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SIGPIPE in server

From: Masatake YAMATO
Subject: SIGPIPE in server
Date: Sun, 03 Oct 2004 20:20:12 +0900 (JST)


I'm using following command line to use emacs over ssh connection:

    emacsclient -n -d localhost:10 --eval '(make-frame-on-display 

It almost works fine. However, I get following error(Newline is inserted by my 

    Debugger entered--Lisp error: (error "SIGPIPE raised on process server 
<*1*>; closed it")
      process-send-region(#<process server <*1*>> 1 47)
      server-process-filter(#<process server <*1*>> 
      "-nowait -eval -display localhost:10 
(make-frame-on-display&_\"localhost:10\") \n")

It seems that `process-send-region' gets SIGPIPE because -n(--no-wait) option 
the process dead quickly. The next patch suppresses the error with 
Question is what I should do after receiving the error. 
In the patch, the error is just reported by `message'. Is this OK?

Masatake YAMATO

2004-10-03  Masatake YAMATO  <address@hidden>

        * server.el (server-process-filter): Wrap `process-send-region' 
        by `condition-case' to guard the case when the pipe to PROC is 

Index: lisp/server.el
RCS file: /cvsroot/emacs/emacs/lisp/server.el,v
retrieving revision 1.97
diff -u -r1.97 server.el
--- lisp/server.el      19 Mar 2004 00:50:48 -0000      1.97
+++ lisp/server.el      3 Oct 2004 11:14:52 -0000
@@ -343,7 +343,11 @@
                      (let ((standard-output (current-buffer)))
                        (pp v)
-                       (process-send-region proc (point-min) (point-max))))))
+                       ;; Guard the case when the pipe to PROC is closed.
+                       (condition-case err
+                           (process-send-region proc (point-min) (point-max))
+                         (file-error (message "Ignore `file-error': %S" (cdr 
+                       ))))
              ;; ARG is a file name.
              ;; Collapse multiple slashes to single slashes.
              (setq arg (command-line-normalize-file-name arg))

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