69 lines
1.6 KiB
JavaScript
69 lines
1.6 KiB
JavaScript
/*TRANSPILED*/goog.loadModule(function(exports) {'use strict';/*
|
|
|
|
Copyright The Closure Library Authors.
|
|
SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
'use strict';
|
|
goog.module("goog.async.WorkQueue");
|
|
goog.module.declareLegacyNamespace();
|
|
const FreeList = goog.require("goog.async.FreeList");
|
|
const {assert} = goog.require("goog.asserts");
|
|
class WorkQueue {
|
|
constructor() {
|
|
this.workHead_ = null;
|
|
this.workTail_ = null;
|
|
}
|
|
add(fn, scope) {
|
|
const item = this.getUnusedItem_();
|
|
item.set(fn, scope);
|
|
if (this.workTail_) {
|
|
this.workTail_.next = item;
|
|
this.workTail_ = item;
|
|
} else {
|
|
assert(!this.workHead_);
|
|
this.workHead_ = item;
|
|
this.workTail_ = item;
|
|
}
|
|
}
|
|
remove() {
|
|
let item = null;
|
|
if (this.workHead_) {
|
|
item = this.workHead_;
|
|
this.workHead_ = this.workHead_.next;
|
|
if (!this.workHead_) {
|
|
this.workTail_ = null;
|
|
}
|
|
item.next = null;
|
|
}
|
|
return item;
|
|
}
|
|
returnUnused(item) {
|
|
WorkQueue.freelist_.put(item);
|
|
}
|
|
getUnusedItem_() {
|
|
return WorkQueue.freelist_.get();
|
|
}
|
|
}
|
|
WorkQueue.DEFAULT_MAX_UNUSED = goog.define("goog.async.WorkQueue.DEFAULT_MAX_UNUSED", 100);
|
|
WorkQueue.freelist_ = new FreeList(() => new WorkItem(), item => item.reset(), WorkQueue.DEFAULT_MAX_UNUSED);
|
|
class WorkItem {
|
|
constructor() {
|
|
this.fn = null;
|
|
this.scope = null;
|
|
this.next = null;
|
|
}
|
|
set(fn, scope) {
|
|
this.fn = fn;
|
|
this.scope = scope;
|
|
this.next = null;
|
|
}
|
|
reset() {
|
|
this.fn = null;
|
|
this.scope = null;
|
|
this.next = null;
|
|
}
|
|
}
|
|
exports = WorkQueue;
|
|
|
|
;return exports;});
|