looking for mutex usage

looking for mutex usage

[Marco Faella]

Dear maintainers,

I'm a researcher in computer science at the
University of California, Santa Cruz.

In my research group, we are developing a tool
that analyzes the synchronization
skeleton of multi-threaded programs.

We are focusing on eCos as our testbed, but
we haven't been able to find an interesting
test case so far.

Can you suggest any open source eCos application
that makes non-trivial use of synchronization primitives
like semaphores and mutexes?


Thank you for your help,
Marco Faella


-- 
Postdoctoral Researcher
University of California, Santa Cruz

mfaella@soe.ucsc.edu

Re: looking for mutex usage

[Andrew Lunn]

On Fri, Nov 19, 2004 at 05:47:02PM -0800, Marco Faella wrote:
> Dear maintainers,
> 
> I'm a researcher in computer science at the
> University of California, Santa Cruz.
> 
> In my research group, we are developing a tool
> that analyzes the synchronization
> skeleton of multi-threaded programs.
> 
> We are focusing on eCos as our testbed, but
> we haven't been able to find an interesting
> test case so far.
> 
> Can you suggest any open source eCos application
> that makes non-trivial use of synchronization primitives
> like semaphores and mutexes?

eCos is intended for deeply embeeded applications. Such applications
tend to use specialised hardware and so does not naturally lend itself
to open source applications. I cannot think of a single instance of
somebody making there application available via an open source
license.

To be honest you might be better changes OS. Take a look at
Linux. There are probably enought non-trivial uses of spinlocks and
semaphores inside the kernel that you don't even need a particularly
interesting application. Look at one of the filesystems that uses
kernel threads, eg nfsd or kjournald. With 2.6 and kernel preemption
this gets even more interesting.

     Andrew