X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=tools.py;h=334f33f297e3017a7e764f4600f802a68ca9c18c;hb=refs%2Fheads%2Fpackaging;hp=f08182632d657c3b2493a66f0b77b21d9eaa0b1e;hpb=cbe129e67722d4c042fd48d045ef43d8796381e8;p=nodemanager.git

diff --git a/tools.py b/tools.py
index f081826..334f33f 100644
--- a/tools.py
+++ b/tools.py
@@ -310,6 +310,14 @@ def get_node_virt ():
         f.write(virt)
     return virt
 
+### this return True or False to indicate that systemctl is present on that box
+# cache result in memory as _has_systemctl
+_has_systemctl=None
+def has_systemctl ():
+    if _has_systemctl is None:
+        _has_systemctl = (subprocess.call([ 'systemctl', '--help' ]) == 0)
+    return _has_systemctl
+
 # how to run a command in a slice
 # now this is a painful matter
 # the problem is with capsh that forces a bash command to be injected in its exec'ed command
@@ -333,7 +341,7 @@ def command_in_slice (slicename, argv):
 def init_signals ():
     def handler (signum, frame):
         logger.log("Received signal %d - exiting"%signum)
-        exit(1)
+        os._exit(1)
     signal.signal(signal.SIGHUP,handler)
     signal.signal(signal.SIGQUIT,handler)
     signal.signal(signal.SIGINT,handler)