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From: Georg Bauhaus <bauhaus@futureapps.invalid>
Subject: Re: Running a preprocessor from GPS?
Date: Fri, 31 Jul 2015 09:29:19 +0200
Date: 2015-07-31T09:29:19+02:00	[thread overview]
Message-ID: <mpf81h$d82$1@dont-email.me> (raw)
In-Reply-To: <4cb32c40-f659-490d-bbb6-73585fc069e8@googlegroups.com>

On 30.07.15 22:53, EGarrulo wrote:
> By "resource" I mean any resource -- like: database connections,
> files, etc. -- that must be relinquished as soon as possible and that is
> shared among different objects, in a way that makes it difficult for each object
> to determine whether such resource is still needed by other objects or not.  Of
> course, this implies a dynamic environment that precludes the possibility of
> creating all the needed resources in advance and then releasing them at the end
> of computation.

This kind of automatic resource management cannot be real:
How could anything other than the entire collection of objects using
the resource determine whether any one of them still needs the resource?

Therefore, if you have several objects using the resource,
possibly in different tasks, handle the resource with the
help of a protected object.

The protected object implements a protocol. An object wishing
to use the resource will ask the PO for a handle, and will get one ASAP.
In simple cases, the resource can be released by the PO as soon
as all users have signaled to the protected object that they are
done with the resource.


  parent reply	other threads:[~2015-07-31  7:29 UTC|newest]

