mike-bourgeous

/*
 * Minimal Linux- and GLX-specific example of using a pool of Pixel Buffer
 * Objects to stream pixel data.
 *
 * This is a minimal test case for opening an OpenGL window with raw
 * X11/Xlib/GLX, drawing a simple test image, and fast PBO-based streaming of
 * image data to disk with glReadPixels().
 *
 * On an NVidia RTX2080 Super, on Ubuntu 20.04, saving to an SSD, this sustains
 * 150+fps (peaking at 500+, hitting 900+ if only writing a single file instead

mike-bourgeous

• jnr/jnr-ffi#194
• jruby/jruby#4506

mike-bourgeous

#!/bin/bash

test() {
	echo "Standard out"
	echo "Standard error" >&2
}

tmpfile=`mktemp`
test 3>&1 4>&2 2>&3- 1>&4- | tee $tmpfile
cat $tmpfile

mike-bourgeous

#!/usr/bin/env ruby
# This quick and dirty script imports posts and images exported by the
# Posterous backup feature into Octopress.  Requires the escape_utils and
# nokogiri gems.  Doesn't import comments.
#
# Videos and images are copied into a post-specific image directory used
# by my customized Octopress setup.  Encoded videos are downloaded from
# Posterous.  Images will probably need to be compressed/optimized afterward.
#
# Links to other posts in the same import will try to be converted.  You will

mike-bourgeous

#!/bin/bash
# Creates a base64-encoded self-extracting tar archive.  The extracting system
# must have GNU tar, GNU coreutils (for base64), and bzip2 installed.
# Created June 2011 by Mike Bourgeous
# Released into the public domain, or if that is not possible, under CC0

function create_archive()
{
	set -e
	echo '#!/bin/sh'

mike-bourgeous

/*
 * This implementation of popen3() was created in 2007 for an experimental
 * mpg123 frontend and is based on a popen2() snippet found online.  This
 * implementation may behave in unexpected ways if stdin/stdout/stderr have
 * been closed or modified.  No warranty of its correctness, security, or
 * usability is given.  My modifications are released into the public domain,
 * but if used in an open source application, attribution would be appreciated.
 * 
 * Mike Bourgeous
 * https://github.com/mike-bourgeous

mike-bourgeous

#!/bin/sh
# Launches an application with the Oracle instant client environment set.
# Created by Mike Bourgeous, DeseretBook.com

export CLIENT_PATH=/usr/lib/oracle/11.2/client64/lib
export PATH="$PATH:$CLIENT_PATH"
export LD_LIBRARY_PATH="$CLIENT_PATH"
export SQLPATH="$HOME/.oracle:$CLIENT_PATH"
export TNS_ADMIN="$HOME/.oracle"
export NLS_LANG="american_america.utf8"

mike-bourgeous

#!/usr/bin/env ruby
# Simplified demo showing the use of the Sequel gem, raw OCI8 connection, and
# ruby_plsql gem on a single connection.  Uses undocumented yield behavior from
# Sequel, so might not work with different Sequel versions.
# by Mike Bourgeous

# These must be set before requiring oci8
ENV['NLS_LANG'] = 'american_america.utf8'
ENV['TNS_ADMIN'] = File.expand_path(File.dirname(__FILE__))

mike-bourgeous

# Faster than OpenStruct, but liable to get your box pwned.
class QuickAndDangerousStruct
  def method_missing(name, *args)
    make_method(name)
    send name, *args
  end

  def make_method(name)
    name = name.to_s
    base = name.end_with?('=') ? name[0..-2] : name

mike-bourgeous

def gc_stat
  GC.disable

  asym = :total_allocated_objects
  fsym = :total_freed_objects

  before = GC.stat
  ba = before[asym]
  bf = before[fsym]
  puts "Before: alloc=#{ba} free=#{bf}"