shutdown is common enough to make a standard fixed name for it

git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@1645 e5f2f494-b856-4b98-b285-d166d9295462

src/lib/python/isc/config/ccsession.py

@@ -89,6 +89,7 @@ COMMAND_GET_CONFIG = "get_config"
 COMMAND_SET_CONFIG = "set_config"
 COMMAND_GET_MODULE_SPEC = "get_module_spec"
 COMMAND_MODULE_SPEC = "module_spec"
+COMMAND_SHUTDOWN = "shutdown"
 
 def parse_command(msg):
     """Parses what may be a command message. If it looks like one,

src/lib/python/isc/config/cfgmgr.py

@@ -325,7 +325,7 @@ class ConfigManager:
                 answer = self._handle_get_config(arg)
             elif cmd == isc.config.ccsession.COMMAND_SET_CONFIG:
                 answer = self._handle_set_config(arg)
-            elif cmd == "shutdown":
+            elif cmd == isc.config.ccsession.COMMAND_SHUTDOWN:
                 # TODO: logging
                 #print("[b10-cfgmgr] Received shutdown command")
                 self.running = False