Differences

This shows you the differences between two versions of the page.

--- gaudi:outputlevel [2009/07/25 13:51] – decianm
+++ gaudi:outputlevel [2010/03/19 10:05] (current) – nchiap
@@ Line 16: / Line 16: @@
   * ALWAYS (7)
   * NUM_LEVELS (8)
+===== Add output statements to your code =====
+In your C++-code, you can add these statements the following way, f.ex:
+<code c++>
+// (A)
+warning() << "Could not retrieve tracks. Skipping" << endmsg;
+// (B)
+if ( msgLevel(MSG::WARNING) ) warning() << "Could not retrieve tracks. Skipping" << endmsg;
+</code>
+All the other messages are printed by replacing "warning" with the appropriate level.
+Version (B) runs faster when the message level set will not display this message. Therefore version (B) should be used for low-level messages (Debug, Info, Warning) while version (A) is better for Error or Fatal messages.
+===== Change the output level in the options file =====
+In the options file, you can change the output level for a given class by setting:
+<code>
+myClass.OutputLevel = 4
+</code>
+for example for a tool:
+<code>
+Tuple.TupleToolEventInfo.OutputLevel = 4
+</code>

LHCb Wiki Pages