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Re: Custom Storage Pool questions

From "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups comp.lang.ada
Subject Re: Custom Storage Pool questions
Date 2021-09-20 19:26 -0500
Organization JSA Research & Innovation
Message-ID <sib8rc$nda$1@franka.jacob-sparre.dk> (permalink)
References (8 earlier) <si2ud7$fv2$1@gioia.aioe.org> <iqkevvFr27rU1@mid.individual.net> <si45ls$1goa$1@gioia.aioe.org> <iqloa8F3sptU1@mid.individual.net> <si4ell$1b25$1@gioia.aioe.org>

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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message 
news:si4ell$1b25$1@gioia.aioe.org...
...
>> Given that an object can be allocated in multiple independent pieces, it 
>> seems unlikely that what you want will be provided.
>
> Such implementations would automatically disqualify the compiler. 
> Compiler-generated piecewise allocation is OK for the stack, not for user 
> storage pools.

If someone wants to require contigious allocation of objects, there should 
be a representation attribute to specify it. And there should not be an 
nonsense restrictions on records with defaulted discriminants unless you 
specify that you require contiguous allocation. There is no good reason to 
need that for 99% of objects, why insist on a very expensive implementation 
of slices/unconstrained arrays unless it's required??

...
> No, it is about the overhead of maintaining "collections" associated with 
> an access type in order to call Finalization for all members of the 
> collection.

How else would you ensure that Finalize is always called on an allocated 
object? Unchecked_Deallocation need not be called on an allocated object. 
The Ada model is that Finalize will ALWAYS be called on every controlled 
object before the program ends; there are no "leaks" of finalization. 
Otherwise, one cannot depend on finalization for anything important; you 
would often leak resources (especially for simple kernels that don't try to 
free unreleased resources themselves).

                               Randy.

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Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-12 17:53 -0700
  Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-13 00:29 -0500
    Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-13 18:04 -0700
      Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:06 -0500
    Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-18 12:32 +0100
    Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-19 17:31 -0700
      Re: Custom Storage Pool questions Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-09-20 09:34 +0300
        Re: Custom Storage Pool questions Emmanuel Briot <briot.emmanuel@gmail.com> - 2021-09-19 23:48 -0700
          Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-20 09:35 +0200
          Re: Custom Storage Pool questions Shark8 <onewingedshark@gmail.com> - 2021-09-20 09:59 -0700
          Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:50 -0500
            Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-21 16:08 -0700
              Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-27 23:42 -0500
                Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-10-02 16:19 -0700
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-03 10:52 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-10-13 20:26 -0500
  Re: Custom Storage Pool questions "J-P. Rosen" <rosen@adalog.fr> - 2021-09-13 13:12 +0200
    Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-13 17:48 -0700
      Re: Custom Storage Pool questions "J-P. Rosen" <rosen@adalog.fr> - 2021-09-14 08:08 +0200
        Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-14 17:39 -0700
          Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-15 08:01 +0100
            Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-16 16:32 -0700
              Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 18:51 -0500
                Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-21 15:40 -0700
      Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-14 08:23 +0200
        Re: Custom Storage Pool questions "J-P. Rosen" <rosen@adalog.fr> - 2021-09-14 08:42 +0200
          Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-14 09:00 +0200
          Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 18:58 -0500
        Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-14 17:21 -0700
          Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-15 08:54 +0200
        Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 18:48 -0500
      Re: Custom Storage Pool questions Egil H H <ehh.public@gmail.com> - 2021-09-14 03:54 -0700
        Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-14 17:11 -0700
  Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-15 17:43 +0100
    Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-15 18:03 +0100
    Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-15 21:07 +0200
      Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-15 21:40 +0100
        Re: Custom Storage Pool questions Emmanuel Briot <briot.emmanuel@gmail.com> - 2021-09-16 00:12 -0700
          Re: Custom Storage Pool questions Jere <jhb.chat@gmail.com> - 2021-09-16 16:21 -0700
            Re: Custom Storage Pool questions Emmanuel Briot <briot.emmanuel@gmail.com> - 2021-09-17 00:08 -0700
            Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-17 08:18 +0100
            Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-17 15:56 +0200
              Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-17 20:46 +0100
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-17 22:39 +0200
                Re: Custom Storage Pool questions Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-09-18 00:17 +0300
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-18 09:49 +0200
                Re: Custom Storage Pool questions Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-09-18 12:03 +0300
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-18 12:22 +0200
                Re: Custom Storage Pool questions Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-09-18 18:59 +0300
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-18 18:19 +0200
                Re: Custom Storage Pool questions Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-09-19 13:36 +0300
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-19 13:41 +0200
                Re: Custom Storage Pool questions Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-09-20 10:05 +0300
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-20 09:35 +0200
                Re: Custom Storage Pool questions Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-09-20 11:08 +0300
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-20 10:28 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:45 -0500
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:40 -0500
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:30 -0500
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:37 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-21 08:28 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-27 23:38 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-28 09:00 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:26 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-21 08:51 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-27 23:31 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-28 08:56 +0200
                Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-09-28 08:52 +0100
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-28 10:07 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-28 17:04 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-29 09:57 +0200
                Re: Custom Storage Pool questions Shark8 <onewingedshark@gmail.com> - 2021-09-29 07:41 -0700
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-29 17:16 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-29 19:16 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-30 10:08 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-30 19:04 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-01 10:25 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-10-02 04:06 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-02 12:18 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-10-02 23:33 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-03 10:40 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-10-13 20:21 -0500
                Re: Custom Storage Pool questions "philip...@gmail.com" <philip.munts@gmail.com> - 2021-10-13 20:12 -0700
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-14 09:31 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-10-14 19:36 -0500
                Re: Custom Storage Pool questions Stephen Leake <stephen_leake@stephe-leake.org> - 2021-10-15 01:08 -0700
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-15 10:18 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-10-15 17:22 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-15 10:15 +0200
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-10-15 17:44 -0500
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-16 11:00 +0200
                Re: Custom Storage Pool questions Simon Wright <simon@pushface.org> - 2021-10-16 15:32 +0100
                Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-10-16 17:06 +0200
                Re: Custom Storage Pool questions Shark8 <onewingedshark@gmail.com> - 2021-10-18 07:23 -0700
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:19 -0500
                Re: Custom Storage Pool questions "Randy Brukardt" <randy@rrsoftware.com> - 2021-09-20 19:18 -0500
        Re: Custom Storage Pool questions "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-09-16 10:41 +0200

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