@netlify/content-engine/dist/core-utils/mutex.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createMutex = createMutex;
exports.releaseAllMutexes = releaseAllMutexes;
const get_storage_1 = require("./utils/get-storage");
// Random number to re-check if mutex got released
const DEFAULT_MUTEX_INTERVAL = 3000;
async function waitUntilUnlocked(storage, key, timeout) {
    const isUnlocked = await storage.mutex.ifNoExists(key, () => {
        storage.mutex.put(key, get_storage_1.LockStatus.Locked);
    });
    if (isUnlocked) {
        return;
    }
    await new Promise((resolve) => {
        setTimeout(() => {
            resolve(waitUntilUnlocked(storage, key, timeout));
        }, timeout);
    });
}
/**
 * Creates a mutex, make sure to call `release` when you're done with it.
 *
 * @param {string} key A unique key
 */
function createMutex(key, timeout = DEFAULT_MUTEX_INTERVAL) {
    const storage = (0, get_storage_1.getStorage)((0, get_storage_1.getDatabaseDir)());
    const BUILD_ID = global.__GATSBY?.buildId ?? ``;
    const prefixedKey = `${BUILD_ID}-${key}`;
    return {
        acquire: () => waitUntilUnlocked(storage, prefixedKey, timeout),
        release: async () => {
            await storage.mutex.remove(prefixedKey);
        },
    };
}
async function releaseAllMutexes() {
    const storage = (0, get_storage_1.getStorage)((0, get_storage_1.getDatabaseDir)());
    await storage.mutex.clearAsync();
}
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