49 lines
1.6 KiB
JavaScript
49 lines
1.6 KiB
JavaScript
|
"use strict";
|
||
|
|
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
||
|
|
return new (P || (P = Promise))(function (resolve, reject) {
|
||
|
|
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
|
||
|
|
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
|
||
|
|
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
|
||
|
|
step((generator = generator.apply(thisArg, _arguments || [])).next());
|
||
|
|
});
|
||
|
|
};
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
class Lock {
|
||
|
|
constructor() {
|
||
|
|
this._locked = false;
|
||
|
|
this.toCome = [];
|
||
|
|
this.release = this.release.bind(this);
|
||
|
|
}
|
||
|
|
get locked() {
|
||
|
|
return this._locked;
|
||
|
|
}
|
||
|
|
getLock() {
|
||
|
|
return __awaiter(this, void 0, void 0, function* () {
|
||
|
|
if (!this._locked)
|
||
|
|
return { release: this.lock() };
|
||
|
|
else {
|
||
|
|
return new Promise((resolve) => {
|
||
|
|
this.toCome.push(() => {
|
||
|
|
resolve({ release: this.lock() });
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
lock() {
|
||
|
|
this._locked = true;
|
||
|
|
return this.release;
|
||
|
|
}
|
||
|
|
release() {
|
||
|
|
return __awaiter(this, void 0, void 0, function* () {
|
||
|
|
if (this.toCome.length > 0) {
|
||
|
|
this.toCome.shift()();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this._locked = false;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.default = Lock;
|
||
|
|
//# sourceMappingURL=lock.js.map
|