this.taskStatisticsRequirements.waitTime.median?this.pool.workerNodes[e].usage.waitTime?.median??0:this.pool.workerNodes[e].usage.waitTime?.average??0}getWorkerTaskElu(e){return this.taskStatisticsRequirements.elu.median?this.pool.workerNodes[e].usage.elu.active?.median??0:this.pool.workerNodes[e].usage.elu.active?.average??0}computeDefaultWorkerWeight(){let e=0;for(const t of i.cpus()){const s=t.speed.toString().length-1;e+=1/(t.speed/Math.pow(10,s))*Math.pow(10,s)}return Math.round(e/i.cpus().length)}}class x extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:g,elu:{aggregate:!0,average:!0,median:!1}};workersVirtualTaskEndTimestamp=[];constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.workersVirtualTaskEndTimestamp=[],!0}update(e){return this.computeWorkerVirtualTaskEndTimestamp(e),!0}choose(){let e=1/0;for(const[t]of this.pool.workerNodes.entries()){null==this.workersVirtualTaskEndTimestamp[t]&&this.computeWorkerVirtualTaskEndTimestamp(t);const s=this.workersVirtualTaskEndTimestamp[t];s<e&&(e=s,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(e){return this.workersVirtualTaskEndTimestamp.splice(e,1),!0}computeWorkerVirtualTaskEndTimestamp(e){this.workersVirtualTaskEndTimestamp[e]=this.getWorkerVirtualTaskEndTimestamp(e,this.getWorkerVirtualTaskStartTimestamp(e))}getWorkerVirtualTaskEndTimestamp(e,t){return t+(this.opts.measurement===W.elu?this.getWorkerTaskElu(e):this.getWorkerTaskRunTime(e))}getWorkerVirtualTaskStartTimestamp(e){return Math.max(performance.now(),this.workersVirtualTaskEndTimestamp[e]??-1/0)}}class N extends S{strategyPolicy={useDynamicWorker:!0};roundId=0;roundWeights;defaultWorkerWeight;constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight(),this.roundWeights=this.getRoundWeights()}reset(){return this.nextWorkerNodeId=0,this.roundId=0,!0}update(){return!0}choose(){let e,t;for(let s=this.roundId;s<this.roundWeights.length;s++)for(let r=this.nextWorkerNodeId;r<this.pool.workerNodes.length;r++){if((this.opts.weights?.[r]??this.defaultWorkerWeight)>=this.roundWeights[s]){e=s,t=r;break}}this.roundId=e??0,this.nextWorkerNodeId=t??0;const s=this.nextWorkerNodeId;return this.nextWorkerNodeId===this.pool.workerNodes.length-1?(this.nextWorkerNodeId=0,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1):this.nextWorkerNodeId=this.nextWorkerNodeId+1,s}remove(e){return this.nextWorkerNodeId===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeId=0:this.nextWorkerNodeId>this.pool.workerNodes.length-1&&(this.nextWorkerNodeId=this.pool.workerNodes.length-1,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1)),!0}setOptions(e){super.setOptions(e),this.roundWeights=this.getRoundWeights()}getRoundWeights(){return null==this.opts.weights?[this.defaultWorkerWeight]:[...new Set(Object.values(this.opts.weights).slice().sort(((e,t)=>e-t)))]}}class v extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!1,median:!1},waitTime:{aggregate:!0,average:!1,median:!1},elu:g};constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){let e=1/0;for(const[t,s]of this.pool.workerNodes.entries()){const r=(s.usage.runTime?.aggregate??0)+(s.usage.waitTime?.aggregate??0);if(0===r){this.nextWorkerNodeId=t;break}r<e&&(e=r,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(){return!0}}class I extends S{constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){let e=1/0;for(const[t,s]of this.pool.workerNodes.entries()){const r=s.usage.tasks,i=r.executed+r.executing+r.queued;if(0===i){this.nextWorkerNodeId=t;break}i<e&&(e=i,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(){return!0}}class E extends S{taskStatisticsRequirements={runTime:g,waitTime:g,elu:{aggregate:!0,average:!1,median:!1}};constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){let e=1/0;for(const[t,s]of this.pool.workerNodes.entries()){const r=s.usage,i=r.elu?.active?.aggregate??0;if(0===i){this.nextWorkerNodeId=t;break}i<e&&(e=i,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(){return!0}}class R extends S{strategyPolicy={useDynamicWorker:!0};constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.nextWorkerNodeId=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeId;return this.nextWorkerNodeId=this.nextWorkerNodeId===this.pool.workerNodes.length-1?0:this.nextWorkerNodeId+1,e}remove(e){return this.nextWorkerNodeId===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeId=0:this.nextWorkerNodeId>this.pool.workerNodes.length-1&&(this.nextWorkerNodeId=this.pool.workerNodes.length-1)),!0}}class b extends S{strategyPolicy={useDynamicWorker:!0};taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:g,elu:g};defaultWorkerWeight;workerVirtualTaskRunTime=0;constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight()}reset(){return this.nextWorkerNodeId=0,this.workerVirtualTaskRunTime=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeId,t=this.workerVirtualTaskRunTime;return t<(this.opts.weights?.[e]??this.defaultWorkerWeight)?this.workerVirtualTaskRunTime=t+this.getWorkerTaskRunTime(e):(this.nextWorkerNodeId=this.nextWorkerNodeId===this.pool.workerNodes.length-1?0:this.nextWorkerNodeId+1,this.workerVirtualTaskRunTime=0),e}remove(e){return this.nextWorkerNodeId===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeId=0:this.nextWorkerNodeId>this.pool.workerNodes.length-1&&(this.nextWorkerNodeId=this.pool.workerNodes.length-1),this.workerVirtualTaskRunTime=0),!0}}class C{workerChoiceStrategy;workerChoiceStrategies;constructor(e,t=y.ROUND_ROBIN,s=l){this.workerChoiceStrategy=t,this.execute=this.execute.bind(this),this.workerChoiceStrategies=new Map([[y.ROUND_ROBIN,new(R.bind(this))(e,s)],[y.LEAST_USED,new(I.bind(this))(e,s)],[y.LEAST_BUSY,new(v.bind(this))(e,s)],[y.LEAST_ELU,new(E.bind(this))(e,s)],[y.FAIR_SHARE,new(x.bind(this))(e,s)],[y.WEIGHTED_ROUND_ROBIN,new(b.bind(this))(e,s)],[y.INTERLEAVED_WEIGHTED_ROUND_ROBIN,new(N.bind(this))(e,s)]])}getStrategyPolicy(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).strategyPolicy}getTaskStatisticsRequirements(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).taskStatisticsRequirements}setWorkerChoiceStrategy(e){this.workerChoiceStrategy!==e&&(this.workerChoiceStrategy=e),this.workerChoiceStrategies.get(this.workerChoiceStrategy)?.reset()}update(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).update(e)}execute(){const e=this.workerChoiceStrategies.get(this.workerChoiceStrategy).choose();if(null==e)throw new Error("Worker node key chosen is null or undefined");return e}remove(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).remove(e)}setOptions(e){for(const t of this.workerChoiceStrategies.values())t.setOptions(e)}}class O extends Array{size;constructor(e=1024,...t){super(),this.checkSize(e),this.size=e,arguments.length>1&&this.push(...t)}push(...e){const t=super.push(...e);return t>this.size&&super.splice(0,t-this.size),this.length}unshift(...e){return super.unshift(...e)>this.size&&super.splice(this.size,e.length),this.length}concat(...e){const t=super.concat(e);return t.size=this.size,t.length>t.size&&t.splice(0,t.length-t.size),t}splice(e,t,...s){let r;return arguments.length>=3&&void 0!==t?(r=super.splice(e,t),this.push(...s)):r=2===arguments.length?super.splice(e,t):super.splice(e),r}resize(e){if(this.checkSize(e),0===e)this.length=0;else if(e<this.size)for(let t=e;t<this.size;t++)super.pop();this.size=e}empty(){return 0===this.length}full(){return this.length===this.size}checkSize(e){if(!Number.isSafeInteger(e))throw new TypeError(`Invalid circular array size: ${e} is not a safe integer`);if(e<0)throw new RangeError(`Invalid circular array size: ${e} < 0`)}}class z{items;offset;size;maxSize;constructor(){this.clear()}enqueue(e){return this.items.push(e),++this.size,this.size>this.maxSize&&(this.maxSize=this.size),this.size}dequeue(){if(this.size<=0)return;const e=this.items[this.offset];return 2*++this.offset>=this.items.length&&(this.items=this.items.slice(this.offset),this.offset=0),--this.size,e}peek(){if(!(this.size<=0))return this.items[this.offset]}clear(){this.items=[],this.offset=0,this.size=0,this.maxSize=0}[Symbol.iterator](){const e=this.items;let t=this.offset;return{next:()=>{if(t>=e.length)return{value:void 0,done:!0};const s=e[t];return++t,{value:s,done:!1}}}}}const q=Object.freeze({cluster:"cluster",thread:"thread"});class M{worker;info;usage;tasksUsage;tasksQueue;constructor(e,t){this.worker=e,this.info=this.initWorkerInfo(e,t),this.usage=this.initWorkerUsage(),this.tasksUsage=new Map,this.tasksQueue=new z}tasksQueueSize(){return this.tasksQueue.size}tasksQueueMaxSize(){return this.tasksQueue.maxSize}enqueueTask(e){return this.tasksQueue.enqueue(e)}dequeueTask(){return this.tasksQueue.dequeue()}clearTasksQueue(){this.tasksQueue.clear()}resetUsage(){this.usage=this.initWorkerUsage(),this.tasksUsage.clear()}getTaskWorkerUsage(e){return this.tasksUsage.has(e)||this.tasksUsage.set(e,this.initTaskWorkerUsage(e)),this.tasksUsage.get(e)}initWorkerInfo(e,t){return{id:this.getWorkerId(e,t),type:t,dynamic:!1,ready:!1}}initWorkerUsage(){const e=()=>this.tasksQueueSize(),t=()=>this.tasksQueueMaxSize();return{tasks:{executed:0,executing:0,get queued(){return e()},get maxQueued(){return t()},failed:0},runTime:{history:new O},waitTime:{history:new O},elu:{idle:{history:new O},active:{history:new O}}}}initTaskWorkerUsage(e){const t=()=>{let t=0;for(const s of this.tasksQueue)s.name===e&&++t;return t};return{tasks:{executed:0,executing:0,get queued(){return t()},failed:0},runTime:{history:new O},waitTime:{history:new O},elu:{idle:{history:new O},active:{history:new O}}}}getWorkerId(e,t){return t===q.thread?e.threadId:t===q.cluster?e.id:void 0}}class P{numberOfWorkers;filePath;opts;workerNodes=[];emitter;promiseResponseMap=new Map;workerChoiceStrategyContext;startTimestamp;constructor(e,t,s){if(this.numberOfWorkers=e,this.filePath=t,this.opts=s,!this.isMain())throw new Error("Cannot start a pool from a worker!");for(this.checkNumberOfWorkers(this.numberOfWorkers),this.checkFilePath(this.filePath),this.checkPoolOptions(this.opts),this.chooseWorkerNode=this.chooseWorkerNode.bind(this),this.executeTask=this.executeTask.bind(this),this.enqueueTask=this.enqueueTask.bind(this),this.checkAndEmitEvents=this.checkAndEmitEvents.bind(this),!0===this.opts.enableEvents&&(this.emitter=new k),this.workerChoiceStrategyContext=new C(this,this.opts.workerChoiceStrategy,this.opts.workerChoiceStrategyOptions),this.setupHook();this.workerNodes.length<this.numberOfWorkers;)this.createAndSetupWorker();this.startTimestamp=r.performance.now()}checkFilePath(e){if(null==e||"string"==typeof e&&0===e.trim().length)throw new Error("Please specify a file with a worker implementation")}checkNumberOfWorkers(e){if(null==e)throw new Error("Cannot instantiate a pool without specifying the number of workers");if(!Number.isSafeInteger(e))throw new TypeError("Cannot instantiate a pool with a non safe integer number of workers");if(e<0)throw new RangeError("Cannot instantiate a pool with a negative number of workers");if(this.type===h.fixed&&0===e)throw new RangeError("Cannot instantiate a fixed pool with zero worker")}checkDynamicPoolSize(e,t){if(this.type===h.dynamic){if(e>t)throw new RangeError("Cannot instantiate a dynamic pool with a maximum pool size inferior to the minimum pool size");if(0===e&&0===t)throw new RangeError("Cannot instantiate a dynamic pool with a minimum pool size and a maximum pool size equal to zero");if(e===t)throw new RangeError("Cannot instantiate a dynamic pool with a minimum pool size equal to the maximum pool size. Use a fixed pool instead")}}checkPoolOptions(e){if(!T(e))throw new TypeError("Invalid pool options: must be a plain object");this.opts.workerChoiceStrategy=e.workerChoiceStrategy??y.ROUND_ROBIN,this.checkValidWorkerChoiceStrategy(this.opts.workerChoiceStrategy),this.opts.workerChoiceStrategyOptions=e.workerChoiceStrategyOptions??l,this.checkValidWorkerChoiceStrategyOptions(this.opts.workerChoiceStrategyOptions),this.opts.restartWorkerOnError=e.restartWorkerOnError??!0,this.opts.enableEvents=e.enableEvents??!0,this.opts.enableTasksQueue=e.enableTasksQueue??!1,this.opts.enableTasksQueue&&(this.checkValidTasksQueueOptions(e.tasksQueueOptions),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e.tasksQueueOptions))}checkValidWorkerChoiceStrategy(e){if(!Object.values(y).includes(e))throw new Error(`Invalid worker choice strategy '${e}'`)}checkValidWorkerChoiceStrategyOptions(e){if(!T(e))throw new TypeError("Invalid worker choice strategy options: must be a plain object");if(null!=e.weights&&Object.keys(e.weights).length!==this.maxSize)throw new Error("Invalid worker choice strategy options: must have a weight for each worker node");if(null!=e.measurement&&!Object.values(W).includes(e.measurement))throw new Error(`Invalid worker choice strategy options: invalid measurement '${e.measurement}'`)}checkValidTasksQueueOptions(e){if(null!=e&&!T(e))throw new TypeError("Invalid tasks queue options: must be a plain object");if(null!=e?.concurrency&&!Number.isSafeInteger(e.concurrency))throw new TypeError("Invalid worker tasks concurrency: must be an integer");if(null!=e?.concurrency&&e.concurrency<=0)throw new Error(`Invalid worker tasks concurrency '${e.concurrency}'`)}get info(){return{version:"2.6.14",type:this.type,worker:this.worker,ready:this.ready,strategy:this.opts.workerChoiceStrategy,minSize:this.minSize,maxSize:this.maxSize,...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{utilization:w(this.utilization)},workerNodes:this.workerNodes.length,idleWorkerNodes:this.workerNodes.reduce(((e,t)=>0===t.usage.tasks.executing?e+1:e),0),busyWorkerNodes:this.workerNodes.reduce(((e,t)=>t.usage.tasks.executing>0?e+1:e),0),executedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executed),0),executingTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executing),0),queuedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.queued),0),maxQueuedTasks:this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.maxQueued??0)),0),failedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.failed),0),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&{runTime:{minimum:w(Math.min(...this.workerNodes.map((e=>e.usage.runTime?.minimum??1/0)))),maximum:w(Math.max(...this.workerNodes.map((e=>e.usage.runTime?.maximum??-1/0)))),average:w(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&{median:w(p(this.workerNodes.map((e=>e.usage.runTime?.median??0))))}}},...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{waitTime:{minimum:w(Math.min(...this.workerNodes.map((e=>e.usage.waitTime?.minimum??1/0)))),maximum:w(Math.max(...this.workerNodes.map((e=>e.usage.waitTime?.maximum??-1/0)))),average:w(this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&{median:w(p(this.workerNodes.map((e=>e.usage.waitTime?.median??0))))}}}}}get starting(){return this.workerNodes.length<this.minSize||this.workerNodes.length>=this.minSize&&this.workerNodes.some((e=>!e.info.ready))}get ready(){return this.workerNodes.length>=this.minSize&&this.workerNodes.every((e=>e.info.ready))}get utilization(){const e=(r.performance.now()-this.startTimestamp)*this.maxSize;return(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)+this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0))/e}getWorkerById(e){return this.workerNodes.find((t=>t.info.id===e))?.worker}checkMessageWorkerId(e){if(null!=e.workerId&&null==this.getWorkerById(e.workerId))throw new Error(`Worker message received from unknown worker '${e.workerId}'`)}getWorkerNodeKey(e){return this.workerNodes.findIndex((t=>t.worker===e))}setWorkerChoiceStrategy(e,t){this.checkValidWorkerChoiceStrategy(e),this.opts.workerChoiceStrategy=e,this.workerChoiceStrategyContext.setWorkerChoiceStrategy(this.opts.workerChoiceStrategy),null!=t&&this.setWorkerChoiceStrategyOptions(t);for(const e of this.workerNodes)e.resetUsage(),this.setWorkerStatistics(e.worker)}setWorkerChoiceStrategyOptions(e){this.checkValidWorkerChoiceStrategyOptions(e),this.opts.workerChoiceStrategyOptions=e,this.workerChoiceStrategyContext.setOptions(this.opts.workerChoiceStrategyOptions)}enableTasksQueue(e,t){!0!==this.opts.enableTasksQueue||e||this.flushTasksQueues(),this.opts.enableTasksQueue=e,this.setTasksQueueOptions(t)}setTasksQueueOptions(e){!0===this.opts.enableTasksQueue?(this.checkValidTasksQueueOptions(e),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e)):null!=this.opts.tasksQueueOptions&&delete this.opts.tasksQueueOptions}buildTasksQueueOptions(e){return{concurrency:e?.concurrency??1}}get full(){return this.workerNodes.length>=this.maxSize}internalBusy(){return-1===this.workerNodes.findIndex((e=>0===e.usage.tasks.executing))}async execute(e,t){const i=r.performance.now(),o=this.chooseWorkerNode(),a={name:t??d,data:e??{},timestamp:i,workerId:this.getWorkerInfo(o).id,id:s.randomUUID()},n=new Promise(((e,t)=>{this.promiseResponseMap.set(a.id,{resolve:e,reject:t,worker:this.workerNodes[o].worker})}));return!0===this.opts.enableTasksQueue&&(this.busy||this.workerNodes[o].usage.tasks.executing>=this.opts.tasksQueueOptions.concurrency)?this.enqueueTask(o,a):this.executeTask(o,a),this.checkAndEmitEvents(),n}async destroy(){await Promise.all(this.workerNodes.map((async(e,t)=>{this.flushTasksQueue(t);const s=new Promise((t=>{e.worker.on("exit",(()=>{t()}))}));await this.destroyWorker(e.worker),await s})))}setupHook(){}beforeTaskExecutionHook(e,t){const s=this.workerNodes[e].usage;++s.tasks.executing,this.updateWaitTimeWorkerUsage(s,t);const r=this.workerNodes[e].getTaskWorkerUsage(t.name);++r.tasks.executing,this.updateWaitTimeWorkerUsage(r,t)}afterTaskExecutionHook(e,t){const s=this.getWorkerNodeKey(e),r=this.workerNodes[s].usage;this.updateTaskStatisticsWorkerUsage(r,t),this.updateRunTimeWorkerUsage(r,t),this.updateEluWorkerUsage(r,t);const i=this.workerNodes[s].getTaskWorkerUsage(t.taskPerformance?.name??d);this.updateTaskStatisticsWorkerUsage(i,t),this.updateRunTimeWorkerUsage(i,t),this.updateEluWorkerUsage(i,t)}updateTaskStatisticsWorkerUsage(e,t){const s=e.tasks;--s.executing,null==t.taskError?++s.executed:++s.failed}updateRunTimeWorkerUsage(e,t){if(this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate){const s=t.taskPerformance?.runTime??0;e.runTime.aggregate=(e.runTime.aggregate??0)+s,e.runTime.minimum=Math.min(s,e.runTime?.minimum??1/0),e.runTime.maximum=Math.max(s,e.runTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.average&&0!==e.tasks.executed&&(e.runTime.average=e.runTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&null!=t.taskPerformance?.runTime&&(e.runTime.history.push(t.taskPerformance.runTime),e.runTime.median=p(e.runTime.history))}}updateWaitTimeWorkerUsage(e,t){const s=r.performance.now(),i=s-(t.timestamp??s);this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&(e.waitTime.aggregate=(e.waitTime?.aggregate??0)+i,e.waitTime.minimum=Math.min(i,e.waitTime?.minimum??1/0),e.waitTime.maximum=Math.max(i,e.waitTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.average&&0!==e.tasks.executed&&(e.waitTime.average=e.waitTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&(e.waitTime.history.push(i),e.waitTime.median=p(e.waitTime.history)))}updateEluWorkerUsage(e,t){this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate&&null!=t.taskPerformance?.elu&&(e.elu.idle.aggregate=(e.elu.idle?.aggregate??0)+t.taskPerformance.elu.idle,e.elu.active.aggregate=(e.elu.active?.aggregate??0)+t.taskPerformance.elu.active,null!=e.elu.utilization?e.elu.utilization=(e.elu.utilization+t.taskPerformance.elu.utilization)/2:e.elu.utilization=t.taskPerformance.elu.utilization,e.elu.idle.minimum=Math.min(t.taskPerformance.elu.idle,e.elu.idle?.minimum??1/0),e.elu.idle.maximum=Math.max(t.taskPerformance.elu.idle,e.elu.idle?.maximum??-1/0),e.elu.active.minimum=Math.min(t.taskPerformance.elu.active,e.elu.active?.minimum??1/0),e.elu.active.maximum=Math.max(t.taskPerformance.elu.active,e.elu.active?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.average&&0!==e.tasks.executed&&(e.elu.idle.average=e.elu.idle.aggregate/e.tasks.executed,e.elu.active.average=e.elu.active.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.median&&(e.elu.idle.history.push(t.taskPerformance.elu.idle),e.elu.active.history.push(t.taskPerformance.elu.active),e.elu.idle.median=p(e.elu.idle.history),e.elu.active.median=p(e.elu.active.history)))}chooseWorkerNode(){if(this.shallCreateDynamicWorker()){const e=this.createAndSetupDynamicWorker();if(this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker)return this.getWorkerNodeKey(e)}return this.workerChoiceStrategyContext.execute()}shallCreateDynamicWorker(){return this.type===h.dynamic&&!this.full&&this.internalBusy()}registerWorkerMessageListener(e,t){e.on("message",t)}afterWorkerSetup(e){this.registerWorkerMessageListener(e,this.workerListener()),this.sendToWorker(e,{ready:!1,workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id}),this.setWorkerStatistics(e)}createAndSetupWorker(){const e=this.createWorker();return e.on("message",this.opts.messageHandler??m),e.on("error",this.opts.errorHandler??m),e.on("error",(t=>{null!=this.emitter&&this.emitter.emit(c.error,t),!0===this.opts.enableTasksQueue&&this.redistributeQueuedTasks(e),!0!==this.opts.restartWorkerOnError||this.starting||(this.getWorkerInfo(this.getWorkerNodeKey(e)).dynamic?this.createAndSetupDynamicWorker():this.createAndSetupWorker())})),e.on("online",this.opts.onlineHandler??m),e.on("exit",this.opts.exitHandler??m),e.once("exit",(()=>{this.removeWorkerNode(e)})),this.pushWorkerNode(e),this.afterWorkerSetup(e),e}redistributeQueuedTasks(e){const t=this.getWorkerNodeKey(e);for(;this.tasksQueueSize(t)>0;){let e=t,s=1/0;for(const[r,i]of this.workerNodes.entries()){if(r!==t&&0===i.usage.tasks.queued){e=r;break}r!==t&&i.usage.tasks.queued<s&&(s=i.usage.tasks.queued,e=r)}this.enqueueTask(e,this.dequeueTask(t))}}createAndSetupDynamicWorker(){const e=this.createAndSetupWorker();this.registerWorkerMessageListener(e,(t=>{const s=this.getWorkerNodeKey(e);var r;r=f.HARD,(t.kill===r||null!=t.kill&&(!1===this.opts.enableTasksQueue&&0===this.workerNodes[s].usage.tasks.executing||!0===this.opts.enableTasksQueue&&0===this.workerNodes[s].usage.tasks.executing&&0===this.tasksQueueSize(s)))&&this.destroyWorker(e)}));const t=this.getWorkerInfo(this.getWorkerNodeKey(e));return t.dynamic=!0,this.sendToWorker(e,{checkAlive:!0,workerId:t.id}),e}workerListener(){return e=>{this.checkMessageWorkerId(e),null!