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@ErikAugust
ErikAugust / spectre.c
Last active October 7, 2025 15:37
Spectre example code
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#ifdef _MSC_VER
#include <intrin.h> /* for rdtscp and clflush */
#pragma optimize("gt",on)
#else
#include <x86intrin.h> /* for rdtscp and clflush */
#endif
@acdlite
acdlite / coordinating-async-react.md
Last active June 17, 2024 11:56
Demo: Coordinating async React with non-React views

Demo: Coordinating async React with non-React views

tl;dr I built a demo illustrating what it might look like to add async rendering to Facebook's commenting interface, while ensuring it appears on the screen simultaneous to the server-rendered story.

A key benefit of async rendering is that large updates don't block the main thread; instead, the work is spread out and performed during idle periods using cooperative scheduling.

But once you make something async, you introduce the possibility that things may appear on the screen at separate times. Especially when you're dealing with multiple UI frameworks, as is often the case at Facebook.

How do we solve this with React?

@ebachter
ebachter / iframe_handling_in_react.js
Last active October 6, 2019 10:58
iframe handling in react
import React from 'react';
import { connect } from 'react-redux';
class PageWidget extends React.Component {
componentDidMount() {
this.ifr.onload = () => {
this.ifr.contentWindow.postMessage('hello', '*');
};
window.addEventListener("message", this.handleFrameTasks);
}
@marianogappa
marianogappa / backpressure.go
Created December 4, 2016 04:53
Example backpressure implementation in Go
/*
This snippet is an example of backpressure implementation in Go.
It doesn't run in Go Playground, because it starts an HTTP Server.
The example starts an HTTP server and sends multiple requests to it. The server starts denying
requests by replying an "X" (i.e. a 502) when its buffered channel reaches capacity.
This is not the same as rate-limiting; you might be interested in https://github.com/juju/ratelimit
or https://godoc.org/golang.org/x/time/rate.
@xcsrz
xcsrz / whoiswatching.sh
Created November 7, 2016 19:42
Who can see/sniff your dns queries?
traceroute 8.8.8.8|awk -F[\(\)] '$2~/[0-9]/{print $2}'|while read i;do whois $i | awk -F ":\s*" '/^(OrgName|City|State|Country)/ {gsub(/^[ \t]+|[ \t]+$/, "", $2); printf $2" "}'; echo $i; done
@miroslav-mrazek
miroslav-mrazek / FooFormFactory.php
Last active November 5, 2022 10:28
Nette form factory
<?php
namespace App\Model\Data;
use Nette\Application\UI\Form;
class FooFormFactory
{
{
"functionCalls": [
{
"function": "\\array_diff_assoc",
"position": 0
},
{
"function": "\\array_diff_key",
"position": 0
},
@brandt
brandt / README.md
Last active January 19, 2026 10:03
Creates a loopback alias with IP 127.0.0.2 at startup on Mac OS X

Loopback Alias

Creates an alias on the loopback interface (lo0) with the IP 127.0.0.2 on macOS.

Installation

  1. Install the plist to: /Library/LaunchDaemons/com.runlevel1.lo0.127.0.0.2.plist
  2. Set mode: sudo chmod 0644 /Library/LaunchDaemons/com.runlevel1.lo0.127.0.0.2.plist
  3. Set owner: sudo chown root:wheel /Library/LaunchDaemons/com.runlevel1.lo0.127.0.0.2.plist
  4. Load: sudo launchctl load /Library/LaunchDaemons/com.runlevel1.lo0.127.0.0.2.plist
@danieldunderfelt
danieldunderfelt / index.js
Created June 12, 2016 16:10
Serializing and hydrating state with MobX
/* App creator */
import { extendObservable } from 'mobx'
import AppStore from '../app/AppStore'
export default (initialState = false) => {
const stores = {
App: AppStore
}
@ingramchen
ingramchen / gist:e2af352bf8b40bb88890fba4f47eccd0
Created April 5, 2016 12:58
ffmpeg convert gif to mp4, for best cross browser compatibility
### Full command line options
```
ffmpeg -f gif -i FOO.gif -pix_fmt yuv420p -c:v libx264 -movflags +faststart -filter:v crop='floor(in_w/2)*2:floor(in_h/2)*2' BAR.mp4
```
### Notie
* output mp4 is encoded with h264, support Firefox/Chrome/Safari in Windows, Mac OSX, Android, and iOS.