Re: [Quickfix-developers] Faster logons

[Oren M. <or...@qu...>]

Yeah, we've been using this to pass messages around with our thread safe 
queue: 
http://cvs.sourceforge.net/viewcvs.py/quickfix/quickfix/src/C%2B%2B/Queue.h?view=markup

This was being used to pass buffers between the two threads that belong to a 
ThreadedSocketConnection.  With Caleb's latest contribution, we got rid of 
one of the threads and are no longer using it.  Needless to say it's gotten 
a good production workout over the years.  This request comes just in time 
for us to find another use for it :)

--oren

----- Original Message ----- 
From: "Brian Erst" <azz...@ya...>
To: <qui...@li...>
Sent: Thursday, November 03, 2005 1:10 PM
Subject: Re: [Quickfix-developers] Faster logons


QuickFIX Documentation: 
http://www.quickfixengine.org/quickfix/doc/html/index.html
QuickFIX Support: http://www.quickfixengine.org/services.html

Well, then, just ignore my last message. Sounds like a tweaked Event
object will do the trick perfectly!

- Brian Erst

--- Oren Miller <or...@qu...> wrote:

> We actually do have a cross platform Event object that should do the
> trick with a little modification:
>
http://cvs.sourceforge.net/viewcvs.py/quickfix/quickfix/src/C%2B%2B/Eventh?rev=1.4&view=markup.
>
> It uses WaitForSingleObject and pthread_cond_timedwait.  It is
> hardcoded to wait for 100 milliseconds.  If we just add a wait()
> signature where we can pass in a value for the time, this class would
> probably be perfect.
>
> --oren
>   ----- Original Message ----- 
>   From: Dale Wilson
>   Cc: qui...@li...
>   Sent: Thursday, November 03, 2005 12:54 PM
>   Subject: Re: [Quickfix-developers] Faster logons
>
>
>   Brian Erst wrote:
> <SNIP>
> I would also suggest that the use of process_sleep is a bad idea -
> whenever I need to code a sleep-type function, I use a mutex and a
> WaitForSingleObject with the sleep time as the timeout. That way, I
> can
> interrupt the sleep (by triggering the mutex) if the reason for the
> sleep has gone away (or so I don't have to wait 30 seconds to bring
> my
> application down if I'm sleeping). Makes things much more responsive.
>   An excellent idea with one very important drawback.
> WaitForSingleObject with a timeout is a WIN32 concept.
>   It is possible, but not necessarily easy, to code an equivalent
> functionality on a posix system using pthread_cond_timedwait.
>   If QuickFIX were going to use this technique someone would have to
> beef up its cross-platform thread synchronization support.
>
>   Dale
>
>
> - Brian Erst
> Thynk Software, Inc.
>
>
>   -- 
>
> -----------------------------------------------------
>   Dale Wilson, Senior Software Engineer
>   Object Computing, Inc. (OCI)
>   http://www.ociweb.com/  http://www.theaceorb.com/
> ----------------------------------------------------



-------------------------------------------------------
SF.Net email is sponsored by:
Tame your development challenges with Apache's Geronimo App Server. Download
it for free - -and be entered to win a 42" plasma tv or your very own
Sony(tm)PSP.  Click here to play: http://sourceforge.net/geronimo.php
_______________________________________________
Quickfix-developers mailing list
Qui...@li...
https://lists.sourceforge.net/lists/listinfo/quickfix-developers