=e.ready&&null!=e.workerId?this.handleWorkerReadyMessage(e):null!=e.id&&this.handleTaskExecutionResponse(e)}}handleWorkerReadyMessage(e){const t=this.getWorkerById(e.workerId);this.getWorkerInfo(this.getWorkerNodeKey(t)).ready=e.ready,null!=this.emitter&&this.ready&&this.emitter.emit(c.ready,this.info)}handleTaskExecutionResponse(e){const t=this.promiseResponseMap.get(e.id);if(null!=t){null!=e.taskError?(null!=this.emitter&&this.emitter.emit(c.taskError,e.taskError),t.reject(e.taskError.message)):t.resolve(e.data),this.afterTaskExecutionHook(t.worker,e),this.promiseResponseMap.delete(e.id);const s=this.getWorkerNodeKey(t.worker);!0===this.opts.enableTasksQueue&&this.tasksQueueSize(s)>0&&this.executeTask(s,this.dequeueTask(s)),this.workerChoiceStrategyContext.update(s)}}checkAndEmitEvents(){null!=this.emitter&&(this.busy&&this.emitter.emit(c.busy,this.info),this.type===h.dynamic&&this.full&&this.emitter.emit(c.full,this.info))}getWorkerInfo(e){return this.workerNodes[e].info}pushWorkerNode(e){return this.workerNodes.push(new M(e,this.worker))}removeWorkerNode(e){const t=this.getWorkerNodeKey(e);-1!==t&&(this.workerNodes.splice(t,1),this.workerChoiceStrategyContext.remove(t))}executeTask(e,t){this.beforeTaskExecutionHook(e,t),this.sendToWorker(this.workerNodes[e].worker,t)}enqueueTask(e,t){return this.workerNodes[e].enqueueTask(t)}dequeueTask(e){return this.workerNodes[e].dequeueTask()}tasksQueueSize(e){return this.workerNodes[e].tasksQueueSize()}flushTasksQueue(e){for(;this.tasksQueueSize(e)>0;)this.executeTask(e,this.dequeueTask(e));this.workerNodes[e].clearTasksQueue()}flushTasksQueues(){for(const[e]of this.workerNodes.entries())this.flushTasksQueue(e)}setWorkerStatistics(e){this.sendToWorker(e,{statistics:{runTime:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate,elu:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate},workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id})}}class A extends P{opts;constructor(e,t,s={}){super(e,t,s),this.opts=s}setupHook(){t.setupPrimary({...this.opts.settings,exec:this.filePath})}isMain(){return t.isPrimary}destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.id}),e.on("disconnect",(()=>{e.kill()})),e.disconnect()}sendToWorker(e,t){e.send(t)}createWorker(){return t.fork(this.opts.env)}get type(){return h.fixed}get worker(){return q.cluster}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}class Q extends P{opts;constructor(e,t,s={}){super(e,t,s),this.opts=s}isMain(){return o.isMainThread}async destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.threadId}),await e.terminate()}sendToWorker(e,t){e.postMessage(t)}createWorker(){return new o.Worker(this.filePath,{env:o.SHARE_ENV,...this.opts.workerOptions})}get type(){return h.fixed}get worker(){return q.thread}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}const U=6e4,D=f.SOFT;class F extends a.AsyncResource{isMain;mainWorker;opts;taskFunctions;lastTaskTimestamp;statistics;aliveInterval;constructor(e,t,s,r,i={killBehavior:D,maxInactiveTime:U}){super(e),this.isMain=t,this.mainWorker=r,this.opts=i,this.checkWorkerOptions(this.opts),this.checkTaskFunctions(s),this.isMain||this.mainWorker?.on("message",this.messageListener.bind(this))}checkWorkerOptions(e){this.opts.killBehavior=e.killBehavior??D,this.opts.maxInactiveTime=e.maxInactiveTime??U,delete this.opts.async}checkTaskFunctions(e){if(null==e)throw new Error("taskFunctions parameter is mandatory");if(this.taskFunctions=new Map,"function"==typeof e)this.taskFunctions.set(d,e.bind(this));else{if(!T(e))throw new TypeError("taskFunctions parameter is not a function or a plain object");{let t=!0;for(const[s,r]of Object.entries(e)){if("string"!=typeof s)throw new TypeError("A taskFunctions parameter object key is not a string");if("function"!=typeof r)throw new TypeError("A taskFunctions parameter object value is not a function");this.taskFunctions.set(s,r.bind(this)),t&&(this.taskFunctions.set(d,r.bind(this)),t=!1)}if(t)throw new Error("taskFunctions parameter object is empty")}}}hasTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");return this.taskFunctions.has(e)}addTaskFunction(e,t){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===d)throw new Error("Cannot add a task function with the default reserved name");if("function"!=typeof t)throw new TypeError("fn parameter is not a function");try{return this.taskFunctions.get(e)===this.taskFunctions.get(d)&&this.taskFunctions.set(d,t.bind(this)),this.taskFunctions.set(e,t.bind(this)),!0}catch{return!1}}removeTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===d)throw new Error("Cannot remove the task function with the default reserved name");if(this.taskFunctions.get(e)===this.taskFunctions.get(d))throw new Error("Cannot remove the task function used as the default task function");return this.taskFunctions.delete(e)}setDefaultTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===d)throw new Error("Cannot set the default task function reserved name as the default task function");if(!this.taskFunctions.has(e))throw new Error("Cannot set the default task function to a non-existing task function");try{return this.taskFunctions.set(d,this.taskFunctions.get(e)?.bind(this)),!0}catch{return!1}}messageListener(e){e.workerId===this.id&&(null!=e.ready?this.workerReady():null!=e.statistics?this.statistics=e.statistics:null!=e.checkAlive?e.checkAlive?this.startCheckAlive():this.stopCheckAlive():null!=e.id&&null!=e.data?this.run(e):!0===e.kill&&(this.stopCheckAlive(),this.emitDestroy()))}workerReady(){!this.isMain&&this.sendToMainWorker({ready:!0,workerId:this.id})}startCheckAlive(){this.lastTaskTimestamp=r.performance.now(),this.aliveInterval=setInterval(this.checkAlive.bind(this),(this.opts.maxInactiveTime??U)/2),this.checkAlive.bind(this)()}stopCheckAlive(){null!=this.aliveInterval&&clearInterval(this.aliveInterval)}checkAlive(){r.performance.now()-this.lastTaskTimestamp>(this.opts.maxInactiveTime??U)&&this.sendToMainWorker({kill:this.opts.killBehavior,workerId:this.id})}getMainWorker(){if(null==this.mainWorker)throw new Error("Main worker not set");return this.mainWorker}handleError(e){return e instanceof Error?e.message:e}run(e){const t=this.getTaskFunction(e.name);(e=>"function"==typeof e&&"AsyncFunction"===e.constructor.name)(t)?this.runInAsyncScope(this.runAsync.bind(this),this,t,e):this.runInAsyncScope(this.runSync.bind(this),this,t,e)}runSync(e,t){try{let s=this.beginTaskPerformance(t.name);const r=e(t.data);s=this.endTaskPerformance(s),this.sendToMainWorker({data:r,taskPerformance:s,workerId:this.id,id:t.id})}catch(e){const s=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??d,message:s,data:t.data},workerId:this.id,id:t.id})}finally{this.isMain||null==this.aliveInterval||(this.lastTaskTimestamp=r.performance.now())}}runAsync(e,t){let s=this.beginTaskPerformance(t.name);e(t.data).then((e=>(s=this.endTaskPerformance(s),this.sendToMainWorker({data:e,taskPerformance:s,workerId:this.id,id:t.id}),null))).catch((e=>{const s=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??d,message:s,data:t.data},workerId:this.id,id:t.id})})).finally((()=>{this.isMain||null==this.aliveInterval||(this.lastTaskTimestamp=r.performance.now())})).catch(m)}getTaskFunction(e){e=e??d;const t=this.taskFunctions.get(e);if(null==t)throw new Error(`Task function '${e}' not found`);return t}beginTaskPerformance(e){return this.checkStatistics(),{name:e??d,timestamp:r.performance.now(),...this.statistics.elu&&{elu:r.performance.eventLoopUtilization()}}}endTaskPerformance(e){return this.checkStatistics(),{...e,...this.statistics.runTime&&{runTime:r.performance.now()-e.timestamp},...this.statistics.elu&&{elu:r.performance.eventLoopUtilization(e.elu)}}}checkStatistics(){if(null==this.statistics)throw new Error("Performance statistics computation requirements not set")}}exports.ClusterWorker=class extends F{constructor(e,s={}){super("worker-cluster-pool:poolifier",t.isPrimary,e,t.worker,s)}get id(){return this.getMainWorker().id}sendToMainWorker(e){this.getMainWorker().send(e)}},exports.DynamicClusterPool=class extends A{max;constructor(e,t,s,r={}){super(e,s,r),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return h.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.DynamicThreadPool=class extends Q{max;constructor(e,t,s,r={}){super(e,s,r),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return h.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.FixedClusterPool=A,exports.FixedThreadPool=Q,exports.KillBehaviors=f,exports.Measurements=W,exports.PoolEvents=c,exports.PoolTypes=h,exports.ThreadWorker=class extends F{constructor(e,t={}){super("worker-thread-pool:poolifier",o.isMainThread,e,o.parentPort,t)}get id(){return o.threadId}sendToMainWorker(e){this.getMainWorker().postMessage(e)}handleError(e){return e}},exports.WorkerChoiceStrategies=y,exports.WorkerTypes=q,exports.availableParallelism=()=>{let e=1;try{e=u.availableParallelism()}catch{const t=u.cpus();Array.isArray(t)&&t.length>0&&(e=t.length)}return e};
+"use strict";var e=require("node:events"),t=require("node:cluster"),r=require("node:crypto"),s=require("node:perf_hooks"),i=require("node:fs"),o=require("node:os"),a=require("node:worker_threads"),n=require("node:async_hooks");function u(e){var t=Object.create(null);return e&&Object.keys(e).forEach((function(r){if("default"!==r){var s=Object.getOwnPropertyDescriptor(e,r);Object.defineProperty(t,r,s.get?s:{enumerable:!0,get:function(){return e[r]}})}})),t.default=e,Object.freeze(t)}var h=u(o);const k=Object.freeze({fixed:"fixed",dynamic:"dynamic"});class c extends e.EventEmitter{}const d=Object.freeze({full:"full",ready:"ready",busy:"busy",error:"error",taskError:"taskError"}),m="default",l=Object.freeze((()=>{})),g={runTime:{median:!1},waitTime:{median:!1},elu:{median:!1}},p={aggregate:!1,average:!1,median:!1},w=e=>{if(Array.isArray(e)&&0===e.length)return 0;if(Array.isArray(e)&&1===e.length)return e[0];const t=e.slice().sort(((e,t)=>e-t));return(t[t.length-1>>1]+t[t.length>>1])/2},y=(e,t=2)=>{const r=Math.pow(10,t);return Math.round(e*r*(1+Number.EPSILON))/r},T=e=>"object"==typeof e&&null!==e&&e?.constructor===Object&&"[object Object]"===Object.prototype.toString.call(e),f=Object.freeze({SOFT:"SOFT",HARD:"HARD"}),W=Object.freeze({ROUND_ROBIN:"ROUND_ROBIN",LEAST_USED:"LEAST_USED",LEAST_BUSY:"LEAST_BUSY",LEAST_ELU:"LEAST_ELU",FAIR_SHARE:"FAIR_SHARE",WEIGHTED_ROUND_ROBIN:"WEIGHTED_ROUND_ROBIN",INTERLEAVED_WEIGHTED_ROUND_ROBIN:"INTERLEAVED_WEIGHTED_ROUND_ROBIN"}),x=Object.freeze({runTime:"runTime",waitTime:"waitTime",elu:"elu"});class S{pool;opts;nextWorkerNodeKey=0;strategyPolicy={useDynamicWorker:!1};taskStatisticsRequirements={runTime:p,waitTime:p,elu:p};constructor(e,t=g){this.pool=e,this.opts=t,this.choose=this.choose.bind(this)}setTaskStatisticsRequirements(e){this.taskStatisticsRequirements.runTime.average&&!0===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!1,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.runTime.median&&!1===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!0,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.waitTime.average&&!0===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!1,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.waitTime.median&&!1===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!0,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.elu.average&&!0===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!1,this.taskStatisticsRequirements.elu.median=e.elu.median),this.taskStatisticsRequirements.elu.median&&!1===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!0,this.taskStatisticsRequirements.elu.median=e.elu.median)}setOptions(e){this.opts=e??g,this.setTaskStatisticsRequirements(this.opts)}isWorkerNodeReady(e){return this.pool.workerNodes[e].info.ready}getWorkerTaskRunTime(e){return this.taskStatisticsRequirements.runTime.median?this.pool.workerNodes[e].usage.runTime?.median??0:this.pool.workerNodes[e].usage.runTime?.average??0}getWorkerTaskWaitTime(e){return this.taskStatisticsRequirements.waitTime.median?this.pool.workerNodes[e].usage.waitTime?.median??0:this.pool.workerNodes[e].usage.waitTime?.average??0}getWorkerTaskElu(e){return this.taskStatisticsRequirements.elu.median?this.pool.workerNodes[e].usage.elu.active?.median??0:this.pool.workerNodes[e].usage.elu.active?.average??0}computeDefaultWorkerWeight(){let e=0;for(const t of o.cpus()){const r=t.speed.toString().length-1;e+=1/(t.speed/Math.pow(10,r))*Math.pow(10,r)}return Math.round(e/o.cpus().length)}}class N extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:p,elu:{aggregate:!0,average:!0,median:!1}};workersVirtualTaskEndTimestamp=[];constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.workersVirtualTaskEndTimestamp=[],!0}update(e){return this.computeWorkerVirtualTaskEndTimestamp(e),!0}choose(){return this.fairShareNextWorkerNodeKey()}remove(e){return this.workersVirtualTaskEndTimestamp.splice(e,1),!0}fairShareNextWorkerNodeKey(){let e=1/0;for(const[t]of this.pool.workerNodes.entries()){null==this.workersVirtualTaskEndTimestamp[t]&&this.computeWorkerVirtualTaskEndTimestamp(t);const r=this.workersVirtualTaskEndTimestamp[t];this.isWorkerNodeReady(t)&&r<e&&(e=r,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}computeWorkerVirtualTaskEndTimestamp(e){this.workersVirtualTaskEndTimestamp[e]=this.getWorkerVirtualTaskEndTimestamp(e,this.getWorkerVirtualTaskStartTimestamp(e))}getWorkerVirtualTaskEndTimestamp(e,t){return t+(this.opts.measurement===x.elu?this.getWorkerTaskElu(e):this.getWorkerTaskRunTime(e))}getWorkerVirtualTaskStartTimestamp(e){return Math.max(performance.now(),this.workersVirtualTaskEndTimestamp[e]??-1/0)}}class v extends S{strategyPolicy={useDynamicWorker:!0};roundId=0;roundWeights;defaultWorkerWeight;constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight(),this.roundWeights=this.getRoundWeights()}reset(){return this.nextWorkerNodeKey=0,this.roundId=0,!0}update(){return!0}choose(){let e,t;for(let r=this.roundId;r<this.roundWeights.length;r++)for(let s=this.nextWorkerNodeKey;s<this.pool.workerNodes.length;s++){const i=this.opts.weights?.[s]??this.defaultWorkerWeight;if(this.isWorkerNodeReady(s)&&i>=this.roundWeights[r]){e=r,t=s;break}}this.roundId=e??0,this.nextWorkerNodeKey=t??0;const r=this.nextWorkerNodeKey;return this.nextWorkerNodeKey===this.pool.workerNodes.length-1?(this.nextWorkerNodeKey=0,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1):this.nextWorkerNodeKey=this.nextWorkerNodeKey+1,r}remove(e){return this.nextWorkerNodeKey===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeKey=0:this.nextWorkerNodeKey>this.pool.workerNodes.length-1&&(this.nextWorkerNodeKey=this.pool.workerNodes.length-1,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1)),!0}setOptions(e){super.setOptions(e),this.roundWeights=this.getRoundWeights()}getRoundWeights(){return null==this.opts.weights?[this.defaultWorkerWeight]:[...new Set(Object.values(this.opts.weights).slice().sort(((e,t)=>e-t)))]}}class R extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!1,median:!1},waitTime:{aggregate:!0,average:!1,median:!1},elu:p};constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){return this.leastBusyNextWorkerNodeKey()}remove(){return!0}leastBusyNextWorkerNodeKey(){let e=1/0;for(const[t,r]of this.pool.workerNodes.entries()){const s=(r.usage.runTime?.aggregate??0)+(r.usage.waitTime?.aggregate??0);if(this.isWorkerNodeReady(t)&&0===s){this.nextWorkerNodeKey=t;break}this.isWorkerNodeReady(t)&&s<e&&(e=s,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}}class E extends S{constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){return this.leastUsedNextWorkerNodeKey()}remove(){return!0}leastUsedNextWorkerNodeKey(){let e=1/0;for(const[t,r]of this.pool.workerNodes.entries()){const s=r.usage.tasks,i=s.executed+s.executing+s.queued;if(this.isWorkerNodeReady(t)&&0===i){this.nextWorkerNodeKey=t;break}this.isWorkerNodeReady(t)&&i<e&&(e=i,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}}class b extends S{taskStatisticsRequirements={runTime:p,waitTime:p,elu:{aggregate:!0,average:!1,median:!1}};constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){return this.leastEluNextWorkerNodeKey()}remove(){return!0}leastEluNextWorkerNodeKey(){let e=1/0;for(const[t,r]of this.pool.workerNodes.entries()){const s=r.usage,i=s.elu?.active?.aggregate??0;if(this.isWorkerNodeReady(t)&&0===i){this.nextWorkerNodeKey=t;break}this.isWorkerNodeReady(t)&&i<e&&(e=i,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}}class C extends S{strategyPolicy={useDynamicWorker:!0};constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.nextWorkerNodeKey=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeKey;do{this.roundRobinNextWorkerNodeKey()}while(!this.isWorkerNodeReady(this.nextWorkerNodeKey));return e}remove(e){return this.nextWorkerNodeKey===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeKey=0:this.nextWorkerNodeKey>this.pool.workerNodes.length-1&&(this.nextWorkerNodeKey=this.pool.workerNodes.length-1)),!0}roundRobinNextWorkerNodeKey(){return this.nextWorkerNodeKey=this.nextWorkerNodeKey===this.pool.workerNodes.length-1?0:this.nextWorkerNodeKey+1,this.nextWorkerNodeKey}}class I extends S{strategyPolicy={useDynamicWorker:!0};taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:p,elu:p};defaultWorkerWeight;workerVirtualTaskRunTime=0;constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight()}reset(){return this.nextWorkerNodeKey=0,this.workerVirtualTaskRunTime=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeKey;do{this.weightedRoundRobinNextWorkerNodeKey()}while(!this.isWorkerNodeReady(this.nextWorkerNodeKey));return e}remove(e){return this.nextWorkerNodeKey===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeKey=0:this.nextWorkerNodeKey>this.pool.workerNodes.length-1&&(this.nextWorkerNodeKey=this.pool.workerNodes.length-1),this.workerVirtualTaskRunTime=0),!0}weightedRoundRobinNextWorkerNodeKey(){const e=this.workerVirtualTaskRunTime;return e<(this.opts.weights?.[this.nextWorkerNodeKey]??this.defaultWorkerWeight)?this.workerVirtualTaskRunTime=e+this.getWorkerTaskRunTime(this.nextWorkerNodeKey):(this.nextWorkerNodeKey=this.nextWorkerNodeKey===this.pool.workerNodes.length-1?0:this.nextWorkerNodeKey+1,this.workerVirtualTaskRunTime=0),this.nextWorkerNodeKey}}class O{workerChoiceStrategy;workerChoiceStrategies;constructor(e,t=W.ROUND_ROBIN,r=g){this.workerChoiceStrategy=t,this.execute=this.execute.bind(this),this.workerChoiceStrategies=new Map([[W.ROUND_ROBIN,new(C.bind(this))(e,r)],[W.LEAST_USED,new(E.bind(this))(e,r)],[W.LEAST_BUSY,new(R.bind(this))(e,r)],[W.LEAST_ELU,new(b.bind(this))(e,r)],[W.FAIR_SHARE,new(N.bind(this))(e,r)],[W.WEIGHTED_ROUND_ROBIN,new(I.bind(this))(e,r)],[W.INTERLEAVED_WEIGHTED_ROUND_ROBIN,new(v.bind(this))(e,r)]])}getStrategyPolicy(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).strategyPolicy}getTaskStatisticsRequirements(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).taskStatisticsRequirements}setWorkerChoiceStrategy(e){this.workerChoiceStrategy!==e&&(this.workerChoiceStrategy=e),this.workerChoiceStrategies.get(this.workerChoiceStrategy)?.reset()}update(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).update(e)}execute(){const e=this.workerChoiceStrategies.get(this.workerChoiceStrategy).choose();if(null==e)throw new Error("Worker node key chosen is null or undefined");return e}remove(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).remove(e)}setOptions(e){for(const t of this.workerChoiceStrategies.values())t.setOptions(e)}}class q extends Array{size;constructor(e=1024,...t){super(),this.checkSize(e),this.size=e,arguments.length>1&&this.push(...t)}push(...e){const t=super.push(...e);return t>this.size&&super.splice(0,t-this.size),this.length}unshift(...e){return super.unshift(...e)>this.size&&super.splice(this.size,e.length),this.length}concat(...e){const t=super.concat(e);return t.size=this.size,t.length>t.size&&t.splice(0,t.length-t.size),t}splice(e,t,...r){let s;return arguments.length>=3&&void 0!==t?(s=super.splice(e,t),this.push(...r)):s=2===arguments.length?super.splice(e,t):super.splice(e),s}resize(e){if(this.checkSize(e),0===e)this.length=0;else if(e<this.size)for(let t=e;t<this.size;t++)super.pop();this.size=e}empty(){return 0===this.length}full(){return this.length===this.size}checkSize(e){if(!Number.isSafeInteger(e))throw new TypeError(`Invalid circular array size: ${e} is not a safe integer`);if(e<0)throw new RangeError(`Invalid circular array size: ${e} < 0`)}}class z{items;offset;size;maxSize;constructor(){this.clear()}enqueue(e){return this.items.push(e),++this.size,this.size>this.maxSize&&(this.maxSize=this.size),this.size}dequeue(){if(this.size<=0)return;const e=this.items[this.offset];return 2*++this.offset>=this.items.length&&(this.items=this.items.slice(this.offset),this.offset=0),--this.size,e}peek(){if(!(this.size<=0))return this.items[this.offset]}clear(){this.items=[],this.offset=0,this.size=0,this.maxSize=0}[Symbol.iterator](){const e=this.items;let t=this.offset;return{next:()=>{if(t>=e.length)return{value:void 0,done:!0};const r=e[t];return++t,{value:r,done:!1}}}}}const K=Object.freeze({cluster:"cluster",thread:"thread"});class P{worker;info;usage;tasksUsage;tasksQueue;constructor(e,t){this.worker=e,this.info=this.initWorkerInfo(e,t),this.usage=this.initWorkerUsage(),this.tasksUsage=new Map,this.tasksQueue=new z}tasksQueueSize(){return this.tasksQueue.size}tasksQueueMaxSize(){return this.tasksQueue.maxSize}enqueueTask(e){return this.tasksQueue.enqueue(e)}dequeueTask(){return this.tasksQueue.dequeue()}clearTasksQueue(){this.tasksQueue.clear()}resetUsage(){this.usage=this.initWorkerUsage(),this.tasksUsage.clear()}getTaskWorkerUsage(e){return this.tasksUsage.has(e)||this.tasksUsage.set(e,this.initTaskWorkerUsage(e)),this.tasksUsage.get(e)}initWorkerInfo(e,t){return{id:this.getWorkerId(e,t),type:t,dynamic:!1,ready:!1}}initWorkerUsage(){const e=()=>this.tasksQueueSize(),t=()=>this.tasksQueueMaxSize();return{tasks:{executed:0,executing:0,get queued(){return e()},get maxQueued(){return t()},failed:0},runTime:{history:new q},waitTime:{history:new q},elu:{idle:{history:new q},active:{history:new q}}}}initTaskWorkerUsage(e){const t=()=>{let t=0;for(const r of this.tasksQueue)r.name===e&&++t;return t};return{tasks:{executed:0,executing:0,get queued(){return t()},failed:0},runTime:{history:new q},waitTime:{history:new q},elu:{idle:{history:new q},active:{history:new q}}}}getWorkerId(e,t){return t===K.thread?e.threadId:t===K.cluster?e.id:void 0}}class M{numberOfWorkers;filePath;opts;workerNodes=[];emitter;promiseResponseMap=new Map;workerChoiceStrategyContext;startTimestamp;constructor(e,t,r){if(this.numberOfWorkers=e,this.filePath=t,this.opts=r,!this.isMain())throw new Error("Cannot start a pool from a worker!");for(this.checkNumberOfWorkers(this.numberOfWorkers),this.checkFilePath(this.filePath),this.checkPoolOptions(this.opts),this.chooseWorkerNode=this.chooseWorkerNode.bind(this),this.executeTask=this.executeTask.bind(this),this.enqueueTask=this.enqueueTask.bind(this),this.checkAndEmitEvents=this.checkAndEmitEvents.bind(this),!0===this.opts.enableEvents&&(this.emitter=new c),this.workerChoiceStrategyContext=new O(this,this.opts.workerChoiceStrategy,this.opts.workerChoiceStrategyOptions),this.setupHook();this.workerNodes.reduce(((e,t)=>t.info.dynamic?e:e+1),0)<this.numberOfWorkers;)this.createAndSetupWorker();this.startTimestamp=s.performance.now()}checkFilePath(e){if(null==e||"string"!