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NTEmacs dies of multiple processes


From: MIYOSHI Masanori
Subject: NTEmacs dies of multiple processes
Date: Wed, 09 Jul 2003 20:47:20 +0900
User-agent: Wanderlust/2.11.1 (Wonderwall) EMIKO/1.14.1 (Choanoflagellata) LIMIT/1.14.7 (Fujiidera) APEL/10.5 Emacs/21.1 (i386-msvc-nt5.1.2600) MULE/5.0 (SAKAKI) Meadow/2.00 Beta1 (NADESHIKO)

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English, because the Emacs maintainers do not have
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Your bug report will be posted to the address@hidden mailing list,
and to the gnu.emacs.bug news group.

In GNU Emacs 21.3.50.1 (i386-msvc-nt5.1.2600)
 of 2003-07-09 on MALEBOLGIA
configured using `configure --with-msvc (12.00)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ja_JP.SJIS
  locale-coding-system: japanese-shift-jis
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

On NTEmacs-21.3 and NTEmacs CVS HEAD, the following evaluation
causes a crash.

(while t (start-process "ping" nil "ping.exe"))


The following is a quickhack to avoid the crash.

--- ./w32.c.orig        2003-02-04 23:32:54.000000000 +0900
+++ ./w32.c     2003-07-09 20:16:30.000000000 +0900
@@ -3450,11 +3450,20 @@
 
   if (rc == 0)
     {
-      flags = FILE_PIPE | FILE_READ | FILE_BINARY;
-      fd_info[phandles[0]].flags = flags;
+      if (phandles[0] >= MAXDESC || phandles[1] >= MAXDESC)
+       {
+         _close (phandles[0]);
+         _close (phandles[1]);
+         rc = -1;
+       }
+      else
+       {
+         flags = FILE_PIPE | FILE_READ | FILE_BINARY;
+         fd_info[phandles[0]].flags = flags;
 
-      flags = FILE_PIPE | FILE_WRITE | FILE_BINARY;
-      fd_info[phandles[1]].flags = flags;
+         flags = FILE_PIPE | FILE_WRITE | FILE_BINARY;
+         fd_info[phandles[1]].flags = flags;
+       }
     }
 
   return rc;




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