Confirm process status for avoiding dead-lock.

* twittering-mode.el: Confirm process status for avoiding
dead-lock.
(twittering-oauth-get-token-alist-native): confirm the process
status in order to avoid dead-lock. If the process exited
abnormally, the variable `result' becomes nil.
(twittering-oauth-get-token-alist-curl): likewise.
(twittering-verify-credentials): wait for the process to exit
in order to avoid dead-lock.
(twittering-get-list-index-sync): likewise.

ChangeLog

@@ -1,3 +1,15 @@
+2010-06-29  Tadashi MATSUO  <tad@mymail.twin.jp>
+
+	* twittering-mode.el: Confirm process status for avoiding
+	dead-lock.
+	(twittering-oauth-get-token-alist-native): confirm the process
+	status in order to avoid dead-lock. If the process exited
+	abnormally, the variable `result' becomes nil.
+	(twittering-oauth-get-token-alist-curl): likewise.
+	(twittering-verify-credentials): wait for the process to exit
+	in order to avoid dead-lock.
+	(twittering-get-list-index-sync): likewise.
+
 2010-06-09  Yuto Hayamizu  <y.hayamizu@gmail.com>
 
 	* twittering-mode.el (twittering-oauth-get-access-token): reject

twittering-mode.el

@@ -1142,10 +1142,20 @@ function."
 	     proc
 	     (lambda (&rest args)
 	       (let* ((proc (car args))
-		      (buffer (process-buffer proc)))
-		 (when buffer
+		      (buffer (process-buffer proc))
+		      (status (process-status proc)))
+		 (cond
+		  ((not (memq status '(nil closed exit failed signal)))
+		   ;; continue
+		   )
+		  (buffer
+		   (when twittering-debug-mode
+		     (with-current-buffer (twittering-debug-buffer)
+		       (insert-buffer-substring buffer)))
 		   (setq result
-			 (twittering-oauth-get-response-alist buffer))))))
+			 (twittering-oauth-get-response-alist buffer)))
+		  (t
+		   (setq result nil))))))
 	    (process-send-string proc request-str)
 	    (while (eq result 'queried)
 	      (sit-for 0.1))
@@ -1217,10 +1227,20 @@ function."
 	     proc
 	     (lambda (&rest args)
 	       (let* ((proc (car args))
-		      (buffer (process-buffer proc)))
-		 (when buffer
+		      (buffer (process-buffer proc))
+		      (status (process-status proc)))
+		 (cond
+		  ((not (memq status '(nil closed exit failed signal)))
+		   ;; continue
+		   )
+		  (buffer
+		   (when twittering-debug-mode
+		     (with-current-buffer (twittering-debug-buffer)
+		       (insert-buffer-substring buffer)))
 		   (setq result
-			 (twittering-oauth-get-response-alist buffer))))))
+			 (twittering-oauth-get-response-alist buffer)))
+		  (t
+		   (setq result nil))))))
 	    (while (eq result 'queried)
 	      (sit-for 0.1))
 	    result))))))
@@ -2940,12 +2960,22 @@ authorized -- The account has been authorized.")
 	   (twittering-call-api
 	    'verify-credentials
 	    `((sentinel . twittering-http-get-verify-credentials-sentinel)))))
-      (unless proc
+      (cond
+       ((null proc)
 	(setq twittering-account-authorization nil)
 	(message "Authorization for the account \"%s\" failed. Type M-x twit to retry."
 		 (twittering-get-username))
 	(setq twittering-username nil)
-	(setq twittering-password nil))))))
+	(setq twittering-password nil))
+       (t
+	(while (and (eq twittering-account-authorization 'queried)
+		    (memq (process-status proc) '(run connect open)))
+	  (sit-for 0.1))
+	(when (eq twittering-account-authorization 'queried)
+	  (setq twittering-account-authorization nil)
+	  (message "Authorization failed. Type M-x twit to retry.")
+	  (setq twittering-username nil)
+	  (setq twittering-password nil))))))))
 
 (defun twittering-http-get-verify-credentials-sentinel (header-info proc noninteractive &optional suc-msg)
   (let ((status-line (cdr (assq 'status-line header-info)))
@@ -5185,10 +5215,15 @@ variable `twittering-status-format'."
 
 (defun twittering-get-list-index-sync (username)
   (setq twittering-list-index-retrieved nil)
-  (twittering-get-list-index username)
-  (while (not twittering-list-index-retrieved)
-    (sit-for 0.1))
+  (let ((proc (twittering-get-list-index username)))
+    (when proc
+      (while (and (not twittering-list-index-retrieved)
+		  (not (memq (process-status proc)
+			     '(exit signal closed failed nil))))
+	(sit-for 0.1))))
   (cond
+   ((null twittering-list-index-retrieved)
+    nil)
    ((stringp twittering-list-index-retrieved)
     (if (string= "" twittering-list-index-retrieved)
 	(message "%s does not have a list." username)