Prevent launching when an instance is already running

1 files changed, 8 insertions, 0 deletions

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