haileys

require "thread"

Thread.abort_on_exception = true

class ReadWriteLock
  def initialize
    @lock_request_queue = SizedQueue.new(1)
    @thread = Thread.new { thread_main }
    @readers = 0
    @writer_queue = []

haileys

diff --git variable.c variable.c
index d142255..27b1237 100644
--- variable.c
+++ variable.c
@@ -1851,7 +1851,7 @@ rb_const_get_0(VALUE klass, ID id, int exclude, int recurse, int visibility)
 		continue;
 	    }
 	    if (exclude && tmp == rb_cObject && klass != rb_cObject) {
-		rb_warn("toplevel constant %"PRIsVALUE" referenced by %"PRIsVALUE"::%"PRIsVALUE"",
+		rb_raise(rb_eNameError, "toplevel constant %"PRIsVALUE" referenced by %"PRIsVALUE"::%"PRIsVALUE"",

haileys

λ for shard in /dev/null*; do echo -n "$shard: "; command time dd if=/dev/zero of=$shard bs=1024 count=$((1024*1024)) |& tail -1; done
/dev/null:         0.87 real         0.17 user         0.69 sys
/dev/null0:         0.87 real         0.17 user         0.69 sys
/dev/null1:         0.87 real         0.17 user         0.69 sys
/dev/null2:         0.87 real         0.17 user         0.69 sys
/dev/null3:         0.88 real         0.18 user         0.70 sys
/dev/null4:         0.87 real         0.17 user         0.69 sys
/dev/null5:         0.86 real         0.17 user         0.68 sys
/dev/null6:         0.88 real         0.17 user         0.70 sys
/dev/null7:         0.87 real         0.17 user         0.69 sys

haileys

require "thread"

q = SizedQueue.new(1)

Thread.start do
  q << "foo"
  q << "bar"
end

p q.deq

haileys

#!/bin/bash

if [ $# = 0 ]; then
  echo "Usage: git pr-for <commit>" >&2
  exit 1
fi

SHA="$(git log "$1"..master --ancestry-path --merges --reverse --oneline | grep 'Merge pull request' | head -1 | cut -d' ' -f1)"

if [ -n "$SHA" ]; then

haileys

def pipe_to_pager(pager = "less")
  r, w = IO.pipe

  if fork
    # parent
    $stdin.reopen(r)
    w.close
    exec pager
  else
    # child

haileys

module MA; end
module MB; end
module MC; end
module MD; end
module ME; end

class A; end

class B < A
  include MA

haileys

Thread #0 was switched to  125044 times
Thread #1 was switched to  124994 times
Thread #2 was switched to  124994 times
Thread #3 was switched to  124993 times
Thread #4 was switched to  124993 times
Thread #5 was switched to  124994 times
Thread #6 was switched to  124994 times
Thread #7 was switched to  124993 times

1,000,000 thread switches took 2.143874 seconds

haileys

#!/usr/bin/env ruby
gem "twitter", "~> 5.3.0"
require "twitter"

def usage
  abort "Usage: twitter-intersect (<username>.following|<username>.followers)..."
end

usage if ARGV.empty?

haileys

#include <stdlib.h>
#include <stdio.h>
#include <luajit-2.0/lua.h>
#include <luajit-2.0/lauxlib.h>

int
main()
{
    lua_State* L = lua_open();
    if(!L) {