first commit

node_modules/tinypool/LICENSE

@@ -0,0 +1,24 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 James M Snell and the Piscina contributors
+
+Piscina contributors listed at https://github.com/jasnell/piscina#the-team and
+in the README file.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/tinypool/README.md

@@ -0,0 +1,19 @@
+# Tinypool - the node.js worker pool 🧵
+
+> Piscina: A fast, efficient Node.js Worker Thread Pool implementation
+
+Tinypool is a fork of piscina. What we try to achieve in this library, is to eliminate some dependencies and features that our target users don't need (currently, our main user will be Vitest). Tinypool's install size (38KB) can then be smaller than Piscina's install size (6MB). If you need features like [utilization](https://github.com/piscinajs/piscina#property-utilization-readonly) or [NAPI](https://github.com/piscinajs/piscina#thread-priority-on-linux-systems), [Piscina](https://github.com/piscinajs/piscina) is a better choice for you. We think that Piscina is an amazing library, and we may try to upstream some of the dependencies optimization in this fork.
+
+- ✅ Smaller install size, 38KB
+- ✅ Minimal
+- ✅ No dependencies
+- ✅ Physical cores instead of Logical cores with [physical-cpu-count](https://www.npmjs.com/package/physical-cpu-count)
+- ❌ No utilization
+- ❌ No NAPI
+
+- Written in TypeScript, and ESM support only. For Node.js 14.x and higher.
+
+_In case you need more tiny libraries like tinypool or tinyspy, please consider submitting an [RFC](https://github.com/tinylibs/rfcs)_
+
+## Docs
+Read **[full docs](https://github.com/aslemammad/tinypool#readme)** on GitHub.

node_modules/tinypool/dist/esm/chunk-QYFJIXNO.js

@@ -0,0 +1,75 @@
+var __defProp = Object.defineProperty;
+var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
+var __publicField = (obj, key, value) => {
+  __defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value);
+  return value;
+};
+var __accessCheck = (obj, member, msg) => {
+  if (!member.has(obj))
+    throw TypeError("Cannot " + msg);
+};
+var __privateGet = (obj, member, getter) => {
+  __accessCheck(obj, member, "read from private field");
+  return getter ? getter.call(obj) : member.get(obj);
+};
+var __privateAdd = (obj, member, value) => {
+  if (member.has(obj))
+    throw TypeError("Cannot add the same private member more than once");
+  member instanceof WeakSet ? member.add(obj) : member.set(obj, value);
+};
+var __privateSet = (obj, member, value, setter) => {
+  __accessCheck(obj, member, "write to private field");
+  setter ? setter.call(obj, value) : member.set(obj, value);
+  return value;
+};
+
+// node_modules/.pnpm/tsup@5.12.9_w42fuc5ytk33cxmvw2eywssbqm/node_modules/tsup/assets/esm_shims.js
+import { fileURLToPath } from "url";
+import path from "path";
+var getFilename = () => fileURLToPath(import.meta.url);
+var getDirname = () => path.dirname(getFilename());
+var __dirname = /* @__PURE__ */ getDirname();
+
+// src/common.ts
+var kMovable = Symbol("Tinypool.kMovable");
+var kTransferable = Symbol.for("Tinypool.transferable");
+var kValue = Symbol.for("Tinypool.valueOf");
+var kQueueOptions = Symbol.for("Tinypool.queueOptions");
+function isTransferable(value) {
+  return value != null && typeof value === "object" && kTransferable in value && kValue in value;
+}
+function isMovable(value) {
+  return isTransferable(value) && value[kMovable] === true;
+}
+function markMovable(value) {
+  Object.defineProperty(value, kMovable, {
+    enumerable: false,
+    configurable: true,
+    writable: true,
+    value: true
+  });
+}
+function isTaskQueue(value) {
+  return typeof value === "object" && value !== null && "size" in value && typeof value.shift === "function" && typeof value.remove === "function" && typeof value.push === "function";
+}
+var kRequestCountField = 0;
+var kResponseCountField = 1;
+var kFieldCount = 2;
+
+export {
+  __publicField,
+  __privateGet,
+  __privateAdd,
+  __privateSet,
+  __dirname,
+  kTransferable,
+  kValue,
+  kQueueOptions,
+  isTransferable,
+  isMovable,
+  markMovable,
+  isTaskQueue,
+  kRequestCountField,
+  kResponseCountField,
+  kFieldCount
+};

node_modules/tinypool/dist/esm/index.js

@@ -0,0 +1,823 @@
+"use strict";
+import {
+  __dirname,
+  __privateAdd,
+  __privateGet,
+  __privateSet,
+  __publicField,
+  isMovable,
+  isTaskQueue,
+  isTransferable,
+  kFieldCount,
+  kQueueOptions,
+  kRequestCountField,
+  kResponseCountField,
+  kTransferable,
+  kValue,
+  markMovable
+} from "./chunk-QYFJIXNO.js";
+
+// src/index.ts
+import {
+  Worker,
+  MessageChannel,
+  receiveMessageOnPort
+} from "worker_threads";
+import { once } from "events";
+
+// src/EventEmitterAsyncResource.ts
+import { EventEmitter } from "events";
+import { AsyncResource } from "async_hooks";
+var kEventEmitter = Symbol("kEventEmitter");
+var kAsyncResource = Symbol("kAsyncResource");
+var _a;
+var EventEmitterReferencingAsyncResource = class extends AsyncResource {
+  constructor(ee, type, options) {
+    super(type, options);
+    __publicField(this, _a);
+    this[kEventEmitter] = ee;
