From: Eli Zaretskii <eliz@gnu.org>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: lekktu@gmail.com, rms@gnu.org, 12450@debbugs.gnu.org
Subject: bug#12450: Remove configure's --without-sync-input option.
Date: Sun, 16 Sep 2012 11:24:02 +0300 [thread overview]
Message-ID: <838vcas7dp.fsf@gnu.org> (raw)
In-Reply-To: <50558B1D.3010304@cs.ucla.edu>
> Date: Sun, 16 Sep 2012 01:17:33 -0700
> From: Paul Eggert <eggert@cs.ucla.edu>
> CC: rms@gnu.org, 12450@debbugs.gnu.org, lekktu@gmail.com
>
> On 09/16/2012 01:05 AM, Eli Zaretskii wrote:
>
> >> No, it is not used indirectly. emacs_blocked_malloc is the only
> >> function that uses malloc_hysteresis to set __malloc_extra_blocks.
> >> And emacs_blocked_malloc is invoked only in the non-SYNC_INPUT code.
> >
> > Which means that gmalloc.c, and any memory allocation based on that,
> > will work differently with that function removed
>
> No, because the function is never invoked, if we assume SYNC_INPUT.
Yes, it _is_ invoked on platforms that don't use SYNC_INPUT now.
And in addition, we cannot be sure whether its non-invocation on
SYNC_INPUT platforms isn't a simple omission, because most Posix
platforms use neither gmalloc nor ralloc.c. So, when SYNC_INPUT was
coded, it's quite possible that assignment to __malloc_extra_blocks
was omitted by mistake that never got revealed.
next prev parent reply other threads:[~2012-09-16 8:24 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-15 7:54 bug#12450: Remove configure's --without-sync-input option Paul Eggert
2012-09-15 9:32 ` Eli Zaretskii
2012-09-15 10:14 ` Paul Eggert
2012-09-15 11:03 ` Eli Zaretskii
2012-09-15 19:59 ` Paul Eggert
2012-09-15 20:15 ` Eli Zaretskii
2012-09-15 20:31 ` Paul Eggert
2012-09-16 6:33 ` Eli Zaretskii
2012-09-16 7:47 ` Paul Eggert
2012-09-16 8:05 ` Eli Zaretskii
2012-09-16 8:17 ` Paul Eggert
2012-09-16 8:21 ` Eli Zaretskii
2012-09-16 8:24 ` Eli Zaretskii [this message]
2012-09-16 8:34 ` Paul Eggert
2012-09-16 8:53 ` Eli Zaretskii
2012-09-15 21:12 ` Stefan Monnier
2012-09-16 5:55 ` Eli Zaretskii
2012-09-16 14:58 ` Stefan Monnier
2012-09-16 15:45 ` Eli Zaretskii
2012-09-16 16:30 ` Paul Eggert
2012-09-16 18:40 ` Eli Zaretskii
2012-09-16 19:55 ` Jan Djärv
2012-09-16 18:37 ` Stefan Monnier
2012-09-16 9:33 ` Daniel Colascione
2012-09-16 10:43 ` Eli Zaretskii
2012-09-16 15:10 ` Stefan Monnier
2012-09-16 15:40 ` Eli Zaretskii
2012-09-15 22:18 ` Richard Stallman
2012-09-16 3:15 ` Paul Eggert
2012-09-16 6:10 ` Eli Zaretskii
2012-09-16 8:23 ` Paul Eggert
2012-09-16 8:32 ` Eli Zaretskii
2012-09-16 21:48 ` Paul Eggert
2012-09-17 7:42 ` Eli Zaretskii
2012-09-21 20:50 ` Paul Eggert
2012-09-22 9:03 ` Eli Zaretskii
2012-09-22 9:34 ` Paul Eggert
2012-09-22 9:50 ` Eli Zaretskii
2012-09-22 10:01 ` Paul Eggert
2012-09-16 9:52 ` Daniel Colascione
2012-09-16 10:44 ` Eli Zaretskii
2012-09-16 10:56 ` Daniel Colascione
2012-09-17 7:41 ` Eli Zaretskii
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