thank youuuuuuuuuuuuu :)

Hi and welcome to devnet,

AFAIK, it's not possible on a "per application" basis. Qt's network stack uses what the OS provides.

@karthik23 said:

where should i insert this code exactly?

where you need it :)
I mean u asked the question because you want to achieve something.
Since it's still not very clear what you want as the final result, i can't help you.

For testing you can add it in the line where your qDebug() calls is.

@mrjj Thank you a lot, it works!!!

Hi,

You have the Fortune server and Fortune client that can serve as base to get you started. The main "detail" is that you want to exchange the sender and receiver part but the technique described there is still valid.

Out of curiosity, how much is "large amount of data" ?

@dflass

Does the if else statement not prevent a the null pointer?

Well, not really, no. QTcpServer::listen doesn't block, its return value just indicates whether or not your request to listen to a port was successful. This doesn't at all guarantee that you have pending connections for that server socket. As @koahnig pointed out, you should use signals and slots to connect to the interesting events generated by your server socket and handle them appropriately. Do follow his suggestion, and look at the server/client examples, which will give you a good overview on how to setup a TCP server/client application properly.

Kind regards.

@raf924 Makes perfect sense, thanks! :)

@stereomatchingkiss Indeed, such a huge amount of connections in such a short time would rather need a thread pool, otherwise you're going to starve your system.

@ealione said:

How can I get all open connections on my TCP server?

You need to do this in the code??
In that case you have to store the list on connections in some containers (QVector, QMap, ...)

You're welcome