+  }
+  get eventEmitter() {
+    return this[kEventEmitter];
+  }
+};
+_a = kEventEmitter;
+var _a2;
+var _EventEmitterAsyncResource = class extends EventEmitter {
+  constructor(options) {
+    let name;
+    if (typeof options === "string") {
+      name = options;
+      options = void 0;
+    } else {
+      name = options?.name || new.target.name;
+    }
+    super(options);
+    __publicField(this, _a2);
+    this[kAsyncResource] = new EventEmitterReferencingAsyncResource(this, name, options);
+  }
+  emit(event, ...args) {
+    return this.asyncResource.runInAsyncScope(super.emit, this, event, ...args);
+  }
+  emitDestroy() {
+    this.asyncResource.emitDestroy();
+  }
+  asyncId() {
+    return this.asyncResource.asyncId();
+  }
+  triggerAsyncId() {
+    return this.asyncResource.triggerAsyncId();
+  }
+  get asyncResource() {
+    return this[kAsyncResource];
+  }
+  static get EventEmitterAsyncResource() {
+    return _EventEmitterAsyncResource;
+  }
+};
+var EventEmitterAsyncResource = _EventEmitterAsyncResource;
+_a2 = kAsyncResource;
+var EventEmitterAsyncResource_default = EventEmitterAsyncResource;
+
+// src/index.ts
+import { AsyncResource as AsyncResource2 } from "async_hooks";
+import { fileURLToPath, URL } from "url";
+import { dirname, join, resolve } from "path";
+import { inspect, types } from "util";
+import assert from "assert";
+import { performance } from "perf_hooks";
+import { readFileSync } from "fs";
+
+// src/physicalCpuCount.ts
+import os from "os";
+import childProcess from "child_process";
+function exec(command) {
+  const output = childProcess.execSync(command, {
+    encoding: "utf8",
+    stdio: [null, null, null]
+  });
+  return output;
+}
+var amount;
+try {
+  const platform = os.platform();
+  if (platform === "linux") {
+    const output1 = exec('cat /proc/cpuinfo | grep "physical id" | sort |uniq | wc -l');
+    const output2 = exec('cat /proc/cpuinfo | grep "core id" | sort | uniq | wc -l');
+    const physicalCpuAmount = parseInt(output1.trim(), 10);
+    const physicalCoreAmount = parseInt(output2.trim(), 10);
+    amount = physicalCpuAmount * physicalCoreAmount;
+  } else if (platform === "darwin") {
+    const output = exec("sysctl -n hw.physicalcpu_max");
+    amount = parseInt(output.trim(), 10);
+  } else if (platform === "win32") {
+    throw new Error();
+  } else {
+    const cores = os.cpus().filter(function(cpu, index) {
+      const hasHyperthreading = cpu.model.includes("Intel");
+      const isOdd = index % 2 === 1;
+      return !hasHyperthreading || isOdd;
+    });
+    amount = cores.length;
+  }
+} catch {
+  amount = os.cpus().length;
+}
+
+// src/index.ts
+var cpuCount = amount;
+function onabort(abortSignal, listener) {
+  if ("addEventListener" in abortSignal) {
+    abortSignal.addEventListener("abort", listener, { once: true });
+  } else {
+    abortSignal.once("abort", listener);
+  }
+}
+var AbortError = class extends Error {
+  constructor() {
+    super("The task has been aborted");
+  }
+  get name() {
+    return "AbortError";
+  }
+};
+var ArrayTaskQueue = class {
+  constructor() {
+    __publicField(this, "tasks", []);
+  }
+  get size() {
+    return this.tasks.length;
+  }
+  shift() {
+    return this.tasks.shift();
+  }
+  push(task) {
+    this.tasks.push(task);
+  }
+  remove(task) {
+    const index = this.tasks.indexOf(task);
+    assert.notStrictEqual(index, -1);
+    this.tasks.splice(index, 1);
+  }
+};
+var kDefaultOptions = {
+  filename: null,
+  name: "default",
+  minThreads: Math.max(cpuCount / 2, 1),
+  maxThreads: cpuCount,
+  idleTimeout: 0,
+  maxQueue: Infinity,
+  concurrentTasksPerWorker: 1,
+  useAtomics: true,
+  taskQueue: new ArrayTaskQueue(),
+  trackUnmanagedFds: true
+};
+var kDefaultRunOptions = {
+  transferList: void 0,
+  filename: null,
+  signal: null,
+  name: null
+};
+var _value;
+var DirectlyTransferable = class {
+  constructor(value) {
+    __privateAdd(this, _value, void 0);
+    __privateSet(this, _value, value);
+  }
+  get [kTransferable]() {
+    return __privateGet(this, _value);
+  }
+  get [kValue]() {
+    return __privateGet(this, _value);
+  }
+};
+_value = new WeakMap();
+var _view;
+var ArrayBufferViewTransferable = class {
+  constructor(view) {
+    __privateAdd(this, _view, void 0);
+    __privateSet(this, _view, view);
+  }
+  get [kTransferable]() {
+    return __privateGet(this, _view).buffer;
+  }
+  get [kValue]() {
+    return __privateGet(this, _view);
+  }
+};
+_view = new WeakMap();
+var taskIdCounter = 0;
+function maybeFileURLToPath(filename) {
+  return filename.startsWith("file:") ? fileURLToPath(new URL(filename)) : filename;
+}
+var TaskInfo = class extends AsyncResource2 {
+  constructor(task, transferList, filename, name, callback, abortSignal, triggerAsyncId) {
+    super("Tinypool.Task", { requireManualDestroy: true, triggerAsyncId });
+    __publicField(this, "callback");
+    __publicField(this, "task");
+    __publicField(this, "transferList");
+    __publicField(this, "filename");
+    __publicField(this, "name");
+    __publicField(this, "taskId");
