zsh-workers
 help / color / mirror / code / Atom feed
From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Re: [PATCH] Optimization of getarrvalue()
Date: Tue, 8 Nov 2016 13:58:20 -0800	[thread overview]
Message-ID: <161108135820.ZM11151@torch.brasslantern.com> (raw)
In-Reply-To: <1478635899.1897979.781551353.05792438@webmail.messagingengine.com>

On Nov 8, 12:11pm, Sebastian Gniazdowski wrote:
}
} More, I suspect a memory leak in following code that has been replaced:
} 
}     if (v->end <= v->start)
}         s[0] = NULL;
}     else if (arrlen_ge(s, v->end - v->start))
}         s[v->end - v->start] = NULL;
} 
} That code adapts array according to end index – however it seems that
} strings after the NULL are then unreachable to freearray() ?

You perhaps haven't noticed that arrdup() uses zhalloc() and dupstring()?
Everything is on the heap and is freed by freeheap() or popheap(), never
by freearray().

} Interesting that some tests fail (e.g. ./Y03arguments.ztst) if I here
} duplicate nular instead of doing:

I'm not sure I understand from this exactly what you're describing, but
it seems likely to have something to do with confusing zsh heap memory
with directly-malloc'd memory.


  reply	other threads:[~2016-11-08 22:27 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20161108201233epcas1p1e2900e2d67af8b8558ebdb70eb7ad480@epcas1p1.samsung.com>
2016-11-08 20:11 ` Sebastian Gniazdowski
2016-11-08 21:58   ` Bart Schaefer [this message]
2016-11-09  7:11   ` Bart Schaefer
2016-11-09 11:42   ` Peter Stephenson
2016-11-09 16:03     ` Bart Schaefer
2016-11-14 12:32       ` Jun T.
2016-11-14 13:15         ` Jun T.
2016-11-14 13:57         ` Peter Stephenson
2016-11-14 15:35           ` Jun T.
2016-11-14 17:10           ` Bart Schaefer
2016-11-16  7:55             ` Sebastian Gniazdowski
2016-11-15 12:28         ` Peter Stephenson
2016-11-15 19:57         ` Peter Stephenson
2016-11-15 21:11           ` Bart Schaefer
2016-11-16 14:06           ` Jun T.
2016-11-16 16:14             ` Jun T.
2016-11-16 18:50             ` Bart Schaefer
2016-11-21 12:30               ` Jun T.
2016-11-24  0:55                 ` Bart Schaefer
2016-11-24 11:49                   ` Jun T.
2016-11-29  6:11                     ` Array slices that don't exist [was Optimization of getarrvalue()] Bart Schaefer
2016-11-29  9:34                       ` Peter Stephenson

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=161108135820.ZM11151@torch.brasslantern.com \
    --to=schaefer@brasslantern.com \
    --cc=zsh-workers@zsh.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.
Code repositories for project(s) associated with this public inbox

	https://git.vuxu.org/mirror/zsh/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).