Re: [Cppcms-users] Server

[Artyom B. <art...@gm...>]

On Sun, Jan 3, 2016 at 10:44 AM, eric middelkoop
<mid...@gm...> wrote:
> Hi Artyom,
>
> Thank you for your quick response. That really did the trick!
>
> I have two other questions:
> 1) How does the "id" work under water? Is it that I just always need the id
> and can add any data underneath it?

Take a look on description of Server Sent Events:

http://www.w3.org/TR/eventsource/

It is required for the client to automatic synchronization with the server
in case of disconnect.

> 2) How does cppcms handle exceptions? For instance I have an Ajax-call to a
> method and that method throws, but it seems that the exception is swallowed
> somewhere as it does not appear anywhere?
>

Depends...

1. If the exception is thrown from cppcms::application::main (i.e.
request handler)
it would be wrtten into log (of course if logging enabled)
2. If it is thrown in the event loop thread - outside of ordinary
request it would propagate
all the way outside cppcms::service::run()

>
> Ps. A nice comet-example with signals2 might be applicable for others as
> well.

That is what mailing list for :-)

I think boost::signal(2) is good for "broadcasting" a signal to
multiple listeners
it is less interesting in case of one event sent to a specific target I'd just

> --
> Groetjes,
> Eric
>

Regards.
  Artyom