23 строки
621 B
JavaScript
23 строки
621 B
JavaScript
// This is a free list to avoid creating so many of the same object.
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exports.FreeList = function(name, max, constructor) {
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this.name = name;
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this.constructor = constructor;
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this.max = max;
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this.list = [];
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}
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exports.FreeList.prototype.alloc = function () {
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//debug("alloc " + this.name + " " + this.list.length);
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return this.list.length ? this.list.shift()
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: this.constructor.apply(this, arguments);
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};
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exports.FreeList.prototype.free = function (obj) {
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//debug("free " + this.name + " " + this.list.length);
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if (this.list.length < this.max) {
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this.list.push(obj);
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}
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};
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