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From: Paul Eggert <eggert@cs.ucla.edu>
To: Philipp Stephani <p.stephani2@gmail.com>, Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: JSON/YAML/TOML/etc. parsing performance
Date: Sun, 8 Oct 2017 23:19:28 -0700	[thread overview]
Message-ID: <903b4aaa-36e6-9985-7313-177d9d34b7ec@cs.ucla.edu> (raw)
In-Reply-To: <CAArVCkTDM-sV7JpzKyOPBjv025Dmw5s-WgA_7_njVetTjNcQ1g@mail.gmail.com>

Philipp Stephani wrote:
> I don't think Jansson can use xmalloc because xmalloc can exit nonlocally,
> which is not expected by a third-party library such as Jansson. It could
> use a suitable wrapper of lmalloc, though.

That would be overkill, as lmalloc arranges for Lisp alignment, which Jansson 
does not need. We could define new functions (smalloc and srealloc, say), that 
act like malloc and realloc except they return NULL for requests larger than 
PTRDIFF_MAX. Right now, I expect only the JSON code needs this sort of thing so 
we could put the new functions in json.c. If other code needs it later we could 
move these new functions to alloc.c.



  reply	other threads:[~2017-10-09  6:19 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-16 15:54 JSON/YAML/TOML/etc. parsing performance Ted Zlatanov
2017-09-16 16:02 ` Mark Oteiza
2017-09-17  0:02   ` Richard Stallman
2017-09-17  3:13     ` Mark Oteiza
2017-09-18  0:00       ` Richard Stallman
2017-09-17  0:02 ` Richard Stallman
2017-09-18 13:46   ` Ted Zlatanov
2017-09-17 18:46 ` Philipp Stephani
2017-09-17 19:05   ` Eli Zaretskii
2017-09-17 20:27     ` Philipp Stephani
2017-09-17 22:41       ` Mark Oteiza
2017-09-18 13:53       ` Ted Zlatanov
2017-09-17 21:17   ` Speed of Elisp (was: JSON/YAML/TOML/etc. parsing performance) Stefan Monnier
2017-09-18 13:26   ` JSON/YAML/TOML/etc. parsing performance Philipp Stephani
2017-09-18 13:58     ` Mark Oteiza
2017-09-18 14:14       ` Philipp Stephani
2017-09-18 14:28         ` Mark Oteiza
2017-09-18 14:36           ` Philipp Stephani
2017-09-18 15:02             ` Eli Zaretskii
2017-09-18 16:14               ` Philipp Stephani
2017-09-18 17:33                 ` Eli Zaretskii
2017-09-18 19:57                 ` Thien-Thi Nguyen
2017-09-18 14:57     ` Eli Zaretskii
2017-09-18 15:07       ` Mark Oteiza
2017-09-18 15:51         ` Eli Zaretskii
2017-09-18 16:22           ` Philipp Stephani
2017-09-18 18:08             ` Eli Zaretskii
2017-09-19 19:32               ` Richard Stallman
2017-09-18 17:26           ` Glenn Morris
2017-09-18 18:16             ` Eli Zaretskii
2017-09-18 16:08       ` Philipp Stephani
2017-09-19  8:18     ` Philipp Stephani
2017-09-19 19:09       ` Eli Zaretskii
2017-09-28 21:19         ` Philipp Stephani
2017-09-28 21:27           ` Stefan Monnier
2017-09-29 19:55           ` Eli Zaretskii
2017-09-30 22:02             ` Philipp Stephani
2017-10-01 18:06               ` Eli Zaretskii
2017-10-03 12:26                 ` Philipp Stephani
2017-10-03 15:31                   ` Eli Zaretskii
2017-10-03 15:52                     ` Philipp Stephani
2017-10-03 16:26                       ` Eli Zaretskii
2017-10-03 17:10                         ` Eli Zaretskii
2017-10-03 18:37                           ` Philipp Stephani
2017-10-03 20:52                   ` Paul Eggert
2017-10-04  5:33                     ` Eli Zaretskii
2017-10-04  6:41                       ` Paul Eggert
2017-10-04  8:03                         ` Eli Zaretskii
2017-10-04 17:51                           ` Paul Eggert
2017-10-04 19:38                             ` Eli Zaretskii
2017-10-04 21:24                               ` Paul Eggert
2017-10-05  1:48                                 ` Paul Eggert
2017-10-05  7:14                                   ` Eli Zaretskii
2017-10-08 22:52                                   ` Philipp Stephani
2017-10-09  5:54                                     ` Paul Eggert
2017-10-29 20:48                                       ` Philipp Stephani
2017-10-09  6:38                                     ` Eli Zaretskii
2017-10-05  7:12                                 ` Eli Zaretskii
2017-10-06  1:58                                   ` Paul Eggert
2017-10-06  7:40                                     ` Eli Zaretskii
2017-10-06 19:36                                       ` Paul Eggert
2017-10-06 21:03                                         ` Eli Zaretskii
2017-10-08 23:09                                     ` Philipp Stephani
2017-10-09  6:19                                       ` Paul Eggert [this message]
2017-10-29 20:48                                         ` Philipp Stephani
2017-10-29 22:49                                           ` Philipp Stephani
2017-12-09 23:05                                             ` Philipp Stephani
2017-12-10  7:08                                               ` Eli Zaretskii
2017-12-10 13:26                                                 ` Philipp Stephani
2017-12-10 13:32                                                   ` Ted Zlatanov
2017-10-08 23:04                                   ` Philipp Stephani
2017-10-09  6:47                                     ` Eli Zaretskii
2017-10-08 17:58                     ` Philipp Stephani
2017-10-08 18:42                       ` Eli Zaretskii
2017-10-08 23:14                         ` Philipp Stephani
2017-10-09  6:53                           ` Eli Zaretskii
2017-10-29 20:41                             ` Philipp Stephani
2017-10-09  6:22                       ` Paul Eggert
2017-10-01 18:38               ` Eli Zaretskii
2017-10-03 12:12                 ` Philipp Stephani
2017-10-03 14:54                   ` Eli Zaretskii

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