How to use expiration method in Best

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ReactFiberPendingPriority.js

Source:ReactFiberPendingPriority.js

1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9import type {FiberRoot} from './ReactFiberRoot';10import type {ExpirationTime} from './ReactFiberExpirationTime';11import {NoWork} from './ReactFiberExpirationTime';12// TODO: Offscreen updates should never suspend. However, a promise that13// suspended inside an offscreen subtree should be able to ping at the priority14// of the outer render.15export function markPendingPriorityLevel(16  root: FiberRoot,17  expirationTime: ExpirationTime,18): void {19  // If there's a gap between completing a failed root and retrying it,20  // additional updates may be scheduled. Clear `didError`, in case the update21  // is sufficient to fix the error.22  root.didError = false;23  // Update the latest and earliest pending times24  const earliestPendingTime = root.earliestPendingTime;25  if (earliestPendingTime === NoWork) {26    // No other pending updates.27    root.earliestPendingTime = root.latestPendingTime = expirationTime;28  } else {29    if (earliestPendingTime < expirationTime) {30      // This is the earliest pending update.31      root.earliestPendingTime = expirationTime;32    } else {33      const latestPendingTime = root.latestPendingTime;34      if (latestPendingTime > expirationTime) {35        // This is the latest pending update36        root.latestPendingTime = expirationTime;37      }38    }39  }40  findNextExpirationTimeToWorkOn(expirationTime, root);41}42export function markCommittedPriorityLevels(43  root: FiberRoot,44  earliestRemainingTime: ExpirationTime,45): void {46  root.didError = false;47  if (earliestRemainingTime === NoWork) {48    // Fast path. There's no remaining work. Clear everything.49    root.earliestPendingTime = NoWork;50    root.latestPendingTime = NoWork;51    root.earliestSuspendedTime = NoWork;52    root.latestSuspendedTime = NoWork;53    root.latestPingedTime = NoWork;54    findNextExpirationTimeToWorkOn(NoWork, root);55    return;56  }57  if (earliestRemainingTime < root.latestPingedTime) {58    root.latestPingedTime = NoWork;59  }60  // Let's see if the previous latest known pending level was just flushed.61  const latestPendingTime = root.latestPendingTime;62  if (latestPendingTime !== NoWork) {63    if (latestPendingTime > earliestRemainingTime) {64      // We've flushed all the known pending levels.65      root.earliestPendingTime = root.latestPendingTime = NoWork;66    } else {67      const earliestPendingTime = root.earliestPendingTime;68      if (earliestPendingTime > earliestRemainingTime) {69        // We've flushed the earliest known pending level. Set this to the70        // latest pending time.71        root.earliestPendingTime = root.latestPendingTime;72      }73    }74  }75  // Now let's handle the earliest remaining level in the whole tree. We need to76  // decide whether to treat it as a pending level or as suspended. Check77  // it falls within the range of known suspended levels.78  const earliestSuspendedTime = root.earliestSuspendedTime;79  if (earliestSuspendedTime === NoWork) {80    // There's no suspended work. Treat the earliest remaining level as a81    // pending level.82    markPendingPriorityLevel(root, earliestRemainingTime);83    findNextExpirationTimeToWorkOn(NoWork, root);84    return;85  }86  const latestSuspendedTime = root.latestSuspendedTime;87  if (earliestRemainingTime < latestSuspendedTime) {88    // The earliest remaining level is later than all the suspended work. That89    // means we've flushed all the suspended work.90    root.earliestSuspendedTime = NoWork;91    root.latestSuspendedTime = NoWork;92    root.latestPingedTime = NoWork;93    // There's no suspended work. Treat the earliest remaining level as a94    // pending level.95    markPendingPriorityLevel(root, earliestRemainingTime);96    findNextExpirationTimeToWorkOn(NoWork, root);97    return;98  }99  if (earliestRemainingTime > earliestSuspendedTime) {100    // The earliest remaining time is earlier than all the suspended work.101    // Treat it as a pending update.102    markPendingPriorityLevel(root, earliestRemainingTime);103    findNextExpirationTimeToWorkOn(NoWork, root);104    return;105  }106  // The earliest remaining time falls within the range of known suspended107  // levels. We should treat this as suspended work.108  findNextExpirationTimeToWorkOn(NoWork, root);109}110export function hasLowerPriorityWork(111  root: FiberRoot,112  erroredExpirationTime: ExpirationTime,113): boolean {114  const latestPendingTime = root.latestPendingTime;115  const latestSuspendedTime = root.latestSuspendedTime;116  const latestPingedTime = root.latestPingedTime;117  return (118    (latestPendingTime !== NoWork &&119      latestPendingTime < erroredExpirationTime) ||120    (latestSuspendedTime !== NoWork &&121      latestSuspendedTime < erroredExpirationTime) ||122    (latestPingedTime !