lib: refactor internal/freelist
PR-URL: https://github.com/nodejs/node/pull/11406 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com>
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@ -1,24 +1,25 @@
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'use strict';
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'use strict';
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// This is a free list to avoid creating so many of the same object.
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class FreeList {
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exports.FreeList = function(name, max, constructor) {
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constructor(name, max, ctor) {
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this.name = name;
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this.name = name;
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this.constructor = constructor;
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this.ctor = ctor;
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this.max = max;
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this.max = max;
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this.list = [];
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this.list = [];
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};
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exports.FreeList.prototype.alloc = function() {
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return this.list.length ? this.list.pop() :
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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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if (this.list.length < this.max) {
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this.list.push(obj);
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return true;
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}
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}
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return false;
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};
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alloc() {
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return this.list.length ? this.list.pop() :
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this.ctor.apply(this, arguments);
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}
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free(obj) {
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if (this.list.length < this.max) {
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this.list.push(obj);
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return true;
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}
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return false;
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}
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}
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module.exports = {FreeList};
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