bratsche

Notes on why I think Elixir is worth using for us

* Phoenix Channels - able to support 2 million concurrent clients on a single server.
    * Node.js has an equivalent feature called SocketIO
    * Ruby on Rails has an equivalent feature called ActionCable
    * Not aware of any similar feature in Python
* Concurrency
    * Ruby, restricted by a GIL
    * Python, restricted by a GIL, but there is a proposal to remove it. Not sure how long it will take to remove it.
    * Node.js, single-threaded async

bratsche

defmodule ExperimentsWeb.ComposerLive.Index do
  use ExperimentsWeb, :live_view

  import ExperimentsWeb.ComposerLive.Table

  alias Experiments.Composers
  alias Experiments.Composers.Composer

  @impl true
  def mount(_params, _session, socket) do

bratsche

Keybase proof

I hereby claim:

• I am bratsche on github.
• I am bratsche (https://keybase.io/bratsche) on keybase.
• I have a public key ASB1iVAvshnnFu_8fyzVI-1OBhcehQUwyy_ScHu7enY-TAo

To claim this, I am signing this object:

bratsche

git ls-files | while read -r line; do
  s=$(git status -s "$line");
  if [ -n "$s" ]; then
    echo "$s";
  else
    echo "   $line";
  fi;
done

bratsche

defmodule Foo.SessionController do
  use Foo.Web, :controller
  
  def create(conn, %{"session" => session_params}) do
    case Foo.Session.authenticate(session_params) do
      {:ok, user} ->
        {:ok, jwt, _full_claims} = Guardian.encode_and_sign(user, :token)
        
        conn
        |> put_status(:created)

bratsche

module Main (..) where

import Effects exposing (Effects, Never, none)
import Json.Decode as Json
import Html exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (..)
import String
import StartApp
import Signal exposing (Address)

bratsche

public void SetSortFunc(int sort_column_id, Gtk.TreeIterCompareFunc sort_func) {
    GtkSharp.TreeIterCompareFuncWrapper sort_func_wrapper = new GtkSharp.TreeIterCompareFuncWrapper (sort_func);
    IntPtr user_data;
    GLib.DestroyNotify destroy;
    if (sort_func == null) {
        user_data = IntPtr.Zero;
        destroy = null;
    } else {
        user_data = (IntPtr) GCHandle.Alloc (sort_func_wrapper);
        destroy = GLib.DestroyHelper.NotifyHandler;

bratsche

# lib/mix/tasks/musikr.seed.ex
defmodule Mix.Tasks.Musikr.Seed do
  use Mix.Task

  @shortdoc "Seeds the database"

  @moduledoc """
    Seed the database using the file 'priv/repo/seeds.exs'
  """

bratsche

--- a/src/win32/cairo-win32-font.c
+++ b/src/win32/cairo-win32-font.c
@@ -379,6 +379,8 @@ _win32_scaled_font_create (LOGFONTW                   *logfont,
     /* don't delete the hfont if we're using the one passed in to us */
     f->delete_scaled_hfont = !f->scaled_hfont;

+    cairo_matrix_scale (font_matrix, 1.0 / device_scale, 1.0 / device_scale);
+    cairo_matrix_scale (ctm, device_scale, device_scale);
     cairo_matrix_multiply (&scale, font_matrix, ctm);
     status = _compute_transform (f, &scale);

bratsche

#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <string.h>
#include <sys/stat.h>
#include <stdio.h>

/* Don't get link errors because mkdir is redefined to rpl_mkdir.  */
#undef mkdir