Hi all,

For my research, I need a very simple driver, maybe even not a very realistic one, in which we have to deal with concurrency issues. The final aim is to analyze this code running on ARM platform.
First I chose the Linux USB driver as I thought we can have concurrency, because several devices can connect to the system with multiple requests running, but it turns out that the code of USB is quit complicated for my purpose.
I was wondering if anyone can suggest me a simple driver?
It can be any arbitrary driver, even not for Linux, just what I need is that it must be simple and we have concurrency inside it.

Many thanks in advance,

Hi,

Concurrency is dependent on hardware limitations for the CPU and available RAM. I would suggest looking at TCP since concurrent operations are a must. Simple concurrent operations for the TCP stack would be a good place to start. Out of the box, 65536 is the default so this will not be that simple!
Operations are handled by the concurrent interrupt scheduler for the stack operations.

You could look at: concurrent software for example of simple operations.

Hope this helps.

2 members found this post helpful.

Thanks onebuck,

We exactly need a software with both interrupts and threads, like what you mentioned in your link as well, but finally I need to work on its ARM code.
Do you mean the whole implementation of TCP/IP of linux? If I can work on a simple part of it, then it will be fine too. I was wondering if you could suggest me a small part of its implementation that is simple to work on.

Thanks,

Hi,

If you look at the example that I linked you will find several simple types for concurrent handling. Simple!

I was talking generally about TCP but the operation would be the same for Linux. You could look at: Issues In Concurrent Server Design on Linux Systems - Part I to provide a good scope for concurrent.

Hope this helps.

2 members found this post helpful.

Hi,

Thanks,
Yes, but actually what I need is the "source code" of this kind of software
that's why I started to look at Linux, as it is a real-life example and open source.

Hi,

Issues In Concurrent Server Design on Linux Systems - Part I to provide a good scope for concurrent, shows samples.

Thanks onebuck!