emilsoman

defmodule MyFlow.Producer do
  use GenStage

  def start_link do
    GenStage.start_link(__MODULE__, nil, name: __MODULE__)
  end

  def push(user_id) do
    GenStage.call(__MODULE__, {:push, user_id})
  end

emilsoman

defmodule MyServer do
  use GenServer

  def start_link do
    GenServer.start_link(__MODULE__, [], name: __MODULE__)
  end

  def kill do
    GenServer.cast(__MODULE__, :stop)
  end

emilsoman

How to convert existing phoenix app to an umbrella app.
https://elixir-lang.slack.com/archives/phoenix/p1472921051000134


chrismccord [10:14 PM]  
@alanpeabody yes, it's straightforward

[10:14]  
1) mix new my_umbrella --umbrella

emilsoman

// Launch options in steam
-novid +exec autoconfig.cfg -freq 144

emilsoman

# Use ruby:2.2 as the base image since this is a Rails app
FROM <private_docker_registry>/ruby:2.2
# Install necessary packages for running rails and connecting to DB
RUN apt-get update -qq && apt-get install -y build-essential nodejs mysql-client

RUN mkdir /web
WORKDIR /web
# Copy the project
ADD . /web/
COPY config/database.docker.yml /web/config/database.yml

emilsoman

zeus () {
  ARGS=$@;
  command zeus "$@";
  ZE_EC=$?;
  if [ $ZE_EC = 2 ]; then
    stty sane;
    zeus ${=ARGS};
  fi
}

emilsoman

Pairing with Wemux

Just for future reference, here are the steps for pairing with wemux:

On host:

1. Install wemux
2. Create a new user on the OS, called 'pair'
3. Add client's SSH public key to ~/.ssh/authorized_keys of 'pair' user we just created. Make sure sshd is running
4. Log out of pair user, run wemux start as normal user.

emilsoman

#include <stdio.h>
int main(){
  fprintf(stderr, "%s\n", "Study of int arrays");
  fprintf(stderr, "%s\n", "===================");
  int a[] = {1, 2, 3, 4, 5};
  // Arrays are contiguous memory locations.

  // The variable holding the array actually points to
  // the first item in the array :
  fprintf(stderr, "%p == %p\n", a, &a[0]);

emilsoman

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <sys/time.h>

double get_wall_time(){
  struct timeval tv;
  gettimeofday(&tv, NULL);
  return tv.tv_sec + (tv.tv_usec/1000000.0);
}

emilsoman

Tmux layouts with tmuxinator

Finally this time, I'm sold on tmux after I used tmuxinator to configure tmux layouts. The default layout didn't work for me, I wanted more control on the split panes. Here's how you can fine tune your tmux layout:

1. Add this to your ~/.tmux.conf -> set -g mouse-resize-pane on
2. Start tmux, split panes, resize panes with mouse to your liking
3. On your shell, run tmux list-windows to list active tmux windows and their layouts
4. Copy paste the layout in tmuxinator project file