== NoWork && latestPingedTime < erroredExpirationTime)123  );124}125export function isPriorityLevelSuspended(126  root: FiberRoot,127  expirationTime: ExpirationTime,128): boolean {129  const earliestSuspendedTime = root.earliestSuspendedTime;130  const latestSuspendedTime = root.latestSuspendedTime;131  return (132    earliestSuspendedTime !== NoWork &&133    expirationTime <= earliestSuspendedTime &&134    expirationTime >= latestSuspendedTime135  );136}137export function markSuspendedPriorityLevel(138  root: FiberRoot,139  suspendedTime: ExpirationTime,140): void {141  root.didError = false;142  clearPing(root, suspendedTime);143  // First, check the known pending levels and update them if needed.144  const earliestPendingTime = root.earliestPendingTime;145  const latestPendingTime = root.latestPendingTime;146  if (earliestPendingTime === suspendedTime) {147    if (latestPendingTime === suspendedTime) {148      // Both known pending levels were suspended. Clear them.149      root.earliestPendingTime = root.latestPendingTime = NoWork;150    } else {151      // The earliest pending level was suspended. Clear by setting it to the152      // latest pending level.153      root.earliestPendingTime = latestPendingTime;154    }155  } else if (latestPendingTime === suspendedTime) {156    // The latest pending level was suspended. Clear by setting it to the157    // latest pending level.158    root.latestPendingTime = earliestPendingTime;159  }160  // Finally, update the known suspended levels.161  const earliestSuspendedTime = root.earliestSuspendedTime;162  const latestSuspendedTime = root.latestSuspendedTime;163  if (earliestSuspendedTime === NoWork) {164    // No other suspended levels.165    root.earliestSuspendedTime = root.latestSuspendedTime = suspendedTime;166  } else {167    if (earliestSuspendedTime < suspendedTime) {168      // This is the earliest suspended level.169      root.earliestSuspendedTime = suspendedTime;170    } else if (latestSuspendedTime > suspendedTime) {171      // This is the latest suspended level172      root.latestSuspendedTime = suspendedTime;173    }174  }175  findNextExpirationTimeToWorkOn(suspendedTime, root);176}177export function markPingedPriorityLevel(178  root: FiberRoot,179  pingedTime: ExpirationTime,180): void {181  root.didError = false;182  // TODO: When we add back resuming, we need to ensure the progressed work183  // is thrown out and not reused during the restarted render. One way to184  // invalidate the progressed work is to restart at expirationTime + 1.185  const latestPingedTime = root.latestPingedTime;186  if (latestPingedTime === NoWork || latestPingedTime > pingedTime) {187    root.latestPingedTime = pingedTime;188  }189  findNextExpirationTimeToWorkOn(pingedTime, root);190}191function clearPing(root, completedTime) {192  const latestPingedTime = root.latestPingedTime;193  if (latestPingedTime >= completedTime) {194    root.latestPingedTime = NoWork;195  }196}197export function findEarliestOutstandingPriorityLevel(198  root: FiberRoot,199  renderExpirationTime: ExpirationTime,200): ExpirationTime {201  let earliestExpirationTime = renderExpirationTime;202  const earliestPendingTime = root.earliestPendingTime;203  const earliestSuspendedTime = root.earliestSuspendedTime;204  if (earliestPendingTime > earliestExpirationTime) {205    earliestExpirationTime = earliestPendingTime;206  }207  if (earliestSuspendedTime > earliestExpirationTime) {208    earliestExpirationTime = earliestSuspendedTime;209  }210  return earliestExpirationTime;211}212export function didExpireAtExpirationTime(213  root: FiberRoot,214  currentTime: ExpirationTime,215): void {216  const expirationTime = root.expirationTime;217  if (expirationTime !== NoWork && currentTime <= expirationTime) {218    // The root has expired. Flush all work up to the current time.219    root.nextExpirationTimeToWorkOn = currentTime;220  }221}222function findNextExpirationTimeToWorkOn(completedExpirationTime, root) {223  const earliestSuspendedTime = root.earliestSuspendedTime;224  const latestSuspendedTime = root.latestSuspendedTime;225  const earliestPendingTime = root.earliestPendingTime;226  const latestPingedTime = root.latestPingedTime;227  // Work on the earliest pending time. Failing that, work on the latest228  // pinged time.229  let nextExpirationTimeToWorkOn =230    earliestPendingTime !== NoWork ? earliestPendingTime : latestPingedTime;231  // If there is no pending or pinged work, check if there's suspended work232  // that's lower priority than what we just completed.233  if (234    nextExpirationTimeToWorkOn === NoWork &&235    (completedExpirationTime === NoWork ||236      latestSuspendedTime < completedExpirationTime)237  ) {238    // The lowest priority suspended work is the work most likely to be239    // committed next. Let's start rendering it again, so that if it times out,240    // it's ready to commit.241    nextExpirationTimeToWorkOn = latestSuspendedTime;242  }243  let expirationTime = nextExpirationTimeToWorkOn;244  if (expirationTime !== NoWork && earliestSuspendedTime > expirationTime) {245    // Expire using the earliest known expiration time.246    expirationTime = earliestSuspendedTime;247  }248  root.nextExpirationTimeToWorkOn = nextExpirationTimeToWorkOn;249  root.expirationTime = expirationTime;...

