Riker/Lobby

Support for the Riker actor framework. https://riker.rs

nothingismagick

@nothingismagick

:wave:

prassee

@prassee

curious to know about remote actors support

prassee

@prassee

any one tried to communicate actors in two host via tokio

nothingismagick

@nothingismagick

we are working on using libp2p-noise (XX flavor handshake) for remote actors (sort of like the ask pattern here: https://riker.rs/patterns/ )

nothingismagick

@nothingismagick

(should say, with we, I meant an external group, not officially riker or anything.) hopefully tomorrow will have merged in the code and can share a link here.

Rohan Sircar

@rohan-sircar

Hi, Riker looks to be great! It would be great to have the ability to model state machines though. I use Akka Typed to model state machines with Actors a lot in Scala.

Linus Behrbohm

@mankinskin

Does anyone know what to do about 'there is no timer running, must be called from the context of Tokio runtime' when using Context::run? riker-rs/riker#150

Norman Jefferies

@njeff3_gitlab

Hi I was wondering also about remote capabilities. Is it possible to have separate processes access one ( the same ) actor system?

kporika

@kporika

how do we run riker under tokio runtime ?

[tokio::main]

async fn main() -> std::io::Result<()> {
let rt = tokio::runtime::Handle::current() ;
let sys = ActorSystem::new().unwrap(); // how do i add rt to the sys handle

Linus Behrbohm

@mankinskin

@kporika See this issue riker-rs/riker#150

Does anybody have a suggestion for how to access to an actor from a future spawned with Context::run? I would basically like to use self when running a future using ctx.run(async move { self.data = something().await; }) but of course that doesn't work. Can I use messages?

Linus Behrbohm

@mankinskin

Using a message enum and myself.tell works

Shafqat Ullah

@shafqatevo

Hi everyone, quick question, what's the per-actor memory overhead in Riker? In Akka, for example, the overhead is said to be around 360 bytes. In Pony, the overhead is object+256 bytes.

prassee

@prassee

is pony still around .... if so its good to know

Jess Bowers

@jessbowers

Pony hasn't been updated since 2018

Shafqat Ullah

@shafqatevo

Pony community is steadily growing and they're doing some updates to the lang runtime with https://github.com/jemc/mare

Bringing some ideas from Project Verona of Microsoft, where one of the Pony creators, Sylvan Clebsch is working on an evolution of Rust and Pony ideas.

Isitha Subasinghe

@isubasinghe

Hey all

Just a quick question

Does anyone know how to have actors messaging each other (cycles)

Rohan Sircar

@rohan-sircar

@isubasinghe You have to follow this pattern basically, but in Rust and with actor references -

class A(var b: Option[B])
class B(a: A)

val a = new A(None) // instance of B does not exist yet
val b = new B(a)
a.b = Some(b) // update reference to B

That's Scala pseudocode

werner291

@werner291

:wave: Riker looks neat, gonna try it! Though, how can stop the main thread from terminating while the system is still running? All of the examples appear to simply have the thread sleep 500ms before exiting. Is there some kind of sys.hold_until_done()?

Isitha Subasinghe

@isubasinghe

@rohan-sircar Thankyou I will use that pattern

Rohan Sircar

@rohan-sircar

@isubasinghe let me know if you face any problems

Fernando Hackbart

@fernando.hackbart_gitlab

Hello, I am starting with Riker (and Rust) but have some experience with Akka, I am trying to create an actor from within another actor, but not figuring out how to obtain the actor system (normally in Scala we inject it as an implicit variable), do I need to pass the actorSystem reference to the actor that needs to create actors as propoerties? Thx.

Fernando Hackbart

@fernando.hackbart_gitlab

I think I found it &_ctx.system.

Tyler Jones

@ghalsk:matrix.org

[m]

How do you know what the response type is for a given message and actor?

Tyler Jones

@ghalsk:matrix.org

[m]

https://riker.rs/faq/

Riker Cluster is currently in development

Where is this being developed? I dont see a branch for it the main riker repo, and I havnt found a riker-cluster repo, nothing in riker-patterns/branches

Tyler Jones

@ghalsk:matrix.org

[m]

Also, where are the configuration options for the actor system documented?

Tyler Jones

@ghalsk:matrix.org

[m]

Trying to solve an issue with ask macro, riker-rs/riker#27
I never get a response delivered. Maybe this is due to the response type not being expected?
How does ask! determine the response type to expect? The setup compiles but delivery of the reply to the "sender" (the tmp ask actor) fails.

Gregor

@GrxE

Hi, I am trying to use Riker in my application. Is there a way to use a custom logger (which implements the log::Log trait and logs to a DB) instead of the default logging (which logs to STDOUT)? So far I have installed my custom logger which logs via (log-carte´s) log-macros (warn!,info!,error! etc..), other libraries´s log messages (rustyline) appear as expected in my custom-DB logger, only the Riker logger logs to STDOUT. Any advise?

Mike Z

@mikezupper

@GrxE - rikers uses SLOG crate. They have all the feature you need. Take a look at the logger example: https://github.com/riker-rs/riker/blob/master/tests/logger.rs

Gregor

@GrxE

@mikezupper Thanks!

Gregor

@GrxE

@ghalsk:matrix.org I had the same thing, too. I used the code from the documentation to start with and it hang (with RemoteHandle<String> ) . RemoteHandle<u32> matched the message type in this case and the future got a result.

2 replies

Tyler Jones

@ghalsk:matrix.org

[m]

I'll have to re-remember my setup and review the code, it's been a while

Tyler Jones

@ghalsk:matrix.org

[m]

Thank you

Gregor

@GrxE

@ghalsk:matrix.org The working "ask" Example, from the documentation... https://github.com/GrxE/riker_ask_pattern

Tyler Jones

@ghalsk:matrix.org

[m]

Awesome, thanks buddy

2 replies

Tyler Jones

@ghalsk:matrix.org

[m]

@GrxE: in your case, your msg is the same sent as received,
https://github.com/GrxE/riker_ask_pattern/blob/master/src/main.rs#L10

1 reply

Im not sure what to do if I have some struct as the receive msg type Msg = ValidationMsg;, but my response is a different struct

Tyler Jones

@ghalsk:matrix.org

[m]

Sorry, just realized it is like 4:40 am there

Tyler Jones

@ghalsk:matrix.org

[m]

🤩

Gregor

@GrxE

Hi all! I am wondering what has happened to the EventStore from 0.2.4 . Is the current way of doing this to make a Channel-like actor that stores the messages?

Paul Masurel

@fulmicoton

Hello! Are there plans to support tokio as an Executor? I see different effort in github that seem being welcome, but end up discontinued.

(Riker ticks most of my needs, but one of the client library I rely on requires me to use tokio's runtime)

Berkus Decker

@berkus

Hi!

Is riker being developed? I see lots of hanging PRs and last updates were start of this year, which is waay back.

Having said that, Riker still has better user-friendly documentation than any other rust actor system, and thanks to that I was able to implement an actor-based telegram bot using riker and teloxide. Thanks for that!

Tyler Jones

@ghalsk:matrix.org

[m]

@berkus my impression has been close to abandonware, this channel sees almost no traffic, prs stale, questions on GitHub unanswered

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