Question: Printing to stdout while replxx is active

[Naios]

Hello,
I was experimenting with the replxx example andthe following question came up:
While asking replxx for some input using rx.input(prompt); is it possible to
print something to stdout meanwhile?

For instance when developing a server application which regularly prints something to stdout
could replxx be used as command line interface such that a console logger stays active
while replxx is still usable?

My own tests have shown that printing interferes with the repl:

  std::thread t([&] {
    while (true) {
      rx.print("some stuff\n");
      std::this_thread::sleep_for(std::chrono::seconds(2));
    }
  });

[AmokHuginnsson]

Hello.

Right now replxx does not support feature you are mentioning.
I am open to accept a pull request for the code adding this feature.
I imagine it would involve adding this functionality to Replxx::print() method,
but it requires adding some wake up mechanism to character reading functions
(io.cxx) that would allow to update screen after each Replxx::print() invocation.
So that the replxx prompt and replxx user input is always refreshed from the Replxx::input() thread.
It could be worthwhile to code Replxx::print() the same way, I mean, prints from other threads always
push messages to Replxx message queue (which would have to be implemented in proposed patch).

[doug-moen]

I would use this feature if it were available.

[Naios]

@AmokHuginnsson Thank you for your answer, I would also look forward that anyone would propose a PR for this.

[api-Hypernova]

Great idea, would definitely use this in my application if available.

[AmokHuginnsson]

@doug-moen, @api-Hypernova, @yury, @Naios
Can you guys check if current master provides requested feature for you?

[AmokHuginnsson]

Requested feature is implemented on master.