All of lore.kernel.org
 help / color / mirror / Atom feed
From: Paul Brook <paul@codesourcery.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Kevin Wolf <kwolf@redhat.com>, Avi Kivity <avi@redhat.com>,
	Markus Armbruster <armbru@redhat.com>,
	qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] Permit zero-sized qemu_malloc() & friends
Date: Mon, 7 Dec 2009 16:24:00 +0000	[thread overview]
Message-ID: <200912071624.00559.paul@codesourcery.com> (raw)
In-Reply-To: <4B1D2462.3070000@codemonkey.ws>

> type *qemu_new(type, n_types);
> type *qemu_new0(type, n_types);
> 
> type *qemu_renew(type, mem, n_types);
> type *qemu_renew0(type, mem, n_types);

It always annoys me having to specify element count for things that aren't 
arrays.

I suggestion a single object allocation function, and an array allocation 
function that allows zero length arrays. Possibly also a must-not-be-zero 
array form if we think it's important.

Note that conversion to object/type based allocation is not always 
straightforward because inheritance means we don't have the final object type 
when doing the allocation.

Paul

  parent reply	other threads:[~2009-12-07 16:24 UTC|newest]

Thread overview: 119+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-30 13:55 [Qemu-devel] [PATCH] Permit zero-sized qemu_malloc() & friends Markus Armbruster
2009-11-30 14:01 ` Avi Kivity
2009-11-30 14:23 ` Kevin Wolf
2009-12-01 12:40 ` Gerd Hoffmann
2009-12-01 12:57   ` Paul Brook
2009-12-01 13:47     ` Glauber Costa
2009-12-01 14:08       ` Markus Armbruster
2009-12-01 14:47         ` Gerd Hoffmann
2009-12-01 14:21       ` Paul Brook
2009-12-01 12:57   ` Gerd Hoffmann
2009-12-01 13:11   ` Markus Armbruster
2009-12-01 14:34   ` Avi Kivity
2009-12-01 14:53     ` Gerd Hoffmann
2009-12-01 15:32 ` Eduardo Habkost
2009-12-04 16:49 ` Anthony Liguori
2009-12-05 13:55   ` Markus Armbruster
2009-12-05 14:14     ` Laurent Desnogues
2009-12-05 17:08     ` malc
2009-12-05 17:23       ` Avi Kivity
2009-12-05 18:30       ` Reimar Döffinger
2009-12-06  7:57       ` Markus Armbruster
2009-12-06  8:39         ` malc
2009-12-06  8:59           ` Markus Armbruster
2009-12-06 10:22             ` malc
2009-12-06 10:40               ` Avi Kivity
2009-12-06 11:53                 ` malc
2009-12-06 12:07                   ` Avi Kivity
2009-12-06 12:11                     ` malc
2009-12-06 12:23                       ` Avi Kivity
2009-12-06 11:10               ` Markus Armbruster
2009-12-06 12:00                 ` malc
2009-12-06 16:23                   ` [Qemu-devel] " Paolo Bonzini
2009-12-07  8:35                   ` [Qemu-devel] " Kevin Wolf
2009-12-07  9:42                   ` Markus Armbruster
2009-12-07 10:00                     ` malc
2009-12-07 10:17                       ` Kevin Wolf
2009-12-07 10:35                       ` Markus Armbruster
2009-12-06 11:35               ` [Qemu-devel] " Paolo Bonzini
2009-12-06 12:02                 ` malc
2009-12-06 16:23                   ` Paolo Bonzini
2009-12-06  9:02           ` [Qemu-devel] " Blue Swirl
2009-12-06 10:02             ` malc
2009-12-05 17:07   ` Avi Kivity
2009-12-05 17:27     ` Anthony Liguori
2009-12-05 17:40       ` Avi Kivity
2009-12-05 17:54         ` Anthony Liguori
2009-12-05 18:06           ` Avi Kivity
2009-12-05 20:58             ` Anthony Liguori
2009-12-05 22:26               ` Avi Kivity
2009-12-06  8:24                 ` Markus Armbruster