ReactFiberExpirationTime.js

Source:ReactFiberExpirationTime.js

1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9import MAX_SIGNED_31_BIT_INT from './maxSigned31BitInt';10export type ExpirationTime = number;11export const NoWork = 0;12export const Never = 1;13export const Sync = MAX_SIGNED_31_BIT_INT;14const UNIT_SIZE = 10;15const MAGIC_NUMBER_OFFSET = MAX_SIGNED_31_BIT_INT - 1;16// 1 unit of expiration time represents 10ms.17export function msToExpirationTime(ms: number): ExpirationTime {18  // Always add an offset so that we don't clash with the magic number for NoWork.19  return MAGIC_NUMBER_OFFSET - ((ms / UNIT_SIZE) | 0);20}21export function expirationTimeToMs(expirationTime: ExpirationTime): number {22  return (MAGIC_NUMBER_OFFSET - expirationTime) * UNIT_SIZE;23}24function ceiling(num: number, precision: number): number {25  return (((num / precision) | 0) + 1) * precision;26}27function computeExpirationBucket(28  currentTime,29  expirationInMs,30  bucketSizeMs,31): ExpirationTime {32  return (33    MAGIC_NUMBER_OFFSET -34    ceiling(35      MAGIC_NUMBER_OFFSET - currentTime + expirationInMs / UNIT_SIZE,36      bucketSizeMs / UNIT_SIZE,37    )38  );39}40export const LOW_PRIORITY_EXPIRATION = 5000;41export const LOW_PRIORITY_BATCH_SIZE = 250;42export function computeAsyncExpiration(43  currentTime: ExpirationTime,44): ExpirationTime {45  return computeExpirationBucket(46    currentTime,47    LOW_PRIORITY_EXPIRATION,48    LOW_PRIORITY_BATCH_SIZE,49  );50}51// We intentionally set a higher expiration time for interactive updates in52// dev than in production.53//54// If the main thread is being blocked so long that you hit the expiration,55// it's a problem that could be solved with better scheduling.56//57// People will be more likely to notice this and fix it with the long58// expiration time in development.59//60// In production we opt for better UX at the risk of masking scheduling61// problems, by expiring fast.62export const HIGH_PRIORITY_EXPIRATION = __DEV__ ? 500 : 150;63export const HIGH_PRIORITY_BATCH_SIZE = 100;64export function computeInteractiveExpiration(currentTime: ExpirationTime) {65  return computeExpirationBucket(66    currentTime,67    HIGH_PRIORITY_EXPIRATION,68    HIGH_PRIORITY_BATCH_SIZE,69  );...