+    __publicField(this, "abortSignal");
+    __publicField(this, "abortListener", null);
+    __publicField(this, "workerInfo", null);
+    __publicField(this, "created");
+    __publicField(this, "started");
+    this.callback = callback;
+    this.task = task;
+    this.transferList = transferList;
+    if (isMovable(task)) {
+      if (this.transferList == null) {
+        this.transferList = [];
+      }
+      this.transferList = this.transferList.concat(task[kTransferable]);
+      this.task = task[kValue];
+    }
+    this.filename = filename;
+    this.name = name;
+    this.taskId = taskIdCounter++;
+    this.abortSignal = abortSignal;
+    this.created = performance.now();
+    this.started = 0;
+  }
+  releaseTask() {
+    const ret = this.task;
+    this.task = null;
+    return ret;
+  }
+  done(err, result) {
+    this.emitDestroy();
+    this.runInAsyncScope(this.callback, null, err, result);
+    if (this.abortSignal && this.abortListener) {
+      if ("removeEventListener" in this.abortSignal && this.abortListener) {
+        this.abortSignal.removeEventListener("abort", this.abortListener);
+      } else {
+        ;
+        this.abortSignal.off("abort", this.abortListener);
+      }
+    }
+  }
+  get [kQueueOptions]() {
+    return kQueueOptions in this.task ? this.task[kQueueOptions] : null;
+  }
+};
+var AsynchronouslyCreatedResource = class {
+  constructor() {
+    __publicField(this, "onreadyListeners", []);
+  }
+  markAsReady() {
+    const listeners = this.onreadyListeners;
+    assert(listeners !== null);
+    this.onreadyListeners = null;
+    for (const listener of listeners) {
+      listener();
+    }
+  }
+  isReady() {
+    return this.onreadyListeners === null;
+  }
+  onReady(fn) {
+    if (this.onreadyListeners === null) {
+      fn();
+      return;
+    }
+    this.onreadyListeners.push(fn);
+  }
+};
+var AsynchronouslyCreatedResourcePool = class {
+  constructor(maximumUsage) {
+    __publicField(this, "pendingItems", /* @__PURE__ */ new Set());
+    __publicField(this, "readyItems", /* @__PURE__ */ new Set());
+    __publicField(this, "maximumUsage");
+    __publicField(this, "onAvailableListeners");
+    this.maximumUsage = maximumUsage;
+    this.onAvailableListeners = [];
+  }
+  add(item) {
+    this.pendingItems.add(item);
+    item.onReady(() => {
+      if (this.pendingItems.has(item)) {
+        this.pendingItems.delete(item);
+        this.readyItems.add(item);
+        this.maybeAvailable(item);
+      }
+    });
+  }
+  delete(item) {
+    this.pendingItems.delete(item);
+    this.readyItems.delete(item);
+  }
+  findAvailable() {
+    let minUsage = this.maximumUsage;
+    let candidate = null;
+    for (const item of this.readyItems) {
+      const usage = item.currentUsage();
+      if (usage === 0)
+        return item;
+      if (usage < minUsage) {
+        candidate = item;
+        minUsage = usage;
+      }
+    }
+    return candidate;
+  }
+  *[Symbol.iterator]() {
+    yield* this.pendingItems;
+    yield* this.readyItems;
+  }
+  get size() {
+    return this.pendingItems.size + this.readyItems.size;
+  }
+  maybeAvailable(item) {
+    if (item.currentUsage() < this.maximumUsage) {
+      for (const listener of this.onAvailableListeners) {
+        listener(item);
+      }
+    }
+  }
+  onAvailable(fn) {
+    this.onAvailableListeners.push(fn);
+  }
+};
+var Errors = {
+  ThreadTermination: () => new Error("Terminating worker thread"),
+  FilenameNotProvided: () => new Error("filename must be provided to run() or in options object"),
+  TaskQueueAtLimit: () => new Error("Task queue is at limit"),
+  NoTaskQueueAvailable: () => new Error("No task queue available and all Workers are busy")
+};
+var WorkerInfo = class extends AsynchronouslyCreatedResource {
+  constructor(worker, port, workerId, freeWorkerId, onMessage) {
+    super();
+    __publicField(this, "worker");
+    __publicField(this, "workerId");
+    __publicField(this, "freeWorkerId");
+    __publicField(this, "taskInfos");
+    __publicField(this, "idleTimeout", null);
+    __publicField(this, "port");
+    __publicField(this, "sharedBuffer");
+    __publicField(this, "lastSeenResponseCount", 0);
+    __publicField(this, "onMessage");
+    this.worker = worker;
+    this.workerId = workerId;
+    this.freeWorkerId = freeWorkerId;
+    this.port = port;
+    this.port.on("message", (message) => this._handleResponse(message));
+    this.onMessage = onMessage;
+    this.taskInfos = /* @__PURE__ */ new Map();
+    this.sharedBuffer = new Int32Array(new SharedArrayBuffer(kFieldCount * Int32Array.BYTES_PER_ELEMENT));
+  }
+  async destroy() {
+    await this.worker.terminate();
+    this.port.close();
+    this.clearIdleTimeout();
+    for (const taskInfo of this.taskInfos.values()) {
+      taskInfo.done(Errors.ThreadTermination());
+    }
+    this.taskInfos.clear();
+  }
+  clearIdleTimeout() {
+    if (this.idleTimeout !== null) {
+      clearTimeout(this.idleTimeout);
+      this.idleTimeout = null;
+    }
+  }
+  ref() {
+    this.port.ref();
+    return this;
+  }
+  unref() {
+    this.port.unref();
