Php assíncrono com react php

1. PHP Assíncrono com
ReactPHP
PHP vs Node.js

2. Who am I?
● Programador
● Desenvolvedor web
● WebDesigner wannabe
● Leroy Merlin (Laravel)
● Sempre mais
http://zizaco.net
Luiz Fernando / Zizaco

3. Request Lifecycle
HTTP://
WebServer
PHP
External Services
File System
External Services
Cache

4. Laravel Request Lifecycle
HTTP://
WebServer
External Services
HTTP Kernel Service Providers
index.php autoload
Routes
Controller

6. Express (Node.js) Request Lifecycle
HTTP://
WebServer
External Services
AppServer Middlewares
index.js require(...)
Routes
Controller(?)
Opcional

7. Laravel Request Lifecycle
HTTP://
WebServer
External Services
HTTP Kernel Service Providers
index.php autoload
Routes
Controller

8. PHP Approach Request Lifecycle
HTTP://
WebServer
External Services
AppServer Stuff
index.php autoload
Routes
Controller
Opcional

9. PHP HTTP Server

11. Node.js HTTP Server

12. IO Bloqueante
IO CPU IO CPU IO CPU

13. IO Bloqueante
L1 cache reference 0.000001 ms
Main memory reference 0.0001 ms
Enviar 1 Kb por uma conexão 1 Gbps 0.010 ms
Disk seek 10 ms
Ler 1 MB do HD 20 ms
Round trip Brazil - EUA 150 ms
IO CPU IO CPU IO CPU

14. IO Não Bloqueante
IO CPU
IO CPU
IO CPU

15. IO Não Bloqueante How to?
EventLoop & Reactor Pattern

16. IO Não Bloqueante How to?
EventLoop & Reactor Pattern
"EventLoop is a programming construct
that waits for and dispatches events or
messages in a program & The reactor
design pattern is an event handling
pattern ..."

17. IO Não Bloqueante How to?
select | epoll
"A system call to examine the status of
file descriptors of open input/output
channels. | A scalable I/O event
notification mechanism"

18. IO Não Bloqueante How to?
File-based EventLoop
"The select and poll system calls allow a
set of file descriptors to be monitored for
a change of state, [...] by using files to
trigger and listen to events, the loop will
block if there are no events ready."

19. IO Não Bloqueante How to?
File-based EventLoop
"The select and poll system calls allow a
set of file descriptors to be monitored for
a change of state, [...] by using files to
trigger and listen to events, the loop will
block if there are no events ready."

20. Node.js HTTP Server

21. ReactPHP HTTP Server

24. Programando
Event Driven
[✓] The good
[✓] The bad
[✓] The ugly

25. Operações Bloqueantes
$result = syncAction($param1, $param2);
asyncAction($param1, $param2, Callable $callback);
Operações não Bloqueantes

26. Operações Bloqueantes
$result = syncAction($param1, $param2);
asyncAction($param1, $param2, Callable $callback);
Operações não Bloqueantes
Callback Hell

27. Node.js Callback Hell

28. Operações Bloqueantes
Operações não Bloqueantes
$result = syncAction($param1, $param2);
asyncAction($param1, $param2, Callable $callback);
$promise = asyncAction($param1, $param2);
$promise->done(Callable $callback);

29. Packages/Libs
Bloqueantes
Packages/Libs não
Bloqueantes
90%
github.com/react/*
&
packages for
ReactPHP

30. ReactPHP's
ChildProcess
Roda qualquer processo de forma
assíncrona (EventDriven)

31. ReactPHP's
ChildProcess
Roda qualquer processo de forma
assíncrona (EventDriven)

32. ReactPHP's
ChildProcess
Roda qualquer processo de forma
assíncrona (EventDriven)
nodejs.org/api/child_process.html

33. Why?

34. Quando usar ReactPHP/Node?
● Chat
● APIs
● Queued Input
● Data Streaming
● Proxy
● Monitoring
● Web Applications with NoSQL

35. Quando não usar ReactPHP/Node
● Web Applications with Relational Database
● Heavy Processing (CPU Intensive)

36. Node.js ReactPHP
VS

37. Node.js ReactPHP
● + Packages / Libs
● Javascript
○ Compatível com
Front-end
● + Maduro
● OOP decente
● PHP
○ Compatível com
código Back-end
● + Padronizado

38. Node.js ReactPHP
● + Packages / Libs
● Javascript
○ Compatível com
Front-end
● + Maduro
● OOP decente
● PHP
○ Compatível com
código Back-end
● + Padronizado

39. Remember...

40. Don't do
cargo cult programming

41. Trabalhe conosco (:
Backend / Frontend
gguitte@leroymerlin.com.br
Subject: [Vaga]

42. Fontes
ReactPHP
http://reactphp.org/
Why Use Node.js? - Tomislav Capan
http://www.toptal.com/nodejs/why-the-hell-would-i-use-node-js
Async PHP With React (Laracon) - Jeremy Mikola
https://www.youtube.com/watch?v=s6xrnYae1FU
Laravel Request Lifecycle
http://laravel.com/docs/5.0/lifecycle
Event Correlation: What you Need to Know For IT Operations Management - Michael Johnson
http://goo.gl/0bZFaP
Callback Hell - Max Ogden
http://callbackhell.com/

43. Fontes
Understanding the node.js event loop - Mikito Takada
http://blog.mixu.net/2011/02/01/understanding-the-node-js-event-loop/
Promises - Forbes Lindesay
https://www.promisejs.org/
I/O não bloqueante com select “na unha” (Perl) - Tiago Peczenyj
http://imasters.com.br/desenvolvimento/io-nao-bloqueante-com-ioselect-na-unha/
Reactor Pattern - Douglas C. Schmidt
http://www.dre.vanderbilt.edu/~schmidt/PDF/reactor-siemens.pdf
Differences between event driven model and reactor pattern? - Jean-Paul Calderone
http://stackoverflow.com/a/9143390
Cargo Cult Programming
http://en.wikipedia.org/wiki/Cargo_cult_programming