devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
26 lines (25 loc) • 591 B
JavaScript
/**
* DevExtreme (esm/renovation/ui/scheduler/semaphore.js)
* Version: 21.2.4
* Build date: Mon Dec 06 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
export class Semaphore {
constructor() {
this.counter = 0
}
isFree() {
return 0 === this.counter
}
take() {
this.counter += 1
}
release() {
this.counter -= 1;
if (this.counter < 0) {
this.counter = 0
}
}
}