=typeof e||"string"==typeof e&&0===e.trim().length)throw new Error("Please specify a file with a worker implementation");if(!i.existsSync(e))throw new Error(`Cannot find the worker file '${e}'`)}checkNumberOfWorkers(e){if(null==e)throw new Error("Cannot instantiate a pool without specifying the number of workers");if(!Number.isSafeInteger(e))throw new TypeError("Cannot instantiate a pool with a non safe integer number of workers");if(e<0)throw new RangeError("Cannot instantiate a pool with a negative number of workers");if(this.type===k.fixed&&0===e)throw new RangeError("Cannot instantiate a fixed pool with zero worker")}checkDynamicPoolSize(e,t){if(this.type===k.dynamic){if(e>t)throw new RangeError("Cannot instantiate a dynamic pool with a maximum pool size inferior to the minimum pool size");if(0===t)throw new RangeError("Cannot instantiate a dynamic pool with a pool size equal to zero");if(e===t)throw new RangeError("Cannot instantiate a dynamic pool with a minimum pool size equal to the maximum pool size. Use a fixed pool instead")}}checkPoolOptions(e){if(!T(e))throw new TypeError("Invalid pool options: must be a plain object");this.opts.workerChoiceStrategy=e.workerChoiceStrategy??W.ROUND_ROBIN,this.checkValidWorkerChoiceStrategy(this.opts.workerChoiceStrategy),this.opts.workerChoiceStrategyOptions=e.workerChoiceStrategyOptions??g,this.checkValidWorkerChoiceStrategyOptions(this.opts.workerChoiceStrategyOptions),this.opts.restartWorkerOnError=e.restartWorkerOnError??!0,this.opts.enableEvents=e.enableEvents??!0,this.opts.enableTasksQueue=e.enableTasksQueue??!1,this.opts.enableTasksQueue&&(this.checkValidTasksQueueOptions(e.tasksQueueOptions),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e.tasksQueueOptions))}checkValidWorkerChoiceStrategy(e){if(!Object.values(W).includes(e))throw new Error(`Invalid worker choice strategy '${e}'`)}checkValidWorkerChoiceStrategyOptions(e){if(!T(e))throw new TypeError("Invalid worker choice strategy options: must be a plain object");if(null!=e.weights&&Object.keys(e.weights).length!==this.maxSize)throw new Error("Invalid worker choice strategy options: must have a weight for each worker node");if(null!=e.measurement&&!Object.values(x).includes(e.measurement))throw new Error(`Invalid worker choice strategy options: invalid measurement '${e.measurement}'`)}checkValidTasksQueueOptions(e){if(null!=e&&!T(e))throw new TypeError("Invalid tasks queue options: must be a plain object");if(null!=e?.concurrency&&!Number.isSafeInteger(e.concurrency))throw new TypeError("Invalid worker tasks concurrency: must be an integer");if(null!=e?.concurrency&&e.concurrency<=0)throw new Error(`Invalid worker tasks concurrency '${e.concurrency}'`)}get info(){return{version:"2.6.15",type:this.type,worker:this.worker,ready:this.ready,strategy:this.opts.workerChoiceStrategy,minSize:this.minSize,maxSize:this.maxSize,...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{utilization:y(this.utilization)},workerNodes:this.workerNodes.length,idleWorkerNodes:this.workerNodes.reduce(((e,t)=>0===t.usage.tasks.executing?e+1:e),0),busyWorkerNodes:this.workerNodes.reduce(((e,t)=>t.usage.tasks.executing>0?e+1:e),0),executedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executed),0),executingTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executing),0),queuedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.queued),0),maxQueuedTasks:this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.maxQueued??0)),0),failedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.failed),0),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&{runTime:{minimum:y(Math.min(...this.workerNodes.map((e=>e.usage.runTime?.minimum??1/0)))),maximum:y(Math.max(...this.workerNodes.map((e=>e.usage.runTime?.maximum??-1/0)))),average:y(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&{median:y(w(this.workerNodes.map((e=>e.usage.runTime?.median??0))))}}},...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{waitTime:{minimum:y(Math.min(...this.workerNodes.map((e=>e.usage.waitTime?.minimum??1/0)))),maximum:y(Math.max(...this.workerNodes.map((e=>e.usage.waitTime?.maximum??-1/0)))),average:y(this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&{median:y(w(this.workerNodes.map((e=>e.usage.waitTime?.median??0))))}}}}}get starting(){return this.workerNodes.reduce(((e,t)=>t.info.dynamic?e:e+1),0)<this.minSize}get ready(){return this.workerNodes.reduce(((e,t)=>!t.info.dynamic&&t.info.ready?e+1:e),0)>=this.minSize}get utilization(){const e=(s.performance.now()-this.startTimestamp)*this.maxSize;return(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)+this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0))/e}getWorkerById(e){return this.workerNodes.find((t=>t.info.id===e))?.worker}checkMessageWorkerId(e){if(null!=e.workerId&&null==this.getWorkerById(e.workerId))throw new Error(`Worker message received from unknown worker '${e.workerId}'`)}getWorkerNodeKey(e){return this.workerNodes.findIndex((t=>t.worker===e))}setWorkerChoiceStrategy(e,t){this.checkValidWorkerChoiceStrategy(e),this.opts.workerChoiceStrategy=e,this.workerChoiceStrategyContext.setWorkerChoiceStrategy(this.opts.workerChoiceStrategy),null!=t&&this.setWorkerChoiceStrategyOptions(t);for(const e of this.workerNodes)e.resetUsage(),this.setWorkerStatistics(e.worker)}setWorkerChoiceStrategyOptions(e){this.checkValidWorkerChoiceStrategyOptions(e),this.opts.workerChoiceStrategyOptions=e,this.workerChoiceStrategyContext.setOptions(this.opts.workerChoiceStrategyOptions)}enableTasksQueue(e,t){!0!==this.opts.enableTasksQueue||e||this.flushTasksQueues(),this.opts.enableTasksQueue=e,this.setTasksQueueOptions(t)}setTasksQueueOptions(e){!0===this.opts.enableTasksQueue?(this.checkValidTasksQueueOptions(e),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e)):null!=this.opts.tasksQueueOptions&&delete this.opts.tasksQueueOptions}buildTasksQueueOptions(e){return{concurrency:e?.concurrency??1}}get full(){return this.workerNodes.length>=this.maxSize}internalBusy(){return-1===this.workerNodes.findIndex((e=>0===e.usage.tasks.executing))}async execute(e,t){const i=s.performance.now(),o=this.chooseWorkerNode(),a={name:t??m,data:e??{},timestamp:i,workerId:this.getWorkerInfo(o).id,id:r.randomUUID()},n=new Promise(((e,t)=>{this.promiseResponseMap.set(a.id,{resolve:e,reject:t,worker:this.workerNodes[o].worker})}));return!0===this.opts.enableTasksQueue&&(this.busy||this.workerNodes[o].usage.tasks.executing>=this.opts.tasksQueueOptions.concurrency)?this.enqueueTask(o,a):this.executeTask(o,a),this.checkAndEmitEvents(),n}async destroy(){await Promise.all(this.workerNodes.map((async(e,t)=>{this.flushTasksQueue(t);const r=new Promise((t=>{e.worker.on("exit",(()=>{t()}))}));await this.destroyWorker(e.worker),await r})))}setupHook(){}beforeTaskExecutionHook(e,t){const r=this.workerNodes[e].usage;++r.tasks.executing,this.updateWaitTimeWorkerUsage(r,t);const s=this.workerNodes[e].getTaskWorkerUsage(t.name);++s.tasks.executing,this.updateWaitTimeWorkerUsage(s,t)}afterTaskExecutionHook(e,t){const r=this.getWorkerNodeKey(e),s=this.workerNodes[r].usage;this.updateTaskStatisticsWorkerUsage(s,t),this.updateRunTimeWorkerUsage(s,t),this.updateEluWorkerUsage(s,t);const i=this.workerNodes[r].getTaskWorkerUsage(t.taskPerformance?.name??m);this.updateTaskStatisticsWorkerUsage(i,t),this.updateRunTimeWorkerUsage(i,t),this.updateEluWorkerUsage(i,t)}updateTaskStatisticsWorkerUsage(e,t){const r=e.tasks;--r.executing,null==t.taskError?++r.executed:++r.failed}updateRunTimeWorkerUsage(e,t){if(this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate){const r=t.taskPerformance?.runTime??0;e.runTime.aggregate=(e.runTime.aggregate??0)+r,e.runTime.minimum=Math.min(r,e.runTime?.minimum??1/0),e.runTime.maximum=Math.max(r,e.runTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.average&&0!==e.tasks.executed&&(e.runTime.average=e.runTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&null!=t.taskPerformance?.runTime&&(e.runTime.history.push(t.taskPerformance.runTime),e.runTime.median=w(e.runTime.history))}}updateWaitTimeWorkerUsage(e,t){const r=s.performance.now(),i=r-(t.timestamp??r);this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&(e.waitTime.aggregate=(e.waitTime?.aggregate??0)+i,e.waitTime.minimum=Math.min(i,e.waitTime?.minimum??1/0),e.waitTime.maximum=Math.max(i,e.waitTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.average&&0!==e.tasks.executed&&(e.waitTime.average=e.waitTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&(e.waitTime.history.push(i),e.waitTime.median=w(e.waitTime.history)))}updateEluWorkerUsage(e,t){this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate&&null!=t.taskPerformance?.elu&&(e.elu.idle.aggregate=(e.elu.idle?.aggregate??0)+t.taskPerformance.elu.idle,e.elu.active.aggregate=(e.elu.active?.aggregate??0)+t.taskPerformance.elu.active,null!=e.elu.utilization?e.elu.utilization=(e.elu.utilization+t.taskPerformance.elu.utilization)/2:e.elu.utilization=t.taskPerformance.elu.utilization,e.elu.idle.minimum=Math.min(t.taskPerformance.elu.idle,e.elu.idle?.minimum??1/0),e.elu.idle.maximum=Math.max(t.taskPerformance.elu.idle,e.elu.idle?.maximum??-1/0),e.elu.active.minimum=Math.min(t.taskPerformance.elu.active,e.elu.active?.minimum??1/0),e.elu.active.maximum=Math.max(t.taskPerformance.elu.active,e.elu.active?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.average&&0!==e.tasks.executed&&(e.elu.idle.average=e.elu.idle.aggregate/e.tasks.executed,e.elu.active.average=e.elu.active.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.median&&(e.elu.idle.history.push(t.taskPerformance.elu.idle),e.elu.active.history.push(t.taskPerformance.elu.active),e.elu.idle.median=w(e.elu.idle.history),e.elu.active.median=w(e.elu.active.history)))}chooseWorkerNode(){if(this.shallCreateDynamicWorker()){const e=this.createAndSetupDynamicWorker();if(this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker)return this.getWorkerNodeKey(e)}return this.workerChoiceStrategyContext.execute()}shallCreateDynamicWorker(){return this.type===k.dynamic&&!this.full&&this.internalBusy()}createAndSetupWorker(){const e=this.createWorker();return e.on("message",this.opts.messageHandler??l),e.on("error",this.opts.errorHandler??l),e.on("error",(t=>{const r=this.getWorkerNodeKey(e),s=this.getWorkerInfo(r);s.ready=!1,null!=this.emitter&&this.emitter.emit(d.error,t),!0!==this.opts.restartWorkerOnError||this.starting||(s.dynamic?this.createAndSetupDynamicWorker():this.createAndSetupWorker()),!0===this.opts.enableTasksQueue&&this.redistributeQueuedTasks(r)})),e.on("online",this.opts.onlineHandler??l),e.on("exit",this.opts.exitHandler??l),e.once("exit",(()=>{this.removeWorkerNode(e)})),this.addWorkerNode(e),this.afterWorkerSetup(e),e}createAndSetupDynamicWorker(){const e=this.createAndSetupWorker();this.registerWorkerMessageListener(e,(t=>{const r=this.getWorkerNodeKey(e);var s;s=f.HARD,(t.kill===s||null!=t.kill&&(!1===this.opts.enableTasksQueue&&0===this.workerNodes[r].usage.tasks.executing||!0===this.opts.enableTasksQueue&&0===this.workerNodes[r].usage.tasks.executing&&0===this.tasksQueueSize(r)))&&this.destroyWorker(e)}));const t=this.getWorkerInfo(this.getWorkerNodeKey(e));return t.dynamic=!0,this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker&&(t.ready=!0),this.sendToWorker(e,{checkActive:!0,workerId:t.id}),e}registerWorkerMessageListener(e,t){e.on("message",t)}afterWorkerSetup(e){this.registerWorkerMessageListener(e,this.workerListener()),this.sendWorkerStartupMessage(e),this.setWorkerStatistics(e)}sendWorkerStartupMessage(e){this.sendToWorker(e,{ready:!1,workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id})}redistributeQueuedTasks(e){for(;this.tasksQueueSize(e)>0;){let t=e,r=1/0;for(const[s,i]of this.workerNodes.entries()){const o=this.getWorkerInfo(s);if(s!==e&&o.ready&&0===i.usage.tasks.queued){t=s;break}s!==e&&o.ready&&i.usage.tasks.queued<r&&(r=i.usage.tasks.queued,t=s)}this.enqueueTask(t,this.dequeueTask(e))}}workerListener(){return e=>{this.checkMessageWorkerId(e),null!=e.ready?this.handleWorkerReadyResponse(e):null!=e.id&&this.handleTaskExecutionResponse(e)}}handleWorkerReadyResponse(e){const t=this.getWorkerById(e.workerId);this.getWorkerInfo(this.getWorkerNodeKey(t)).ready=e.ready,null!=this.emitter&&this.ready&&this.emitter.emit(d.ready,this.info)}handleTaskExecutionResponse(e){const t=this.promiseResponseMap.get(e.id);if(null!=t){null!=e.taskError?(null!=this.emitter&&this.emitter.emit(d.taskError,e.taskError),t.reject(e.taskError.message)):t.resolve(e.data),this.afterTaskExecutionHook(t.worker,e),this.promiseResponseMap.delete(e.id);const r=this.getWorkerNodeKey(t.worker);!0===this.opts.enableTasksQueue&&this.tasksQueueSize(r)>0&&this.executeTask(r,this.dequeueTask(r)),this.workerChoiceStrategyContext.update(r)}}checkAndEmitEvents(){null!=this.emitter&&(this.busy&&this.emitter.emit(d.busy,this.info),this.type===k.dynamic&&this.full&&this.emitter.emit(d.full,this.info))}getWorkerInfo(e){return this.workerNodes[e].info}addWorkerNode(e){const t=new P(e,this.worker);return this.starting&&(t.info.ready=!0),this.workerNodes.push(t)}removeWorkerNode(e){const t=this.getWorkerNodeKey(e);-1!==t&&(this.workerNodes.splice(t,1),this.workerChoiceStrategyContext.remove(t))}executeTask(e,t){this.beforeTaskExecutionHook(e,t),this.sendToWorker(this.workerNodes[e].worker,t)}enqueueTask(e,t){return this.workerNodes[e].enqueueTask(t)}dequeueTask(e){return this.workerNodes[e].dequeueTask()}tasksQueueSize(e){return this.workerNodes[e].tasksQueueSize()}flushTasksQueue(e){for(;this.tasksQueueSize(e)>0;)this.executeTask(e,this.dequeueTask(e));this.workerNodes[e].clearTasksQueue()}flushTasksQueues(){for(const[e]of this.workerNodes.entries())this.flushTasksQueue(e)}setWorkerStatistics(e){this.sendToWorker(e,{statistics:{runTime:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate,elu:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate},workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id})}}class A extends M{opts;constructor(e,t,r={}){super(e,t,r),this.opts=r}setupHook(){t.setupPrimary({...this.opts.settings,exec:this.filePath})}isMain(){return t.isPrimary}destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.id}),e.on("disconnect",(()=>{e.kill()})),e.disconnect()}sendToWorker(e,t){e.send(t)}createWorker(){return t.fork(this.opts.env)}get type(){return k.fixed}get worker(){return K.cluster}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}class Q extends M{opts;constructor(e,t,r={}){super(e,t,r),this.opts=r}isMain(){return a.isMainThread}async destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.threadId}),await e.terminate()}sendToWorker(e,t){e.postMessage(t)}createWorker(){return new a.Worker(this.filePath,{env:a.SHARE_ENV,...this.opts.workerOptions})}get type(){return k.fixed}get worker(){return K.thread}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}const U=6e4,D=f.SOFT;class F extends n.AsyncResource{isMain;mainWorker;opts;taskFunctions;lastTaskTimestamp;statistics;activeInterval;constructor(e,t,r,s,i={killBehavior:D,maxInactiveTime:U}){super(e),this.isMain=t,this.mainWorker=s,this.opts=i,this.checkWorkerOptions(this.opts),this.checkTaskFunctions(r),this.isMain||this.mainWorker?.on("message",this.messageListener.bind(this))}checkWorkerOptions(e){this.opts.killBehavior=e.killBehavior??D,this.opts.maxInactiveTime=e.maxInactiveTime??U,delete this.opts.async}checkTaskFunctions(e){if(null==e)throw new Error("taskFunctions parameter is mandatory");if(this.taskFunctions=new Map,"function"==typeof e)this.taskFunctions.set(m,e.bind(this));else{if(!T(e))throw new TypeError("taskFunctions parameter is not a function or a plain object");{let t=!0;for(const[r,s]of Object.entries(e)){if("string"!=typeof r)throw new TypeError("A taskFunctions parameter object key is not a string");if("function"!=typeof s)throw new TypeError("A taskFunctions parameter object value is not a function");this.taskFunctions.set(r,s.bind(this)),t&&(this.taskFunctions.set(m,s.bind(this)),t=!1)}if(t)throw new Error("taskFunctions parameter object is empty")}}}hasTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");return this.taskFunctions.has(e)}addTaskFunction(e,t){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===m)throw new Error("Cannot add a task function with the default reserved name");if("function"!=typeof t)throw new TypeError("fn parameter is not a function");try{return this.taskFunctions.get(e)===this.taskFunctions.get(m)&&this.taskFunctions.set(m,t.bind(this)),this.taskFunctions.set(e,t.bind(this)),!0}catch{return!1}}removeTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===m)throw new Error("Cannot remove the task function with the default reserved name");if(this.taskFunctions.get(e)===this.taskFunctions.get(m))throw new Error("Cannot remove the task function used as the default task function");return this.taskFunctions.delete(e)}setDefaultTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===m)throw new Error("Cannot set the default task function reserved name as the default task function");if(!this.taskFunctions.has(e))throw new Error("Cannot set the default task function to a non-existing task function");try{return this.taskFunctions.set(m,this.taskFunctions.get(e)?.bind(this)),!0}catch{return!1}}messageListener(e){e.workerId===this.id&&(null!=e.ready?this.sendReadyResponse():null!=e.statistics?this.statistics=e.statistics:null!=e.checkActive?e.checkActive?this.startCheckActive():this.stopCheckActive():null!=e.id&&null!=e.data?this.run(e):!0===e.kill&&(this.stopCheckActive(),this.emitDestroy()))}sendReadyResponse(){!this.isMain&&this.sendToMainWorker({ready:!0,workerId:this.id})}startCheckActive(){this.lastTaskTimestamp=s.performance.now(),this.activeInterval=setInterval(this.checkActive.bind(this),(this.opts.maxInactiveTime??U)/2)}stopCheckActive(){null!=this.activeInterval&&clearInterval(this.activeInterval)}checkActive(){s.performance.now()-this.lastTaskTimestamp>(this.opts.maxInactiveTime??U)&&this.sendToMainWorker({kill:this.opts.killBehavior,workerId:this.id})}getMainWorker(){if(null==this.mainWorker)throw new Error("Main worker not set");return this.mainWorker}handleError(e){return e instanceof Error?e.message:e}run(e){const t=this.getTaskFunction(e.name);(e=>"function"==typeof e&&"AsyncFunction"===e.constructor.name)(t)?this.runInAsyncScope(this.runAsync.bind(this),this,t,e):this.runInAsyncScope(this.runSync.bind(this),this,t,e)}runSync(e,t){try{let r=this.beginTaskPerformance(t.name);const s=e(t.data);r=this.endTaskPerformance(r),this.sendToMainWorker({data:s,taskPerformance:r,workerId:this.id,id:t.id})}catch(e){const r=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??m,message:r,data:t.data},workerId:this.id,id:t.id})}finally{this.isMain||null==this.activeInterval||(this.lastTaskTimestamp=s.performance.now())}}runAsync(e,t){let r=this.beginTaskPerformance(t.name);e(t.data).then((e=>(r=this.endTaskPerformance(r),this.sendToMainWorker({data:e,taskPerformance:r,workerId:this.id,id:t.id}),null))).catch((e=>{const r=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??m,message:r,data:t.data},workerId:this.id,id:t.id})})).finally((()=>{this.isMain||null==this.activeInterval||(this.lastTaskTimestamp=s.performance.now())})).catch(l)}getTaskFunction(e){e=e??m;const t=this.taskFunctions.get(e);if(null==t)throw new Error(`Task function '${e}' not found`);return t}beginTaskPerformance(e){return this.checkStatistics(),{name:e??m,timestamp:s.performance.now(),...this.statistics.elu&&{elu:s.performance.eventLoopUtilization()}}}endTaskPerformance(e){return this.checkStatistics(),{...e,...this.statistics.runTime&&{runTime:s.performance.now()-e.timestamp},...this.statistics.elu&&{elu:s.performance.eventLoopUtilization(e.elu)}}}checkStatistics(){if(null==this.statistics)throw new Error("Performance statistics computation requirements not set")}}exports.ClusterWorker=class extends F{constructor(e,r={}){super("worker-cluster-pool:poolifier",t.isPrimary,e,t.worker,r)}get id(){return this.getMainWorker().id}sendToMainWorker(e){this.getMainWorker().send(e)}},exports.DynamicClusterPool=class extends A{max;constructor(e,t,r,s={}){super(e,r,s),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return k.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.DynamicThreadPool=class extends Q{max;constructor(e,t,r,s={}){super(e,r,s),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return k.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.FixedClusterPool=A,exports.FixedThreadPool=Q,exports.KillBehaviors=f,exports.Measurements=x,exports.PoolEvents=d,exports.PoolTypes=k,exports.ThreadWorker=class extends F{constructor(e,t={}){super("worker-thread-pool:poolifier",a.isMainThread,e,a.parentPort,t)}get id(){return a.threadId}sendToMainWorker(e){this.getMainWorker().postMessage(e)}handleError(e){return e}},exports.WorkerChoiceStrategies=W,exports.WorkerTypes=K,exports.availableParallelism=()=>{let e=1;try{e=h.availableParallelism()}catch{const t=h.cpus();Array.isArray(t)&&t.length>0&&(e=t.length)}return e};

lib/index.js

@@ -1,1 +0,1 @@
-"use strict";var e=require("node:events"),t=require("node:cluster"),s=require("node:crypto"),r=require("node:perf_hooks"),i=require("node:os"),o=require("node:worker_threads"),a=require("node:async_hooks");function n(e){var t=Object.create(null);return e&&Object.keys(e).forEach((function(s){if("default"!==s){var r=Object.getOwnPropertyDescriptor(e,s);Object.defineProperty(t,s,r.get?r:{enumerable:!0,get:function(){return e[s]}})}})),t.default=e,Object.freeze(t)}var u=n(i);const h=Object.freeze({fixed:"fixed",dynamic:"dynamic"});class k extends e.EventEmitter{}const c=Object.freeze({full:"full",ready:"ready",busy:"busy",error:"error",taskError:"taskError"}),d="default",m=Object.freeze((()=>{})),l={runTime:{median:!1},waitTime:{median:!1},elu:{median:!1}},g={aggregate:!1,average:!1,median:!1},p=e=>{if(Array.isArray(e)&&0===e.length)return 0;if(Array.isArray(e)&&1===e.length)return e[0];const t=e.slice().sort(((e,t)=>e-t));return(t[t.length-1>>1]+t[t.length>>1])/2},w=(e,t=2)=>{const s=Math.pow(10,t);return Math.round(e*s*(1+Number.EPSILON))/s},T=e=>"object"==typeof e&&null!==e&&e?.constructor===Object&&"[object Object]"===Object.prototype.toString.call(e),f=Object.freeze({SOFT:"SOFT",HARD:"HARD"}),y=Object.freeze({ROUND_ROBIN:"ROUND_ROBIN",LEAST_USED:"LEAST_USED",LEAST_BUSY:"LEAST_BUSY",LEAST_ELU:"LEAST_ELU",FAIR_SHARE:"FAIR_SHARE",WEIGHTED_ROUND_ROBIN:"WEIGHTED_ROUND_ROBIN",INTERLEAVED_WEIGHTED_ROUND_ROBIN:"INTERLEAVED_WEIGHTED_ROUND_ROBIN"}),W=Object.freeze({runTime:"runTime",waitTime:"waitTime",elu:"elu"});class S{pool;opts;nextWorkerNodeId=0;strategyPolicy={useDynamicWorker:!1};taskStatisticsRequirements={runTime:g,waitTime:g,elu:g};constructor(e,t=l){this.pool=e,this.opts=t,this.choose=this.choose.bind(this)}setTaskStatisticsRequirements(e){this.taskStatisticsRequirements.runTime.average&&!0===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!1,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.runTime.median&&!1===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!0,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.waitTime.average&&!0===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!1,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.waitTime.median&&!1===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!0,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.elu.average&&!0===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!1,this.taskStatisticsRequirements.elu.median=e.elu.median),this.taskStatisticsRequirements.elu.median&&!1===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!0,this.taskStatisticsRequirements.elu.median=e.elu.median)}setOptions(e){this.opts=e??l,this.setTaskStatisticsRequirements(this.opts)}getWorkerTaskRunTime(e){return this.taskStatisticsRequirements.runTime.median?this.pool.workerNodes[e].usage.runTime?.median??0:this.pool.workerNodes[e].usage.runTime?.average??0}getWorkerTaskWaitTime(e){return this.taskStatisticsRequirements.waitTime.median?this.pool.workerNodes[e].usage.waitTime?.median??0:this.pool.workerNodes[e].usage.waitTime?.average??0}getWorkerTaskElu(e){return this.taskStatisticsRequirements.elu.median?this.pool.workerNodes[e].usage.elu.active?.median??0:this.pool.workerNodes[e].usage.elu.active?.average??0}computeDefaultWorkerWeight(){let e=0;for(const t of i.cpus()){const s=t.speed.toString().length-1;e+=1/(t.speed/Math.pow(10,s))*Math.pow(10,s)}return Math.round(e/i.cpus().length)}}class x extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:g,elu:{aggregate:!0,average:!0,median:!1}};workersVirtualTaskEndTimestamp=[];constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.workersVirtualTaskEndTimestamp=[],!0}update(e){return this.computeWorkerVirtualTaskEndTimestamp(e),!0}choose(){let e=1/0;for(const[t]of this.pool.workerNodes.entries()){null==this.workersVirtualTaskEndTimestamp[t]&&this.computeWorkerVirtualTaskEndTimestamp(t);const s=this.workersVirtualTaskEndTimestamp[t];s<e&&(e=s,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(e){return this.workersVirtualTaskEndTimestamp.splice(e,1),!0}computeWorkerVirtualTaskEndTimestamp(e){this.workersVirtualTaskEndTimestamp[e]=this.getWorkerVirtualTaskEndTimestamp(e,this.getWorkerVirtualTaskStartTimestamp(e))}getWorkerVirtualTaskEndTimestamp(e,t){return t+(this.opts.measurement===W.elu?this.getWorkerTaskElu(e):this.getWorkerTaskRunTime(e))}getWorkerVirtualTaskStartTimestamp(e){return Math.max(performance.now(),this.workersVirtualTaskEndTimestamp[e]??-1/0)}}class N extends S{strategyPolicy={useDynamicWorker:!0};roundId=0;roundWeights;defaultWorkerWeight;constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight(),this.roundWeights=this.getRoundWeights()}reset(){return this.nextWorkerNodeId=0,this.roundId=0,!0}update(){return!0}choose(){let e,t;for(let s=this.roundId;s<this.roundWeights.length;s++)for(let r=this.nextWorkerNodeId;r<this.pool.workerNodes.length;r++){if((this.opts.weights?.[r]??this.defaultWorkerWeight)>=this.roundWeights[s]){e=s,t=r;break}}this.roundId=e??0,this.nextWorkerNodeId=t??0;const s=this.nextWorkerNodeId;return this.nextWorkerNodeId===this.pool.workerNodes.length-1?(this.nextWorkerNodeId=0,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1):this.nextWorkerNodeId=this.nextWorkerNodeId+1,s}remove(e){return this.nextWorkerNodeId===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeId=0:this.nextWorkerNodeId>this.pool.workerNodes.length-1&&(this.nextWorkerNodeId=this.pool.workerNodes.length-1,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1)),!0}setOptions(e){super.setOptions(e),this.roundWeights=this.getRoundWeights()}getRoundWeights(){return null==this.opts.weights?[this.defaultWorkerWeight]:[...new Set(Object.values(this.opts.weights).slice().sort(((e,t)=>e-t)))]}}class v extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!1,median:!1},waitTime:{aggregate:!0,average:!1,median:!1},elu:g};constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){let e=1/0;for(const[t,s]of this.pool.workerNodes.entries()){const r=(s.usage.runTime?.aggregate??0)+(s.usage.waitTime?.aggregate??0);if(0===r){this.nextWorkerNodeId=t;break}r<e&&(e=r,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(){return!0}}class I extends S{constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){let e=1/0;for(const[t,s]of this.pool.workerNodes.entries()){const r=s.usage.tasks,i=r.executed+r.executing+r.queued;if(0===i){this.nextWorkerNodeId=t;break}i<e&&(e=i,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(){return!0}}class E extends S{taskStatisticsRequirements={runTime:g,waitTime:g,elu:{aggregate:!0,average:!1,median:!1}};constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){let e=1/0;for(const[t,s]of this.pool.workerNodes.entries()){const r=s.usage,i=r.elu?.active?.aggregate??0;if(0===i){this.nextWorkerNodeId=t;break}i<e&&(e=i,this.nextWorkerNodeId=t)}return this.nextWorkerNodeId}remove(){return!0}}class R extends S{strategyPolicy={useDynamicWorker:!0};constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.nextWorkerNodeId=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeId;return this.nextWorkerNodeId=this.nextWorkerNodeId===this.pool.workerNodes.length-1?0:this.nextWorkerNodeId+1,e}remove(e){return this.nextWorkerNodeId===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeId=0:this.nextWorkerNodeId>this.pool.workerNodes.length-1&&(this.nextWorkerNodeId=this.pool.workerNodes.length-1)),!0}}class b extends S{strategyPolicy={useDynamicWorker:!0};taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:g,elu:g};defaultWorkerWeight;workerVirtualTaskRunTime=0;constructor(e,t=l){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight()}reset(){return this.nextWorkerNodeId=0,this.workerVirtualTaskRunTime=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeId,t=this.workerVirtualTaskRunTime;return t<(this.opts.weights?.[e]??this.defaultWorkerWeight)?this.workerVirtualTaskRunTime=t+this.getWorkerTaskRunTime(e):(this.nextWorkerNodeId=this.nextWorkerNodeId===this.pool.workerNodes.length-1?0:this.nextWorkerNodeId+1,this.workerVirtualTaskRunTime=0),e}remove(e){return this.nextWorkerNodeId===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeId=0:this.nextWorkerNodeId>this.pool.workerNodes.length-1&&(this.nextWorkerNodeId=this.pool.workerNodes.length-1),this.workerVirtualTaskRunTime=0),!0}}class C{workerChoiceStrategy;workerChoiceStrategies;constructor(e,t=y.ROUND_ROBIN,s=l){this.workerChoiceStrategy=t,this.execute=this.execute.bind(this),this.workerChoiceStrategies=new Map([[y.ROUND_ROBIN,new(R.bind(this))(e,s)],[y.LEAST_USED,new(I.bind(this))(e,s)],[y.LEAST_BUSY,new(v.bind(this))(e,s)],[y.LEAST_ELU,new(E.bind(this))(e,s)],[y.FAIR_SHARE,new(x.bind(this))(e,s)],[y.WEIGHTED_ROUND_ROBIN,new(b.bind(this))(e,s)],[y.INTERLEAVED_WEIGHTED_ROUND_ROBIN,new(N.bind(this))(e,s)]])}getStrategyPolicy(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).strategyPolicy}getTaskStatisticsRequirements(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).taskStatisticsRequirements}setWorkerChoiceStrategy(e){this.workerChoiceStrategy!==e&&(this.workerChoiceStrategy=e),this.workerChoiceStrategies.get(this.workerChoiceStrategy)?.reset()}update(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).update(e)}execute(){const e=this.workerChoiceStrategies.get(this.workerChoiceStrategy).choose();if(null==e)throw new Error("Worker node key chosen is null or undefined");return e}remove(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).remove(e)}setOptions(e){for(const t of this.workerChoiceStrategies.values())t.setOptions(e)}}class O extends Array{size;constructor(e=1024,...t){super(),this.checkSize(e),this.size=e,arguments.length>1&&this.push(...t)}push(...e){const t=super.push(...e);return t>this.size&&super.splice(0,t-this.size),this.length}unshift(...e){return super.unshift(...e)>this.size&&super.splice(this.size,e.length),this.length}concat(...e){const t=super.concat(e);return t.size=this.size,t.length>t.size&&t.splice(0,t.length-t.size),t}splice(e,t,...s){let r;return arguments.length>=3&&void 0!==t?(r=super.splice(e,t),this.push(...s)):r=2===arguments.length?super.splice(e,t):super.splice(e),r}resize(e){if(this.checkSize(e),0===e)this.length=0;else if(e<this.size)for(let t=e;t<this.size;t++)super.pop();this.size=e}empty(){return 0===this.length}full(){return this.length===this.size}checkSize(e){if(!Number.isSafeInteger(e))throw new TypeError(`Invalid circular array size: ${e} is not a safe integer`);if(e<0)throw new RangeError(`Invalid circular array size: ${e} < 0`)}}class z{items;offset;size;maxSize;constructor(){this.clear()}enqueue(e){return this.items.push(e),++this.size,this.size>this.maxSize&&(this.maxSize=this.size),this.size}dequeue(){if(this.size<=0)return;const e=this.items[this.offset];return 2*++this.offset>=this.items.length&&(this.items=this.items.slice(this.offset),this.offset=0),--this.size,e}peek(){if(!(this.size<=0))return this.items[this.offset]}clear(){this.items=[],this.offset=0,this.size=0,this.maxSize=0}[Symbol.iterator](){const e=this.items;let t=this.offset;return{next:()=>{if(t>=e.length)return{value:void 0,done:!0};const s=e[t];return++t,{value:s,done:!1}}}}}const q=Object.freeze({cluster:"cluster",thread:"thread"});class M{worker;info;usage;tasksUsage;tasksQueue;constructor(e,t){this.worker=e,this.info=this.initWorkerInfo(e,t),this.usage=this.initWorkerUsage(),this.tasksUsage=new Map,this.tasksQueue=new z}tasksQueueSize(){return this.tasksQueue.size}tasksQueueMaxSize(){return this.tasksQueue.maxSize}enqueueTask(e){return this.tasksQueue.enqueue(e)}dequeueTask(){return this.tasksQueue.dequeue()}clearTasksQueue(){this.tasksQueue.clear()}resetUsage(){this.usage=this.initWorkerUsage(),this.tasksUsage.clear()}getTaskWorkerUsage(e){return this.tasksUsage.has(e)||this.tasksUsage.set(e,this.initTaskWorkerUsage(e)),this.tasksUsage.get(e)}initWorkerInfo(e,t){return{id:this.getWorkerId(e,t),type:t,dynamic:!1,ready:!1}}initWorkerUsage(){const e=()=>this.tasksQueueSize(),t=()=>this.tasksQueueMaxSize();return{tasks:{executed:0,executing:0,get queued(){return e()},get maxQueued(){return t()},failed:0},runTime:{history:new O},waitTime:{history:new O},elu:{idle:{history:new O},active:{history:new O}}}}initTaskWorkerUsage(e){const t=()=>{let t=0;for(const s of this.tasksQueue)s.name===e&&++t;return t};return{tasks:{executed:0,executing:0,get queued(){return t()},failed:0},runTime:{history:new O},waitTime:{history:new O},elu:{idle:{history:new O},active:{history:new O}}}}getWorkerId(e,t){return t===q.thread?e.threadId:t===q.cluster?e.id:void 0}}class P{numberOfWorkers;filePath;opts;workerNodes=[];emitter;promiseResponseMap=new Map;workerChoiceStrategyContext;startTimestamp;constructor(e,t,s){if(this.numberOfWorkers=e,this.filePath=t,this.opts=s,!this.isMain())throw new Error("Cannot start a pool from a worker!");for(this.checkNumberOfWorkers(this.numberOfWorkers),this.checkFilePath(this.filePath),this.checkPoolOptions(this.opts),this.chooseWorkerNode=this.chooseWorkerNode.bind(this),this.executeTask=this.executeTask.bind(this),this.enqueueTask=this.enqueueTask.bind(this),this.checkAndEmitEvents=this.checkAndEmitEvents.bind(this),!0===this.opts.enableEvents&&(this.emitter=new k),this.workerChoiceStrategyContext=new C(this,this.opts.workerChoiceStrategy,this.opts.workerChoiceStrategyOptions),this.setupHook();this.workerNodes.length<this.numberOfWorkers;)this.createAndSetupWorker();this.startTimestamp=r.performance.now()}checkFilePath(e){if(null==e||"string"==typeof e&&0===e.trim().length)throw new Error("Please specify a file with a worker implementation")}checkNumberOfWorkers(e){if(null==e)throw new Error("Cannot instantiate a pool without specifying the number of workers");if(!Number.isSafeInteger(e))throw new TypeError("Cannot instantiate a pool with a non safe integer number of workers");if(e<0)throw new RangeError("Cannot instantiate a pool with a negative number of workers");if(this.type===h.fixed&&0===e)throw new RangeError("Cannot instantiate a fixed pool with zero worker")}checkDynamicPoolSize(e,t){if(this.type===h.dynamic){if(e>t)throw new RangeError("Cannot instantiate a dynamic pool with a maximum pool size inferior to the minimum pool size");if(0===e&&0===t)throw new RangeError("Cannot instantiate a dynamic pool with a minimum pool size and a maximum pool size equal to zero");if(e===t)throw new RangeError("Cannot instantiate a dynamic pool with a minimum pool size equal to the maximum pool size. Use a fixed pool instead")}}checkPoolOptions(e){if(!T(e))throw new TypeError("Invalid pool options: must be a plain object");this.opts.workerChoiceStrategy=e.workerChoiceStrategy??y.ROUND_ROBIN,this.checkValidWorkerChoiceStrategy(this.opts.workerChoiceStrategy),this.opts.workerChoiceStrategyOptions=e.workerChoiceStrategyOptions??l,this.checkValidWorkerChoiceStrategyOptions(this.opts.workerChoiceStrategyOptions),this.opts.restartWorkerOnError=e.restartWorkerOnError??!0,this.opts.enableEvents=e.enableEvents??!0,this.opts.enableTasksQueue=e.enableTasksQueue??!1,this.opts.enableTasksQueue&&(this.checkValidTasksQueueOptions(e.tasksQueueOptions),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e.tasksQueueOptions))}checkValidWorkerChoiceStrategy(e){if(!Object.values(y).includes(e))throw new Error(`Invalid worker choice strategy '${e}'`)}checkValidWorkerChoiceStrategyOptions(e){if(!T(e))throw new TypeError("Invalid worker choice strategy options: must be a plain object");if(null!=e.weights&&Object.keys(e.weights).length!==this.maxSize)throw new Error("Invalid worker choice strategy options: must have a weight for each worker node");if(null!=e.measurement&&!Object.values(W).includes(e.measurement))throw new Error(`Invalid worker choice strategy options: invalid measurement '${e.measurement}'`)}checkValidTasksQueueOptions(e){if(null!=e&&!T(e))throw new TypeError("Invalid tasks queue options: must be a plain object");if(null!=e?.concurrency&&!Number.isSafeInteger(e.concurrency))throw new TypeError("Invalid worker tasks concurrency: must be an integer");if(null!=e?.concurrency&&e.concurrency<=0)throw new Error(`Invalid worker tasks concurrency '${e.concurrency}'`)}get info(){return{version:"2.6.14",type:this.type,worker:this.worker,ready:this.ready,strategy:this.opts.workerChoiceStrategy,minSize:this.minSize,maxSize:this.maxSize,...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{utilization:w(this.utilization)},workerNodes:this.workerNodes.length,idleWorkerNodes:this.workerNodes.reduce(((e,t)=>0===t.usage.tasks.executing?e+1:e),0),busyWorkerNodes:this.workerNodes.reduce(((e,t)=>t.usage.tasks.executing>0?e+1:e),0),executedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executed),0),executingTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executing),0),queuedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.queued),0),maxQueuedTasks:this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.maxQueued??0)),0),failedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.failed),0),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&{runTime:{minimum:w(Math.min(...this.workerNodes.map((e=>e.usage.runTime?.minimum??1/0)))),maximum:w(Math.max(...this.workerNodes.map((e=>e.usage.runTime?.maximum??-1/0)))),average:w(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&{median:w(p(this.workerNodes.map((e=>e.usage.runTime?.median??0))))}}},...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{waitTime:{minimum:w(Math.min(...this.workerNodes.map((e=>e.usage.waitTime?.minimum??1/0)))),maximum:w(Math.max(...this.workerNodes.map((e=>e.usage.waitTime?.maximum??