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Joe Eli McIlvain jemc

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jemc / fedora-dd.txt
Created January 3, 2020 01:11
sudo dd if=/dev/sdb2 bs=512 count=1953523711 conv=sync,noerror | pv -s 931G | sudo dd of=/run/media/liveuser/f09ad2eb-b80a-4bae-ac9a-33c71b6aa191/disk-image-2020-01-02.dd
@jemc
jemc / unicorn-hat-xmas-lights.sh
Created December 17, 2017 16:31
set -ex
# This script sets up a fresh Raspberry Pi 2 with Raspbian for the purposes
# of driving a string of color-changing LEDs to act as Christmas lights.
# I've written this out because it's common for the flash to get corrupted
# and have to start over fresh from recovery mode.
sudo apt-get remove wolfram-engine # way too huge and unnecessary
sudo apt-get update
@jemc
jemc / supervisor.rb
Last active November 22, 2017 21:31
Controlling supervisord from Ruby using XMLRPC over Unix sockets.
require "net/http"
require "socket"
gem "libxml-xmlrpc"
require "xml/libxml/xmlrpc"
module Supervisor
class << self
attr_accessor :socket_path
@jemc
jemc / ardour-deps-fedora.bash
Created October 19, 2017 03:27
sudo dnf install -y boost-devel glibmm24-devel libsndfile-devel libarchive-devel liblo-devel taglib-devel vamp-plugin-sdk-devel rubberband-devel fftw-devel aubio-devel pangomm-devel liblrdf-devel libsamplerate-devel lv2-devel serd-devel sord-devel sratom-devel lilv-devel gtkmm24-devel
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jemc / pony-explicit-partial-calls.bash
Last active August 10, 2017 10:08
#!/usr/bin/bash
##
# In Pony 0.16.0, we introduced a breaking syntax change that affects all calls
# to partial functions (functions that can raise an error).
#
# All partial function calls are now required to be followed by a question mark.
#
# For example, `iterator.next()` is now `iterator.next()?`, providing a visual
# indication at the call site of any places where an error may be raised.
@jemc
jemc / libgmp-alloc-fns.pony
Created July 14, 2017 04:25
let alloc_fn = @{(size: USize): Pointer[U8] =>
@pony_alloc[Pointer[U8]](@pony_ctx[Pointer[None] iso](), size)
}
let realloc_fn = @{(p: Pointer[U8], oldsz: USize, sz: USize): Pointer[U8] =>
@pony_realloc[Pointer[U8]](@pony_ctx[Pointer[None] iso](), p, sz)
}
let free_fn = @{(p: Pointer[U8], size: USize) =>
@jemc
jemc / unreachable.pony
Created February 13, 2017 19:57
A pattern for dealing with unreachable conditions in Pony.
class Unreachable
new create(value: (Stringable | None) = None, loc: SourceLoc = __loc) =>
@printf[I32](
"ABORT: Unreachable condition at %s:%zu (in %s method)\n".cstring(),
loc.file().cstring(), loc.line(), loc.method().cstring())
if value isnt None then
@printf[I32]("%s\n".cstring(), value.string().cstring())
end
@jemc
jemc / inbox.pony
Last active September 10, 2016 05:33
use "collections"
use "debug"
interface tag InboxTarget[M: Any val]
be process(m: M)
actor Inbox[M: Any val]
"""
An inbox that holds the latest posted message of type M,
forwarding the message to the current target if and when the target is ready.
@jemc
jemc / keybase.md
Created September 9, 2016 04:13

Keybase proof

I hereby claim:

  • I am jemc on github.
  • I am jemc (https://keybase.io/jemc) on keybase.
  • I have a public key whose fingerprint is 8538 31C7 196B A075 1208 3EE4 9C0F CEC6 60C9 F1E8

To claim this, I am signing this object:

@jemc
jemc / oa.pony
Created May 18, 2016 21:22 — forked from SeanTAllen/oa.pony
Pony Solution to the Expression Problem Using Object Algebras see http://i.cs.hku.hk/~bruno/oa/ for more info
interface ExpAlg[E]
fun lit(x: I32): E
fun add(e1: E, e2: E): E
interface Eval
fun eval(): I32
interface EvalExpAlg
fun lit(x: I32): Eval val =>
recover