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node_modules/thread-loader/dist/workerPools.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getPool = getPool;
+
+var _os = _interopRequireDefault(require("os"));
+
+var _WorkerPool = _interopRequireDefault(require("./WorkerPool"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const workerPools = Object.create(null);
+
+function calculateNumberOfWorkers() {
+  // There are situations when this call will return undefined so
+  // we are fallback here to 1.
+  // More info on: https://github.com/nodejs/node/issues/19022
+  const cpus = _os.default.cpus() || {
+    length: 1
+  };
+  return Math.max(1, cpus.length - 1);
+}
+
+function getPool(options) {
+  const workerPoolOptions = {
+    name: options.name || '',
+    numberOfWorkers: options.workers || calculateNumberOfWorkers(),
+    workerNodeArgs: options.workerNodeArgs,
+    workerParallelJobs: options.workerParallelJobs || 20,
+    poolTimeout: options.poolTimeout || 500,
+    poolParallelJobs: options.poolParallelJobs || 200,
+    poolRespawn: options.poolRespawn || false
+  };
+  const tpKey = JSON.stringify(workerPoolOptions);
+  workerPools[tpKey] = workerPools[tpKey] || new _WorkerPool.default(workerPoolOptions);
+  return workerPools[tpKey];
+} // eslint-disable-line import/prefer-default-export