X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=lisp%2Fgnus-cache.el;h=207f096ea6ec37fb28cae31f3bba3371b01e77dc;hb=9b741e050b400987d68ff761c6cc3276c932839c;hp=53b4318795f86f8c238d7c312de34351f19fbc32;hpb=295ca54a077ad7c5dd463de7005652166d31e60d;p=elisp%2Fgnus.git- diff --git a/lisp/gnus-cache.el b/lisp/gnus-cache.el index 53b4318..207f096 100644 --- a/lisp/gnus-cache.el +++ b/lisp/gnus-cache.el @@ -1,5 +1,5 @@ ;;; gnus-cache.el --- cache interface for Gnus -;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 +;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 ;; Free Software Foundation, Inc. ;; Author: Lars Magne Ingebrigtsen @@ -164,11 +164,7 @@ it's not cached." (when (and number (> number 0) ; Reffed article. (or force - (and (or (not gnus-cacheable-groups) - (string-match gnus-cacheable-groups group)) - (or (not gnus-uncacheable-groups) - (not (string-match - gnus-uncacheable-groups group))) + (and (gnus-cache-fully-p group) (gnus-cache-member-of-class gnus-cache-enter-articles ticked dormant unread))) (not (file-exists-p (setq file (gnus-cache-file-name @@ -213,8 +209,9 @@ it's not cached." (nnheader-insert-nov headers) ;; Update the active info. (set-buffer gnus-summary-buffer) - (gnus-cache-update-active group number) - (push article gnus-newsgroup-cached) + (gnus-cache-possibly-update-active group (cons number number)) + (setq gnus-newsgroup-cached + (gnus-add-to-sorted-list gnus-newsgroup-cached article)) (gnus-summary-update-secondary-mark article)) t)))))) @@ -239,7 +236,7 @@ it's not cached." (defun gnus-cache-possibly-remove-articles-1 () "Possibly remove some of the removable articles." - (unless (eq gnus-use-cache 'passive) + (when (gnus-cache-fully-p gnus-newsgroup-name) (let ((articles gnus-cache-removable-articles) (cache-articles gnus-newsgroup-cached) article) @@ -287,9 +284,7 @@ it's not cached." ;; the normal way. (let ((gnus-use-cache nil)) (gnus-retrieve-headers articles group fetch-old)) - (let ((uncached-articles (gnus-sorted-intersection - (gnus-sorted-complement articles cached) - articles)) + (let ((uncached-articles (gnus-sorted-difference articles cached)) (cache-file (gnus-cache-file-name group ".overview")) type) ;; We first retrieve all the headers that we don't have in @@ -347,7 +342,7 @@ Returns the list of articles entered." (gnus-summary-position-point) (nreverse out))) -(defun gnus-cache-remove-article (n) +(defun gnus-cache-remove-article (&optional n) "Remove the next N articles from the cache. If not given a prefix, use the process marked articles instead. Returns the list of articles removed." @@ -372,15 +367,25 @@ Returns the list of articles removed." (defun gnus-summary-insert-cached-articles () "Insert all the articles cached for this group into the current buffer." (interactive) - (let ((cached (sort (copy-sequence gnus-newsgroup-cached) '>)) + (let ((cached gnus-newsgroup-cached) (gnus-verbose (max 6 gnus-verbose))) - (unless cached - (gnus-message 3 "No cached articles for this group")) - (while cached - (gnus-summary-goto-subject (pop cached) t)))) + (if (not cached) + (gnus-message 3 "No cached articles for this group") + (save-excursion + (while cached + (gnus-summary-goto-subject (pop cached) t))) + (gnus-summary-limit (append gnus-newsgroup-cached gnus-newsgroup-limit)) + (gnus-summary-position-point)))) -(defalias 'gnus-summary-limit-include-cached - 'gnus-summary-insert-cached-articles) +(defun gnus-summary-limit-include-cached () + "Limit the summary buffer to articles that are cached." + (interactive) + (let ((gnus-verbose (max 6 gnus-verbose))) + (if