seansawyer

DROP FUNCTION IF EXISTS hex_to_bit_varying(hex_string text);
CREATE FUNCTION hex_to_bit_varying(hex_string text) RETURNS bit varying AS $$
DECLARE
  bytes bytea = decode(hex_string, 'hex');
  n int = length(bytes) * 8 - 1;
  bits bit varying := B''::bit varying;
BEGIN
  -- RAISE NOTICE 'bytes=%, n=%', bytes, n;
  -- RAISE NOTICE 'bits=%', bits;
  FOR i IN 0 .. n BY 8 LOOP

seansawyer

<?php

/**
 * Try to acquire an arbitrarily-named lock by binding a Unix
 * (family AF_UNIX) datagram (type SOCK_DGRAM) socket to an
 * abstract address corresponding to the lock name. On success,
 * the bound socket resource is returned (or null, on
 * failure). You may either call unlock() with that resource to
 * release the lock explicitly, or rely on the operating system
 * to clean up the socket when the process exits.

seansawyer

Thrift with C/glib

• Thrift C tests - https://git1-us-west.apache.org/repos/asf?p=thrift.git;a=tree;f=test/c_glib/src;hb=HEAD
• StackOverflow question on how to create a server - http://stackoverflow.com/questions/29506326/how-do-i-create-a-thrift-server-in-c-with-glib
• Blog post on using Thrift with Cassandra from C - http://tlfabian.blogspot.com/2012/01/thrift-cglib-and-cassandra.html
• Thrift JIRA thread on the issue - https://issues.apache.org/jira/browse/THRIFT-976

Kafka

• C client library - https://github.com/edenhill/librdkafka

seansawyer

# Meta Man
man man

# When your last commit has some garbage author info - maybe you committed in a VM or something
git commit --amend --reset-author

# Sudo do the last thing I said
sudo !!

# Remove an item from your history - maybe you typed your password by accident

seansawyer

$ time shuf -i 1-4294967296 -n 10000000 | sort | uniq - sorted1.txt                                                      

real    0m21.387s
user    0m22.700s
sys     0m0.820s
$ time shuf -i 1-4294967296 -n 10000000 | sort | uniq - sorted2.txt                                                      

real    0m21.230s
user    0m22.417s
sys     0m0.703s

seansawyer

Print all libs loadable at runtime

ldconfig -p
# 208 libs found in cache `/etc/ld.so.cache'
#     libz.so.1 (libc6,x86-64) => /lib64/libz.so.1
#     libz.so (libc6,x86-64) => /usr/lib64/libz.so
# ...

Print all libs loadable at compile time

seansawyer

Retrospective: The Music and Stories of Laurie Anderson

Spotify playlist

Good morning everyone, Sean here. Welcome to Retrospective.

Today we're going to wander through the work of not only a great musician, but also a great storyteller, and in my opinion one of the great American poets: Laurie Anderson.

seansawyer

A Brief History of Algorithmic Composition

One of the most often cited examples of algorithmic music in the Classical Period (1750-1827) is Musikalisches Würfelspiel by Wolfgang Amadeus Mozart (1756-1791). In this composition, Mozart composed discrete musical excerpts that could be combined to form a waltz. The order of musical excerpts was determined by rolling two six-sided dice. The person assembling the waltz would refer to a table created by Mozart that showed which music should be used for the values of 2-12 on the dice.

Works

After Wagner, there was pretty much nothing new that could be done with tonal composition. So music hipsters everywhere were distraught, and looking for a way to push composition and music theory in general forward. The answer came from Arnold Schoenberg and his followers in the early 20th century in the form of serial composition. Serial composition introduced a set of rules for composition that arguably served to birth algorithmic composition as we know it today.

Ly

seansawyer

"""Randomly choose a list of teammates for code review, etc."""

from argparse import ArgumentParser
from getpass import getuser
from itertools import combinations
from random import randint


parser = ArgumentParser(description=__doc__)
parser.add_argument('--email',

seansawyer

from dataclasses import dataclass
from enum import Enum
from typing import Callable, Dict, Optional, Tuple

import tcod
import tcod.event


@dataclass
class Game: