Berkus Decker berkus

Serializing Binary Data in Rust

The way I like to serialize data in Rust into binary formats is to let a data structure blit itself into a mutable buffer. This is a relatively composable, low level way to work that lends itself to having other abstractions built on top of it. I recently was serializing network packets, so let's make up a small packet format that illustrates how we can do this.

+-------------+-------------+
|  Tag (u16)  | Count (u16) |
+-------------+-------------+
|                           |
~        Entry (u32)        ~

Ninja support for CLion IDE

This script enables Ninja-powered builds in CLion IDE by wrapping around CMake, which it uses. See my blog post for details.

Disclaimer

This script is provided AS IS with no guarantees given or responsibilities taken by the author. This script relies on undocumented features of CLion IDE and may lead to instability of build and/or IDE. Use it on your own risk under WTFPL terms.

Rust/Haskell: Higher-Kinded Types (HKT)

A higher kinded type is a concept that reifies a type constructor as an actual type.

A type constructor can be thought of in these analogies:

like a function in the type universe
as a type with a "hole" in it

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

Install tcpkill
yum -y install dsniff --enablerepo=epel

View connections
netstat -tnpa | grep ESTABLISHED.*sshd.

Block with ip tables
iptables -A INPUT -s IP-ADDRESS -j DROP

Kill connection

	#![allow(unused_variables)]
	#![allow(unused_imports)]

	use std::env;
	use std::process;
	use std::thread;
	use std::io::{self, Read, Write, Error};
	use std::net::TcpStream;
	use std::net::TcpListener;

	<?xml version="1.0" encoding="UTF-8"?><tagfile>
	<compound kind="class">
	<name>org::apache::harmony::tests::java::util::support::A</name>
	<filename>http://developer.android.com/reference/org/apache/harmony/tests/java/util/support/A.html</filename>
	<base>org::apache::harmony::tests::java::util::support::I</base>
	</compound>
	<compound kind="class">
	<name>com::android::settingslib::bluetooth::A2dpProfile</name>
	<filename>http://developer.android.com/reference/com/android/settingslib/bluetooth/A2dpProfile.html</filename>
	<base>com::android::settingslib::bluetooth::LocalBluetoothProfile</base>

	#include <stdlib.h>
	#include <stdio.h>
	#include <string.h>
	#include <iostream>
	#include <unistd.h>

	#include <boost/thread.hpp>

	#include <arpa/inet.h>
	#include <sys/socket.h>

	/*
	Referenced from:
	http://web.archive.org/web/20120110153227/http://weegen.home.xs4all.nl/eelis/analogliterals.xhtml
	*/

	#ifndef ANALOGLITERALS_HPP
	#define ANALOGLITERALS_HPP

	namespace analog_literals {