Using AI Code Generation

1var bestBefore = new BestBefore();2console.log(bestBefore.expiration());3var bestBefore = new BestBefore();4console.log(bestBefore.expiration());5var bestBefore = new BestBefore();6console.log(bestBefore.expiration());7var bestBefore = new BestBefore();8console.log(bestBefore.expiration());9var bestBefore = new BestBefore();10console.log(bestBefore.expiration());11var bestBefore = new BestBefore();12console.log(bestBefore.expiration());13var bestBefore = new BestBefore();14console.log(bestBefore.expiration());15var bestBefore = new BestBefore();16console.log(bestBefore.expiration());17var bestBefore = new BestBefore();18console.log(bestBefore.expiration());19var bestBefore = new BestBefore();20console.log(bestBefore.expiration());21var bestBefore = new BestBefore();22console.log(bestBefore.expiration());23var bestBefore = new BestBefore();24console.log(bestBefore.expiration());25var bestBefore = new BestBefore();26console.log(bestBefore.expiration());27var bestBefore = new BestBefore();28console.log(bestBefore.expiration());29var bestBefore = new BestBefore();30console.log(bestBefore.expiration());31var bestBefore = new BestBefore();32console.log(bestBefore.expiration());

Using AI Code Generation

1var express = require('express');2var request = require('request');3var app = express();4var bodyParser = require('body-parser');5var mongoose = require('mongoose');6var Schema = mongoose.Schema;7app.use(bodyParser.json());8app.use(bodyParser.urlencoded({ extended: true }));9var options = {10  headers: {11  }12};13request(options, function (error, response, body) {14  if (!error && response.statusCode == 200) {15    var info = JSON.parse(body);16    console.log(info);17  }18})19app.listen(3000, function () {20  console.log('Example app listening on port 3000!');21});

Using AI Code Generation

1var BestBefore = require("./BestBefore");2var bestBefore = new BestBefore("2012-12-12");3console.log("Is expired: " + bestBefore.isExpired());4var BestBefore = require("./BestBefore");5var bestBefore = new BestBefore("2012-12-12");6console.log("Is expired: " + bestBefore.isExpired());7var BestBefore = require("./BestBefore");8var bestBefore = new BestBefore("2012-12-12");9console.log("Is expired: " + bestBefore.isExpired());10var BestBefore = require("./BestBefore");11var bestBefore = new BestBefore("2012-12-12");12console.log("Is expired: " + bestBefore.isExpired());13var BestBefore = require("./BestBefore");14var bestBefore = new BestBefore("2012-12-12");15console.log("Is expired: " + bestBefore.isExpired());16var BestBefore = require("./BestBefore");17var bestBefore = new BestBefore("2012-12-12");18console.log("Is expired: " + bestBefore.isExpired());19var BestBefore = require("./BestBefore");20var bestBefore = new BestBefore("2012-12-12");21console.log("Is expired: " + bestBefore.isExpired());22var BestBefore = require("./BestBefore");23var bestBefore = new BestBefore("2012-12-12");24console.log("Is expired: " + bestBefore.isExpired());25var BestBefore = require("./BestBefore");26var bestBefore = new BestBefore("2012-12-12");27console.log("Is expired: " + bestBefore.isExpired());28var BestBefore = require("./BestBefore");

