electron/spec/fixtures/api/sandbox.html
Thiago de Arruda 6ff111a141 perf: don't use JSON to send the result of ipcRenderer.sendSync. (#8953)
* Don't use JSON to send the result of `ipcRenderer.sendSync`.

- Change the return type of AtomViewHostMsg_Message_Sync from `base::string16`
  to `base::ListValue`
- Adjust lib/browser/api/web-contents.js and /lib/renderer/api/ipc-renderer.js
  to wrap/unwrap return values to/from array, instead of
  serializing/deserializing JSON.

This change can greatly improve `ipcRenderer.sendSync` calls where the return
value contains Buffer instances, because those are converted to Array before
being serialized to JSON(which has no efficient way of representing byte
arrays).

A simple benchmark where remote.require('fs') was used to read a 16mb file got
at least 5x faster, not to mention it used a lot less memory.  This difference
tends increases with larger buffers.

* Don't base64 encode Buffers

* Don't allocate V8ValueConverter on the heap

* Replace hidden global.sandbox with NodeBindings::IsInitialized()

* Refactoring: check NodeBindings::IsInitialized() in V8ValueConverter

* Refactor problematic test to make it more reliable

* Add tests for NaN and Infinity
2018-06-13 17:38:31 +10:00

115 lines
3.5 KiB
HTML

<html>
<script type="text/javascript" charset="utf-8">
function timeout(ms) {
return new Promise((resolve) => {
setTimeout(resolve, ms)
})
}
async function invokeGc () {
// it seems calling window.gc once does not guarantee garbage will be
// collected, so we repeat 10 times with interval of 100 ms
for (let i = 0; i < 10; i++) {
window.gc()
await timeout(100)
}
}
const [,test] = window.location.href.split('?')
if (window.opener && test !== 'reload-remote') {
window.callback = () => {
opener.require('electron').ipcRenderer.send('answer', document.body.innerHTML)
}
} else {
const {ipcRenderer, remote} = require('electron')
const tests = {
'reload-remote-child': () => {
open(`${location.protocol}//${location.pathname}?reload-remote`)
},
'reload-remote': async () => {
const p = ipcRenderer.sendSync('get-remote-module-path')
const Hello = remote.require(p)
if (!ipcRenderer.sendSync('reloaded')) {
ipcRenderer.send('reload')
return
}
await invokeGc()
ipcRenderer.send('answer', new Hello().say())
},
'allocate-memory': async () => {
await invokeGc()
const {privateBytes: bytesBeforeOpen} = process.getProcessMemoryInfo()
let w = open('./allocate-memory.html')
await invokeGc()
const {privateBytes: bytesAfterOpen} = process.getProcessMemoryInfo()
w.close()
w = null
await invokeGc()
const {privateBytes: bytesAfterClose} = process.getProcessMemoryInfo()
ipcRenderer.send('answer', {
bytesBeforeOpen, bytesAfterOpen, bytesAfterClose
})
},
'window-events': () => {
document.title = 'changed'
},
'webcontents-stop': () => {
stop()
},
'webcontents-events': () => {
addEventListener('load', () => {
location.hash = 'in-page-navigate'
setTimeout(() => {
location.reload()
}, 50)
})
},
'exit-event': () => {
process.on('exit', () => {
ipcRenderer.send('answer', location.href)
})
location.assign('http://www.google.com')
},
'window-open': () => {
addEventListener('load', () => {
popup = open(window.location.href, 'popup!', 'top=60,left=50,width=500,height=600')
popup.addEventListener('DOMContentLoaded', () => {
popup.document.write('<h1>scripting from opener</h1>')
popup.callback()
}, false)
})
},
'window-open-external': () => {
addEventListener('load', () => {
ipcRenderer.once('child-loaded', (e) => {
try {
let childDoc = popup.document
} catch (e) {
ipcRenderer.send('answer', e.message)
}
})
popup = open('http://www.google.com/#q=electron', '', 'top=65,left=55,width=505,height=605')
})
},
'verify-ipc-sender': () => {
popup = open()
ipcRenderer.once('verified', () => {
ipcRenderer.send('parent-answer')
})
popup.ipcRenderer.once('verified', () => {
popup.ipcRenderer.send('child-answer')
})
ipcRenderer.send('parent-ready')
popup.ipcRenderer.send('child-ready')
}
}
addEventListener('unload', () => {
if (window.popup)
popup.close()
}, false)
if (tests.hasOwnProperty(test))
tests[test]()
}
</script>
</html>