From 452d193a92d8288f50d01c0a7640aec1ab20fa4d Mon Sep 17 00:00:00 2001
From: miljenko <miljenko>
Date: Fri, 9 Dec 2005 12:10:03 +0000
Subject: [PATCH] Removed bug in local "remote" execution.

Bug found by:
Submitted by:
Requested by:
Reviewed by:
Approved by:
Obtained from:
---
 exec.tcl | 55 ++++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 38 insertions(+), 17 deletions(-)

diff --git a/exec.tcl b/exec.tcl
index 921377f..e7a67c9 100755
--- a/exec.tcl
+++ b/exec.tcl
@@ -62,11 +62,21 @@ proc nexec { args } {
       tk_messageBox -title "Editor only" \
          -message "Running in editor only mode. Cannot execute commands. Please report this problem." \
          -type ok
-      exit 5
+      ;#exit 5
+      return ""
     }
 
     if { $remote_exec } {
-        if { ! $exec_sockets_opened } { open_exec_sockets }
+        if { ! $exec_sockets_opened } { 
+            open_exec_sockets 
+            if { ! [info exists exec_sock] } {
+                tk_messageBox -title "Editor only" \
+                   -message "Cannot open sockets.\nMode changed to \"editor only\"." \
+                   -type ok
+                set editor_only true
+                return ""
+            }
+        }
         set exec_results ""
         puts $exec_sock "$args"
         vwait exec_results_ready
@@ -119,6 +129,7 @@ proc nexec_monitor { args } {
 proc open_exec_sockets {} {
     global exec_hosts remote_exec exec_sockets_opened
     global exec_host exec_port monitor_port exec_sock monitor_sock
+    global editor_only
 
     if { ! $remote_exec } { return }
 
@@ -135,20 +146,25 @@ proc open_exec_sockets {} {
     }
 
     if { ! $remote_exec } { return }
-    set exec_sock [socket -async $exec_host $exec_port]
-    set monitor_sock [socket -async $exec_host $monitor_port]
 
     set fail true
     while {$fail} {
 
-        for { set i 1 } { $i <= 4 } { incr i } {
-            if {[lindex [fconfigure $exec_sock -sockname] 0] != "0.0.0.0" &&
-                [lindex [fconfigure $monitor_sock -sockname] 0] != "0.0.0.0" } {
-               set fail false
-               break
-           } else {
-               after 250 ;# Max 2 sec for socket creation
-           }
+        if { ! [info exists exec_sock] || ! [info exists monitor_sock] } {
+          catch {set exec_sock [socket -async $exec_host $exec_port]}
+          catch {set monitor_sock [socket -async $exec_host $monitor_port]}
+        } 
+
+        if { [info exists exec_sock] && [info exists monitor_sock] } {
+            for { set i 1 } { $i <= 4 } { incr i } {
+                if {[lindex [fconfigure $exec_sock -sockname] 0] != "0.0.0.0" &&
+                    [lindex [fconfigure $monitor_sock -sockname] 0] != "0.0.0.0" } {
+                   set fail false
+                   break
+               } else {
+                   after 250 ;# Max 2 sec for socket creation
+               }
+            }
         }
 
         if { $fail } {
@@ -156,6 +172,8 @@ proc open_exec_sockets {} {
                 "Cannot open sockets {$exec_host,$exec_port|$monitor_port}" \
                 "" 0 "Retry" "Configure remote hosts" "Editor only mode" ]
             switch $sel {
+                0 { ;# retry
+                  }
                 1 { configRemoteHosts
                     set at_least_one_up false
                     set n [llength $exec_hosts]
@@ -172,11 +190,6 @@ proc open_exec_sockets {} {
                         set editor_only true
                         .menubat.experiment entryconfigure \
                              "Execute" -state disabled
-                    } else {
-                        set exec_sock 
-                            [socket -async $exec_host $exec_port]
-                        set monitor_sock 
-                            [socket -async $exec_host $monitor_port] 
                     }
                   }
 
@@ -200,6 +213,14 @@ proc setOperMode { mode } {
     global nmbufs nmbclusters
     global editor_only
 
+    if { $mode == "exec" } { ;# let's try something, sockets should be opened
+        nexec id -u
+        if { $editor_only } { ;# if set in nexec or open_exec_sockets
+	    .menubar.experiment entryconfigure "Execute" -state disabled
+            return
+        }
+    }
+
     # Verify that links to external interfaces are properly configured
     if { $mode == "exec" } {
 	set extifcs [nexec ifconfig -l]
-- 
2.39.5