Using AI Code Generation

1var BestBefore = require('bestbefore').BestBefore;2var bb = new BestBefore();3bb.expiration('2012-02-29', function(err, date) {4    console.log(date);5});6var BestBefore = require('bestbefore').BestBefore;7var bb = new BestBefore();8bb.expiration('2012-02-29', '2012-01-01', function(err, date) {9    console.log(date);10});11var BestBefore = require('bestbefore').BestBefore;12var bb = new BestBefore();13bb.expiration('2012-02-29', '2012-01-01', '2011-01-01', function(err, date) {14    console.log(date);15});16var BestBefore = require('bestbefore').BestBefore;17var bb = new BestBefore();18bb.expiration('2012-02-29', '2012-01-01', '2011-01-01', '2010-01-01', function(err, date) {19    console.log(date);20});21var BestBefore = require('bestbefore').BestBefore;22var bb = new BestBefore();23bb.expiration('2012-02-29', '2012-01-01', '2011-01-01', '2010-01-01', '2009-01-01', function(err, date) {24    console.log(date);25});26var BestBefore = require('bestbefore').BestBefore;27var bb = new BestBefore();28bb.expiration('2012-02-29', '2012-01-01', '2011-01-01', '2010-01-01', '2009-01-01', '2008-01-01', function(err, date) {29    console.log(date);30});31var BestBefore = require('bestbefore').BestBefore;32var bb = new BestBefore();33bb.expiration('

Using AI Code Generation

1var BestBefore = require('./BestBefore.js');2var myBestBefore = new BestBefore(5, "days");3var BestBefore = require('./BestBefore.js');4var myBestBefore = new BestBefore(1, "year");5var BestBefore = require('./BestBefore.js');6var myBestBefore = new BestBefore(2, "years");7var BestBefore = require('./BestBefore.js');8var myBestBefore = new BestBefore(1, "month");9var BestBefore = require('./BestBefore.js');10var myBestBefore = new BestBefore(2, "months");11var BestBefore = require('./BestBefore.js');12var myBestBefore = new BestBefore(1, "week");13var BestBefore = require('./BestBefore.js');14var myBestBefore = new BestBefore(2, "weeks");15var BestBefore = require('./BestBefore.js');16var myBestBefore = new BestBefore(1, "day");17var BestBefore = require('./BestBefore.js');18var myBestBefore = new BestBefore(2, "days");19var BestBefore = require('./BestBefore.js');

Using AI Code Generation

1var BestBefore = require('./bestbefore.js');2var bb = new BestBefore(5);3bb.setExpirationDate();4console.log(bb.isExpired());5bb.setExpirationDate(2);6console.log(bb.isExpired());7bb.setExpirationDate(7);8console.log(bb.isExpired());9bb.setExpirationDate(8);10console.log(bb.isExpired());

Using AI Code Generation

1var BestBefore = require('bestbefore');2var bb = new BestBefore();3bb.expire(5);4bb.on('expired', function(){5  console.log('expired');6});7bb.start();8setTimeout(function(){9  bb.stop();10}, 2000);11setTimeout(function(){12  bb.start();13}, 3000);14setTimeout(function(){15  bb.stop();16}, 7000);17setTimeout(function(){18  bb.start();19}, 8000);20setTimeout(function(){21  bb.stop();22}, 10000);23var BestBefore = require('bestbefore');24var bb = new BestBefore();25bb.expire(5);26bb.on('expired', function(){27  console.log('expired');28});29bb.start();30setTimeout(function(){31  bb.stop();32}, 2000);33setTimeout(function(){34  bb.start();35}, 3000);36setTimeout(function(){37  bb.stop();38}, 7000);39setTimeout(function(){40  bb.start();41}, 8000);42setTimeout(function(){43  bb.stop();44}, 10000);45setTimeout(function(){46  bb.start();47}, 11000);48setTimeout(function(){49  bb.stop();50}, 15000);51var BestBefore = require('bestbefore');52var bb = new BestBefore();53bb.expire(5);54bb.on('expired', function(){55  console.log('expired');56});57bb.start();58setTimeout(function(){59  bb.stop();60}, 200

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