Method processIdleTasks

lib/cache/IdleFileCachePlugin.js:142–183

()

		let isIdle = false;
		let isInitialStore = true;
		const processIdleTasks = () => {
			if (isIdle) {
				const startTime = Date.now();
				if (pendingIdleTasks.size > 0) {
					const promises = [currentIdlePromise];
					const maxTime = startTime + 100;
					let maxCount = 100;
					for (const [filename, factory] of pendingIdleTasks) {
						pendingIdleTasks.delete(filename);
						promises.push(factory());
						if (maxCount-- <= 0 || Date.now() > maxTime) break;
					}
					currentIdlePromise = Promise.all(
						/** @type {Promise<void>[]} */
						(promises)
					);
					currentIdlePromise.then(() => {
						timeSpendInStore += Date.now() - startTime;
						// Allow to exit the process between
						idleTimer = setTimeout(processIdleTasks, 0);
						idleTimer.unref();
					});
					return;
				}
				currentIdlePromise = currentIdlePromise
					.then(async () => {
						await strategy.afterAllStored();
						timeSpendInStore += Date.now() - startTime;
						avgTimeSpendInStore =
							Math.max(avgTimeSpendInStore, timeSpendInStore) * 0.9 +
							timeSpendInStore * 0.1;
						timeSpendInStore = 0;
						timeSpendInBuild = 0;
					})
					.catch((err) => {
						const logger = compiler.getInfrastructureLogger(PLUGIN_NAME);
						logger.warn(`Background tasks during idle failed: ${err.message}`);
						logger.debug(err.stack);
					});
				isInitialStore = false;
			}
		};
		/** @type {ReturnType<typeof setTimeout> | undefined} */
		let idleTimer;
		compiler.cache.hooks.beginIdle.tap(