From: Chong Yidong <cyd@stupidchicken.com>
Cc: emacs-pretest-bug@gnu.org
Subject: Re: gnus crashes on threads deeper than 333 articles
Date: Tue, 05 Dec 2006 11:59:50 -0500 [thread overview]
Message-ID: <87u00ap9bt.fsf@stupidchicken.com> (raw)
In-Reply-To: <871wnel1yh.fsf@stupidchicken.com>
> How about this patch? Instead of adding a new defcustom, we use the
> safe recursive sorter by default, and try again with the non-recursive
> sorter if an error is signalled. The patch also regenerates
> gnus-thread-indent-array if it becomes too small to handle a thread.
Oops, a couple typos in that patch. I meant this:
*** gnus-sum.el.~1.93.~ 2006-11-24 14:49:06.000000000 -0500
--- gnus-sum.el 2006-12-05 11:58:31.000000000 -0500
***************
*** 3343,3358 ****
t
(not (cdr (gnus-data-find-list article)))))
! (defun gnus-make-thread-indent-array ()
! (let ((n 200))
! (unless (and gnus-thread-indent-array
! (= gnus-thread-indent-level gnus-thread-indent-array-level))
! (setq gnus-thread-indent-array (make-vector 201 "")
! gnus-thread-indent-array-level gnus-thread-indent-level)
! (while (>= n 0)
! (aset gnus-thread-indent-array n
! (make-string (* n gnus-thread-indent-level) ? ))
! (setq n (1- n))))))
(defun gnus-update-summary-mark-positions ()
"Compute where the summary marks are to go."
--- 3343,3358 ----
t
(not (cdr (gnus-data-find-list article)))))
! (defun gnus-make-thread-indent-array (&optional n)
! (if (null n) (setq n 200))
! (unless (and gnus-thread-indent-array
! (= gnus-thread-indent-level gnus-thread-indent-array-level))
! (setq gnus-thread-indent-array (make-vector 201 "")
! gnus-thread-indent-array-level gnus-thread-indent-level)
! (while (>= n 0)
! (aset gnus-thread-indent-array n
! (make-string (* n gnus-thread-indent-level) ? ))
! (setq n (1- n)))))
(defun gnus-update-summary-mark-positions ()
"Compute where the summary marks are to go."
***************
*** 3451,3456 ****
--- 3451,3459 ----
gnus-tmp-expirable gnus-tmp-subject-or-nil
&optional gnus-tmp-dummy gnus-tmp-score
gnus-tmp-process)
+ (if (> gnus-tmp-level (length gnus-thread-indent-array))
+ (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
+ gnus-tmp-level)))
(let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
(gnus-tmp-lines (mail-header-lines gnus-tmp-header))
(gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
***************
*** 4549,4571 ****
(1+ (gnus-point-at-eol))
(gnus-delete-line)))))))
! (defun gnus-sort-threads-1 (threads func)
(sort (mapcar (lambda (thread)
(cons (car thread)
(and (cdr thread)
! (gnus-sort-threads-1 (cdr thread) func))))
threads) func))
(defun gnus-sort-threads (threads)
"Sort THREADS."
(if (not gnus-thread-sort-functions)
threads
(gnus-message 8 "Sorting threads...")
! (let ((max-lisp-eval-depth 5000))
! (prog1 (gnus-sort-threads-1
! threads
! (gnus-make-sort-function gnus-thread-sort-functions))
! (gnus-message 8 "Sorting threads...done")))))
(defun gnus-sort-articles (articles)
"Sort ARTICLES."
--- 4552,4597 ----
(1+ (gnus-point-at-eol))
(gnus-delete-line)))))))
! (defun gnus-sort-threads-recursive (threads func)
(sort (mapcar (lambda (thread)
(cons (car thread)
(and (cdr thread)
! (gnus-sort-threads-recursive (cdr thread) func))))
threads) func))
+ (defun gnus-sort-threads-loop (threads func)
+ (let* ((superthread (cons nil threads))
+ (stack (list (cons superthread threads)))
+ remaining-threads thread)
+ (while stack
+ (setq remaining-threads (cdr (car stack)))
+ (if remaining-threads
+ (progn (setq thread (car remaining-threads))
+ (setcdr (car stack) (cdr remaining-threads))
+ (if (cdr thread)
+ (push (cons thread (cdr thread)) stack)))
+ (setq thread (caar stack))
+ (setcdr thread (sort (cdr thread) func))
+ (pop stack)))
+ (cdr superthread)))
+
(defun gnus-sort-threads (threads)
"Sort THREADS."
(if (not gnus-thread-sort-functions)
threads
(gnus-message 8 "Sorting threads...")
! (prog1
! (condition-case nil
! (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
! (gnus-sort-threads-recursive
! threads (gnus-make-sort-function gnus-thread-sort-functions)))
! ;; Even after binding max-lisp-eval-depth, the recursive
! ;; sorter might fail for very long threads. In that case,
! ;; fall back on a (less well-tested) non-recursive sorter.
! (error (gnus-sort-threads-loop
! threads (gnus-make-sort-function
! gnus-thread-sort-functions))))
! (gnus-message 8 "Sorting threads...done"))))
(defun gnus-sort-articles (articles)
"Sort ARTICLES."
***************
*** 4990,4995 ****
--- 5016,5025 ----
gnus-tmp-closing-bracket ?\>)
(setq gnus-tmp-opening-bracket ?\[
gnus-tmp-closing-bracket ?\]))
+ (if (> gnus-tmp-level (length gnus-thread-indent-array))
+ (gnus-make-thread-indent-array
+ (max (* 2 (length gnus-thread-indent-array))
+ gnus-tmp-level)))
(setq
gnus-tmp-indentation
(aref gnus-thread-indent-array gnus-tmp-level)
***************
*** 8165,8171 ****
;; will really go down to a leaf article first, before slowly
;; working its way up towards the root.
(when thread
! (let* ((max-lisp-eval-depth 5000)
(children
(if (cdr thread)
(apply '+ (mapcar 'gnus-summary-limit-children
--- 8195,8201 ----
;; will really go down to a leaf article first, before slowly
;; working its way up towards the root.
(when thread
! (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
(children
(if (cdr thread)
(apply '+ (mapcar 'gnus-summary-limit-children
next prev parent reply other threads:[~2006-12-05 16:59 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E1Gpndn-0003Wt-Dq@chrislap.local>
2006-12-03 20:36 ` Chong Yidong
2006-12-04 14:21 ` Richard Stallman
2006-12-04 16:37 ` Chris Moore
2006-12-04 16:59 ` Chris Moore
2006-12-04 18:35 ` Chris Moore
2006-12-04 18:58 ` Reiner Steib
2006-12-04 19:51 ` Chris Moore
2006-12-04 16:05 ` Reiner Steib
2006-12-04 19:05 ` Chong Yidong
2006-12-05 5:09 ` Richard Stallman
2006-12-05 9:29 ` Reiner Steib
2006-12-06 0:47 ` Richard Stallman
2006-12-05 16:52 ` Chong Yidong
2006-12-05 16:59 ` Chong Yidong [this message]
2006-12-05 18:59 ` Chris Moore
2006-12-07 16:29 ` Chong Yidong
2006-12-05 17:02 ` Chris Moore
2006-12-05 17:05 ` Chong Yidong
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