electron/lib/common/init.js

63 lines
2 KiB
JavaScript
Raw Normal View History

2016-03-25 19:57:17 +00:00
const timers = require('timers')
2016-01-12 02:40:23 +00:00
2016-12-02 18:37:27 +00:00
const {binding} = process
2016-03-25 19:57:17 +00:00
process.atomBinding = function (name) {
2016-01-12 02:40:23 +00:00
try {
2016-12-02 18:37:27 +00:00
return binding(`atom_${process.type}_${name}`)
2016-01-12 02:40:23 +00:00
} catch (error) {
2016-01-19 23:11:55 +00:00
if (/No such module/.test(error.message)) {
2016-12-02 18:37:27 +00:00
return binding(`atom_common_${name}`)
2016-09-16 18:34:52 +00:00
} else {
throw error
2016-01-12 02:40:23 +00:00
}
}
2016-03-25 19:57:17 +00:00
}
2016-01-12 02:40:23 +00:00
2016-01-14 18:44:21 +00:00
// setImmediate and process.nextTick makes use of uv_check and uv_prepare to
// run the callbacks, however since we only run uv loop on requests, the
// callbacks wouldn't be called until something else activated the uv loop,
// which would delay the callbacks for arbitrary long time. So we should
// initiatively activate the uv loop once setImmediate and process.nextTick is
// called.
2016-03-25 19:57:17 +00:00
var wrapWithActivateUvLoop = function (func) {
return function () {
process.activateUvLoop()
return func.apply(this, arguments)
}
}
2016-01-12 02:40:23 +00:00
2016-03-25 19:57:17 +00:00
process.nextTick = wrapWithActivateUvLoop(process.nextTick)
2016-01-12 02:40:23 +00:00
2016-03-25 19:57:17 +00:00
global.setImmediate = wrapWithActivateUvLoop(timers.setImmediate)
2016-01-12 02:40:23 +00:00
2016-03-25 19:57:17 +00:00
global.clearImmediate = timers.clearImmediate
2016-01-12 02:40:23 +00:00
if (process.type === 'browser') {
2016-01-14 18:44:21 +00:00
// setTimeout needs to update the polling timeout of the event loop, when
// called under Chromium's event loop the node's event loop won't get a chance
// to update the timeout, so we have to force the node's event loop to
// recalculate the timeout in browser process.
2016-03-25 19:57:17 +00:00
global.setTimeout = wrapWithActivateUvLoop(timers.setTimeout)
global.setInterval = wrapWithActivateUvLoop(timers.setInterval)
2016-01-12 02:40:23 +00:00
}
if (process.platform === 'win32') {
// Always returns EOF for stdin stream.
const {Readable} = require('stream')
const stdin = new Readable()
stdin.push(null)
process.__defineGetter__('stdin', function () {
return stdin
})
// If we're running as a Windows Store app, __dirname will be set
// to C:/Program Files/WindowsApps.
//
// Nobody else get's to install there, changing the path is forbidden
// We can therefore say that we're running as appx
if (__dirname.includes('\\WindowsApps\\')) {
process.windowsStore = true
}
}