Goldschmidt Simon wrote:
So far I have used Win32, µC/OS-II and embOS and I haven't used
condidtion variables before (or I don't get your examples...).
Can you give an example under thos systems or linux?
pthread_cond_wait on linux/POSIX, and SignalObjectAndWait and
WaitForSingleObject on Win32 (taking mutexes as the object).
But WaitForSingleObject() is like mutex_lock() (with a timeout), isn't it?
Where's the condition variable with that? Or did you mean to implement
counting semaphores using mutexes???
Sorry, I wasn't clear - SignalObjectAndWait is the more important and
interesting one, and it takes an Event. Signalling the condition variable
is SetEvent.
Anyway, this is getting rather off-topic. And I think with the approach
we're now discussing in bug #200021, we won't need to worry about specific
semaphore implementations any more anyway.
Jifl
--
eCosCentric Limited http://www.eCosCentric.com/ The eCos experts
Barnwell House, Barnwell Drive, Cambridge, UK. Tel: +44 1223 245571
Registered in England and Wales: Reg No 4422071.
------["The best things in life aren't things."]------ Opinions==mine
_______________________________________________
lwip-users mailing list
[email protected]
http://lists.nongnu.org/mailman/listinfo/lwip-users
