Técnicas avanzadas de programación Asíncrona - 2017

Técnicas avanzadas
de programación
Asíncrona
Victor M. Bolinches

Programación Asíncrona vs Síncrona

Programación Asíncrona vs Síncrona
[…Synchronous…]

Patrón promesa
→ ⇒ ⇒ ⇒

Patrón promesa
→ Callbacks Hell

Patrón promesa
Resolve(T input) Reject(T input)
Promise<T>
Status : pending
Promise<T>
Status : pending
CallBack : <Resolve,Reject>
Promise<T>
Status :
Completed - Promise.then(Callback(T))
Failed - Promise.catch(Callback(error))
Promise.then(Callback(T)) Promise.catch(Callback(error))

Patrón promesa
Promise.Create((resolve, reject) => {
if(Math.Random(0,1) % 2 == 0)
resolve("¡Éxito!");
else
reject("¡Fallo!");
})
.then((successMessage) => {
debug("¡Sí! " + successMessage); // "¡Sí! ¡Éxito! fin"
})
.catch((failedMessage) => {
debug("¡No! " + failedMessage); // "¡No! ¡Fallo! fin"
})
.finally(()=> {
debug("fin");
});

Common Language Runtime
●
●
●
○
○
●

Emulador Gameboy
→ Custom BackLights

Emulador Gameboy
→ Load Async Rom

Emulador Gameboy
→ Load Async Rom
...
LoadAsync Rom
Init
Memory Map
SRAM
OAM
Logo Nintendo
...
Lobby/Cover
Game

Emulador Gameboy
→ Load Async Rom
public static CompletableFuture<ByteBuffer> read(String filePath, int total) throws Exception {
final CompletableFuture<ByteBuffer> completableFuture = new CompletableFuture();
final AsynchronousFileChannel channel = AsynchronousFileChannel.open(Paths.get(filePath), StandardOpenOption.READ);
final ByteBuffer buffer = ByteBuffer.allocate(total);
channel.read(buffer, 0, null, new CompletionHandler<Integer, Void>() {
@Override public void completed(Integer result, Void attachment) {
try { channel.close(); } catch (IOException e) { e.printStackTrace(); }
buffer.flip();
completableFuture.complete(buffer);
}
@Override public void failed(Throwable exc, Void attachment) {
completableFuture.completeExceptionally(exc);
}
});
return completableFuture;
}

Emulador Gameboy
→ Rendering

Emulador Gameboy
→ Técnicas de pintado

Emulador Gameboy
→ Técnicas de pintado
•
•
•
•
•
•

Emulador Gameboy
→ Scanlines

Emulador Gameboy
→ Scanlines Verticales

Emulador Gameboy
→ Scanlines Horizontales

Emulador Gameboy
→ Scanlines Mixes

Emulador Gameboy
→ Scanlines
•
•
•
•

Emulador Gameboy
→ Técnica Scanlines

Emulador Gameboy
→ Scanlines
•

Emulador Gameboy
→ Tareas futuras
…

Coroutine
•
•
•
•
•
•
•

Coroutine
→ Project Structure

Coroutine
fun main(args: Array<String>) {
launch(CommonPool) {
delay(1000L) // Non-blocking
println("World!")
}
println("Hello,")
Thread.sleep(2000L) //Block main thread
}
Result : Hello,
world!
fun main(args: Array<String>) = runBlocking<Unit> {
launch(CommonPool) {
println("World!")
}
println("Hello,")
}
Result : Hello,
world!

Coroutine
fun main(a:Array<String>) = runBlocking<Unit> {
val job = launch(CommonPool) { doWorld() }
println("Hello,")
job.join()
}
suspend fun doWorld() {
delay(1000L)
println("world!")
}
Result : Hello,
world!
fun main(args: Array<String>) = runBlocking<Unit> {
val jobs = List(100000) {
async(CommonPool) {
delay(500L)
print("*")
}
}
jobs.forEach { it.await() }
}
Result : **** ...
Con Thread`s : out-of-memory… (OEME)

GBEE v.0.2.1
→ List View Asynk ( Java )

GBEE v.0.2.3
→ Grid View Asynk

Work - Flow
•
•
•
•
•
•

Backend - to - Frontend pattern

Intro Street Fighter ( Arcade )

Intro Fighting Street ( PC-Engine )

Doodle Jump Xbox360 fo Web
•
•

Doodle Jump Xbox360 fo Web
→

Referencias
→ Transparencias con ejemplos técnicos

●
●
●
●
●
●
●
●
●
●

•
•
•
•
•
•
•
•
•
•
•
•
•

•
•
•
•
•
•
•
•
•
•
•
•

With more than 190,000 people, Capgemini is present in over 40
countries and celebrates its 50th Anniversary year in 2017. A
global leader in consulting, technology and outsourcing services,
the Group reported 2016 global revenues of EUR 12.5 billion.
Together with its clients, Capgemini creates and delivers business,
technology and digital solutions that fit their needs, enabling them
to achieve innovation and competitiveness. A deeply multicultural
organization, Capgemini has developed its own way of working,
the Collaborative Business Experience™, and draws on
Rightshore®
, its worldwide delivery model.
About Capgemini
Learn more about us at
www.capgemini.
com
This message contains information that may be privileged or
confidential and is the property of the Capgemini Group.
Copyright © 2017 Capgemini. All rights reserved.
Rightshore®
is a trademark belonging to Capgemini.
This message is intended only for the person to whom it is addressed. If you are not the intended
recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this
message or any part thereof. If you receive this message in error, please notify the sender
immediately and delete all copies of this message.

Técnicas avanzadas de programación Asíncrona - 2017

Recommended

Recommended

More Related Content

Similar to Técnicas avanzadas de programación Asíncrona - 2017

Similar to Técnicas avanzadas de programación Asíncrona - 2017 (20)

More from Víctor Bolinches

More from Víctor Bolinches (6)

Recently uploaded

Recently uploaded (20)

Técnicas avanzadas de programación Asíncrona - 2017