[LCP] Multi threading programming

[Kim Hawtin]

Christopher Howard wrote:
> I'm am entirely unexperienced at multi threaded programming, but am about 
> to try and figure it out. For one of my programs I wanted to create a 
> simple "internal counter" function which which sleeps for 1000 
> milliseconds, then increments a global variable which other functions can 
> read. (I know this doesn't work as an accurate clock, but that is okay.)
> 
> My question: Does the global variable have to be some kind of atomic 
> variable? Will this still work correctly if it is an int or a long int? I 
> read something on the Internet about locking variables... does that apply 
> here?
> 
> Any (simple) examples would also be appreciated. Thank you in advance.

I have recently discovered 'antithread' from CCAN; http://ccan.ozlabs.org/list.html
I'm working my way through some other problems right now, so haven't used it yet.

There is also a channel on irc.freenode.net, #ccan

regards,

Kim
-- 
Operating Systems, Services and Operations
Information Technology Services, The University of Adelaide
kim.hawtin at adelaide.edu.au