Added a TRACE log level, for those versions of Python that do not have it, and

moved XendDomainInfo.update's debugging onto that level, as it has become
overly verbose.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

tools/python/xen/xend/XendDomainInfo.py

@@ -24,6 +24,7 @@ Author: Mike Wray <mike.wray@hp.com>
 
 """
 
+import logging
 import string
 import time
 import threading
@@ -38,7 +39,6 @@ from xen.xend import scheduler
 from xen.xend import sxp
 from xen.xend import XendRoot
 from xen.xend.XendBootloader import bootloader
-from xen.xend.XendLogging import log
 from xen.xend.XendError import XendError, VmError
 from xen.xend.XendRoot import get_component
 
@@ -102,6 +102,9 @@ ZOMBIE_PREFIX = 'Zombie-'
 xc = xen.lowlevel.xc.new()
 xroot = XendRoot.instance()
 
+log = logging.getLogger("xend.XendDomainInfo")
+#log.setLevel(logging.TRACE)
+
 
 ## Configuration entries that we expect to round-trip -- be read from the
 # config file or xc, written to save-files (i.e. through sxpr), and reused as
@@ -802,7 +805,7 @@ class XendDomainInfo:
         """Update with info from xc.domain_getinfo().
         """
 
-        log.debug("XendDomainInfo.update(%s) on domain %d", info, self.domid)
+        log.trace("XendDomainInfo.update(%s) on domain %d", info, self.domid)
 
         if not info:
             info = dom_get(self.domid)
@@ -813,7 +816,7 @@ class XendDomainInfo:
         self.validateInfo()
         self.refreshShutdown(info)
 
-        log.debug("XendDomainInfo.update done on domain %d: %s", self.domid,
+        log.trace("XendDomainInfo.update done on domain %d: %s", self.domid,
                   self.info)
 
 

tools/python/xen/xend/XendLogging.py

@@ -27,6 +27,14 @@ __all__ = [ 'log', 'init', 'getLogFilename', 'addLogStderr',
             'removeLogStderr' ]
 
 
+if not 'TRACE' in logging.__dict__:
+    logging.TRACE = logging.DEBUG - 1
+    logging.addLevelName(logging.TRACE,'TRACE')
+    def trace(self, *args, **kwargs):
+        self.log(logging.TRACE, *args, **kwargs)
+    logging.Logger.trace = trace
+
+
 log = logging.getLogger("xend")