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* bug#58158: 29.0.50; [overlay] Interval tree iteration considered harmful
@ 2022-09-29  5:29 Gerd Möllmann
  2022-09-29  6:28 ` Eli Zaretskii
                   ` (2 more replies)
  0 siblings, 3 replies; 68+ messages in thread
From: Gerd Möllmann @ 2022-09-29  5:29 UTC (permalink / raw)
  To: 58158

In its current form, interval tree iteration works like this:

1. Call begin_iteration(T) to iterate over tree T
2. do stuff
3. Call end_iteration(T)

with the following rules:

- Begin_iteration and end_iteration must be paired.

- There can be only one iteration per tree at a time.  Nested iteration
  over the same tree is not supported (abort).

- No GC may happen in step 2.  This is because mark_buffer iterates over
  buffer overlays.

I think this is an exceedingly dangerous design.





^ permalink raw reply	[flat|nested] 68+ messages in thread

end of thread, other threads:[~2023-10-06 13:14 UTC | newest]

Thread overview: 68+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2022-09-29  5:29 bug#58158: 29.0.50; [overlay] Interval tree iteration considered harmful Gerd Möllmann
2022-09-29  6:28 ` Eli Zaretskii
2022-09-29  7:03   ` Gerd Möllmann
2022-09-29  8:08     ` Eli Zaretskii
2022-09-29  9:09       ` Gerd Möllmann
2022-09-29  9:37         ` Eli Zaretskii
2022-09-29 10:05           ` Gerd Möllmann
2022-09-29 10:43             ` Eli Zaretskii
2022-09-29 11:33               ` Gerd Möllmann
2022-09-29 13:10               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-29 13:23                 ` Eli Zaretskii
2022-09-29 16:48                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-29 13:40                 ` Eli Zaretskii
2022-09-29 14:15                 ` Gerd Möllmann
2022-09-29 14:37                   ` Gerd Möllmann
2022-09-29 22:09                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-30  5:28                       ` Gerd Möllmann
2022-09-30  6:11                         ` Eli Zaretskii
2022-09-30 11:31                           ` Gerd Möllmann
2022-09-30 18:29                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-02  8:06                               ` Gerd Möllmann
2022-10-06 22:36                           ` Dmitry Gutov
2022-10-07 19:47                             ` Eli Zaretskii
2022-10-08 18:50                               ` Dmitry Gutov
2022-10-10  8:10                                 ` Eli Zaretskii
2022-10-11  2:12                                   ` Dmitry Gutov
2022-10-11  6:37                                     ` Eli Zaretskii
2022-10-11 11:36                                       ` xref-query-replace-in-results error message after xref-find-definitions, was: " Dmitry Gutov
2022-10-11 11:51                                         ` Eli Zaretskii
2022-10-11 12:10                                           ` Dmitry Gutov
2022-10-11 12:17                                             ` Eli Zaretskii
2022-10-11 12:44                                               ` Dmitry Gutov
2022-10-11 12:55                                                 ` Eli Zaretskii
2022-10-11 14:55                                                   ` Dmitry Gutov
2022-10-11 16:01                                                     ` Eli Zaretskii
2022-10-11 16:41                                                       ` Dmitry Gutov
2022-10-11 16:50                                                         ` Eli Zaretskii
2022-10-11 20:31                                                           ` Dmitry Gutov
2022-10-12  5:17                                                             ` Eli Zaretskii
2022-10-12 10:06                                                               ` John Yates
2022-10-12 10:17                                                                 ` Eli Zaretskii
     [not found]                                                                   ` <CAJnXXogKsM=gMTFi2NivDMHW4A3EBtBtsNDBV3o5vcu2xXfuvw@mail.gmail.com>
2022-10-12 13:21                                                                     ` Eli Zaretskii
2022-10-12 16:12                                                                       ` John Yates
2022-10-12 13:47                                                               ` Dmitry Gutov
2022-10-12 14:05                                                                 ` Eli Zaretskii
2022-10-11 14:04                                           ` Stefan Monnier
2022-10-11 14:07                                             ` Stefan Monnier
2022-10-11 15:07                                               ` Dmitry Gutov
2022-10-11 15:37                                             ` Eli Zaretskii
2022-09-30 13:25                         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-30 14:08                           ` Gerd Möllmann
2022-09-30 15:25                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-30 16:04                               ` Eli Zaretskii
2022-09-30 17:11                                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-01  5:06                               ` Gerd Möllmann
2022-10-01 13:54                                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-02  8:22                                   ` Gerd Möllmann
2022-10-02 16:32                                     ` Andreas Politz
2022-10-03  4:35                                       ` Gerd Möllmann
2022-10-04 10:50                                         ` Andreas Politz
2022-10-01  7:25                               ` Gerd Möllmann
2022-10-01 10:55                                 ` Gerd Möllmann
2022-10-01 14:01                                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-09-29 16:40                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-01  1:57         ` Richard Stallman
2022-10-01  7:00           ` Eli Zaretskii
2022-10-06 22:26 ` Matt Armstrong
2023-10-06 13:14 ` Gerd Möllmann

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