plesner

#!/bin/sh

set -e

# How often to send wake-on-lan pokes.
POKE_INTERVAL_SECS=60

# Mac address of the machine to poke.
MAC_ADDR=00:25:4b:a0:65:9c

plesner

-- Given a list of values, returns a list of the differences between
-- neighbouring pairs of values.
nextLevelDiffs (a:b:rest) = (b - a):(nextLevelDiffs (b:rest))
nextLevelDiffs _ = []

-- Given a list of values, returns a list of the differences such that the
-- first element is the 0-level differences, the second the 1-level and so
-- on.
nLevelDiffs [] = []
nLevelDiffs elms = elms:(nLevelDiffs (nextLevelDiffs elms))

plesner

#include <fenv.h>
#include <stdio.h>
#include <stdlib.h>

double do_the_thing(const char *mode) {
  float b, v;
  int i;
  b = 0.01;
  // Perform a lot of operations on b to accumulate rounding.
  for (i = 0; i < 100000; i++)

plesner

#!/bin/sh

# Utility for chopping a file into chunks of a certain number of lines and
# encoding each chunk as a qr code. For storing private keys on paper.

set -e

KEYIN=$1
OUTFMT=key-%i.png
CHUNKSIZE=12

plesner

#!/usr/bin/python

from gi.repository import AppIndicator3 as AppIndicator
from gi.repository import Gtk
import re
import signal
import sys
import threading

plesner

Keybase proof

I hereby claim:

• I am plesner on github.
• I am p5r (https://keybase.io/p5r) on keybase.
• I have a public key whose fingerprint is 6797 4944 0B13 F676 ACE2 2CAD B398 99E7 7971 5C1D

To claim this, I am signing this object:

plesner

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <time.h>

class Xorshift {
public:
  Xorshift(uint32_t x, uint32_t y, uint32_t z, uint32_t w)
    : ox_(x), oy_(y), oz_(z), ow_(w)
    , x_(x), y_(y), z_(z), w_(w) { }

plesner

def get_current_time_millis():
  return int(time.time() * 1000)


# Rate limiter that issues permits at a certain rate but only allows a certain
# number of permits to accumulate regardless of how long you wait.
class LeakyBucket(object):

  def __init__(self, permits_per_sec, max_accumulation):
    self.millis_per_permit = 1000.0 / permits_per_sec

plesner

SELECT
    stops.stop_name
  , stop_times.departure_time_secs / 3600 AS departure_time_hours
  , (stop_times.departure_time_secs / 60) - ((stop_times.departure_time_secs / 3600) * 60) AS departure_time_mins
  , trips.trip_headsign
  , routes.route_short_name
  , calendars.monday
  , calendars.tuesday
  , calendars.wednesday
  , calendars.thursday