-1/0)))),average:w(this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&{median:w(p(this.workerNodes.map((e=>e.usage.waitTime?.median??0))))}}}}}get starting(){return this.workerNodes.length<this.minSize||this.workerNodes.length>=this.minSize&&this.workerNodes.some((e=>!e.info.ready))}get ready(){return this.workerNodes.length>=this.minSize&&this.workerNodes.every((e=>e.info.ready))}get utilization(){const e=(r.performance.now()-this.startTimestamp)*this.maxSize;return(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)+this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0))/e}getWorkerById(e){return this.workerNodes.find((t=>t.info.id===e))?.worker}checkMessageWorkerId(e){if(null!=e.workerId&&null==this.getWorkerById(e.workerId))throw new Error(`Worker message received from unknown worker '${e.workerId}'`)}getWorkerNodeKey(e){return this.workerNodes.findIndex((t=>t.worker===e))}setWorkerChoiceStrategy(e,t){this.checkValidWorkerChoiceStrategy(e),this.opts.workerChoiceStrategy=e,this.workerChoiceStrategyContext.setWorkerChoiceStrategy(this.opts.workerChoiceStrategy),null!=t&&this.setWorkerChoiceStrategyOptions(t);for(const e of this.workerNodes)e.resetUsage(),this.setWorkerStatistics(e.worker)}setWorkerChoiceStrategyOptions(e){this.checkValidWorkerChoiceStrategyOptions(e),this.opts.workerChoiceStrategyOptions=e,this.workerChoiceStrategyContext.setOptions(this.opts.workerChoiceStrategyOptions)}enableTasksQueue(e,t){!0!==this.opts.enableTasksQueue||e||this.flushTasksQueues(),this.opts.enableTasksQueue=e,this.setTasksQueueOptions(t)}setTasksQueueOptions(e){!0===this.opts.enableTasksQueue?(this.checkValidTasksQueueOptions(e),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e)):null!=this.opts.tasksQueueOptions&&delete this.opts.tasksQueueOptions}buildTasksQueueOptions(e){return{concurrency:e?.concurrency??1}}get full(){return this.workerNodes.length>=this.maxSize}internalBusy(){return-1===this.workerNodes.findIndex((e=>0===e.usage.tasks.executing))}async execute(e,t){const i=r.performance.now(),o=this.chooseWorkerNode(),a={name:t??d,data:e??{},timestamp:i,workerId:this.getWorkerInfo(o).id,id:s.randomUUID()},n=new Promise(((e,t)=>{this.promiseResponseMap.set(a.id,{resolve:e,reject:t,worker:this.workerNodes[o].worker})}));return!0===this.opts.enableTasksQueue&&(this.busy||this.workerNodes[o].usage.tasks.executing>=this.opts.tasksQueueOptions.concurrency)?this.enqueueTask(o,a):this.executeTask(o,a),this.checkAndEmitEvents(),n}async destroy(){await Promise.all(this.workerNodes.map((async(e,t)=>{this.flushTasksQueue(t);const s=new Promise((t=>{e.worker.on("exit",(()=>{t()}))}));await this.destroyWorker(e.worker),await s})))}setupHook(){}beforeTaskExecutionHook(e,t){const s=this.workerNodes[e].usage;++s.tasks.executing,this.updateWaitTimeWorkerUsage(s,t);const r=this.workerNodes[e].getTaskWorkerUsage(t.name);++r.tasks.executing,this.updateWaitTimeWorkerUsage(r,t)}afterTaskExecutionHook(e,t){const s=this.getWorkerNodeKey(e),r=this.workerNodes[s].usage;this.updateTaskStatisticsWorkerUsage(r,t),this.updateRunTimeWorkerUsage(r,t),this.updateEluWorkerUsage(r,t);const i=this.workerNodes[s].getTaskWorkerUsage(t.taskPerformance?.name??d);this.updateTaskStatisticsWorkerUsage(i,t),this.updateRunTimeWorkerUsage(i,t),this.updateEluWorkerUsage(i,t)}updateTaskStatisticsWorkerUsage(e,t){const s=e.tasks;--s.executing,null==t.taskError?++s.executed:++s.failed}updateRunTimeWorkerUsage(e,t){if(this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate){const s=t.taskPerformance?.runTime??0;e.runTime.aggregate=(e.runTime.aggregate??0)+s,e.runTime.minimum=Math.min(s,e.runTime?.minimum??1/0),e.runTime.maximum=Math.max(s,e.runTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.average&&0!==e.tasks.executed&&(e.runTime.average=e.runTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&null!=t.taskPerformance?.runTime&&(e.runTime.history.push(t.taskPerformance.runTime),e.runTime.median=p(e.runTime.history))}}updateWaitTimeWorkerUsage(e,t){const s=r.performance.now(),i=s-(t.timestamp??s);this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&(e.waitTime.aggregate=(e.waitTime?.aggregate??0)+i,e.waitTime.minimum=Math.min(i,e.waitTime?.minimum??1/0),e.waitTime.maximum=Math.max(i,e.waitTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.average&&0!==e.tasks.executed&&(e.waitTime.average=e.waitTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&(e.waitTime.history.push(i),e.waitTime.median=p(e.waitTime.history)))}updateEluWorkerUsage(e,t){this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate&&null!=t.taskPerformance?.elu&&(e.elu.idle.aggregate=(e.elu.idle?.aggregate??0)+t.taskPerformance.elu.idle,e.elu.active.aggregate=(e.elu.active?.aggregate??0)+t.taskPerformance.elu.active,null!=e.elu.utilization?e.elu.utilization=(e.elu.utilization+t.taskPerformance.elu.utilization)/2:e.elu.utilization=t.taskPerformance.elu.utilization,e.elu.idle.minimum=Math.min(t.taskPerformance.elu.idle,e.elu.idle?.minimum??1/0),e.elu.idle.maximum=Math.max(t.taskPerformance.elu.idle,e.elu.idle?.maximum??-1/0),e.elu.active.minimum=Math.min(t.taskPerformance.elu.active,e.elu.active?.minimum??1/0),e.elu.active.maximum=Math.max(t.taskPerformance.elu.active,e.elu.active?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.average&&0!==e.tasks.executed&&(e.elu.idle.average=e.elu.idle.aggregate/e.tasks.executed,e.elu.active.average=e.elu.active.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.median&&(e.elu.idle.history.push(t.taskPerformance.elu.idle),e.elu.active.history.push(t.taskPerformance.elu.active),e.elu.idle.median=p(e.elu.idle.history),e.elu.active.median=p(e.elu.active.history)))}chooseWorkerNode(){if(this.shallCreateDynamicWorker()){const e=this.createAndSetupDynamicWorker();if(this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker)return this.getWorkerNodeKey(e)}return this.workerChoiceStrategyContext.execute()}shallCreateDynamicWorker(){return this.type===h.dynamic&&!this.full&&this.internalBusy()}registerWorkerMessageListener(e,t){e.on("message",t)}afterWorkerSetup(e){this.registerWorkerMessageListener(e,this.workerListener()),this.sendToWorker(e,{ready:!1,workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id}),this.setWorkerStatistics(e)}createAndSetupWorker(){const e=this.createWorker();return e.on("message",this.opts.messageHandler??m),e.on("error",this.opts.errorHandler??m),e.on("error",(t=>{null!=this.emitter&&this.emitter.emit(c.error,t),!0===this.opts.enableTasksQueue&&this.redistributeQueuedTasks(e),!0!==this.opts.restartWorkerOnError||this.starting||(this.getWorkerInfo(this.getWorkerNodeKey(e)).dynamic?this.createAndSetupDynamicWorker():this.createAndSetupWorker())})),e.on("online",this.opts.onlineHandler??m),e.on("exit",this.opts.exitHandler??m),e.once("exit",(()=>{this.removeWorkerNode(e)})),this.pushWorkerNode(e),this.afterWorkerSetup(e),e}redistributeQueuedTasks(e){const t=this.getWorkerNodeKey(e);for(;this.tasksQueueSize(t)>0;){let e=t,s=1/0;for(const[r,i]of this.workerNodes.entries()){if(r!==t&&0===i.usage.tasks.queued){e=r;break}r!==t&&i.usage.tasks.queued<s&&(s=i.usage.tasks.queued,e=r)}this.enqueueTask(e,this.dequeueTask(t))}}createAndSetupDynamicWorker(){const e=this.createAndSetupWorker();this.registerWorkerMessageListener(e,(t=>{const s=this.getWorkerNodeKey(e);var r;r=f.HARD,(t.kill===r||null!=t.kill&&(!1===this.opts.enableTasksQueue&&0===this.workerNodes[s].usage.tasks.executing||!0===this.opts.enableTasksQueue&&0===this.workerNodes[s].usage.tasks.executing&&0===this.tasksQueueSize(s)))&&this.destroyWorker(e)}));const t=this.getWorkerInfo(this.getWorkerNodeKey(e));return t.dynamic=!0,this.sendToWorker(e,{checkAlive:!0,workerId:t.id}),e}workerListener(){return e=>{this.checkMessageWorkerId(e),null!=e.ready&&null!=e.workerId?this.handleWorkerReadyMessage(e):null!=e.id&&this.handleTaskExecutionResponse(e)}}handleWorkerReadyMessage(e){const t=this.getWorkerById(e.workerId);this.getWorkerInfo(this.getWorkerNodeKey(t)).ready=e.ready,null!=this.emitter&&this.ready&&this.emitter.emit(c.ready,this.info)}handleTaskExecutionResponse(e){const t=this.promiseResponseMap.get(e.id);if(null!=t){null!=e.taskError?(null!=this.emitter&&this.emitter.emit(c.taskError,e.taskError),t.reject(e.taskError.message)):t.resolve(e.data),this.afterTaskExecutionHook(t.worker,e),this.promiseResponseMap.delete(e.id);const s=this.getWorkerNodeKey(t.worker);!0===this.opts.enableTasksQueue&&this.tasksQueueSize(s)>0&&this.executeTask(s,this.dequeueTask(s)),this.workerChoiceStrategyContext.update(s)}}checkAndEmitEvents(){null!=this.emitter&&(this.busy&&this.emitter.emit(c.busy,this.info),this.type===h.dynamic&&this.full&&this.emitter.emit(c.full,this.info))}getWorkerInfo(e){return this.workerNodes[e].info}pushWorkerNode(e){return this.workerNodes.push(new M(e,this.worker))}removeWorkerNode(e){const t=this.getWorkerNodeKey(e);-1!==t&&(this.workerNodes.splice(t,1),this.workerChoiceStrategyContext.remove(t))}executeTask(e,t){this.beforeTaskExecutionHook(e,t),this.sendToWorker(this.workerNodes[e].worker,t)}enqueueTask(e,t){return this.workerNodes[e].enqueueTask(t)}dequeueTask(e){return this.workerNodes[e].dequeueTask()}tasksQueueSize(e){return this.workerNodes[e].tasksQueueSize()}flushTasksQueue(e){for(;this.tasksQueueSize(e)>0;)this.executeTask(e,this.dequeueTask(e));this.workerNodes[e].clearTasksQueue()}flushTasksQueues(){for(const[e]of this.workerNodes.entries())this.flushTasksQueue(e)}setWorkerStatistics(e){this.sendToWorker(e,{statistics:{runTime:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate,elu:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate},workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id})}}class A extends P{opts;constructor(e,t,s={}){super(e,t,s),this.opts=s}setupHook(){t.setupPrimary({...this.opts.settings,exec:this.filePath})}isMain(){return t.isPrimary}destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.id}),e.on("disconnect",(()=>{e.kill()})),e.disconnect()}sendToWorker(e,t){e.send(t)}createWorker(){return t.fork(this.opts.env)}get type(){return h.fixed}get worker(){return q.cluster}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}class Q extends P{opts;constructor(e,t,s={}){super(e,t,s),this.opts=s}isMain(){return o.isMainThread}async destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.threadId}),await e.terminate()}sendToWorker(e,t){e.postMessage(t)}createWorker(){return new o.Worker(this.filePath,{env:o.SHARE_ENV,...this.opts.workerOptions})}get type(){return h.fixed}get worker(){return q.thread}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}const U=6e4,D=f.SOFT;class F extends a.AsyncResource{isMain;mainWorker;opts;taskFunctions;lastTaskTimestamp;statistics;aliveInterval;constructor(e,t,s,r,i={killBehavior:D,maxInactiveTime:U}){super(e),this.isMain=t,this.mainWorker=r,this.opts=i,this.checkWorkerOptions(this.opts),this.checkTaskFunctions(s),this.isMain||this.mainWorker?.on("message",this.messageListener.bind(this))}checkWorkerOptions(e){this.opts.killBehavior=e.killBehavior??D,this.opts.maxInactiveTime=e.maxInactiveTime??U,delete this.opts.async}checkTaskFunctions(e){if(null==e)throw new Error("taskFunctions parameter is mandatory");if(this.taskFunctions=new Map,"function"==typeof e)this.taskFunctions.set(d,e.bind(this));else{if(!T(e))throw new TypeError("taskFunctions parameter is not a function or a plain object");{let t=!0;for(const[s,r]of Object.entries(e)){if("string"!=typeof s)throw new TypeError("A taskFunctions parameter object key is not a string");if("function"!=typeof r)throw new TypeError("A taskFunctions parameter object value is not a function");this.taskFunctions.set(s,r.bind(this)),t&&(this.taskFunctions.set(d,r.bind(this)),t=!1)}if(t)throw new Error("taskFunctions parameter object is empty")}}}hasTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");return this.taskFunctions.has(e)}addTaskFunction(e,t){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===d)throw new Error("Cannot add a task function with the default reserved name");if("function"!=typeof t)throw new TypeError("fn parameter is not a function");try{return this.taskFunctions.get(e)===this.taskFunctions.get(d)&&this.taskFunctions.set(d,t.bind(this)),this.taskFunctions.set(e,t.bind(this)),!0}catch{return!1}}removeTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===d)throw new Error("Cannot remove the task function with the default reserved name");if(this.taskFunctions.get(e)===this.taskFunctions.get(d))throw new Error("Cannot remove the task function used as the default task function");return this.taskFunctions.delete(e)}setDefaultTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===d)throw new Error("Cannot set the default task function reserved name as the default task function");if(!this.taskFunctions.has(e))throw new Error("Cannot set the default task function to a non-existing task function");try{return this.taskFunctions.set(d,this.taskFunctions.get(e)?.bind(this)),!0}catch{return!1}}messageListener(e){e.workerId===this.id&&(null!=e.ready?this.workerReady():null!=e.statistics?this.statistics=e.statistics:null!=e.checkAlive?e.checkAlive?this.startCheckAlive():this.stopCheckAlive():null!=e.id&&null!=e.data?this.run(e):!0===e.kill&&(this.stopCheckAlive(),this.emitDestroy()))}workerReady(){!this.isMain&&this.sendToMainWorker({ready:!0,workerId:this.id})}startCheckAlive(){this.lastTaskTimestamp=r.performance.now(),this.aliveInterval=setInterval(this.checkAlive.bind(this),(this.opts.maxInactiveTime??U)/2),this.checkAlive.bind(this)()}stopCheckAlive(){null!=this.aliveInterval&&clearInterval(this.aliveInterval)}checkAlive(){r.performance.now()-this.lastTaskTimestamp>(this.opts.maxInactiveTime??U)&&this.sendToMainWorker({kill:this.opts.killBehavior,workerId:this.id})}getMainWorker(){if(null==this.mainWorker)throw new Error("Main worker not set");return this.mainWorker}handleError(e){return e instanceof Error?e.message:e}run(e){const t=this.getTaskFunction(e.name);(e=>"function"==typeof e&&"AsyncFunction"===e.constructor.name)(t)?this.runInAsyncScope(this.runAsync.bind(this),this,t,e):this.runInAsyncScope(this.runSync.bind(this),this,t,e)}runSync(e,t){try{let s=this.beginTaskPerformance(t.name);const r=e(t.data);s=this.endTaskPerformance(s),this.sendToMainWorker({data:r,taskPerformance:s,workerId:this.id,id:t.id})}catch(e){const s=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??d,message:s,data:t.data},workerId:this.id,id:t.id})}finally{this.isMain||null==this.aliveInterval||(this.lastTaskTimestamp=r.performance.now())}}runAsync(e,t){let s=this.beginTaskPerformance(t.name);e(t.data).then((e=>(s=this.endTaskPerformance(s),this.sendToMainWorker({data:e,taskPerformance:s,workerId:this.id,id:t.id}),null))).catch((e=>{const s=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??d,message:s,data:t.data},workerId:this.id,id:t.id})})).finally((()=>{this.isMain||null==this.aliveInterval||(this.lastTaskTimestamp=r.performance.now())})).catch(m)}getTaskFunction(e){e=e??d;const t=this.taskFunctions.get(e);if(null==t)throw new Error(`Task function '${e}' not found`);return t}beginTaskPerformance(e){return this.checkStatistics(),{name:e??d,timestamp:r.performance.now(),...this.statistics.elu&&{elu:r.performance.eventLoopUtilization()}}}endTaskPerformance(e){return this.checkStatistics(),{...e,...this.statistics.runTime&&{runTime:r.performance.now()-e.timestamp},...this.statistics.elu&&{elu:r.performance.eventLoopUtilization(e.elu)}}}checkStatistics(){if(null==this.statistics)throw new Error("Performance statistics computation requirements not set")}}exports.ClusterWorker=class extends F{constructor(e,s={}){super("worker-cluster-pool:poolifier",t.isPrimary,e,t.worker,s)}get id(){return this.getMainWorker().id}sendToMainWorker(e){this.getMainWorker().send(e)}},exports.DynamicClusterPool=class extends A{max;constructor(e,t,s,r={}){super(e,s,r),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return h.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.DynamicThreadPool=class extends Q{max;constructor(e,t,s,r={}){super(e,s,r),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return h.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.FixedClusterPool=A,exports.FixedThreadPool=Q,exports.KillBehaviors=f,exports.Measurements=W,exports.PoolEvents=c,exports.PoolTypes=h,exports.ThreadWorker=class extends F{constructor(e,t={}){super("worker-thread-pool:poolifier",o.isMainThread,e,o.parentPort,t)}get id(){return o.threadId}sendToMainWorker(e){this.getMainWorker().postMessage(e)}handleError(e){return e}},exports.WorkerChoiceStrategies=y,exports.WorkerTypes=q,exports.availableParallelism=()=>{let e=1;try{e=u.availableParallelism()}catch{const t=u.cpus();Array.isArray(t)&&t.length>0&&(e=t.length)}return e};