+    return this;
+  }
+  _handleResponse(message) {
+    this.onMessage(message);
+    if (this.taskInfos.size === 0) {
+      this.unref();
+    }
+  }
+  postTask(taskInfo) {
+    assert(!this.taskInfos.has(taskInfo.taskId));
+    const message = {
+      task: taskInfo.releaseTask(),
+      taskId: taskInfo.taskId,
+      filename: taskInfo.filename,
+      name: taskInfo.name
+    };
+    try {
+      this.port.postMessage(message, taskInfo.transferList);
+    } catch (err) {
+      taskInfo.done(err);
+      return;
+    }
+    taskInfo.workerInfo = this;
+    this.taskInfos.set(taskInfo.taskId, taskInfo);
+    this.ref();
+    this.clearIdleTimeout();
+    Atomics.add(this.sharedBuffer, kRequestCountField, 1);
+    Atomics.notify(this.sharedBuffer, kRequestCountField, 1);
+  }
+  processPendingMessages() {
+    const actualResponseCount = Atomics.load(this.sharedBuffer, kResponseCountField);
+    if (actualResponseCount !== this.lastSeenResponseCount) {
+      this.lastSeenResponseCount = actualResponseCount;
+      let entry;
+      while ((entry = receiveMessageOnPort(this.port)) !== void 0) {
+        this._handleResponse(entry.message);
+      }
+    }
+  }
+  isRunningAbortableTask() {
+    if (this.taskInfos.size !== 1)
+      return false;
+    const [[, task]] = this.taskInfos;
+    return task.abortSignal !== null;
+  }
+  currentUsage() {
+    if (this.isRunningAbortableTask())
+      return Infinity;
+    return this.taskInfos.size;
+  }
+};
+var ThreadPool = class {
+  constructor(publicInterface, options) {
+    __publicField(this, "publicInterface");
+    __publicField(this, "workers");
+    __publicField(this, "workerIds");
+    __publicField(this, "options");
+    __publicField(this, "taskQueue");
+    __publicField(this, "skipQueue", []);
+    __publicField(this, "completed", 0);
+    __publicField(this, "start", performance.now());
+    __publicField(this, "inProcessPendingMessages", false);
+    __publicField(this, "startingUp", false);
+    __publicField(this, "workerFailsDuringBootstrap", false);
+    this.publicInterface = publicInterface;
+    this.taskQueue = options.taskQueue || new ArrayTaskQueue();
+    const filename = options.filename ? maybeFileURLToPath(options.filename) : null;
+    this.options = { ...kDefaultOptions, ...options, filename, maxQueue: 0 };
+    if (options.maxThreads !== void 0 && this.options.minThreads >= options.maxThreads) {
+      this.options.minThreads = options.maxThreads;
+    }
+    if (options.minThreads !== void 0 && this.options.maxThreads <= options.minThreads) {
+      this.options.maxThreads = options.minThreads;
+    }
+    if (options.maxQueue === "auto") {
+      this.options.maxQueue = this.options.maxThreads ** 2;
+    } else {
+      this.options.maxQueue = options.maxQueue ?? kDefaultOptions.maxQueue;
+    }
+    this.workerIds = new Map(new Array(this.options.maxThreads).fill(0).map((_, i) => [i + 1, true]));
+    this.workers = new AsynchronouslyCreatedResourcePool(this.options.concurrentTasksPerWorker);
+    this.workers.onAvailable((w) => this._onWorkerAvailable(w));
+    this.startingUp = true;
+    this._ensureMinimumWorkers();
+    this.startingUp = false;
+  }
+  _ensureEnoughWorkersForTaskQueue() {
+    while (this.workers.size < this.taskQueue.size && this.workers.size < this.options.maxThreads) {
+      this._addNewWorker();
+    }
+  }
+  _ensureMaximumWorkers() {
+    while (this.workers.size < this.options.maxThreads) {
+      this._addNewWorker();
+    }
+  }
+  _ensureMinimumWorkers() {
+    while (this.workers.size < this.options.minThreads) {
+      this._addNewWorker();
+    }
+  }
+  _addNewWorker() {
+    const pool = this;
+    const workerIds = this.workerIds;
+    const __dirname2 = dirname(fileURLToPath(import.meta.url));
+    let workerId;
+    workerIds.forEach((isIdAvailable, _workerId2) => {
+      if (isIdAvailable && !workerId) {
+        workerId = _workerId2;
+        workerIds.set(_workerId2, false);
+      }
+    });
+    const tinypoolPrivateData = { workerId };
+    const worker = new Worker(resolve(__dirname2, "./worker.js"), {
+      env: this.options.env,
+      argv: this.options.argv,
+      execArgv: this.options.execArgv,
+      resourceLimits: this.options.resourceLimits,
+      workerData: [
+        tinypoolPrivateData,
+        this.options.workerData
+      ],
+      trackUnmanagedFds: this.options.trackUnmanagedFds
+    });
+    const onMessage = (message2) => {
+      const { taskId, result } = message2;
+      const taskInfo = workerInfo.taskInfos.get(taskId);
+      workerInfo.taskInfos.delete(taskId);
+      if (!this.options.isolateWorkers)
+        pool.workers.maybeAvailable(workerInfo);
+      if (taskInfo === void 0) {
+        const err = new Error(`Unexpected message from Worker: ${inspect(message2)}`);
+        pool.publicInterface.emit("error", err);
+      } else {
+        taskInfo.done(message2.error, result);
+      }
+      pool._processPendingMessages();
+    };
+    const { port1, port2 } = new MessageChannel();
+    const workerInfo = new WorkerInfo(worker, port1, workerId, () => workerIds.set(workerId, true), onMessage);
