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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// Copyright Joyent and Node contributors. All rights reserved. MIT license.
import { notImplemented } from "../_utils.ts";import { inspect } from "./util/inspect.mjs";import { validateNumber } from "./validators.mjs";import { ERR_OUT_OF_RANGE } from "./errors.ts";import { emitWarning } from "../process.ts";
// Timeout values > TIMEOUT_MAX are set to 1.export const TIMEOUT_MAX = 2 ** 31 - 1;
export const kTimerId = Symbol("timerId");export const kTimeout = Symbol("timeout");const kRefed = Symbol("refed");
// Timer constructor function.// The entire prototype is defined in lib/timers.jsexport function Timeout(id) {  this[kTimerId] = id;  this[kRefed] = true;}
// Make sure the linked list only shows the minimal necessary information.Timeout.prototype[inspect.custom] = function (_, options) {  return inspect(this, {    ...options,    // Only inspect one level.    depth: 0,    // It should not recurse.    customInspect: false,  });};
Timeout.prototype.refresh = function () {  notImplemented();};
Timeout.prototype.unref = function () {  if (this[kRefed]) {    this[kRefed] = false;    Deno.unrefTimer(this[kTimerId]);  }  return this;};
Timeout.prototype.ref = function () {  if (!this[kRefed]) {    this[kRefed] = true;    Deno.refTimer(this[kTimerId]);  }  return this;};
Timeout.prototype.hasRef = function () {  return this[kRefed];};
Timeout.prototype[Symbol.toPrimitive] = function () {  return this[kTimerId];};
/** * @param {number} msecs * @param {string} name * @returns */export function getTimerDuration(msecs, name) {  validateNumber(msecs, name);
  if (msecs < 0 || !Number.isFinite(msecs)) {    throw new ERR_OUT_OF_RANGE(name, "a non-negative finite number", msecs);  }
  // Ensure that msecs fits into signed int32  if (msecs > TIMEOUT_MAX) {    emitWarning(      `${msecs} does not fit into a 32-bit signed integer.` +        `\nTimer duration was truncated to ${TIMEOUT_MAX}.`,      "TimeoutOverflowWarning",    );
    return TIMEOUT_MAX;  }
  return msecs;}
export default {  TIMEOUT_MAX,  kTimerId,  kTimeout,  Timeout,  getTimerDuration,};