+"use strict";var e=require("node:events"),t=require("node:cluster"),r=require("node:crypto"),s=require("node:perf_hooks"),i=require("node:fs"),o=require("node:os"),a=require("node:worker_threads"),n=require("node:async_hooks");function u(e){var t=Object.create(null);return e&&Object.keys(e).forEach((function(r){if("default"!==r){var s=Object.getOwnPropertyDescriptor(e,r);Object.defineProperty(t,r,s.get?s:{enumerable:!0,get:function(){return e[r]}})}})),t.default=e,Object.freeze(t)}var h=u(o);const k=Object.freeze({fixed:"fixed",dynamic:"dynamic"});class c extends e.EventEmitter{}const d=Object.freeze({full:"full",ready:"ready",busy:"busy",error:"error",taskError:"taskError"}),m="default",l=Object.freeze((()=>{})),g={runTime:{median:!1},waitTime:{median:!1},elu:{median:!1}},p={aggregate:!1,average:!1,median:!1},w=e=>{if(Array.isArray(e)&&0===e.length)return 0;if(Array.isArray(e)&&1===e.length)return e[0];const t=e.slice().sort(((e,t)=>e-t));return(t[t.length-1>>1]+t[t.length>>1])/2},y=(e,t=2)=>{const r=Math.pow(10,t);return Math.round(e*r*(1+Number.EPSILON))/r},T=e=>"object"==typeof e&&null!==e&&e?.constructor===Object&&"[object Object]"===Object.prototype.toString.call(e),f=Object.freeze({SOFT:"SOFT",HARD:"HARD"}),W=Object.freeze({ROUND_ROBIN:"ROUND_ROBIN",LEAST_USED:"LEAST_USED",LEAST_BUSY:"LEAST_BUSY",LEAST_ELU:"LEAST_ELU",FAIR_SHARE:"FAIR_SHARE",WEIGHTED_ROUND_ROBIN:"WEIGHTED_ROUND_ROBIN",INTERLEAVED_WEIGHTED_ROUND_ROBIN:"INTERLEAVED_WEIGHTED_ROUND_ROBIN"}),x=Object.freeze({runTime:"runTime",waitTime:"waitTime",elu:"elu"});class S{pool;opts;nextWorkerNodeKey=0;strategyPolicy={useDynamicWorker:!1};taskStatisticsRequirements={runTime:p,waitTime:p,elu:p};constructor(e,t=g){this.pool=e,this.opts=t,this.choose=this.choose.bind(this)}setTaskStatisticsRequirements(e){this.taskStatisticsRequirements.runTime.average&&!0===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!1,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.runTime.median&&!1===e.runTime?.median&&(this.taskStatisticsRequirements.runTime.average=!0,this.taskStatisticsRequirements.runTime.median=e.runTime.median),this.taskStatisticsRequirements.waitTime.average&&!0===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!1,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.waitTime.median&&!1===e.waitTime?.median&&(this.taskStatisticsRequirements.waitTime.average=!0,this.taskStatisticsRequirements.waitTime.median=e.waitTime.median),this.taskStatisticsRequirements.elu.average&&!0===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!1,this.taskStatisticsRequirements.elu.median=e.elu.median),this.taskStatisticsRequirements.elu.median&&!1===e.elu?.median&&(this.taskStatisticsRequirements.elu.average=!0,this.taskStatisticsRequirements.elu.median=e.elu.median)}setOptions(e){this.opts=e??g,this.setTaskStatisticsRequirements(this.opts)}isWorkerNodeReady(e){return this.pool.workerNodes[e].info.ready}getWorkerTaskRunTime(e){return this.taskStatisticsRequirements.runTime.median?this.pool.workerNodes[e].usage.runTime?.median??0:this.pool.workerNodes[e].usage.runTime?.average??0}getWorkerTaskWaitTime(e){return this.taskStatisticsRequirements.waitTime.median?this.pool.workerNodes[e].usage.waitTime?.median??0:this.pool.workerNodes[e].usage.waitTime?.average??0}getWorkerTaskElu(e){return this.taskStatisticsRequirements.elu.median?this.pool.workerNodes[e].usage.elu.active?.median??0:this.pool.workerNodes[e].usage.elu.active?.average??0}computeDefaultWorkerWeight(){let e=0;for(const t of o.cpus()){const r=t.speed.toString().length-1;e+=1/(t.speed/Math.pow(10,r))*Math.pow(10,r)}return Math.round(e/o.cpus().length)}}class N extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:p,elu:{aggregate:!0,average:!0,median:!1}};workersVirtualTaskEndTimestamp=[];constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.workersVirtualTaskEndTimestamp=[],!0}update(e){return this.computeWorkerVirtualTaskEndTimestamp(e),!0}choose(){return this.fairShareNextWorkerNodeKey()}remove(e){return this.workersVirtualTaskEndTimestamp.splice(e,1),!0}fairShareNextWorkerNodeKey(){let e=1/0;for(const[t]of this.pool.workerNodes.entries()){null==this.workersVirtualTaskEndTimestamp[t]&&this.computeWorkerVirtualTaskEndTimestamp(t);const r=this.workersVirtualTaskEndTimestamp[t];this.isWorkerNodeReady(t)&&r<e&&(e=r,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}computeWorkerVirtualTaskEndTimestamp(e){this.workersVirtualTaskEndTimestamp[e]=this.getWorkerVirtualTaskEndTimestamp(e,this.getWorkerVirtualTaskStartTimestamp(e))}getWorkerVirtualTaskEndTimestamp(e,t){return t+(this.opts.measurement===x.elu?this.getWorkerTaskElu(e):this.getWorkerTaskRunTime(e))}getWorkerVirtualTaskStartTimestamp(e){return Math.max(performance.now(),this.workersVirtualTaskEndTimestamp[e]??-1/0)}}class v extends S{strategyPolicy={useDynamicWorker:!0};roundId=0;roundWeights;defaultWorkerWeight;constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight(),this.roundWeights=this.getRoundWeights()}reset(){return this.nextWorkerNodeKey=0,this.roundId=0,!0}update(){return!0}choose(){let e,t;for(let r=this.roundId;r<this.roundWeights.length;r++)for(let s=this.nextWorkerNodeKey;s<this.pool.workerNodes.length;s++){const i=this.opts.weights?.[s]??this.defaultWorkerWeight;if(this.isWorkerNodeReady(s)&&i>=this.roundWeights[r]){e=r,t=s;break}}this.roundId=e??0,this.nextWorkerNodeKey=t??0;const r=this.nextWorkerNodeKey;return this.nextWorkerNodeKey===this.pool.workerNodes.length-1?(this.nextWorkerNodeKey=0,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1):this.nextWorkerNodeKey=this.nextWorkerNodeKey+1,r}remove(e){return this.nextWorkerNodeKey===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeKey=0:this.nextWorkerNodeKey>this.pool.workerNodes.length-1&&(this.nextWorkerNodeKey=this.pool.workerNodes.length-1,this.roundId=this.roundId===this.roundWeights.length-1?0:this.roundId+1)),!0}setOptions(e){super.setOptions(e),this.roundWeights=this.getRoundWeights()}getRoundWeights(){return null==this.opts.weights?[this.defaultWorkerWeight]:[...new Set(Object.values(this.opts.weights).slice().sort(((e,t)=>e-t)))]}}class R extends S{taskStatisticsRequirements={runTime:{aggregate:!0,average:!1,median:!1},waitTime:{aggregate:!0,average:!1,median:!1},elu:p};constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){return this.leastBusyNextWorkerNodeKey()}remove(){return!0}leastBusyNextWorkerNodeKey(){let e=1/0;for(const[t,r]of this.pool.workerNodes.entries()){const s=(r.usage.runTime?.aggregate??0)+(r.usage.waitTime?.aggregate??0);if(this.isWorkerNodeReady(t)&&0===s){this.nextWorkerNodeKey=t;break}this.isWorkerNodeReady(t)&&s<e&&(e=s,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}}class E extends S{constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){return this.leastUsedNextWorkerNodeKey()}remove(){return!0}leastUsedNextWorkerNodeKey(){let e=1/0;for(const[t,r]of this.pool.workerNodes.entries()){const s=r.usage.tasks,i=s.executed+s.executing+s.queued;if(this.isWorkerNodeReady(t)&&0===i){this.nextWorkerNodeKey=t;break}this.isWorkerNodeReady(t)&&i<e&&(e=i,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}}class b extends S{taskStatisticsRequirements={runTime:p,waitTime:p,elu:{aggregate:!0,average:!1,median:!1}};constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return!0}update(){return!0}choose(){return this.leastEluNextWorkerNodeKey()}remove(){return!0}leastEluNextWorkerNodeKey(){let e=1/0;for(const[t,r]of this.pool.workerNodes.entries()){const s=r.usage,i=s.elu?.active?.aggregate??0;if(this.isWorkerNodeReady(t)&&0===i){this.nextWorkerNodeKey=t;break}this.isWorkerNodeReady(t)&&i<e&&(e=i,this.nextWorkerNodeKey=t)}return this.nextWorkerNodeKey}}class C extends S{strategyPolicy={useDynamicWorker:!0};constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts)}reset(){return this.nextWorkerNodeKey=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeKey;do{this.roundRobinNextWorkerNodeKey()}while(!this.isWorkerNodeReady(this.nextWorkerNodeKey));return e}remove(e){return this.nextWorkerNodeKey===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeKey=0:this.nextWorkerNodeKey>this.pool.workerNodes.length-1&&(this.nextWorkerNodeKey=this.pool.workerNodes.length-1)),!0}roundRobinNextWorkerNodeKey(){return this.nextWorkerNodeKey=this.nextWorkerNodeKey===this.pool.workerNodes.length-1?0:this.nextWorkerNodeKey+1,this.nextWorkerNodeKey}}class I extends S{strategyPolicy={useDynamicWorker:!0};taskStatisticsRequirements={runTime:{aggregate:!0,average:!0,median:!1},waitTime:p,elu:p};defaultWorkerWeight;workerVirtualTaskRunTime=0;constructor(e,t=g){super(e,t),this.setTaskStatisticsRequirements(this.opts),this.defaultWorkerWeight=this.computeDefaultWorkerWeight()}reset(){return this.nextWorkerNodeKey=0,this.workerVirtualTaskRunTime=0,!0}update(){return!0}choose(){const e=this.nextWorkerNodeKey;do{this.weightedRoundRobinNextWorkerNodeKey()}while(!this.isWorkerNodeReady(this.nextWorkerNodeKey));return e}remove(e){return this.nextWorkerNodeKey===e&&(0===this.pool.workerNodes.length?this.nextWorkerNodeKey=0:this.nextWorkerNodeKey>this.pool.workerNodes.length-1&&(this.nextWorkerNodeKey=this.pool.workerNodes.length-1),this.workerVirtualTaskRunTime=0),!0}weightedRoundRobinNextWorkerNodeKey(){const e=this.workerVirtualTaskRunTime;return e<(this.opts.weights?.[this.nextWorkerNodeKey]??this.defaultWorkerWeight)?this.workerVirtualTaskRunTime=e+this.getWorkerTaskRunTime(this.nextWorkerNodeKey):(this.nextWorkerNodeKey=this.nextWorkerNodeKey===this.pool.workerNodes.length-1?0:this.nextWorkerNodeKey+1,this.workerVirtualTaskRunTime=0),this.nextWorkerNodeKey}}class O{workerChoiceStrategy;workerChoiceStrategies;constructor(e,t=W.ROUND_ROBIN,r=g){this.workerChoiceStrategy=t,this.execute=this.execute.bind(this),this.workerChoiceStrategies=new Map([[W.ROUND_ROBIN,new(C.bind(this))(e,r)],[W.LEAST_USED,new(E.bind(this))(e,r)],[W.LEAST_BUSY,new(R.bind(this))(e,r)],[W.LEAST_ELU,new(b.bind(this))(e,r)],[W.FAIR_SHARE,new(N.bind(this))(e,r)],[W.WEIGHTED_ROUND_ROBIN,new(I.bind(this))(e,r)],[W.INTERLEAVED_WEIGHTED_ROUND_ROBIN,new(v.bind(this))(e,r)]])}getStrategyPolicy(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).strategyPolicy}getTaskStatisticsRequirements(){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).taskStatisticsRequirements}setWorkerChoiceStrategy(e){this.workerChoiceStrategy!==e&&(this.workerChoiceStrategy=e),this.workerChoiceStrategies.get(this.workerChoiceStrategy)?.reset()}update(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).update(e)}execute(){const e=this.workerChoiceStrategies.get(this.workerChoiceStrategy).choose();if(null==e)throw new Error("Worker node key chosen is null or undefined");return e}remove(e){return this.workerChoiceStrategies.get(this.workerChoiceStrategy).remove(e)}setOptions(e){for(const t of this.workerChoiceStrategies.values())t.setOptions(e)}}class q extends Array{size;constructor(e=1024,...t){super(),this.checkSize(e),this.size=e,arguments.length>1&&this.push(...t)}push(...e){const t=super.push(...e);return t>this.size&&super.splice(0,t-this.size),this.length}unshift(...e){return super.unshift(...e)>this.size&&super.splice(this.size,e.length),this.length}concat(...e){const t=super.concat(e);return t.size=this.size,t.length>t.size&&t.splice(0,t.length-t.size),t}splice(e,t,...r){let s;return arguments.length>=3&&void 0!==t?(s=super.splice(e,t),this.push(...r)):s=2===arguments.length?super.splice(e,t):super.splice(e),s}resize(e){if(this.checkSize(e),0===e)this.length=0;else if(e<this.size)for(let t=e;t<this.size;t++)super.pop();this.size=e}empty(){return 0===this.length}full(){return this.length===this.size}checkSize(e){if(!Number.isSafeInteger(e))throw new TypeError(`Invalid circular array size: ${e} is not a safe integer`);if(e<0)throw new RangeError(`Invalid circular array size: ${e} < 0`)}}class z{items;offset;size;maxSize;constructor(){this.clear()}enqueue(e){return this.items.push(e),++this.size,this.size>this.maxSize&&(this.maxSize=this.size),this.size}dequeue(){if(this.size<=0)return;const e=this.items[this.offset];return 2*++this.offset>=this.items.length&&(this.items=this.items.slice(this.offset),this.offset=0),--this.size,e}peek(){if(!(this.size<=0))return this.items[this.offset]}clear(){this.items=[],this.offset=0,this.size=0,this.maxSize=0}[Symbol.iterator](){const e=this.items;let t=this.offset;return{next:()=>{if(t>=e.length)return{value:void 0,done:!0};const r=e[t];return++t,{value:r,done:!1}}}}}const K=Object.freeze({cluster:"cluster",thread:"thread"});class P{worker;info;usage;tasksUsage;tasksQueue;constructor(e,t){this.worker=e,this.info=this.initWorkerInfo(e,t),this.usage=this.initWorkerUsage(),this.tasksUsage=new Map,this.tasksQueue=new z}tasksQueueSize(){return this.tasksQueue.size}tasksQueueMaxSize(){return this.tasksQueue.maxSize}enqueueTask(e){return this.tasksQueue.enqueue(e)}dequeueTask(){return this.tasksQueue.dequeue()}clearTasksQueue(){this.tasksQueue.clear()}resetUsage(){this.usage=this.initWorkerUsage(),this.tasksUsage.clear()}getTaskWorkerUsage(e){return this.tasksUsage.has(e)||this.tasksUsage.set(e,this.initTaskWorkerUsage(e)),this.tasksUsage.get(e)}initWorkerInfo(e,t){return{id:this.getWorkerId(e,t),type:t,dynamic:!1,ready:!1}}initWorkerUsage(){const e=()=>this.tasksQueueSize(),t=()=>this.tasksQueueMaxSize();return{tasks:{executed:0,executing:0,get queued(){return e()},get maxQueued(){return t()},failed:0},runTime:{history:new q},waitTime:{history:new q},elu:{idle:{history:new q},active:{history:new q}}}}initTaskWorkerUsage(e){const t=()=>{let t=0;for(const r of this.tasksQueue)r.name===e&&++t;return t};return{tasks:{executed:0,executing:0,get queued(){return t()},failed:0},runTime:{history:new q},waitTime:{history:new q},elu:{idle:{history:new q},active:{history:new q}}}}getWorkerId(e,t){return t===K.thread?e.threadId:t===K.cluster?e.id:void 0}}class M{numberOfWorkers;filePath;opts;workerNodes=[];emitter;promiseResponseMap=new Map;workerChoiceStrategyContext;startTimestamp;constructor(e,t,r){if(this.numberOfWorkers=e,this.filePath=t,this.opts=r,!this.isMain())throw new Error("Cannot start a pool from a worker!");for(this.checkNumberOfWorkers(this.numberOfWorkers),this.checkFilePath(this.filePath),this.checkPoolOptions(this.opts),this.chooseWorkerNode=this.chooseWorkerNode.bind(this),this.executeTask=this.executeTask.bind(this),this.enqueueTask=this.enqueueTask.bind(this),this.checkAndEmitEvents=this.checkAndEmitEvents.bind(this),!0===this.opts.enableEvents&&(this.emitter=new c),this.workerChoiceStrategyContext=new O(this,this.opts.workerChoiceStrategy,this.opts.workerChoiceStrategyOptions),this.setupHook();this.workerNodes.reduce(((e,t)=>t.info.dynamic?e:e+1),0)<this.numberOfWorkers;)this.createAndSetupWorker();this.startTimestamp=s.performance.now()}checkFilePath(e){if(null==e||"string"!=typeof e||"string"==typeof e&&0===e.trim().length)throw new Error("Please specify a file with a worker implementation");if(!i.existsSync(e))throw new Error(`Cannot find the worker file '${e}'`)}checkNumberOfWorkers(e){if(null==e)throw new Error("Cannot instantiate a pool without specifying the number of workers");if(!Number.isSafeInteger(e))throw new TypeError("Cannot instantiate a pool with a non safe integer number of workers");if(e<0)throw new RangeError("Cannot instantiate a pool with a negative number of workers");if(this.type===k.fixed&&0===e)throw new RangeError("Cannot instantiate a fixed pool with zero worker")}checkDynamicPoolSize(e,t){if(this.type===k.dynamic){if(e>t)throw new RangeError("Cannot instantiate a dynamic pool with a maximum pool size inferior to the minimum pool size");if(0===t)throw new RangeError("Cannot instantiate a dynamic pool with a pool size equal to zero");if(e===t)throw new RangeError("Cannot instantiate a dynamic pool with a minimum pool size equal to the maximum pool size. Use a fixed pool instead")}}checkPoolOptions(e){if(!T(e))throw new TypeError("Invalid pool options: must be a plain object");this.opts.workerChoiceStrategy=e.workerChoiceStrategy??W.ROUND_ROBIN,this.checkValidWorkerChoiceStrategy(this.opts.workerChoiceStrategy),this.opts.workerChoiceStrategyOptions=e.workerChoiceStrategyOptions??g,this.checkValidWorkerChoiceStrategyOptions(this.opts.workerChoiceStrategyOptions),this.opts.restartWorkerOnError=e.restartWorkerOnError??!0,this.opts.enableEvents=e.enableEvents??!0,this.opts.enableTasksQueue=e.enableTasksQueue??!1,this.opts.enableTasksQueue&&(this.checkValidTasksQueueOptions(e.tasksQueueOptions),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e.tasksQueueOptions))}checkValidWorkerChoiceStrategy(e){if(!Object.values(W).includes(e))throw new Error(`Invalid worker choice strategy '${e}'`)}checkValidWorkerChoiceStrategyOptions(e){if(!T(e))throw new TypeError("Invalid worker choice strategy options: must be a plain object");if(null!=e.weights&&Object.keys(e.weights).length!==this.maxSize)throw new Error("Invalid worker choice strategy options: must have a weight for each worker node");if(null!=e.measurement&&!Object.values(x).includes(e.measurement))throw new Error(`Invalid worker choice strategy options: invalid measurement '${e.measurement}'`)}checkValidTasksQueueOptions(e){if(null!=e&&!T(e))throw new TypeError("Invalid tasks queue options: must be a plain object");if(null!=e?.concurrency&&!Number.isSafeInteger(e.concurrency))throw new TypeError("Invalid worker tasks concurrency: must be an integer");if(null!=e?.concurrency&&e.concurrency<=0)throw new Error(`Invalid worker tasks concurrency '${e.concurrency}'`)}get info(){return{version:"2.6.15",type:this.type,worker:this.worker,ready:this.ready,strategy:this.opts.workerChoiceStrategy,minSize:this.minSize,maxSize:this.maxSize,...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{utilization:y(this.utilization)},workerNodes:this.workerNodes.length,idleWorkerNodes:this.workerNodes.reduce(((e,t)=>0===t.usage.tasks.executing?e+1:e),0),busyWorkerNodes:this.workerNodes.reduce(((e,t)=>t.usage.tasks.executing>0?e+1:e),0),executedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executed),0),executingTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.executing),0),queuedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.queued),0),maxQueuedTasks:this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.maxQueued??0)),0),failedTasks:this.workerNodes.reduce(((e,t)=>e+t.usage.tasks.failed),0),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate&&{runTime:{minimum:y(Math.min(...this.workerNodes.map((e=>e.usage.runTime?.minimum??1/0)))),maximum:y(Math.max(...this.workerNodes.map((e=>e.usage.runTime?.maximum??