54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
'use strict'
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const timers = require('timers')
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const util = require('util')
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process.atomBinding = require('@electron/internal/common/atom-binding-setup')(process.binding, process.type)
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// setImmediate and process.nextTick makes use of uv_check and uv_prepare to
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// run the callbacks, however since we only run uv loop on requests, the
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// callbacks wouldn't be called until something else activated the uv loop,
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// which would delay the callbacks for arbitrary long time. So we should
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// initiatively activate the uv loop once setImmediate and process.nextTick is
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// called.
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const wrapWithActivateUvLoop = function (func) {
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return wrap(func, function (func) {
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return function () {
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process.activateUvLoop()
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return func.apply(this, arguments)
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}
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})
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}
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function wrap (func, wrapper) {
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const wrapped = wrapper(func)
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if (func[util.promisify.custom]) {
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wrapped[util.promisify.custom] = wrapper(func[util.promisify.custom])
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}
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return wrapped
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}
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process.nextTick = wrapWithActivateUvLoop(process.nextTick)
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global.setImmediate = wrapWithActivateUvLoop(timers.setImmediate)
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global.clearImmediate = timers.clearImmediate
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if (process.type === 'browser') {
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// setTimeout needs to update the polling timeout of the event loop, when
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// called under Chromium's event loop the node's event loop won't get a chance
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// to update the timeout, so we have to force the node's event loop to
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// recalculate the timeout in browser process.
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global.setTimeout = wrapWithActivateUvLoop(timers.setTimeout)
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global.setInterval = wrapWithActivateUvLoop(timers.setInterval)
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}
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if (process.platform === 'win32') {
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// Always returns EOF for stdin stream.
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const { Readable } = require('stream')
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const stdin = new Readable()
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stdin.push(null)
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process.__defineGetter__('stdin', function () {
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return stdin
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})
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}
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