From f376379e46d039a85de6d2e262a83c97d1cfce74 Mon Sep 17 00:00:00 2001
From: Papoteur <papoteur@mageia.org>
Date: Sun, 28 Jul 2019 18:50:33 +0200
Subject: Prevent launching when an instance is already running

---
 lib/isodumper.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/isodumper.py b/lib/isodumper.py
index 38a41a4..797c551 100755
--- a/lib/isodumper.py
+++ b/lib/isodumper.py
@@ -48,6 +48,8 @@ from subprocess import call, Popen, PIPE
 from pydbus import SystemBus
 from gi.repository import GLib
 
+import psutil
+
 class NoUDisks2(Exception):
     pass
 
@@ -440,6 +442,12 @@ NTFS or ext. You can specify a volume name and the format in a new dialog box.<B
         # Call translation catalog
         gettext.install(APP, localedir=DIR, names=('ngettext',))
 
+        for pid in psutil.pids():
+            p = psutil.Process(pid)
+            if p.name() == "isodumper" :
+                raise(Exception(_("There is another instance of Isodumper already running.")))
+
+
         #TODO Read log level from command line
  
         # define size of the selected device
-- 
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