From 787dcffb3033312a719954e88d9d05aa5d15803d Mon Sep 17 00:00:00 2001
From: ueno <ueno>
Date: Tue, 18 Jul 2006 00:56:56 +0000
Subject: [PATCH] * epg.el (epg-process-filter-running): New variable.
 (epg--start): Setup epg-process-filter-running.
 (epg--process-filter): Allow only one status handler to run
 at a time.

---
 ChangeLog |    7 +++++++
 epg.el    |   39 ++++++++++++++++++++++++---------------
 2 files changed, 31 insertions(+), 15 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 7abc7a8..76da7f0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2006-07-18  Daiki Ueno  <ueno@unixuser.org>
+
+	* epg.el (epg-process-filter-running): New variable.
+	(epg--start): Setup epg-process-filter-running.
+	(epg--process-filter): Allow only one status handler to run at a
+	time.
+
 2006-07-14  Daiki Ueno  <ueno@unixuser.org>
 
 	* epg-pgp50i.el: New file.
diff --git a/epg.el b/epg.el
index 599948f..82d5cb6 100644
--- a/epg.el
+++ b/epg.el
@@ -48,6 +48,7 @@
   "An alist mapping from key ID to user ID.")
 
 (defvar epg-read-point nil)
+(defvar epg-process-filter-running nil)
 (defvar epg-pending-status-list nil)
 (defvar epg-key-id nil)
 (defvar epg-context nil)
@@ -828,6 +829,8 @@ This function is for internal use only."
     (with-current-buffer buffer
       (make-local-variable 'epg-read-point)
       (setq epg-read-point (point-min))
+      (make-local-variable 'epg-process-filter-running)
+      (setq epg-process-filter-running nil)
       (make-local-variable 'epg-pending-status-list)
       (setq epg-pending-status-list nil)
       (make-local-variable 'epg-key-id)
@@ -860,21 +863,27 @@ This function is for internal use only."
 	(set-buffer (process-buffer process))
 	(goto-char (point-max))
 	(insert input)
-	(goto-char epg-read-point)
-	(beginning-of-line)
-	(while (looking-at ".*\n")	;the input line finished
-	  (save-excursion
-	    (if (looking-at "\\[GNUPG:] \\([A-Z_]+\\) ?\\(.*\\)")
-		(let* ((status (match-string 1))
-		       (string (match-string 2))
-		       (symbol (intern-soft (concat "epg--status-" status))))
-		  (if (member status epg-pending-status-list)
-		      (setq epg-pending-status-list nil))
-		  (if (and symbol
-			   (fboundp symbol))
-		      (funcall symbol epg-context string)))))
-	  (forward-line))
-	(setq epg-read-point (point)))))
+	(unless epg-process-filter-running
+	  (unwind-protect
+	      (progn
+		(setq epg-process-filter-running t)
+		(goto-char epg-read-point)
+		(beginning-of-line)
+		(while (looking-at ".*\n") ;the input line finished
+		  (save-excursion
+		    (if (looking-at "\\[GNUPG:] \\([A-Z_]+\\) ?\\(.*\\)")
+			(let* ((status (match-string 1))
+			       (string (match-string 2))
+			       (symbol (intern-soft (concat "epg--status-"
+							    status))))
+			  (if (member status epg-pending-status-list)
+			      (setq epg-pending-status-list nil))
+			  (if (and symbol
+				   (fboundp symbol))
+			      (funcall symbol epg-context string)))))
+		  (forward-line))
+		(setq epg-read-point (point)))
+	    (setq epg-process-filter-running nil))))))
 
 (defun epg-read-output (context)
   "Read the output file CONTEXT and return the content as a string."
-- 
1.7.10.4