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From: Thierry Lelegard <thierry.lelegard@canal-plus.fr>
Subject: Re: Server - tasking and long lived connections
Date: Mon, 17 Dec 2001 11:16:13 +0100
Date: 2001-12-17T11:16:13+01:00	[thread overview]
Message-ID: <3C1DC5ED.9E9F11F1@canal-plus.fr> (raw)
In-Reply-To: 9vkecb$a6v$1@s1.read.news.oleane.net

Jean-Pierre Rosen wrote :
> 
> "Thierry Lelegard" <thierry.lelegard@canal-plus.fr> a �crit dans le message news: 3C1DB7B7.DF767F9@canal-plus.fr...
> > I think that the trap in this kind of applications (servers with one
> > or more tasks per client connection) is the fate of the tasks when
> > the client disconnects. If you let the tasks die and recreate new
> > tasks for new client connections, you will most certainly face some
> > slow memory leak. We have seen that, although the stack itself is
> > deallocated when a task dies, there aer a few bytes which remain
> > allocated (some kind of TCB I suppose).
> >
> This was due to the (in)famous Rosen's pathology ;-)
> It has been (fortunately) exterminated in in Ada 95, so the problem should not appear any more.

Quite interesting. Could you elaborate on this? What kind of change was
introduced in Ada95 to eliminate this?

-Thierry
____________________________________________________________________________

Thierry Lelegard, "The Jazzing Troll", Email: thierry.lelegard@canal-plus.fr
CANAL+ Technologies, 34 place Raoul Dautry, 75906 Paris Cedex 15, France
Tel: +33 1 71 71 54 30   Fax: +33 1 71 71 52 08   Mobile: +33 6 03 00 65 75
____________________________________________________________________________



  reply	other threads:[~2001-12-17 10:16 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-12-13  3:23 List Container Strawman 1.4 Ted Dennison
2001-12-13 18:11 ` Brian Hanson
2001-12-13 23:02 ` Nick Roberts
2001-12-14 15:19   ` Ted Dennison
2001-12-14 23:54     ` Ted Dennison
2001-12-15  2:06       ` Server - tasking and long lived connections Eric Merritt
2001-12-15  3:10         ` James Rogers
2001-12-15 12:10           ` Florian Weimer
2001-12-15 14:38         ` Larry Kilgallen
2001-12-15 16:51         ` Steve Doiel
2001-12-17  9:15         ` Thierry Lelegard
2001-12-17  9:34           ` Jean-Pierre Rosen
2001-12-17 10:16             ` Thierry Lelegard [this message]
2001-12-18  9:08               ` Jean-Pierre Rosen
2001-12-17 15:08             ` Larry Kilgallen
2001-12-17 15:39               ` Pat Rogers
2001-12-19 18:20         ` Matthew Heaney
2001-12-19 18:50           ` Eric Merritt
2001-12-15  1:20     ` List Container Strawman 1.4 Nick Roberts
2001-12-15 20:29       ` Ted Dennison
2001-12-16 18:45         ` Nick Roberts
2001-12-21 15:53           ` Ted Dennison
2001-12-21 16:42             ` Marin David Condic
2001-12-21 18:28               ` Ted Dennison
2001-12-21 18:47                 ` Marin David Condic
2001-12-21 19:39                   ` Ted Dennison
2001-12-21 19:48                     ` Marin David Condic
2001-12-22 12:29                     ` Simon Wright
2001-12-21 20:03                   ` Nick Roberts
2001-12-21 16:52             ` Marin David Condic
2001-12-21 18:41               ` Ted Dennison
2001-12-21 19:14                 ` Marin David Condic
2001-12-21 21:13                   ` Ted Dennison
2001-12-22  5:34                     ` John B. Matthews
2001-12-21 20:19                 ` Stephen Leake
2001-12-21 21:35                   ` Ted Dennison
2001-12-24 11:58               ` Florian Weimer
2001-12-24 14:42                 ` Eric Merritt
2001-12-24 22:47                 ` Ted Dennison
2001-12-25 22:15                   ` Florian Weimer
2001-12-28 13:58                     ` Ted Dennison
2001-12-21 17:43             ` Stephen Leake
2001-12-21 18:44               ` Ted Dennison
2001-12-16 21:53         ` Larry Hazel
2001-12-15 22:27           ` Ted Dennison
2001-12-16  4:32             ` Darren New
2001-12-24 13:53               ` Florian Weimer
2001-12-15 23:19 ` Florian Weimer
2001-12-16  4:46   ` Ted Dennison
2001-12-24 13:57     ` Florian Weimer
2001-12-28 14:00       ` Ted Dennison
2001-12-28 16:43         ` Hyman Rosen
2001-12-28 19:12           ` Nick Roberts
2001-12-28 19:49           ` Matthew Heaney
2001-12-29 23:23             ` Matthew Heaney
2001-12-30  6:31               ` Hyman Rosen
2002-01-03  0:09                 ` Matthew Heaney
2002-01-03  0:20                   ` Brian Rogoff
2001-12-17  8:34   ` Mark Lundquist
2001-12-18 21:56     ` Florian Weimer
2001-12-18 21:54       ` Larry Kilgallen
2001-12-18 22:34       ` Mark Lundquist
2001-12-19  4:03         ` Nick Roberts
2001-12-24 13:54           ` Florian Weimer
     [not found] <3C1ABF3F.8CDCC8F9@worldnet.att.net>
2001-12-15  4:42 ` Server - tasking and long lived connections Eric Merritt
2001-12-15 12:18   ` Florian Weimer
2001-12-15 17:56     ` Eric Merritt
     [not found] <20011215175619.80358.qmail@web13002.mail.yahoo.com>
2001-12-17  3:43 ` Steven Deller
     [not found] <000001c186ac$fb7b4020$1337e5c0@STEVEN>
2001-12-17  5:17 ` Eric Merritt
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