From 3f6118dae132b16876582223af5a42756628467d Mon Sep 17 00:00:00 2001
From: sjing <sjing@8638fb3e-16cb-4fca-ae20-7b5d299a9bcd>
Date: Tue, 18 Dec 2012 08:53:57 +0000
Subject: [PATCH] keep the parent_fd before any change, then restore it after
 the change, since it's a global variable.

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@14676 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
---
 xCAT-server/sbin/xcatd | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xCAT-server/sbin/xcatd b/xCAT-server/sbin/xcatd
index f71d4faf4..0628022ab 100755
--- a/xCAT-server/sbin/xcatd
+++ b/xCAT-server/sbin/xcatd
@@ -1218,6 +1218,7 @@ sub plugin_command {
   # $req->{sequential} is 0 by default
   if (defined($req->{sequential}) && $req->{sequential}->[0]) {
       # PCM case, executing plugins sequentially in alphabetic order
+      my $old_parent_fd = $parent_fd;
       $parent_fd = 0;
       foreach (sort(keys %handler_hash)) {
         my $modname = $_;
@@ -1267,6 +1268,7 @@ sub plugin_command {
         }
       push @{$xcatresponses{xcatresponse}}, $Main::resps;        
       }
+    $parent_fd = $old_parent_fd;
   } else {
       # executing plugins parallel
   foreach (keys %handler_hash) {
@@ -1304,6 +1306,7 @@ sub plugin_command {
         if ($parfd) {  #If xCAT is doing multiple requests in same communication PID, things would get unfortunate otherwise
             $parent_fd = $parfd;
         }
+        my $org_parent_fd = $parent_fd;
         my $oldprogname=$$progname;
         $$progname=$oldprogname.": $modname instance";
         if ($sock) { close $pfd; }
@@ -1322,6 +1325,7 @@ sub plugin_command {
            ${"xCAT_plugin::".$modname."::"}{process_request}->($req,$callback,\&do_request);
         }
         $$progname=$oldprogname;
+        $parent_fd = $org_parent_fd;
         if ($sock) { 
           close($parent_fd);
           xexit(0);