David Bremner dbremner

Functional Track talks from NDC London 2017

Also, here is the list of all videos from NDC London 2017:

Wednesday 2017-01-18

There doesn't seem to be a good resource online describing the issues with protocol buffers and deterministic serialization (or lack thereof). This is a collection of links on the subject.

Protocol Buffers v3.0.0. release notes:

The deterministic serialization is, however, NOT canonical across languages; it is also unstable across different builds with schema changes due to unknown fields.

Maps documentation:

Wire format ordering and map iteration ordering of map values is undefined, so you cannot rely on your map items being in a particular order.

Deconstruct 2017 Bibliography

Here are all of the resources mentioned by Deconstruct 2017 speakers, along with who recommended what. Please post a comment if I missed something or have an error!

DC 2017 Speakers' Choice Gold Medalist

Seeing Like a State by James Scott

Books

Public Opinion by Walter Lippmann (Evan Czaplicki)
A Pattern Language by Christopher Alexander (Brian Marick)
Domain Driven Design by Eric Evans (Brian Marick)

Pony Considerations

If you're thinking of checking out the Pony programming language, here's a list of things that I think are important to know. This list is based on a Tweet that I wrote.

Editor/IDE support

There are Pony packages for several popular editors.

	/*

	Preface:

	I'm issuing this challenge as I've hit a major roadblock in the development process
	of one of my personal side projects. I've spent the last 2 weeks exhaustively exploring
	solutions to the following problem and I'm at my wits end. I've taken a number of approaches
	using various tree data structures and clever algorithms with no success.

	using System;
	using System.Collections.Generic;
	using System.Collections;
	using System.Diagnostics;
	using System.Runtime.CompilerServices;

	namespace IListPerformance
	{
	public class Program
	{

	/*
	* various methods to strip whitespace from text
	* (aka. despace, leftpack, copy_if)
	*
	* 'whitespace' is considered the following bytes:
	* 0x09 - tab
	* 0x20 - space
	* 0x0A - line feed
	* 0x0D - carriage return
	*/

	// Faster solution for:
	// http://www.boyter.org/2017/03/golang-solution-faster-equivalent-java-solution/
	// With threading.
	// g++ -std=c++11 -Wall -Wextra -O3 -pthread

	// On my computer (i5-6600K 3.50 GHz 4 cores), takes about ~160 ms after the CPU
	// has warmed up, or ~80 ms if the CPU is cold (due to Turbo Boost).

	// How it works: Start by generating a list of losing states -- states where the
	// game can end in one turn. Generate a new list of states by running the game

	# LVDB - LLOOGG Memory DB
	# Copyriht (C) 2009 Salvatore Sanfilippo <[email protected]>
	# All Rights Reserved

	# TODO
	# - cron with cleanup of timedout clients, automatic dump
	# - the dump should use array startsearch to write it line by line
	# and may just use gets to read element by element and load the whole state.
	# - 'help','stopserver','saveandstopserver','save','load','reset','keys' commands.
	# - ttl with milliseconds resolution 'ttl a 1000'. Check ttl in dump!