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