- message-log-max)
- (with-local-quit
- (while (and buffers (not (input-pending-p)))
- (with-current-buffer (pop buffers)
- (when jit-lock-mode
- ;; This is funny. Calling sit-for with 3rd arg non-nil
- ;; so that it doesn't redisplay, internally calls
- ;; wait_reading_process_input also with a parameter
- ;; saying "don't redisplay." Since this function here
- ;; is called periodically, this effectively leads to
- ;; process output not being redisplayed at all because
- ;; redisplay_internal is never called. (That didn't
- ;; work in the old redisplay either.) So, we learn that
- ;; we mustn't call sit-for that way here. But then, we
- ;; have to be cautious not to call sit-for in a widened
- ;; buffer, since this could display hidden parts of that
- ;; buffer. This explains the seemingly weird use of
- ;; save-restriction/widen here.
-
- (with-temp-message (if jit-lock-stealth-verbose
- (concat "JIT stealth lock "
- (buffer-name)))
-
- ;; In the following code, the `sit-for' calls cause a
- ;; redisplay, so it's required that the
- ;; buffer-modified flag of a buffer that is displayed
- ;; has the right value---otherwise the mode line of
- ;; an unmodified buffer would show a `*'.
- (let (start
- (nice (or jit-lock-stealth-nice 0))
- (point (point-min)))
- (while (and (setq start
- (jit-lock-stealth-chunk-start point))
- ;; In case sit-for runs any timers,
- ;; give them the expected current buffer.
- (with-current-buffer outer-buffer
- (sit-for nice)))
-
- ;; fontify a block.
- (jit-lock-fontify-now start (+ start jit-lock-chunk-size))
- ;; If stealth jit-locking is done backwards, this leads to
- ;; excessive O(n^2) refontification. -stef
- ;; (when (>= jit-lock-context-unfontify-pos start)
- ;; (setq jit-lock-context-unfontify-pos end))
-
- ;; Wait a little if load is too high.
- (when (and jit-lock-stealth-load
- (> (car (load-average)) jit-lock-stealth-load))
- ;; In case sit-for runs any timers,
- ;; give them the expected current buffer.
- (with-current-buffer outer-buffer
- (sit-for (or jit-lock-stealth-time 30))))))))))))))
-
+ message-log-max
+ start)
+ (if (and jit-lock-stealth-load
+ (> (car (load-average)) jit-lock-stealth-load))
+ ;; Wait a little if load is too high.
+ (setq delay jit-lock-stealth-time)
+ (if (buffer-live-p buffer)
+ (with-current-buffer buffer
+ (if (and jit-lock-mode
+ (setq start (jit-lock-stealth-chunk-start (point))))
+ ;; Fontify one block of at most `jit-lock-chunk-size'
+ ;; characters.
+ (with-temp-message (if jit-lock-stealth-verbose
+ (concat "JIT stealth lock "
+ (buffer-name)))
+ (jit-lock-fontify-now start
+ (+ start jit-lock-chunk-size))
+ ;; Run again after `jit-lock-stealth-nice' seconds.
+ (setq delay (or jit-lock-stealth-nice 0)))
+ ;; Nothing to fontify here. Remove this buffer from
+ ;; `jit-lock-stealth-buffers' and run again immediately.
+ (setq jit-lock-stealth-buffers (cdr jit-lock-stealth-buffers))))
+ ;; Buffer is no longer live. Remove it from
+ ;; `jit-lock-stealth-buffers' and run again immediately.
+ (setq jit-lock-stealth-buffers (cdr jit-lock-stealth-buffers))))
+ ;; Call us again.
+ (when jit-lock-stealth-buffers
+ (timer-set-idle-time jit-lock-stealth-repeat-timer (current-idle-time))
+ (timer-inc-time jit-lock-stealth-repeat-timer delay)
+ (timer-activate-when-idle jit-lock-stealth-repeat-timer t)))))