-1/0)))),average:y(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&{median:y(w(this.workerNodes.map((e=>e.usage.runTime?.median??0))))}}},...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&{waitTime:{minimum:y(Math.min(...this.workerNodes.map((e=>e.usage.waitTime?.minimum??1/0)))),maximum:y(Math.max(...this.workerNodes.map((e=>e.usage.waitTime?.maximum??-1/0)))),average:y(this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0)/this.workerNodes.reduce(((e,t)=>e+(t.usage.tasks?.executed??0)),0)),...this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&{median:y(w(this.workerNodes.map((e=>e.usage.waitTime?.median??0))))}}}}}get starting(){return this.workerNodes.reduce(((e,t)=>t.info.dynamic?e:e+1),0)<this.minSize}get ready(){return this.workerNodes.reduce(((e,t)=>!t.info.dynamic&&t.info.ready?e+1:e),0)>=this.minSize}get utilization(){const e=(s.performance.now()-this.startTimestamp)*this.maxSize;return(this.workerNodes.reduce(((e,t)=>e+(t.usage.runTime?.aggregate??0)),0)+this.workerNodes.reduce(((e,t)=>e+(t.usage.waitTime?.aggregate??0)),0))/e}getWorkerById(e){return this.workerNodes.find((t=>t.info.id===e))?.worker}checkMessageWorkerId(e){if(null!=e.workerId&&null==this.getWorkerById(e.workerId))throw new Error(`Worker message received from unknown worker '${e.workerId}'`)}getWorkerNodeKey(e){return this.workerNodes.findIndex((t=>t.worker===e))}setWorkerChoiceStrategy(e,t){this.checkValidWorkerChoiceStrategy(e),this.opts.workerChoiceStrategy=e,this.workerChoiceStrategyContext.setWorkerChoiceStrategy(this.opts.workerChoiceStrategy),null!=t&&this.setWorkerChoiceStrategyOptions(t);for(const e of this.workerNodes)e.resetUsage(),this.setWorkerStatistics(e.worker)}setWorkerChoiceStrategyOptions(e){this.checkValidWorkerChoiceStrategyOptions(e),this.opts.workerChoiceStrategyOptions=e,this.workerChoiceStrategyContext.setOptions(this.opts.workerChoiceStrategyOptions)}enableTasksQueue(e,t){!0!==this.opts.enableTasksQueue||e||this.flushTasksQueues(),this.opts.enableTasksQueue=e,this.setTasksQueueOptions(t)}setTasksQueueOptions(e){!0===this.opts.enableTasksQueue?(this.checkValidTasksQueueOptions(e),this.opts.tasksQueueOptions=this.buildTasksQueueOptions(e)):null!=this.opts.tasksQueueOptions&&delete this.opts.tasksQueueOptions}buildTasksQueueOptions(e){return{concurrency:e?.concurrency??1}}get full(){return this.workerNodes.length>=this.maxSize}internalBusy(){return-1===this.workerNodes.findIndex((e=>0===e.usage.tasks.executing))}async execute(e,t){const i=s.performance.now(),o=this.chooseWorkerNode(),a={name:t??m,data:e??{},timestamp:i,workerId:this.getWorkerInfo(o).id,id:r.randomUUID()},n=new Promise(((e,t)=>{this.promiseResponseMap.set(a.id,{resolve:e,reject:t,worker:this.workerNodes[o].worker})}));return!0===this.opts.enableTasksQueue&&(this.busy||this.workerNodes[o].usage.tasks.executing>=this.opts.tasksQueueOptions.concurrency)?this.enqueueTask(o,a):this.executeTask(o,a),this.checkAndEmitEvents(),n}async destroy(){await Promise.all(this.workerNodes.map((async(e,t)=>{this.flushTasksQueue(t);const r=new Promise((t=>{e.worker.on("exit",(()=>{t()}))}));await this.destroyWorker(e.worker),await r})))}setupHook(){}beforeTaskExecutionHook(e,t){const r=this.workerNodes[e].usage;++r.tasks.executing,this.updateWaitTimeWorkerUsage(r,t);const s=this.workerNodes[e].getTaskWorkerUsage(t.name);++s.tasks.executing,this.updateWaitTimeWorkerUsage(s,t)}afterTaskExecutionHook(e,t){const r=this.getWorkerNodeKey(e),s=this.workerNodes[r].usage;this.updateTaskStatisticsWorkerUsage(s,t),this.updateRunTimeWorkerUsage(s,t),this.updateEluWorkerUsage(s,t);const i=this.workerNodes[r].getTaskWorkerUsage(t.taskPerformance?.name??m);this.updateTaskStatisticsWorkerUsage(i,t),this.updateRunTimeWorkerUsage(i,t),this.updateEluWorkerUsage(i,t)}updateTaskStatisticsWorkerUsage(e,t){const r=e.tasks;--r.executing,null==t.taskError?++r.executed:++r.failed}updateRunTimeWorkerUsage(e,t){if(this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate){const r=t.taskPerformance?.runTime??0;e.runTime.aggregate=(e.runTime.aggregate??0)+r,e.runTime.minimum=Math.min(r,e.runTime?.minimum??1/0),e.runTime.maximum=Math.max(r,e.runTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.average&&0!==e.tasks.executed&&(e.runTime.average=e.runTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.median&&null!=t.taskPerformance?.runTime&&(e.runTime.history.push(t.taskPerformance.runTime),e.runTime.median=w(e.runTime.history))}}updateWaitTimeWorkerUsage(e,t){const r=s.performance.now(),i=r-(t.timestamp??r);this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.aggregate&&(e.waitTime.aggregate=(e.waitTime?.aggregate??0)+i,e.waitTime.minimum=Math.min(i,e.waitTime?.minimum??1/0),e.waitTime.maximum=Math.max(i,e.waitTime?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.average&&0!==e.tasks.executed&&(e.waitTime.average=e.waitTime.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime.median&&(e.waitTime.history.push(i),e.waitTime.median=w(e.waitTime.history)))}updateEluWorkerUsage(e,t){this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate&&null!=t.taskPerformance?.elu&&(e.elu.idle.aggregate=(e.elu.idle?.aggregate??0)+t.taskPerformance.elu.idle,e.elu.active.aggregate=(e.elu.active?.aggregate??0)+t.taskPerformance.elu.active,null!=e.elu.utilization?e.elu.utilization=(e.elu.utilization+t.taskPerformance.elu.utilization)/2:e.elu.utilization=t.taskPerformance.elu.utilization,e.elu.idle.minimum=Math.min(t.taskPerformance.elu.idle,e.elu.idle?.minimum??1/0),e.elu.idle.maximum=Math.max(t.taskPerformance.elu.idle,e.elu.idle?.maximum??-1/0),e.elu.active.minimum=Math.min(t.taskPerformance.elu.active,e.elu.active?.minimum??1/0),e.elu.active.maximum=Math.max(t.taskPerformance.elu.active,e.elu.active?.maximum??-1/0),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.average&&0!==e.tasks.executed&&(e.elu.idle.average=e.elu.idle.aggregate/e.tasks.executed,e.elu.active.average=e.elu.active.aggregate/e.tasks.executed),this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.median&&(e.elu.idle.history.push(t.taskPerformance.elu.idle),e.elu.active.history.push(t.taskPerformance.elu.active),e.elu.idle.median=w(e.elu.idle.history),e.elu.active.median=w(e.elu.active.history)))}chooseWorkerNode(){if(this.shallCreateDynamicWorker()){const e=this.createAndSetupDynamicWorker();if(this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker)return this.getWorkerNodeKey(e)}return this.workerChoiceStrategyContext.execute()}shallCreateDynamicWorker(){return this.type===k.dynamic&&!this.full&&this.internalBusy()}createAndSetupWorker(){const e=this.createWorker();return e.on("message",this.opts.messageHandler??l),e.on("error",this.opts.errorHandler??l),e.on("error",(t=>{const r=this.getWorkerNodeKey(e),s=this.getWorkerInfo(r);s.ready=!1,null!=this.emitter&&this.emitter.emit(d.error,t),!0!==this.opts.restartWorkerOnError||this.starting||(s.dynamic?this.createAndSetupDynamicWorker():this.createAndSetupWorker()),!0===this.opts.enableTasksQueue&&this.redistributeQueuedTasks(r)})),e.on("online",this.opts.onlineHandler??l),e.on("exit",this.opts.exitHandler??l),e.once("exit",(()=>{this.removeWorkerNode(e)})),this.addWorkerNode(e),this.afterWorkerSetup(e),e}createAndSetupDynamicWorker(){const e=this.createAndSetupWorker();this.registerWorkerMessageListener(e,(t=>{const r=this.getWorkerNodeKey(e);var s;s=f.HARD,(t.kill===s||null!=t.kill&&(!1===this.opts.enableTasksQueue&&0===this.workerNodes[r].usage.tasks.executing||!0===this.opts.enableTasksQueue&&0===this.workerNodes[r].usage.tasks.executing&&0===this.tasksQueueSize(r)))&&this.destroyWorker(e)}));const t=this.getWorkerInfo(this.getWorkerNodeKey(e));return t.dynamic=!0,this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker&&(t.ready=!0),this.sendToWorker(e,{checkActive:!0,workerId:t.id}),e}registerWorkerMessageListener(e,t){e.on("message",t)}afterWorkerSetup(e){this.registerWorkerMessageListener(e,this.workerListener()),this.sendWorkerStartupMessage(e),this.setWorkerStatistics(e)}sendWorkerStartupMessage(e){this.sendToWorker(e,{ready:!1,workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id})}redistributeQueuedTasks(e){for(;this.tasksQueueSize(e)>0;){let t=e,r=1/0;for(const[s,i]of this.workerNodes.entries()){const o=this.getWorkerInfo(s);if(s!==e&&o.ready&&0===i.usage.tasks.queued){t=s;break}s!==e&&o.ready&&i.usage.tasks.queued<r&&(r=i.usage.tasks.queued,t=s)}this.enqueueTask(t,this.dequeueTask(e))}}workerListener(){return e=>{this.checkMessageWorkerId(e),null!=e.ready?this.handleWorkerReadyResponse(e):null!=e.id&&this.handleTaskExecutionResponse(e)}}handleWorkerReadyResponse(e){const t=this.getWorkerById(e.workerId);this.getWorkerInfo(this.getWorkerNodeKey(t)).ready=e.ready,null!=this.emitter&&this.ready&&this.emitter.emit(d.ready,this.info)}handleTaskExecutionResponse(e){const t=this.promiseResponseMap.get(e.id);if(null!=t){null!=e.taskError?(null!=this.emitter&&this.emitter.emit(d.taskError,e.taskError),t.reject(e.taskError.message)):t.resolve(e.data),this.afterTaskExecutionHook(t.worker,e),this.promiseResponseMap.delete(e.id);const r=this.getWorkerNodeKey(t.worker);!0===this.opts.enableTasksQueue&&this.tasksQueueSize(r)>0&&this.executeTask(r,this.dequeueTask(r)),this.workerChoiceStrategyContext.update(r)}}checkAndEmitEvents(){null!=this.emitter&&(this.busy&&this.emitter.emit(d.busy,this.info),this.type===k.dynamic&&this.full&&this.emitter.emit(d.full,this.info))}getWorkerInfo(e){return this.workerNodes[e].info}addWorkerNode(e){const t=new P(e,this.worker);return this.starting&&(t.info.ready=!0),this.workerNodes.push(t)}removeWorkerNode(e){const t=this.getWorkerNodeKey(e);-1!==t&&(this.workerNodes.splice(t,1),this.workerChoiceStrategyContext.remove(t))}executeTask(e,t){this.beforeTaskExecutionHook(e,t),this.sendToWorker(this.workerNodes[e].worker,t)}enqueueTask(e,t){return this.workerNodes[e].enqueueTask(t)}dequeueTask(e){return this.workerNodes[e].dequeueTask()}tasksQueueSize(e){return this.workerNodes[e].tasksQueueSize()}flushTasksQueue(e){for(;this.tasksQueueSize(e)>0;)this.executeTask(e,this.dequeueTask(e));this.workerNodes[e].clearTasksQueue()}flushTasksQueues(){for(const[e]of this.workerNodes.entries())this.flushTasksQueue(e)}setWorkerStatistics(e){this.sendToWorker(e,{statistics:{runTime:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime.aggregate,elu:this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu.aggregate},workerId:this.getWorkerInfo(this.getWorkerNodeKey(e)).id})}}class A extends M{opts;constructor(e,t,r={}){super(e,t,r),this.opts=r}setupHook(){t.setupPrimary({...this.opts.settings,exec:this.filePath})}isMain(){return t.isPrimary}destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.id}),e.on("disconnect",(()=>{e.kill()})),e.disconnect()}sendToWorker(e,t){e.send(t)}createWorker(){return t.fork(this.opts.env)}get type(){return k.fixed}get worker(){return K.cluster}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}class Q extends M{opts;constructor(e,t,r={}){super(e,t,r),this.opts=r}isMain(){return a.isMainThread}async destroyWorker(e){this.sendToWorker(e,{kill:!0,workerId:e.threadId}),await e.terminate()}sendToWorker(e,t){e.postMessage(t)}createWorker(){return new a.Worker(this.filePath,{env:a.SHARE_ENV,...this.opts.workerOptions})}get type(){return k.fixed}get worker(){return K.thread}get minSize(){return this.numberOfWorkers}get maxSize(){return this.numberOfWorkers}get busy(){return this.internalBusy()}}const U=6e4,D=f.SOFT;class F extends n.AsyncResource{isMain;mainWorker;opts;taskFunctions;lastTaskTimestamp;statistics;activeInterval;constructor(e,t,r,s,i={killBehavior:D,maxInactiveTime:U}){super(e),this.isMain=t,this.mainWorker=s,this.opts=i,this.checkWorkerOptions(this.opts),this.checkTaskFunctions(r),this.isMain||this.mainWorker?.on("message",this.messageListener.bind(this))}checkWorkerOptions(e){this.opts.killBehavior=e.killBehavior??D,this.opts.maxInactiveTime=e.maxInactiveTime??U,delete this.opts.async}checkTaskFunctions(e){if(null==e)throw new Error("taskFunctions parameter is mandatory");if(this.taskFunctions=new Map,"function"==typeof e)this.taskFunctions.set(m,e.bind(this));else{if(!T(e))throw new TypeError("taskFunctions parameter is not a function or a plain object");{let t=!0;for(const[r,s]of Object.entries(e)){if("string"!=typeof r)throw new TypeError("A taskFunctions parameter object key is not a string");if("function"!=typeof s)throw new TypeError("A taskFunctions parameter object value is not a function");this.taskFunctions.set(r,s.bind(this)),t&&(this.taskFunctions.set(m,s.bind(this)),t=!1)}if(t)throw new Error("taskFunctions parameter object is empty")}}}hasTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");return this.taskFunctions.has(e)}addTaskFunction(e,t){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===m)throw new Error("Cannot add a task function with the default reserved name");if("function"!=typeof t)throw new TypeError("fn parameter is not a function");try{return this.taskFunctions.get(e)===this.taskFunctions.get(m)&&this.taskFunctions.set(m,t.bind(this)),this.taskFunctions.set(e,t.bind(this)),!0}catch{return!1}}removeTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===m)throw new Error("Cannot remove the task function with the default reserved name");if(this.taskFunctions.get(e)===this.taskFunctions.get(m))throw new Error("Cannot remove the task function used as the default task function");return this.taskFunctions.delete(e)}setDefaultTaskFunction(e){if("string"!=typeof e)throw new TypeError("name parameter is not a string");if(e===m)throw new Error("Cannot set the default task function reserved name as the default task function");if(!this.taskFunctions.has(e))throw new Error("Cannot set the default task function to a non-existing task function");try{return this.taskFunctions.set(m,this.taskFunctions.get(e)?.bind(this)),!0}catch{return!1}}messageListener(e){e.workerId===this.id&&(null!=e.ready?this.sendReadyResponse():null!=e.statistics?this.statistics=e.statistics:null!=e.checkActive?e.checkActive?this.startCheckActive():this.stopCheckActive():null!=e.id&&null!=e.data?this.run(e):!0===e.kill&&(this.stopCheckActive(),this.emitDestroy()))}sendReadyResponse(){!this.isMain&&this.sendToMainWorker({ready:!0,workerId:this.id})}startCheckActive(){this.lastTaskTimestamp=s.performance.now(),this.activeInterval=setInterval(this.checkActive.bind(this),(this.opts.maxInactiveTime??U)/2)}stopCheckActive(){null!=this.activeInterval&&clearInterval(this.activeInterval)}checkActive(){s.performance.now()-this.lastTaskTimestamp>(this.opts.maxInactiveTime??U)&&this.sendToMainWorker({kill:this.opts.killBehavior,workerId:this.id})}getMainWorker(){if(null==this.mainWorker)throw new Error("Main worker not set");return this.mainWorker}handleError(e){return e instanceof Error?e.message:e}run(e){const t=this.getTaskFunction(e.name);(e=>"function"==typeof e&&"AsyncFunction"===e.constructor.name)(t)?this.runInAsyncScope(this.runAsync.bind(this),this,t,e):this.runInAsyncScope(this.runSync.bind(this),this,t,e)}runSync(e,t){try{let r=this.beginTaskPerformance(t.name);const s=e(t.data);r=this.endTaskPerformance(r),this.sendToMainWorker({data:s,taskPerformance:r,workerId:this.id,id:t.id})}catch(e){const r=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??m,message:r,data:t.data},workerId:this.id,id:t.id})}finally{this.isMain||null==this.activeInterval||(this.lastTaskTimestamp=s.performance.now())}}runAsync(e,t){let r=this.beginTaskPerformance(t.name);e(t.data).then((e=>(r=this.endTaskPerformance(r),this.sendToMainWorker({data:e,taskPerformance:r,workerId:this.id,id:t.id}),null))).catch((e=>{const r=this.handleError(e);this.sendToMainWorker({taskError:{name:t.name??m,message:r,data:t.data},workerId:this.id,id:t.id})})).finally((()=>{this.isMain||null==this.activeInterval||(this.lastTaskTimestamp=s.performance.now())})).catch(l)}getTaskFunction(e){e=e??m;const t=this.taskFunctions.get(e);if(null==t)throw new Error(`Task function '${e}' not found`);return t}beginTaskPerformance(e){return this.checkStatistics(),{name:e??m,timestamp:s.performance.now(),...this.statistics.elu&&{elu:s.performance.eventLoopUtilization()}}}endTaskPerformance(e){return this.checkStatistics(),{...e,...this.statistics.runTime&&{runTime:s.performance.now()-e.timestamp},...this.statistics.elu&&{elu:s.performance.eventLoopUtilization(e.elu)}}}checkStatistics(){if(null==this.statistics)throw new Error("Performance statistics computation requirements not set")}}exports.ClusterWorker=class extends F{constructor(e,r={}){super("worker-cluster-pool:poolifier",t.isPrimary,e,t.worker,r)}get id(){return this.getMainWorker().id}sendToMainWorker(e){this.getMainWorker().send(e)}},exports.DynamicClusterPool=class extends A{max;constructor(e,t,r,s={}){super(e,r,s),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return k.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.DynamicThreadPool=class extends Q{max;constructor(e,t,r,s={}){super(e,r,s),this.max=t,this.checkDynamicPoolSize(this.numberOfWorkers,this.max)}get type(){return k.dynamic}get maxSize(){return this.max}get busy(){return this.full&&this.internalBusy()}},exports.FixedClusterPool=A,exports.FixedThreadPool=Q,exports.KillBehaviors=f,exports.Measurements=x,exports.PoolEvents=d,exports.PoolTypes=k,exports.ThreadWorker=class extends F{constructor(e,t={}){super("worker-thread-pool:poolifier",a.isMainThread,e,a.parentPort,t)}get id(){return a.threadId}sendToMainWorker(e){this.getMainWorker().postMessage(e)}handleError(e){return e}},exports.WorkerChoiceStrategies=W,exports.WorkerTypes=K,exports.availableParallelism=()=>{let e=1;try{e=h.availableParallelism()}catch{const t=h.cpus();Array.isArray(t)&&t.length>0&&(e=t.length)}return e};

