[Interest] Process isolation with Qt - how to communicate with child processes

[Alan Ezust]

I would recommend using the QProcess class. It emits signals when you need
to read data from it.


On Mon, Jan 4, 2016 at 9:00 AM, Etienne Sandré-Chardonnal <
etienne.sandre at m4x.org> wrote:

> Dear All,
>
> I have a server app which currently spawns threads for processing tasks
> from incoming connections.
>
> I need to isolate these tasks in processes instead of threads (there are
> several reasons for this, including the fact that tasks will run possibly
> bugged plugin code and this should not crash the server process).
>
> What is the best Qt way to communicate with the child processes? I have
> first thought using standard input/output, but it seems that it's
> impossible to wait for incoming data from stdin without polling. The other
> alternative I see is TCP Sockets, but is there an overhead? The amount of
> data may be quite large (a few MB/s).
>
> Thanks for your hints!
>
> Etienne
>
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