69 lines
1.4 KiB
Plaintext
69 lines
1.4 KiB
Plaintext
'use strict'
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const { EventEmitter } = require('events')
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const { parentPort } = require('worker_threads')
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function createDestination (mode) {
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const destination = new EventEmitter()
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destination.writableEnded = false
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destination.writableNeedDrain = false
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destination.write = function () {
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if (mode === 'drain') {
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destination.writableNeedDrain = true
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setTimeout(() => {
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destination.writableNeedDrain = false
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parentPort.postMessage({
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code: 'EVENT',
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name: 'destination-drain'
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})
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destination.emit('drain')
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}, 50)
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}
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return true
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}
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destination.end = function () {
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destination.writableEnded = true
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destination.emit('close')
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}
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if (mode === 'flush') {
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destination.flush = function (cb) {
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setTimeout(() => {
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parentPort.postMessage({
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code: 'EVENT',
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name: 'destination-flushed'
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})
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cb()
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}, 50)
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}
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}
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if (mode === 'flush-sync') {
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destination.flushSync = function () {
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parentPort.postMessage({
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code: 'EVENT',
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name: 'destination-flush-sync'
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})
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}
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}
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if (mode === 'exit-on-flush') {
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destination.flush = function (_cb) {
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setTimeout(() => {
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process.exit(0)
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}, 20)
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}
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}
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return destination
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}
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async function run (opts) {
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return createDestination(opts.mode)
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}
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module.exports = run
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