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SecureFileWrapper/lib/lock.js

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