Logging to a ASCII file

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The MIDAS logger (mlogger) is able to record information in an ASCII file.

Under two dedicated subdirectories Links BOR and Links EOR , predefined links exist which will be used at begin-of-run (BOR) and end-of-run (EOR) respectively for storing parameter values into an ASCII file. These elements are ODB links allowing the user to extend the list with any parameter in the ODB database.

The following example shows a /Logger/Runlog/ASCII tree as created by mlogger. See ODB /Logger/Runlog/ASCII subtree for an explanation of the meaning of each key.

Example /Logger/Runlog/ASCII subtree

[local:midas]Runlog>ls -lr ASCII

Key name Type #Val Size Last Opn Mode Value

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ASCII DIR

   Write data                  BOOL    1     4     >99d 0   RWD  n
   filename                    STRING  1     80    >99d 0   RWD  runlog.log
   Links BOR                   DIR
       Run number -> /Runinfo/Run number
                               INT32   1     4     11h  0   RWD  1517
       Start time -> /Runinfo/Start time
                               STRING  1     32    11h  0   RWD  Mon Oct 31 13:39:21 2022
   Links EOR                   DIR
       Stop time -> /Runinfo/Stop time
                               STRING  1     32    3h   0   RWD  Tue Nov  8 09:27:59 2022
       Comment -> /Experiment/Edit on start/Comment
                               STRING  1     128   11h  0   RWD  FEP Hit Finder