+    if (this.startingUp) {
+      workerInfo.markAsReady();
+    }
+    const message = {
+      filename: this.options.filename,
+      name: this.options.name,
+      port: port2,
+      sharedBuffer: workerInfo.sharedBuffer,
+      useAtomics: this.options.useAtomics
+    };
+    worker.postMessage(message, [port2]);
+    worker.on("message", (message2) => {
+      if (message2.ready === true) {
+        if (workerInfo.currentUsage() === 0) {
+          workerInfo.unref();
+        }
+        if (!workerInfo.isReady()) {
+          workerInfo.markAsReady();
+        }
+        return;
+      }
+      worker.emit("error", new Error(`Unexpected message on Worker: ${inspect(message2)}`));
+    });
+    worker.on("error", (err) => {
+      worker.ref = () => {
+      };
+      const taskInfos = [...workerInfo.taskInfos.values()];
+      workerInfo.taskInfos.clear();
+      this._removeWorker(workerInfo);
+      if (workerInfo.isReady() && !this.workerFailsDuringBootstrap) {
+        this._ensureMinimumWorkers();
+      } else {
+        this.workerFailsDuringBootstrap = true;
+      }
+      if (taskInfos.length > 0) {
+        for (const taskInfo of taskInfos) {
+          taskInfo.done(err, null);
+        }
+      } else {
+        this.publicInterface.emit("error", err);
+      }
+    });
+    worker.unref();
+    port1.on("close", () => {
+      worker.ref();
+    });
+    this.workers.add(workerInfo);
+  }
+  _processPendingMessages() {
+    if (this.inProcessPendingMessages || !this.options.useAtomics) {
+      return;
+    }
+    this.inProcessPendingMessages = true;
+    try {
+      for (const workerInfo of this.workers) {
+        workerInfo.processPendingMessages();
+      }
+    } finally {
+      this.inProcessPendingMessages = false;
+    }
+  }
+  _removeWorker(workerInfo) {
+    workerInfo.freeWorkerId();
+    workerInfo.destroy();
+    this.workers.delete(workerInfo);
+  }
+  _onWorkerAvailable(workerInfo) {
+    while ((this.taskQueue.size > 0 || this.skipQueue.length > 0) && workerInfo.currentUsage() < this.options.concurrentTasksPerWorker) {
+      const taskInfo = this.skipQueue.shift() || this.taskQueue.shift();
+      if (taskInfo.abortSignal && workerInfo.taskInfos.size > 0) {
+        this.skipQueue.push(taskInfo);
+        break;
+      }
+      const now = performance.now();
+      taskInfo.started = now;
+      workerInfo.postTask(taskInfo);
+      this._maybeDrain();
+      return;
+    }
+    if (workerInfo.taskInfos.size === 0 && this.workers.size > this.options.minThreads) {
+      workerInfo.idleTimeout = setTimeout(() => {
+        assert.strictEqual(workerInfo.taskInfos.size, 0);
+        if (this.workers.size > this.options.minThreads) {
+          this._removeWorker(workerInfo);
+        }
+      }, this.options.idleTimeout).unref();
+    }
+  }
+  runTask(task, options) {
+    let { filename, name } = options;
+    const { transferList = [], signal = null } = options;
+    if (filename == null) {
+      filename = this.options.filename;
+    }
+    if (name == null) {
+      name = this.options.name;
+    }
+    if (typeof filename !== "string") {
+      return Promise.reject(Errors.FilenameNotProvided());
+    }
+    filename = maybeFileURLToPath(filename);
+    let resolve2;
+    let reject;
+    const ret = new Promise((res, rej) => {
+      resolve2 = res;
+      reject = rej;
+    });
+    const taskInfo = new TaskInfo(task, transferList, filename, name, (err, result) => {
+      this.completed++;
+      if (err !== null) {
+        reject(err);
+      } else {
+        resolve2(result);
+      }
+      if (this.options.isolateWorkers && taskInfo.workerInfo) {
+        this._removeWorker(taskInfo.workerInfo);
+        this._ensureEnoughWorkersForTaskQueue();
+      }
+    }, signal, this.publicInterface.asyncResource.asyncId());
+    if (signal !== null) {
+      if (signal.aborted) {
+        return Promise.reject(new AbortError());
+      }
+      taskInfo.abortListener = () => {
+        reject(new AbortError());
+        if (taskInfo.workerInfo !== null) {
+          this._removeWorker(taskInfo.workerInfo);
+          this._ensureMinimumWorkers();
+        } else {
+          this.taskQueue.remove(taskInfo);
+        }
+      };
+      onabort(signal, taskInfo.abortListener);
+    }
+    if (this.taskQueue.size > 0) {
+      const totalCapacity = this.options.maxQueue + this.pendingCapacity();
+      if (this.taskQueue.size >= totalCapacity) {
+        if (this.options.maxQueue === 0) {
+          return Promise.reject(Errors.NoTaskQueueAvailable());
+        } else {
+          return Promise.reject(Errors.TaskQueueAtLimit());
+        }
+      } else {
+        if (this.workers.size < this.options.maxThreads) {
+          this._addNewWorker();
+        }
+        this.taskQueue.push(taskInfo);
+      }
+      return ret;
+    }
+    let workerInfo = this.workers.findAvailable();
+    if (workerInfo !== null && workerInfo.currentUsage() > 0 && signal) {
+      workerInfo = null;
+    }
+    let waitingForNewWorker = false;
