infobip-rtc/dist/call/impl/util/AsyncLock.js

Infobip RTC JavaScript SDK - Infobip WebRTC API Implementation

export class AsyncLock {
    constructor() {
        this.taskQueue = [];
        this.active = false;
    }
    acquireLock() {
        return new Promise(lockResolve => {
            this.withLock(() => {
                return new Promise((resolve) => {
                    lockResolve({
                        release: () => {
                            resolve(null);
                        }
                    });
                });
            });
        });
    }
    withLock(action) {
        let deferredResolve;
        let deferredReject;
        const deferred = new Promise((resolve, reject) => {
            deferredResolve = resolve;
            deferredReject = reject;
        });
        const executeTask = async () => {
            await action().then(deferredResolve, deferredReject);
            if (this.taskQueue.length > 0) {
                this.taskQueue.shift()();
            }
            else {
                this.active = false;
            }
        };
        if (this.active) {
            this.taskQueue.push(executeTask);
        }
        else {
            this.active = true;
            executeTask();
        }
        return deferred;
    }
}
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