Re: Thread synchronization

From:

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 18 Oct 2007 08:29:52 -0400

Message-ID:

<Oj8PxKYEIHA.3400@TK2MSFTNGP03.phx.gbl>

"Mark" <mark@giron.com> wrote in message
news:uxZgW6XEIHA.1208@TK2MSFTNGP05.phx.gbl...

I have a classic scenario in which one thread fills a circular buffer and
some 5 other threads read the data.
The other details follows-
1. All threads operate independently.
2. Certain minimum and maximum difference limit the reading index of any
thread from the writing index. In other words, since the speed of all
threads are not similar the logic should limit the read index from the
write
index by some minimum difference and also by some maximum one.
3. I uses critical sections to ensure exclusive access to the buffer and
it
works fine.

I'm stack with the question which and how mechanisms of thread
synchronization should I use(events, semaphores etc...)
Besides, since I use MFC, should I use MFC wrappers or just win32 tools.

Can someone advise pleas?

The best approach is to use a critical section shared by all threads. There
is no good reason to use the MFC wrappers - they are not well designed.

--
Scott McPhillips [VC++ MVP]