+    if ((workerInfo === null || workerInfo.currentUsage() > 0) && this.workers.size < this.options.maxThreads) {
+      this._addNewWorker();
+      waitingForNewWorker = true;
+    }
+    if (workerInfo === null) {
+      if (this.options.maxQueue <= 0 && !waitingForNewWorker) {
+        return Promise.reject(Errors.NoTaskQueueAvailable());
+      } else {
+        this.taskQueue.push(taskInfo);
+      }
+      return ret;
+    }
+    const now = performance.now();
+    taskInfo.started = now;
+    workerInfo.postTask(taskInfo);
+    this._maybeDrain();
+    return ret;
+  }
+  pendingCapacity() {
+    return this.workers.pendingItems.size * this.options.concurrentTasksPerWorker;
+  }
+  _maybeDrain() {
+    if (this.taskQueue.size === 0 && this.skipQueue.length === 0) {
+      this.publicInterface.emit("drain");
+    }
+  }
+  async destroy() {
+    while (this.skipQueue.length > 0) {
+      const taskInfo = this.skipQueue.shift();
+      taskInfo.done(new Error("Terminating worker thread"));
+    }
+    while (this.taskQueue.size > 0) {
+      const taskInfo = this.taskQueue.shift();
+      taskInfo.done(new Error("Terminating worker thread"));
+    }
+    const exitEvents = [];
+    while (this.workers.size > 0) {
+      const [workerInfo] = this.workers;
+      exitEvents.push(once(workerInfo.worker, "exit"));
+      this._removeWorker(workerInfo);
+    }
+    await Promise.all(exitEvents);
+  }
+};
+var _pool;
+var Tinypool = class extends EventEmitterAsyncResource_default {
+  constructor(options = {}) {
+    if (options.minThreads !== void 0 && options.minThreads > 0 && options.minThreads < 1) {
+      options.minThreads = Math.max(1, Math.floor(options.minThreads * cpuCount));
+    }
+    if (options.maxThreads !== void 0 && options.maxThreads > 0 && options.maxThreads < 1) {
+      options.maxThreads = Math.max(1, Math.floor(options.maxThreads * cpuCount));
+    }
+    super({ ...options, name: "Tinypool" });
+    __privateAdd(this, _pool, void 0);
+    if (options.minThreads !== void 0 && options.maxThreads !== void 0 && options.minThreads > options.maxThreads) {
+      throw new RangeError("options.minThreads and options.maxThreads must not conflict");
+    }
+    __privateSet(this, _pool, new ThreadPool(this, options));
+  }
+  run(task, options = kDefaultRunOptions) {
+    const { transferList, filename, name, signal } = options;
+    return __privateGet(this, _pool).runTask(task, { transferList, filename, name, signal });
+  }
+  destroy() {
+    return __privateGet(this, _pool).destroy();
+  }
+  get options() {
+    return __privateGet(this, _pool).options;
+  }
+  get threads() {
+    const ret = [];
+    for (const workerInfo of __privateGet(this, _pool).workers) {
+      ret.push(workerInfo.worker);
+    }
+    return ret;
+  }
+  get queueSize() {
+    const pool = __privateGet(this, _pool);
+    return Math.max(pool.taskQueue.size - pool.pendingCapacity(), 0);
+  }
+  get completed() {
+    return __privateGet(this, _pool).completed;
+  }
+  get duration() {
+    return performance.now() - __privateGet(this, _pool).start;
+  }
+  static get isWorkerThread() {
+    return process.__tinypool_state__?.isWorkerThread || false;
+  }
+  static get workerData() {
+    return process.__tinypool_state__?.workerData || void 0;
+  }
+  static get version() {
+    const { version } = JSON.parse(readFileSync(join(__dirname, "../package.json"), "utf-8"));
+    return version;
+  }
+  static move(val) {
+    if (val != null && typeof val === "object" && typeof val !== "function") {
+      if (!isTransferable(val)) {
+        if (types.isArrayBufferView(val)) {
+          val = new ArrayBufferViewTransferable(val);
+        } else {
+          val = new DirectlyTransferable(val);
+        }
+      }
+      markMovable(val);
+    }
+    return val;
+  }
+  static get transferableSymbol() {
+    return kTransferable;
+  }
+  static get valueSymbol() {
+    return kValue;
+  }
+  static get queueOptionsSymbol() {
+    return kQueueOptions;
+  }
+};
+_pool = new WeakMap();
+var _workerId = process.__tinypool_state__?.workerId;
+var src_default = Tinypool;
+export {
+  Tinypool,
+  src_default as default,
+  isMovable,
+  isTaskQueue,
+  isTransferable,
+  kFieldCount,
+  kQueueOptions,
+  kRequestCountField,
+  kResponseCountField,
+  kTransferable,
+  kValue,
+  markMovable,
+  _workerId as workerId
+};

node_modules/tinypool/dist/esm/worker.js

@@ -0,0 +1,142 @@
+"use strict";
+import {
+  isMovable,
+  kRequestCountField,
+  kResponseCountField,
+  kTransferable,
+  kValue
+} from "./chunk-QYFJIXNO.js";
+
+// src/worker.ts
+import {
+  parentPort,
+  receiveMessageOnPort,
+  workerData as tinypoolData
+} from "worker_threads";
+import { pathToFileURL } from "url";
+
+// src/utils.ts
+function stdout() {
+  return console._stdout || process.stdout || void 0;
+}
+function stderr() {
+  return console._stderr || process.stderr || void 0;
+}
+
+// src/worker.ts
+var [tinypoolPrivateData, workerData] = tinypoolData;
+process.__tinypool_state__ = {
+  isWorkerThread: true,
+  workerData,
+  workerId: tinypoolPrivateData.workerId
+};
