simple and effective object / worker / connection pool implimentation in javascript

thepool.js

function PoolFactory() {
	
	var createPool = function (options) {
		
		var wrkrs = [], freeWrkrs = [],
			opts = options || {},
			wCnt = options.maxWorkers || 4,
			wrkrPth = options.path || 'whateveryouwant.js';
		
		var wp = function () {
			
			for (var i = 0; i < wCnt; ++i) {
				var w = new Worker(pth);
				workers.push(w);
				freeWrkrs.push(w);
			}

			// get a ready worker
			function getWrkr() {
				if (freeWrkrs.length === 0) {
					throw new error('No workers left!');
				}
				return freeWrkrs.pop();
			};

			// put back worker
			function freeUpWrkr(worker) {
				freeWrkrs.push(worker);
			};

			// kill'em all, then yourself
			function dispoz() {
				var i = 0,
					self = this,
					cnt = workers.length;
				
				function exMe() {
					workers.forEach(function (w) {
						w.terminate();
						i++;
						if (i >= cnt) {
							return kill();
						}
					});
					
					function kill() {
						return (self = null);
					};
				};
				
				return exMe();
			};

			this.enlist = get;
			this.dispose = dispoz;
			this.release = freeUpWrkr;
		};

		return wp;
	}

	this.create = createPool;
}