gnus-newsgroup-cached + (progn + (gnus-summary-limit gnus-newsgroup-cached) + (gnus-summary-position-point)) + (gnus-message 3 "No cached articles for this group")))) ;;; Internal functions. @@ -468,8 +473,10 @@ Returns the list of articles removed." (point-max) t)) (delete-region (progn (beginning-of-line) (point)) (progn (forward-line 1) (point))))) - (setq gnus-newsgroup-cached - (delq article gnus-newsgroup-cached)) + (unless (setq gnus-newsgroup-cached + (delq article gnus-newsgroup-cached)) + (gnus-sethash gnus-newsgroup-name nil gnus-cache-active-hashtb) + (setq gnus-cache-active-altered t)) (gnus-summary-update-secondary-mark article) t))) @@ -483,9 +490,13 @@ Returns the list of articles removed." (directory-files dir nil "^[0-9]+$" t)) '<)) ;; Update the cache active file, just to synch more. - (when articles - (gnus-cache-update-active group (car articles) t) - (gnus-cache-update-active group (car (last articles)))) + (if articles + (progn + (gnus-cache-update-active group (car articles) t) + (gnus-cache-update-active group (car (last articles)))) + (when (gnus-gethash group gnus-cache-active-hashtb) + (gnus-sethash group nil gnus-cache-active-hashtb) + (setq gnus-cache-active-altered t))) articles))) (defun gnus-cache-braid-nov (group cached &optional file) @@ -508,13 +519,13 @@ Returns the list of articles removed." (< (read (current-buffer)) (car cached))) (forward-line 1)) (beginning-of-line) - (save-excursion - (set-buffer cache-buf) - (if (search-forward (concat "\n" (int-to-string (car cached)) "\t") - nil t) - (setq beg (progn (beginning-of-line) (point)) - end (progn (end-of-line) (point))) - (setq beg nil))) + (set-buffer cache-buf) + (if (search-forward (concat "\n" (int-to-string (car cached)) "\t") + nil t) + (setq beg (progn (beginning-of-line) (point)) + end (progn (end-of-line) (point))) + (setq beg nil)) + (set-buffer nntp-server-buffer) (when beg (insert-buffer-substring cache-buf beg end) (insert "\n")) @@ -609,6 +620,24 @@ $ emacs -batch -l ~/.emacs -l gnus -f gnus-jog-cache" ;; Mark the active hashtb as unaltered. (setq gnus-cache-active-altered nil))) +(defun gnus-cache-possibly-update-active (group active) + "Update active info bounds of GROUP with ACTIVE if necessary. +The update is performed if ACTIVE contains a higher or lower bound +than the current." + (let ((lower t) (higher t)) + (if gnus-cache-active-hashtb + (let ((cache-active (gnus-gethash group gnus-cache-active-hashtb))) + (when cache-active + (unless (< (car active) (car cache-active)) + (setq lower nil)) + (unless (> (cdr active) (cdr cache-active)) + (setq higher nil)))) + (gnus-cache-read-active)) + (when lower + (gnus-cache-update-active group (car active) t)) + (when higher + (gnus-cache-update-active group (cdr active))))) + (defun gnus-cache-update-active (group number &optional low) "Update the upper bound of the active info of GROUP to NUMBER. If LOW, update the lower bound instead." @@ -683,6 +712,19 @@ If LOW, update the lower bound instead." (interactive "FMove the cache tree to: ") (rename-file gnus-cache-directory dir)) +(defun gnus-cache-fully-p (&optional group) + "Returns non-nil if the cache should be fully used. +If GROUP is non-nil, also cater to `gnus-cacheable-groups' and +`gnus-uncacheable-groups'." + (and gnus-use-cache + (not (eq gnus-use-cache 'passive)) + (if (null group) + t + (and (or (not gnus-cacheable-groups) + (string-match gnus-cacheable-groups group)) + (or (not gnus-uncacheable-groups) + (not (string-match gnus-uncacheable-groups group))))))) + (provide 'gnus-cache) ;;; gnus-cache.el ends here