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/var/www/uibuilder.cmshelp.dk/httpdocs/node_modules/three/examples/jsm/utils/WorkerPool.js

Text Base64

/**
 * @author Deepkolos / https://github.com/deepkolos
 */

export class WorkerPool {

constructor( pool = 4 ) {

this.pool = pool;
		this.queue = [];
		this.workers = [];
		this.workersResolve = [];
		this.workerStatus = 0;

}

_initWorker( workerId ) {

if ( ! this.workers[ workerId ] ) {

const worker = this.workerCreator();
			worker.addEventListener( 'message', this._onMessage.bind( this, workerId ) );
			this.workers[ workerId ] = worker;

}

_getIdleWorker() {

for ( let i = 0; i < this.pool; i ++ )
			if ( ! ( this.workerStatus & ( 1 << i ) ) ) return i;

return - 1;

}

_onMessage( workerId, msg ) {

const resolve = this.workersResolve[ workerId ];
		resolve && resolve( msg );

if ( this.queue.length ) {

const { resolve, msg, transfer } = this.queue.shift();
			this.workersResolve[ workerId ] = resolve;
			this.workers[ workerId ].postMessage( msg, transfer );

} else {

this.workerStatus ^= 1 << workerId;

}

setWorkerCreator( workerCreator ) {

this.workerCreator = workerCreator;

}

setWorkerLimit( pool ) {

this.pool = pool;

}

postMessage( msg, transfer ) {

return new Promise( ( resolve ) => {

const workerId = this._getIdleWorker();

if ( workerId !== - 1 ) {

this._initWorker( workerId );
				this.workerStatus |= 1 << workerId;
				this.workersResolve[ workerId ] = resolve;
				this.workers[ workerId ].postMessage( msg, transfer );

} else {

this.queue.push( { resolve, msg, transfer } );

}

} );

}

dispose() {

this.workers.forEach( ( worker ) => worker.terminate() );
		this.workersResolve.length = 0;
		this.workers.length = 0;
		this.queue.length = 0;
		this.workerStatus = 0;

}

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WebGPUTextureUtils.js	1.53 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive
WorkerPool.js	1.67 KB	lrw-r--r--	2025-03-28 11:04:39	Edit Download recursive recursive

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