+var handlerCache = /* @__PURE__ */ new Map();
+var useAtomics = process.env.PISCINA_DISABLE_ATOMICS !== "1";
+var importESMCached;
+function getImportESM() {
+  if (importESMCached === void 0) {
+    importESMCached = new Function("specifier", "return import(specifier)");
+  }
+  return importESMCached;
+}
+async function getHandler(filename, name) {
+  let handler = handlerCache.get(`${filename}/${name}`);
+  if (handler !== void 0) {
+    return handler;
+  }
+  try {
+    const handlerModule = await import(filename);
+    handler = typeof handlerModule.default !== "function" && handlerModule.default || handlerModule;
+    if (typeof handler !== "function") {
+      handler = await handler[name];
+    }
+  } catch {
+  }
+  if (typeof handler !== "function") {
+    handler = await getImportESM()(pathToFileURL(filename).href);
+    if (typeof handler !== "function") {
+      handler = await handler[name];
+    }
+  }
+  if (typeof handler !== "function") {
+    return null;
+  }
+  if (handlerCache.size > 1e3) {
+    const [[key]] = handlerCache;
+    handlerCache.delete(key);
+  }
+  handlerCache.set(`${filename}/${name}`, handler);
+  return handler;
+}
+parentPort.on("message", (message) => {
+  useAtomics = process.env.PISCINA_DISABLE_ATOMICS === "1" ? false : message.useAtomics;
+  const { port, sharedBuffer, filename, name } = message;
+  (async function() {
+    if (filename !== null) {
+      await getHandler(filename, name);
+    }
+    const readyMessage = { ready: true };
+    parentPort.postMessage(readyMessage);
+    port.on("message", onMessage.bind(null, port, sharedBuffer));
+    atomicsWaitLoop(port, sharedBuffer);
+  })().catch(throwInNextTick);
+});
+var currentTasks = 0;
+var lastSeenRequestCount = 0;
+function atomicsWaitLoop(port, sharedBuffer) {
+  if (!useAtomics)
+    return;
+  while (currentTasks === 0) {
+    Atomics.wait(sharedBuffer, kRequestCountField, lastSeenRequestCount);
+    lastSeenRequestCount = Atomics.load(sharedBuffer, kRequestCountField);
+    let entry;
+    while ((entry = receiveMessageOnPort(port)) !== void 0) {
+      onMessage(port, sharedBuffer, entry.message);
+    }
+  }
+}
+function onMessage(port, sharedBuffer, message) {
+  currentTasks++;
+  const { taskId, task, filename, name } = message;
+  (async function() {
+    let response;
+    let transferList = [];
+    try {
+      const handler = await getHandler(filename, name);
+      if (handler === null) {
+        throw new Error(`No handler function exported from ${filename}`);
+      }
+      let result = await handler(task);
+      if (isMovable(result)) {
+        transferList = transferList.concat(result[kTransferable]);
+        result = result[kValue];
+      }
+      response = {
+        taskId,
+        result,
+        error: null
+      };
+      if (stdout()?.writableLength > 0) {
+        await new Promise((resolve) => process.stdout.write("", resolve));
+      }
+      if (stderr()?.writableLength > 0) {
+        await new Promise((resolve) => process.stderr.write("", resolve));
+      }
+    } catch (error) {
+      response = {
+        taskId,
+        result: null,
+        error
+      };
+    }
+    currentTasks--;
+    port.postMessage(response, transferList);
+    Atomics.add(sharedBuffer, kResponseCountField, 1);
+    atomicsWaitLoop(port, sharedBuffer);
+  })().catch(throwInNextTick);
+}
+function throwInNextTick(error) {
+  process.nextTick(() => {
+    throw error;
+  });
+}

node_modules/tinypool/dist/index.d.ts

@@ -0,0 +1,172 @@
+import { MessagePort, Worker } from 'worker_threads';
+import { EventEmitter } from 'events';
+import { AsyncResource } from 'async_hooks';
+
+declare const kEventEmitter: unique symbol;
+declare const kAsyncResource: unique symbol;
+declare type EventEmitterOptions = typeof EventEmitter extends {
+    new (options?: infer T): EventEmitter;
+} ? T : never;
+declare type AsyncResourceOptions = typeof AsyncResource extends {
+    new (name: string, options?: infer T): AsyncResource;
+} ? T : never;
+declare type Options$1 = EventEmitterOptions & AsyncResourceOptions & {
+    name?: string;
+};
+declare class EventEmitterReferencingAsyncResource extends AsyncResource {
+    [kEventEmitter]: EventEmitter;
+    constructor(ee: EventEmitter, type: string, options?: AsyncResourceOptions);
+    get eventEmitter(): EventEmitter;
+}
+declare class EventEmitterAsyncResource extends EventEmitter {
+    [kAsyncResource]: EventEmitterReferencingAsyncResource;
+    constructor(options?: Options$1 | string);
+    emit(event: string | symbol, ...args: any[]): boolean;
+    emitDestroy(): void;
+    asyncId(): number;
+    triggerAsyncId(): number;
+    get asyncResource(): EventEmitterReferencingAsyncResource;
+    static get EventEmitterAsyncResource(): typeof EventEmitterAsyncResource;
+}
+
+interface StartupMessage {
+    filename: string | null;
+    name: string;
+    port: MessagePort;
+    sharedBuffer: Int32Array;
+    useAtomics: boolean;
+}
+interface RequestMessage {
+    taskId: number;
+    task: any;
+    filename: string;
+    name: string;
+}
+interface ReadyMessage {
