@imqueue/pg-pubsub/src/NoLock.js

Reliable PostgreSQL LISTEN/NOTIFY with inter-process lock support

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.NoLock = void 0;
// istanbul ignore next
/**
 * Implements no lock to be used with multi-listener approach
 */
class NoLock {
    /**
     * Init no lock
     */
    async init() {
        return Promise.resolve();
    }
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    onRelease(handler) {
        return;
    }
    /**
     * Always acquires, because it's no lock
     *
     * @return {Promise<boolean>}
     */
    async acquire() {
        return Promise.resolve(true);
    }
    /**
     * Never releases, because it's no lock
     *
     * @return {Promise<void>}
     */
    async release() {
        return Promise.resolve();
    }
    /**
     * Always acquired, because it's no lock
     *
     * @return {boolean}
     */
    isAcquired() {
        return true;
    }
    /**
     * Safely destroys this no lock
     *
     * @return {Promise<void>}
     */
    async destroy() {
        return Promise.resolve();
    }
}
exports.NoLock = NoLock;
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