Programming a zombie

@darkofabijansemaphoreapp.comrenderedtext.com

Semaphore

•hosted continuous integration and deployment

•distributed & semi-fault-tolerant

•runs on 20 dedicated servers

•it’s all Ruby

Isolation

1

Body part isolation

2

Body isolation

2

Body isolation

Zombie world

Computer World

Isolation

Message passing

Elixir

BEAM

(EVM)Erlang

streaming APIs

server side events

web sockets

multi-core

Ruby / Ruby on Rails

great syntax

a lot of meta-programming

easy to create DSL

BEAM

x few million

half mobile data traffic in the world

99.999+%

def Math do

def sum do receive do {:sum, a, b} -> IO.puts(“Sum #{a + b}) sum() end

end

end

pid = spawn(fn -> Math.sum end)

pid <- {:sum, 2, 3}

=> Sum 5

{:sum, 2, 3}Math.sum

Shell

{:sum, 2, 3}Math.sum

Shell

{:sum, 2, 3}Math.sum

Shell

Novi Sad

Tokyo

pid = spawn(tokyo, fn -> Math.sum end)

pid <- {:sum, 2, 3}

OTP

Server

Event

FSM

Supervisor

Application

Leader

Books

Thank you!

Q&A