b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
61 lines
1.5 KiB
JavaScript
Executable file
61 lines
1.5 KiB
JavaScript
Executable file
'use strict';
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(function(exports) {
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var AsyncSemaphore = function as_contructor() {
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if (!(this instanceof AsyncSemaphore)) {
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return new AsyncSemaphore();
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}
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this._init();
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};
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// Do not call '_init' and '_execute' directly from outside of AsyncSemaphore
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AsyncSemaphore.prototype = {
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_init: function as_init() {
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// Please don't modify these value directly from outside of AsyncSemaphore
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this.pendingTasks = [];
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this.semaphore = 0;
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},
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_execute: function as_execute() {
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var task,
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context;
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if (this.semaphore <= 0) {
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while (this.pendingTasks.length > 0) {
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task = this.pendingTasks.shift();
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context = task.context || this;
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if (task && task.callback && typeof task.callback === 'function') {
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task.callback.call(context, task.args);
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}
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}
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}
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},
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v: function as_v(num) {
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if (!num) {
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num = 1;
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}
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this.semaphore += num;
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},
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p: function as_p() {
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this.semaphore -= 1;
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if (this.semaphore < 0) {
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this.semaphore = 0;
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}
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this._execute();
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},
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wait: function as_wait(callback, context, args) {
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this.pendingTasks.push({
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callback: callback,
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context: context,
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args: args
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});
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this._execute();
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},
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getValue: function as_getValue() {
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return this.semaphore;
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},
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getTasksLength: function as_getTasksLength() {
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return this.pendingTasks.length;
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}
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};
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exports.AsyncSemaphore = AsyncSemaphore;
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}(window));
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