Aaron Smith wrote:
>
> On Thu, 24 Jun 1999 20:14:19 CDT, Alfred Perlstein writes:
> >I'm not sure what you mean by the refernce to malloc types, I just
> >thought something along the lines of mutex_t with an API
> >for trying, allocating, freeing and initializing them.
>
> i'd really like to implement some of the basic solaris primitives: mutex,
> cv (condition variable), sema p/v. i sent a message to the smp list on this
> at one point but didn't get much of a response other than cranky noises
> about "super fine-grained locking isn't worth it". what i'd like to see is
> the groundwork laid for finER locking so that we can gradually break up the
> points of contention. mutex/cv/sema are intuitive and taught in every OS
> course; i don't feel "simple_lock" or "lockmgr" are desirable or adequate.
>
> i'm willing to work on it, but i can't get to it for at least a couple of
> months, so i'm hoping someone else wants to work on it too.
Here's a couple of good research points:
uC/OS II by Jean J. Labrosse. This books presents the source for a
small, embeddable kernel. It is quite good, and clearly explained.
The kernel supports a rich set of threading tools, including sema-
phores, mailboxes, and message queues. http://www.ucos-ii.com/ or
just buy the book. ;^)
eCos, from Cygnus support. A "community source license" embedded OS.
I haven't worked with eCos much (yet), but it should be pretty
comprehensive. http://www.cygnus.com/ecos/ for more info.
RTEMS, a GPL'd embedded kernel. RTEMS was designed for multiprocessor
systems from the ground up, and has a rich set of SMP-related tools.
Seehttp://www.oarcorp.com/rtems/rtems.html for information and down
loads.
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
http://www.softweyr.com/~softweyr [EMAIL PROTECTED]
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