X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=lisp%2Fnnheaderxm.el;h=af0979cab49000ea600be7e049e409f67ee928d6;hb=04ba5250e9e47ebe40860a0902d4ef6405ca143f;hp=ecd256b4b864c3534cbbe382c7077d84942b4fc4;hpb=82300762c3419b73fc2e994b14e3d520fe88b0a9;p=elisp%2Fgnus.git-

diff --git a/lisp/nnheaderxm.el b/lisp/nnheaderxm.el
index ecd256b..af0979c 100644
--- a/lisp/nnheaderxm.el
+++ b/lisp/nnheaderxm.el
@@ -1,7 +1,10 @@
 ;;; nnheaderxm.el --- making Gnus backends work under XEmacs
-;; Copyright (C) 1996,97,98,99 Free Software Foundation, Inc.
+
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003
+;;      Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
+;;	Katsumi Yamaoka  <yamaoka@jpl.org>
 ;; Keywords: news
 
 ;; This file is part of GNU Emacs.
@@ -25,17 +28,94 @@
 
 ;;; Code:
 
-(defun nnheader-xmas-run-at-time (time repeat function &rest args)
-  (start-itimer
-   "nnheader-run-at-time"
-   `(lambda ()
-      (,function ,@args))
-   time repeat))
+(if (condition-case nil
+	(progn
+	  (unless (or itimer-process itimer-timer)
+	    (itimer-driver-start))
+	  ;; Check whether there is a bug to which the difference of
+	  ;; the present time and the time when the itimer driver was
+	  ;; woken up is subtracted from the initial itimer value.
+	  (let* ((inhibit-quit t)
+		 (ctime (current-time))
+		 (itimer-timer-last-wakeup
+		  (prog1
+		      ctime
+		    (setcar ctime (1- (car ctime)))))
+		 (itimer-list nil)
+		 (itimer (start-itimer "nnheader-run-at-time" 'ignore 5)))
+	    (sleep-for 0.1) ;; Accept the timeout interrupt.
+	    (prog1
+		(> (itimer-value itimer) 0)
+	      (delete-itimer itimer))))
+      (error nil))
+    (defun nnheader-xmas-run-at-time (time repeat function &rest args)
+      "Emulating function run as `run-at-time'.
+TIME should be nil meaning now, or a number of seconds from now.
+Return an itimer object which can be used in either `delete-itimer'
+or `cancel-timer'."
+      (apply #'start-itimer "nnheader-run-at-time"
+	     function (if time (max time 1e-9) 1e-9)
+	     repeat nil t args))
+  (defun nnheader-xmas-run-at-time (time repeat function &rest args)
+    "Emulating function run as `run-at-time' in the right way.
+TIME should be nil meaning now, or a number of seconds from now.
+Return an itimer object which can be used in either `delete-itimer'
+or `cancel-timer'."
+    (let ((itimers (list nil)))
+      (setcar
+       itimers
+       (apply #'start-itimer "nnheader-run-at-time"
+	      (lambda (itimers repeat function &rest args)
+		(let ((itimer (car itimers)))
+		  (if repeat
+		      (progn
+			(set-itimer-function
+			 itimer
+			 (lambda (itimer repeat function &rest args)
+			   (set-itimer-restart itimer repeat)
+			   (set-itimer-function itimer function)
+			   (set-itimer-function-arguments itimer args)
+			   (apply function args)))
+			(set-itimer-function-arguments
+			 itimer
+			 (append (list itimer repeat function) args)))
+		    (set-itimer-function
+		     itimer
+		     (lambda (itimer function &rest args)
+		       (delete-itimer itimer)
+		       (apply function args)))
+		    (set-itimer-function-arguments
+		     itimer
+		     (append (list itimer function) args)))))
+	      1e-9 (if time (max time 1e-9) 1e-9)
+	      nil t itimers repeat function args)))))
+
+(defun nnheader-xmas-Y-or-n-p (prompt)
+  "Ask user a \"Y/n\" question. Return t if answer is neither \"n\", \"N\" nor \"C-g\"."
+  (if (should-use-dialog-box-p)
+      (yes-or-no-p-dialog-box prompt)
+    (let ((cursor-in-echo-area t)
+	  (echo-keystrokes 0)
+	  (inhibit-quit t)
+	  event)
+      (message "%s(Y/n) " prompt)
+      (while (or (not (key-press-event-p (setq event (next-command-event))))
+		 (not (or (eq (event-key event) 'escape)
+			  (memq (event-to-character event)
+				'(?\  ?N ?Y ?\C-g ?\e ?\n ?\r ?n ?y))))))
+      (if (memq (event-key event) '(?\C-g ?N ?n))
+	  (progn
+	    (message "%s(Y/n) No" prompt)
+	    nil)
+	(message "%s(Y/n) Yes" prompt)
+	t))))
 
-(fset 'nnheader-run-at-time 'nnheader-xmas-run-at-time)
-(fset 'nnheader-cancel-timer 'delete-itimer)
-(fset 'nnheader-cancel-function-timers 'ignore)
+(defalias 'nnheader-run-at-time 'nnheader-xmas-run-at-time)
+(defalias 'nnheader-cancel-timer 'delete-itimer)
+(defalias 'nnheader-cancel-function-timers 'ignore)
+(defalias 'nnheader-string-as-multibyte 'identity)
+(defalias 'nnheader-Y-or-n-p 'nnheader-xmas-Y-or-n-p)
 
 (provide 'nnheaderxm)
 
-;;; nnheaderxm.el ends here.
+;;; nnheaderxm.el ends here