Subj : Re: Study Material for Multi-threaded application developement in UNIX/LINUX
To   : comp.programming.threads
From : Arash Partow
Date : Thu May 26 2005 06:28 pm

Hi Uenal,

No if they were static then you could only ever have one instance of
POSIXCondition. The condition variable once created can be passed
around by reference to other threads which will use the variable either

to wait on or to signal / waiting threads.

The reason for the loop and such... is because signal and broadcast
are two different waking mechanisms. In the pthreads standard
broadcast wakes every waiting thread on the condition where as signal
wakes the thread that as been waiting the longest or in other words
was the first to call wait on that condition - aka first in queue.


Regard



Arash Partow
__________________________________________________
Be one who knows what they don't know,
Instead of being one who knows not what they don't know,
Thinking they know everything about all things.
http://www.partow.net

.