lib/pools/abstract-pool.d.ts

@@ -88,2 +88,8 @@ import type { MessageValue, PromiseResponseWrapper, Task } from '../utility-types';
     private getWorkerById;
+    /**
+     * Checks if the worker id sent in the received message from a worker is valid.
+     *
+     * @param message - The received message.
+     * @throws {@link https://nodejs.org/api/errors.html#class-error} If the worker id is invalid.
+     */
     private checkMessageWorkerId;
@@ -187,9 +193,2 @@ /**
     /**
-     * Registers a listener callback on the given worker.
-     *
-     * @param worker - The worker which should register a listener.
-     * @param listener - The message listener callback.
-     */
-    private registerWorkerMessageListener;
-    /**
      * Creates a new worker.
@@ -201,9 +200,2 @@ *
     /**
-     * Function that can be hooked up when a worker has been newly created and moved to the pool worker nodes.
-     * Can be overridden.
-     *
-     * @param worker - The newly created worker.
-     */
-    protected afterWorkerSetup(worker: Worker): void;
-    /**
      * Creates a new worker and sets it up completely in the pool worker nodes.
@@ -214,3 +206,2 @@ *
     protected createAndSetupWorker(): Worker;
-    private redistributeQueuedTasks;
     /**
@@ -223,2 +214,18 @@ * Creates a new dynamic worker and sets it up completely in the pool worker nodes.
     /**
+     * Registers a listener callback on the given worker.
+     *
+     * @param worker - The worker which should register a listener.
+     * @param listener - The message listener callback.
+     */
+    private registerWorkerMessageListener;
+    /**
+     * Function that can be hooked up when a worker has been newly created and moved to the pool worker nodes.
+     * Can be overridden.
+     *
+     * @param worker - The newly created worker.
+     */
+    protected afterWorkerSetup(worker: Worker): void;
+    private sendWorkerStartupMessage;
+    private redistributeQueuedTasks;
+    /**
      * This function is the listener registered for each worker message.
@@ -229,3 +236,3 @@ *
     protected workerListener(): (message: MessageValue<Response>) => void;
-    private handleWorkerReadyMessage;
+    private handleWorkerReadyResponse;
     private handleTaskExecutionResponse;
@@ -240,3 +247,3 @@ private checkAndEmitEvents;
     /**
-     * Pushes the given worker in the pool worker nodes.
+     * Adds the given worker in the pool worker nodes.
      *
@@ -246,3 +253,3 @@ * @param worker - The worker.
      */
-    private pushWorkerNode;
+    private addWorkerNode;
     /**
@@ -254,2 +261,8 @@ * Removes the given worker from the pool worker nodes.
     private removeWorkerNode;
+    /**
+     * Executes the given task on the given worker.
+     *
+     * @param worker - The worker.
+     * @param task - The task to execute.
+     */
     private executeTask;
@@ -256,0 +269,0 @@ private enqueueTask;

lib/pools/selection-strategies/abstract-worker-choice-strategy.d.ts

@@ -15,5 +15,5 @@ import type { IPool } from '../pool';
     /**
-     * Id of the next worker node.
+     * The next worker node key.
      */
-    protected nextWorkerNodeId: number;
+    protected nextWorkerNodeKey: number;
     /** @inheritDoc */
@@ -41,2 +41,3 @@ readonly strategyPolicy: StrategyPolicy;
     setOptions(opts: WorkerChoiceStrategyOptions): void;
+    protected isWorkerNodeReady(workerNodeKey: number): boolean;
     /**
@@ -43,0 +44,0 @@ * Gets the worker task runtime.

lib/pools/selection-strategies/fair-share-worker-choice-strategy.d.ts

@@ -30,2 +30,3 @@ import type { IPool } from '../pool';
     remove(workerNodeKey: number): boolean;
+    private fairShareNextWorkerNodeKey;
     /**
@@ -32,0 +33,0 @@ * Computes the worker node key virtual task end timestamp.

lib/pools/selection-strategies/least-busy-worker-choice-strategy.d.ts

@@ -25,2 +25,3 @@ import type { IPool } from '../pool';
     remove(): boolean;
+    private leastBusyNextWorkerNodeKey;
 }

lib/pools/selection-strategies/least-elu-worker-choice-strategy.d.ts

@@ -25,2 +25,3 @@ import type { IPool } from '../pool';
     remove(): boolean;
+    private leastEluNextWorkerNodeKey;
 }

lib/pools/selection-strategies/least-used-worker-choice-strategy.d.ts

@@ -23,2 +23,3 @@ import type { IPool } from '../pool';
     remove(): boolean;
+    private leastUsedNextWorkerNodeKey;
 }

lib/pools/selection-strategies/round-robin-worker-choice-strategy.d.ts

@@ -25,2 +25,3 @@ import type { IPool } from '../pool';
     remove(workerNodeKey: number): boolean;
+    private roundRobinNextWorkerNodeKey;
 }

lib/pools/selection-strategies/selection-strategies-types.d.ts

@@ -142,3 +142,3 @@ /**
     /**
-     * Expects direct usage of dynamic worker.
+     * Expects direct usage of the newly created dynamic worker.
      */
@@ -145,0 +145,0 @@ readonly useDynamicWorker: boolean;

lib/pools/selection-strategies/weighted-round-robin-worker-choice-strategy.d.ts

@@ -36,2 +36,3 @@ import type { IWorker } from '../worker';
     remove(workerNodeKey: number): boolean;
+    private weightedRoundRobinNextWorkerNodeKey;
 }

lib/pools/version.d.ts

@@ -1,1 +0,1 @@
-export declare const version = "2.6.14";
+export declare const version = "2.6.15";

lib/pools/worker.d.ts

@@ -216,5 +216,5 @@ import type { CircularArray } from '../circular-array';
     /**
-     * Gets task usage statistics.
+     * Gets task worker usage statistics.
      */
     readonly getTaskWorkerUsage: (name: string) => WorkerUsage | undefined;
 }

lib/utility-types.d.ts

@@ -113,5 +113,5 @@ /// <reference types="node" />
     /**
-     * Whether the worker starts or stops its aliveness check.
+     * Whether the worker starts or stops its activity check.
      */
-    readonly checkAlive?: boolean;
+    readonly checkActive?: boolean;
 }
@@ -129,7 +129,7 @@ /**
      */
-    readonly resolve: (value: Response) => void;
+    readonly resolve: (value: Response | PromiseLike<Response>) => void;
     /**
      * Reject callback to reject the promise.
      */
-    readonly reject: (reason?: string) => void;
+    readonly reject: (reason?: unknown) => void;
     /**
@@ -136,0 +136,0 @@ * The worker handling the execution.

lib/worker/abstract-worker.d.ts

@@ -39,5 +39,5 @@ /// <reference types="node" />
     /**
-     * Handler id of the `aliveInterval` worker alive check.
+     * Handler id of the `activeInterval` worker activity check.
      */
-    protected aliveInterval?: NodeJS.Timeout;
+    protected activeInterval?: NodeJS.Timeout;
     /**
@@ -103,21 +103,21 @@ * Constructs a new poolifier worker.
      *
-     * @param message - Message received.
+     * @param message - The received message.
      */
     protected messageListener(message: MessageValue<Data, Data>): void;
     /**
-     * Notifies the main worker that this worker is ready to process tasks.
+     * Sends to the main worker the ready response.
      */
-    protected workerReady(): void;
+    protected sendReadyResponse(): void;
     /**
-     * Starts the worker alive check interval.
+     * Starts the worker check active interval.
      */
-    private startCheckAlive;
+    private startCheckActive;
     /**
-     * Stops the worker alive check interval.
+     * Stops the worker check active interval.
      */
-    private stopCheckAlive;
+    private stopCheckActive;
     /**
      * Checks if the worker should be terminated, because its living too long.
      */
-    private checkAlive;
+    private checkActive;
     /**
@@ -124,0 +124,0 @@ * Returns the main worker.

lib/worker/worker-options.d.ts

@@ -23,9 +23,9 @@ /**
     /**
-     * Maximum waiting time in milliseconds for tasks.
+     * Maximum waiting time in milliseconds for tasks on newly created workers.
      *
      * After this time, newly created workers will be terminated.
-     * The last active time of your worker unit will be updated when a task is submitted to a worker or when a worker terminate a task.
+     * The last active time of your worker will be updated when it terminates a task.
      *
      * - If `killBehavior` is set to `KillBehaviors.HARD` this value represents also the timeout for the tasks that you submit to the pool,
-     *   when this timeout expires your tasks is interrupted and the worker is killed if is not part of the minimum size of the pool.
+     *   when this timeout expires your tasks is interrupted before completion and removed. The worker is killed if is not part of the minimum size of the pool.
      * - If `killBehavior` is set to `KillBehaviors.SOFT` your tasks have no timeout and your workers will not be terminated until your task is completed.
@@ -44,3 +44,3 @@ *
     /**
-     * `killBehavior` dictates if your async unit (worker/process) will be deleted in case that a task is active on it.
+     * `killBehavior` dictates if your worker will be deleted in case a task is active on it.
      *
@@ -47,0 +47,0 @@ * - SOFT: If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still executing or queued, then the worker **won't** be deleted.

package.json

 {
   "name": "poolifier",
-  "version": "2.6.14",
+  "version": "2.6.15",
   "description": "A fast, easy to use Node.js Worker Thread Pool and Cluster Pool implementation",
@@ -29,3 +29,3 @@ "license": "MIT",
     "node": "20.4.0",
-    "pnpm": "8.6.6"
+    "pnpm": "8.6.7"
   },
@@ -85,8 +85,8 @@ "repository": {
     "@release-it/bumper": "^5.0.0",
-    "@release-it/keep-a-changelog": "^3.1.0",
+    "@release-it/keep-a-changelog": "^4.0.0",
     "@rollup/plugin-terser": "^0.4.3",
     "@rollup/plugin-typescript": "^11.1.2",
     "@types/node": "^20.4.1",
-    "@typescript-eslint/eslint-plugin": "^5.61.0",
-    "@typescript-eslint/parser": "^5.61.0",
+    "@typescript-eslint/eslint-plugin": "^5.62.0",
+    "@typescript-eslint/parser": "^5.62.0",
     "benny": "^3.7.1",
@@ -93,0 +93,0 @@ "c8": "^8.0.0",

README.md

@@ -247,4 +247,4 @@ <div align="center">
 
-- `maxInactiveTime` (optional) - Max time to wait tasks to work on in milliseconds, after this period the new worker will die.  
-  The last active time of your worker unit will be updated when a task is submitted to a worker or when a worker terminate a task.  
+- `maxInactiveTime` (optional) - Maximum waiting time in milliseconds for tasks on newly created workers. After this time newly created workers will die.  
+  The last active time of your worker will be updated when it terminates a task.  
   If `killBehavior` is set to `KillBehaviors.HARD` this value represents also the timeout for the tasks that you submit to the pool, when this timeout expires your tasks is interrupted before completion and removed. The worker is killed if is not part of the minimum size of the pool.  
@@ -254,3 +254,3 @@ If `killBehavior` is set to `KillBehaviors.SOFT` your tasks have no timeout and your workers will not be terminated until your task is completed.
 
-- `killBehavior` (optional) - Dictates if your async unit (worker/process) will be deleted in case that a task is active on it.  
+- `killBehavior` (optional) - Dictates if your worker will be deleted in case a task is active on it.  
   **KillBehaviors.SOFT**: If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still executing or queued, then the worker **won't** be deleted.  
@@ -257,0 +257,0 @@ **KillBehaviors.HARD**: If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still executing or queued, then the worker will be deleted.

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212652

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Lines of code

2512

increased by1.41%

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