;;; gnus-demon.el --- daemonic Gnus behaviour
-;; Copyright (C) 1995,96,97 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
;;; Code:
+(eval-when-compile (require 'cl))
+
(require 'gnus)
(require 'gnus-int)
(require 'nnheader)
+(require 'nntp)
+(require 'nnmail)
+(require 'gnus-util)
(eval-and-compile
(if (string-match "XEmacs" (emacs-version))
(require 'itimer)
(defun gnus-demon-remove-handler (function &optional no-init)
"Remove the handler FUNCTION from the list of handlers."
- (setq gnus-demon-handlers
- (delq (assq function gnus-demon-handlers)
- gnus-demon-handlers))
+ (gnus-pull function gnus-demon-handlers)
(unless no-init
(gnus-demon-init)))
"Initialize the Gnus daemon."
(interactive)
(gnus-demon-cancel)
- (if (null gnus-demon-handlers)
- () ; Nothing to do.
- ;; Set up timer.
+ (when gnus-demon-handlers
+ ;; Set up the timer.
(setq gnus-demon-timer
(nnheader-run-at-time
gnus-demon-timestep gnus-demon-timestep 'gnus-demon))
(when gnus-demon-timer
(nnheader-cancel-timer gnus-demon-timer))
(setq gnus-demon-timer nil
- gnus-use-demon nil)
+ gnus-use-demon nil
+ gnus-demon-idle-has-been-called nil)
(condition-case ()
(nnheader-cancel-function-timers 'gnus-demon)
(error t)))
"Find out how many seconds to TIME, which is on the form \"17:43\"."
(if (not (stringp time))
time
- (let* ((date (current-time-string))
- (dv (timezone-parse-date date))
- (tdate (timezone-make-arpa-date
- (string-to-number (aref dv 0))
- (string-to-number (aref dv 1))
- (string-to-number (aref dv 2)) time
- (or (aref dv 4) "UT")))
- (nseconds (gnus-time-minus
- (gnus-encode-date tdate) (gnus-encode-date date))))
- (round
- (/ (+ (if (< (car nseconds) 0)
- 86400 0)
- (* 65536 (car nseconds))
- (nth 1 nseconds))
- gnus-demon-timestep)))))
+ (let* ((now (current-time))
+ ;; obtain NOW as discrete components -- make a vector for speed
+ (nowParts (apply 'vector (decode-time now)))
+ ;; obtain THEN as discrete components
+ (thenParts (timezone-parse-time time))
+ (thenHour (string-to-int (elt thenParts 0)))
+ (thenMin (string-to-int (elt thenParts 1)))
+ ;; convert time as elements into number of seconds since EPOCH.
+ (then (encode-time 0
+ thenMin
+ thenHour
+ ;; If THEN is earlier than NOW, make it
+ ;; same time tomorrow. Doc for encode-time
+ ;; says that this is OK.
+ (+ (elt nowParts 3)
+ (if (or (< thenHour (elt nowParts 2))
+ (and (= thenHour (elt nowParts 2))
+ (<= thenMin (elt nowParts 1))))
+ 1 0))
+ (elt nowParts 4)
+ (elt nowParts 5)
+ (elt nowParts 6)
+ (elt nowParts 7)
+ (elt nowParts 8)))
+ ;; calculate number of seconds between NOW and THEN
+ (diff (+ (* 65536 (- (car then) (car now)))
+ (- (cadr then) (cadr now)))))
+ ;; return number of timesteps in the number of seconds
+ (round (/ diff gnus-demon-timestep)))))
(defun gnus-demon ()
"The Gnus daemon that takes care of running all Gnus handlers."
(t (< 0 gnus-demon-idle-time)))) ; Or just need to be idle.
;; So we call the handler.
(progn
- (funcall (car handler))
+ (ignore-errors (funcall (car handler)))
;; And reset the timer.
(setcar (nthcdr 1 handler)
(gnus-demon-time-to-step
((null (setq idle (nth 2 handler)))
;; We do nothing.
)
- ((not (numberp idle))
+ ((and (not (numberp idle))
+ (gnus-demon-is-idle-p))
;; We want to call this handler each and every time that
;; Emacs is idle.
- (funcall (car handler)))
+ (ignore-errors (funcall (car handler))))
(t
;; We want to call this handler only if Emacs has been idle
;; for a specified number of timesteps.
(and (not (memq (car handler) gnus-demon-idle-has-been-called))
(< idle gnus-demon-idle-time)
+ (gnus-demon-is-idle-p)
(progn
- (funcall (car handler))
+ (ignore-errors (funcall (car handler)))
;; Make sure the handler won't be called once more in
;; this idle-cycle.
(push (car handler) gnus-demon-idle-has-been-called)))))))))
(defun gnus-demon-add-nocem ()
"Add daemonic NoCeM handling to Gnus."
- (gnus-demon-add-handler 'gnus-demon-scan-nocem 60 t))
+ (gnus-demon-add-handler 'gnus-demon-scan-nocem 60 30))
(defun gnus-demon-scan-nocem ()
"Scan NoCeM groups for NoCeM messages."
(save-window-excursion
(gnus-close-backends)))
+(defun gnus-demon-add-nntp-close-connection ()
+ "Add daemonic nntp server disconnection to Gnus.
+If no commands have gone out via nntp during the last five
+minutes, the connection is closed."
+ (gnus-demon-add-handler 'gnus-demon-close-connections 5 nil))
+
+(defun gnus-demon-nntp-close-connection ()
+ (save-window-excursion
+ (when (nnmail-time-less '(0 300)
+ (nnmail-time-since nntp-last-command-time))
+ (nntp-close-server))))
+
(defun gnus-demon-add-scanmail ()
"Add daemonic scanning of mail from the mail backends."
(gnus-demon-add-handler 'gnus-demon-scan-mail 120 60))
(save-window-excursion
(let ((servers gnus-opened-servers)
server)
+ (gnus-clear-inboxes-moved)
(while (setq server (car (pop servers)))
(and (gnus-check-backend-function 'request-scan (car server))
(or (gnus-server-opened server)
(gnus-demon-add-handler 'gnus-demon-scan-news 120 60))
(defun gnus-demon-scan-news ()
- (save-window-excursion
- (when (gnus-alive-p)
- (save-excursion
- (set-buffer gnus-group-buffer)
- (gnus-group-get-new-news)))))
+ (let ((win (current-window-configuration)))
+ (unwind-protect
+ (save-window-excursion
+ (save-excursion
+ (when (gnus-alive-p)
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (gnus-group-get-new-news)))))
+ (set-window-configuration win))))
(defun gnus-demon-add-scan-timestamps ()
"Add daemonic updating of timestamps in empty newgroups."
projects / gnus / blobdiff