+    ready: true;
+}
+interface ResponseMessage {
+    taskId: number;
+    result: any;
+    error: unknown | null;
+}
+interface TinypoolPrivateData {
+    workerId: number;
+}
+declare type TinypoolData = [TinypoolPrivateData, any];
+declare const kTransferable: unique symbol;
+declare const kValue: unique symbol;
+declare const kQueueOptions: unique symbol;
+declare function isTransferable(value: any): boolean;
+declare function isMovable(value: any): boolean;
+declare function markMovable(value: object): void;
+interface Transferable {
+    readonly [kTransferable]: object;
+    readonly [kValue]: object;
+}
+interface Task {
+    readonly [kQueueOptions]: object | null;
+}
+interface TaskQueue {
+    readonly size: number;
+    shift(): Task | null;
+    remove(task: Task): void;
+    push(task: Task): void;
+}
+declare function isTaskQueue(value: any): boolean;
+declare const kRequestCountField = 0;
+declare const kResponseCountField = 1;
+declare const kFieldCount = 2;
+
+declare global {
+    namespace NodeJS {
+        interface Process {
+            __tinypool_state__: {
+                isWorkerThread: boolean;
+                workerData: any;
+                workerId: number;
+            };
+        }
+    }
+}
+interface AbortSignalEventTargetAddOptions {
+    once: boolean;
+}
+interface AbortSignalEventTarget {
+    addEventListener: (name: 'abort', listener: () => void, options?: AbortSignalEventTargetAddOptions) => void;
+    removeEventListener: (name: 'abort', listener: () => void) => void;
+    aborted?: boolean;
+}
+interface AbortSignalEventEmitter {
+    off: (name: 'abort', listener: () => void) => void;
+    once: (name: 'abort', listener: () => void) => void;
+}
+declare type AbortSignalAny = AbortSignalEventTarget | AbortSignalEventEmitter;
+declare type ResourceLimits = Worker extends {
+    resourceLimits?: infer T;
+} ? T : {};
+declare type EnvSpecifier = typeof Worker extends {
+    new (filename: never, options?: {
+        env: infer T;
+    }): Worker;
+} ? T : never;
+interface Options {
+    filename?: string | null;
+    name?: string;
+    minThreads?: number;
+    maxThreads?: number;
+    idleTimeout?: number;
+    maxQueue?: number | 'auto';
+    concurrentTasksPerWorker?: number;
+    useAtomics?: boolean;
+    resourceLimits?: ResourceLimits;
+    argv?: string[];
+    execArgv?: string[];
+    env?: EnvSpecifier;
+    workerData?: any;
+    taskQueue?: TaskQueue;
+    trackUnmanagedFds?: boolean;
+    isolateWorkers?: boolean;
+}
+interface FilledOptions extends Options {
+    filename: string | null;
+    name: string;
+    minThreads: number;
+    maxThreads: number;
+    idleTimeout: number;
+    maxQueue: number;
+    concurrentTasksPerWorker: number;
+    useAtomics: boolean;
+    taskQueue: TaskQueue;
+}
+interface RunOptions {
+    transferList?: TransferList;
+    filename?: string | null;
+    signal?: AbortSignalAny | null;
+    name?: string | null;
+}
+declare type TransferList = MessagePort extends {
+    postMessage(value: any, transferList: infer T): any;
+} ? T : never;
+declare type TransferListItem = TransferList extends (infer T)[] ? T : never;
+declare class Tinypool extends EventEmitterAsyncResource {
+    #private;
+    constructor(options?: Options);
+    run(task: any, options?: RunOptions): Promise<any>;
+    destroy(): Promise<void>;
+    get options(): FilledOptions;
+    get threads(): Worker[];
+    get queueSize(): number;
+    get completed(): number;
+    get duration(): number;
+    static get isWorkerThread(): boolean;
+    static get workerData(): any;
+    static get version(): string;
+    static move(val: Transferable | TransferListItem | ArrayBufferView | ArrayBuffer | MessagePort): MessagePort | ArrayBuffer | Transferable | ArrayBufferView;
+    static get transferableSymbol(): symbol;
+    static get valueSymbol(): symbol;
+    static get queueOptionsSymbol(): symbol;
+}
+declare const _workerId: number;
+
+export { Options, ReadyMessage, RequestMessage, ResponseMessage, StartupMessage, Task, TaskQueue, Tinypool, TinypoolData, TinypoolPrivateData, Transferable, Tinypool as default, isMovable, isTaskQueue, isTransferable, kFieldCount, kQueueOptions, kRequestCountField, kResponseCountField, kTransferable, kValue, markMovable, _workerId as workerId };

node_modules/tinypool/dist/worker.d.ts

@@ -0,0 +1 @@
+

node_modules/tinypool/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "tinypool",
+  "version": "0.3.1",
+  "description": "A minimal and tiny Node.js Worker Thread Pool implementation, a fork of piscina, but with fewer features",
+  "type": "module",
+  "main": "./dist/esm/index.js",
+  "module": "./dist/esm/index.js",
+  "types": "./dist/index.d.ts",
+  "files": [
+    "dist/**"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/aslemammad/tinypool.git"
+  },
+  "keywords": [
+    "fast",
+    "worker threads",
+    "thread pool"
+  ],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/aslemammad/tinypool/issues"
+  },
+  "homepage": "https://github.com/aslemammad/tinypool#readme",
+  "engines": {
+    "node": ">=14.0.0"
+  }
+}