Thread overview: 175+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-27 14:28 Running a preprocessor from GPS? EGarrulo
2015-07-27 16:47 ` David Botton
2015-07-27 17:17   ` EGarrulo
2015-07-27 20:26 ` Randy Brukardt
2015-07-27 21:14   ` Jeffrey R. Carter
2015-07-27 22:23     ` EGarrulo
2015-07-28  7:23       ` Simon Wright
2015-07-28 11:36   ` EGarrulo
2015-07-28 21:12     ` Randy Brukardt
2015-07-28 22:11       ` EGarrulo
2015-07-28 22:41         ` EGarrulo
2015-07-29  9:52           ` G.B.
2015-07-29 20:32         ` Randy Brukardt
2015-07-29 22:32           ` EGarrulo
2015-07-29 23:51             ` Jeffrey R. Carter
2015-07-30  0:10               ` EGarrulo
2015-07-30  6:01                 ` Niklas Holsti
2015-07-30  7:33                   ` Björn Lundin
2015-07-30  8:03                     ` EGarrulo
2015-07-30  8:08                       ` Jacob Sparre Andersen
2015-07-30  8:37                         ` EGarrulo
2015-07-30  8:49                           ` Georg Bauhaus
2015-07-30 12:15                             ` EGarrulo
2015-07-30 14:11                               ` G.B.
2015-07-30 19:29                           ` Jeffrey R. Carter
2015-07-30 20:53                             ` EGarrulo
2015-07-30 22:52                               ` Jeffrey R. Carter
2015-07-31  7:29                               ` Georg Bauhaus [this message]
2015-07-31  7:53                               ` gautier_niouzes
2015-07-31  8:26                               ` Simon Wright
2015-07-31  9:13                                 ` Dmitry A. Kazakov
2015-07-31  9:31                                   ` EGarrulo
2015-07-31 11:01                                     ` Dmitry A. Kazakov
2015-07-31 13:50                                       ` EGarrulo
2015-07-31 16:29                                         ` Dmitry A. Kazakov
2015-07-31 11:26                               ` Brian Drummond
2015-07-31 12:12                                 ` EGarrulo
2015-07-31 12:15                                 ` EGarrulo
2015-07-31 17:54                                 ` Jeffrey R. Carter
2015-07-31 18:20                                   ` EGarrulo
2015-07-31 18:51                                     ` Jeffrey R. Carter
2015-08-01  7:20                                     ` Simon Wright
2015-08-01  8:06                                       ` EGarrulo
2015-08-01  8:33                                         ` Simon Wright
2015-08-01 10:47                                           ` EGarrulo
2015-08-01 11:27                                             ` Simon Wright
2015-08-01 11:44                                             ` Niklas Holsti
2015-08-01 12:19                                               ` EGarrulo
2015-08-01 17:49                                                 ` Jeffrey R. Carter
2015-08-01 18:15                                                   ` Paul Rubin
2015-08-01 18:59                                                     ` Jeffrey R. Carter
2015-08-01 20:30                                                     ` Georg Bauhaus
2015-08-01 20:44                                                   ` EGarrulo
2015-08-01 22:44                                                     ` Jeffrey R. Carter
2015-08-01 23:39                                                       ` EGarrulo
2015-08-02  0:02                                                         ` Jeffrey R. Carter
2015-08-02  0:18                                                           ` EGarrulo
2015-08-02  0:30                                                           ` EGarrulo
2015-08-02  6:05                                                             ` Jeffrey R. Carter
2015-08-02  8:29                                                               ` EGarrulo
2015-08-02 19:21                                                                 ` Jeffrey R. Carter
2015-08-02 21:37                                                                   ` EGarrulo
2015-08-03  2:35                                                                     ` Jeffrey R. Carter
2015-08-02  2:53                                                       ` Paul Rubin
2015-08-02  6:07                                                         ` Jeffrey R. Carter
2015-08-02  8:36                                                         ` EGarrulo
2015-08-01 16:53                                         ` Jeffrey R. Carter
2015-08-01 17:00                                       ` Jeffrey R. Carter
2015-08-01  7:48                                     ` Dmitry A. Kazakov
2015-07-30  8:23                       ` Georg Bauhaus
2015-07-30  8:45                         ` EGarrulo
2015-07-30  9:19                           ` Dmitry A. Kazakov
2015-07-30 11:22                           ` Niklas Holsti
2015-07-30 13:00                             ` EGarrulo
2015-07-30 13:30                               ` Dmitry A. Kazakov
2015-07-30 13:51                                 ` EGarrulo
2015-07-30 14:13                                   ` Dmitry A. Kazakov
2015-07-30 14:46                                     ` Simon Wright
2015-07-30 14:31                           ` G.B.
2015-07-30 18:46                           ` Randy Brukardt
2015-07-30  9:18                         ` EGarrulo
2015-07-30 18:55                           ` Randy Brukardt
2015-07-30 19:32                             ` EGarrulo
2015-07-31  0:10                               ` Randy Brukardt
2015-07-30 11:35                         ` Brian Drummond
2015-07-30 13:30                           ` EGarrulo
2015-07-31 11:07                             ` Brian Drummond
2015-07-30  8:28                       ` Pascal Obry
2015-07-30 12:00                         ` EGarrulo
2015-07-30 10:01                       ` Björn Lundin
2015-07-30 10:59                         ` Pascal Obry
2015-07-30 11:21                       ` gautier_niouzes
2015-07-30 18:35                   ` Randy Brukardt
2015-07-31 15:21                     ` Stefan.Lucks
2015-07-31 17:28                       ` Pascal Obry
2015-08-01 11:38                       ` Björn Lundin
2015-08-01 20:07                         ` Stefan.Lucks
2015-08-03 23:26                       ` Randy Brukardt
2015-07-30  6:08             ` Dmitry A. Kazakov
2015-07-30  6:37             ` Georg Bauhaus
2015-07-30  8:27             ` Pascal Obry
2015-07-30  9:22               ` Dmitry A. Kazakov
2015-07-30 11:51               ` EGarrulo
2015-07-30 12:23                 ` Dmitry A. Kazakov
2015-07-30 13:55                   ` Niklas Holsti
2015-08-30  7:03                     ` David Thompson
2015-07-30 14:07                   ` EGarrulo
2015-07-30 18:12                 ` Jeffrey R. Carter
2015-07-30 18:51                   ` EGarrulo
2015-07-30 19:27                     ` Jeffrey R. Carter
2015-07-30 19:54                       ` EGarrulo
2015-07-30 22:53                         ` Jeffrey R. Carter
2015-07-30 23:58                     ` Randy Brukardt
2015-07-30 11:54               ` EGarrulo
2015-07-30 12:42                 ` Pascal Obry
2015-07-30 13:21                   ` EGarrulo
2015-07-30 13:38                     ` Dmitry A. Kazakov
2015-07-30 13:55                       ` EGarrulo
2015-07-30 15:23             ` Niklas Holsti
2015-07-30 19:32             ` Randy Brukardt
2015-07-30 20:10               ` EGarrulo
2015-07-31  0:23                 ` Randy Brukardt
2015-07-31  6:29                   ` Dmitry A. Kazakov
2015-08-02 10:08                   ` EGarrulo
2015-08-02 12:15                     ` EGarrulo
2015-07-29 23:45           ` EGarrulo
2015-07-30  0:25             ` Jeffrey R. Carter
2015-07-30  8:12               ` EGarrulo
2015-07-30 18:01                 ` Jeffrey R. Carter
2015-07-29  6:46       ` Simon Wright
2015-07-29  7:17         ` Dmitry A. Kazakov
2015-07-29 19:57         ` Randy Brukardt
2015-07-29 20:09           ` Jeffrey R. Carter
2015-07-30 18:16             ` Randy Brukardt
2015-07-29 20:38           ` Simon Wright
2015-07-30  7:50             ` Jacob Sparre Andersen
2015-07-30 14:48               ` G.B.
2015-07-30 15:58                 ` Simon Wright
2015-07-30 15:13             ` EGarrulo
2015-07-30 15:21               ` EGarrulo
2015-07-30 15:29               ` G.B.
2015-07-30 16:02               ` Simon Wright
2015-07-30 16:15               ` Simon Wright
2015-07-30 16:29                 ` EGarrulo
2015-07-30 17:31                   ` Simon Wright
2015-07-28 10:28 ` Brian Drummond
2015-07-28 11:39   ` EGarrulo
2015-07-29 10:02     ` Brian Drummond
2015-07-29 10:29     ` Brian Drummond
2015-07-29 12:00       ` EGarrulo
2015-07-29 19:23         ` gautier_niouzes
2015-07-28 11:43 ` Björn Lundin
2015-07-28 11:51   ` Dmitry A. Kazakov
2015-07-28 12:06     ` EGarrulo
2015-07-28 12:54       ` Dmitry A. Kazakov
2015-07-28 13:18         ` EGarrulo
2015-07-28 13:49           ` EGarrulo
2015-07-28 14:02             ` Bob Duff
2015-07-28 14:57             ` G.B.
2015-07-28 15:36           ` Dmitry A. Kazakov
2015-07-29  7:15           ` Stefan.Lucks
2015-07-29  7:52             ` EGarrulo
2015-07-29 17:30               ` Stefan.Lucks
2015-07-29 18:49                 ` Jeffrey R. Carter
2015-07-29 20:40                   ` Randy Brukardt
2015-07-30  7:40                     ` gautier_niouzes
2015-07-30 19:22                       ` Randy Brukardt
2015-07-28 13:06       ` G.B.
2015-07-28 13:19         ` EGarrulo
2015-07-28 20:55           ` Randy Brukardt
2015-07-28 22:31             ` EGarrulo
2015-07-29 20:09               ` Randy Brukardt
2015-07-29 22:40                 ` EGarrulo
2015-07-28 12:07     ` Björn Lundin
2015-07-31 19:44 ` Per Sandberg
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