2009-12-06 18:36                 ` Jamie Lokier
2009-12-06  8:12       ` Markus Armbruster
2009-12-06 16:52         ` Ian Molton
2009-12-06 17:14           ` Avi Kivity
2009-12-06 17:45             ` malc
2009-12-06 18:02               ` Avi Kivity
2009-12-06 18:12                 ` malc
2009-12-06 18:19                   ` Avi Kivity
2009-12-06 18:41                     ` malc
2009-12-07  9:47                       ` Avi Kivity
2009-12-07 10:20                         ` Kevin Wolf
2009-12-06 22:38                 ` Ian Molton
2009-12-07  2:51                   ` Jamie Lokier
2009-12-07  9:39                     ` Ian Molton
2009-12-07  9:55                       ` [Qemu-devel] " Paolo Bonzini
2009-12-07 13:28                         ` Avi Kivity
2009-12-07  9:45           ` [Qemu-devel] " Markus Armbruster
2009-12-07  8:48       ` Kevin Wolf
2009-12-07 17:32       ` Glauber Costa
2009-12-05 17:28     ` Blue Swirl
2009-12-05 17:44       ` Avi Kivity
2009-12-05 18:16         ` Laurent Desnogues
2009-12-05 23:08         ` Ian Molton
2009-12-05 23:11           ` Avi Kivity
2009-12-05 23:25             ` Ian Molton
2009-12-06 13:07               ` Avi Kivity
2009-12-06 16:58                 ` Ian Molton
2009-12-06 17:07                   ` Avi Kivity
2009-12-06 17:47                     ` malc
2009-12-06 17:59                       ` Avi Kivity
2009-12-06 18:09                         ` malc
2009-12-06 18:16                           ` Avi Kivity
2009-12-06 18:21                             ` malc
2009-12-06 22:40                           ` Ian Molton
2009-12-06 18:31               ` Jamie Lokier
2009-12-07  9:56                 ` Markus Armbruster
2009-12-07 11:30 ` malc
2009-12-07 14:45   ` Markus Armbruster
2009-12-07 16:55     ` malc
2009-12-08  8:21       ` Markus Armbruster
2009-12-08 10:22         ` malc
2009-12-07 15:50 ` Anthony Liguori
2009-12-07 16:00   ` Avi Kivity
2009-12-07 16:06     ` Anthony Liguori
2009-12-07 16:11       ` Avi Kivity
2009-12-07 16:20         ` Anthony Liguori
2009-12-07 16:26           ` Avi Kivity
2009-12-07 16:32             ` Anthony Liguori
2009-12-07 16:37               ` Avi Kivity
2009-12-07 16:59                 ` Anthony Liguori
2009-12-07 17:07                   ` Avi Kivity
2009-12-07 17:09                     ` Anthony Liguori
2009-12-07 17:13                       ` Avi Kivity
2009-12-07 17:17                         ` Anthony Liguori
2009-12-07 17:19                           ` Avi Kivity
2009-12-07 17:40                             ` Anthony Liguori
2009-12-07 18:25                               ` Avi Kivity
2009-12-07 18:59                                 ` Anthony Liguori
2009-12-07 19:01                                   ` Avi Kivity
2009-12-07 19:07                                     ` Anthony Liguori
2009-12-07 16:24   ` Paul Brook [this message]
2009-12-07 16:27     ` Anthony Liguori
2009-12-07 16:28     ` Avi Kivity
2009-12-07 16:57   ` malc
2009-12-07 17:01     ` Anthony Liguori
2009-12-07 17:09       ` malc
2009-12-08  9:02         ` Kevin Wolf
2009-12-07 18:12   ` Blue Swirl
2009-12-08  8:30   ` Markus Armbruster

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200912071624.00559.paul@codesourcery.com \
    --to=paul@codesourcery.com \
    --cc=anthony@codemonkey.ws \
    --cc=armbru@redhat.com \
    --cc=avi@redhat.com \
    --cc=kwolf@redhat.com \
    --cc=qemu-devel@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.