//================================================================
/**
 * @packageDocumentation
 * @module std
 */
//================================================================
import { ITimedLockable } from "../base/thread/ITimedLockable";
import { SharedTimedMutex } from "./SharedTimedMutex";

/**
 * Timed mutex.
 *
 * @author Jeongho Nam - https://github.com/samchon
 */
export class TimedMutex implements ITimedLockable {
    private mutex_: SharedTimedMutex;

    /* ---------------------------------------------------------
        CONSTRUCTOR
    --------------------------------------------------------- */
    /**
     * Default Constructor.
     */
    public constructor() {
        this.mutex_ = new SharedTimedMutex(this);
    }

    /* ---------------------------------------------------------
        LOCK & UNLOCK
    --------------------------------------------------------- */
    /**
     * @inheritDoc
     */
    public lock(): Promise<void> {
        return this.mutex_.lock();
    }

    /**
     * @inheritDoc
     */
    public try_lock(): Promise<boolean> {
        return this.mutex_.try_lock();
    }

    /**
     * @inheritDoc
     */
    public unlock(): Promise<void> {
        return this.mutex_.unlock();
    }

    /* ---------------------------------------------------------
        TIMED LOCK
    --------------------------------------------------------- */
    /**
     * @inheritDoc
     */
    public try_lock_for(ms: number): Promise<boolean> {
        return this.mutex_.try_lock_for(ms);
    }

    /**
     * @inheritDoc
     */
    public try_lock_until(at: Date): Promise<boolean> {
        return this.mutex_.try_lock_until(at);
    }
}