| // Copyright Joyent, Inc. and other Node contributors. |
| // |
| // 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. |
| |
| 'use strict'; |
| require('../common'); |
| const assert = require('assert'); |
| |
| // setImmediate should run clear its queued cbs once per event loop turn |
| // but immediates queued while processing the current queue should happen |
| // on the next turn of the event loop. |
| |
| // hit should be the exact same size of QUEUE, if we're letting things |
| // recursively add to the immediate QUEUE hit will be > QUEUE |
| |
| let ticked = false; |
| |
| let hit = 0; |
| const QUEUE = 10; |
| |
| function run() { |
| if (hit === 0) { |
| setTimeout(() => { ticked = true; }, 1); |
| const now = Date.now(); |
| while (Date.now() - now < 2); |
| } |
| |
| if (ticked) return; |
| |
| hit += 1; |
| setImmediate(run); |
| } |
| |
| for (let i = 0; i < QUEUE; i++) |
| setImmediate(run); |
| |
| process.on('exit', function() { |
| console.log('hit', hit); |
| assert.strictEqual(hit, QUEUE); |
| }); |