Changeset 251f8b1 in rtems


Ignore:
Timestamp:
Sep 2, 1998, 2:22:40 PM (21 years ago)
Author:
Jennifer Averett <Jennifer.Averett@…>
Branches:
4.10, 4.11, 4.8, 4.9, master
Children:
d778b4a
Parents:
4cf89a8
Message:

Added text to describe System log, Non-system logs,facility, and severity.

File:
1 edited

Legend:

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Added
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  • doc/new_chapters/eventlog.t

    r4cf89a8 r251f8b1  
    4242@subsection Log Files and Events
    4343
    44 System log
    45 
    46 Non-system logs
    47 
    48 Events, facility, severity
     44The operating system uses a special log file named @code{XXX}. 
     45This log file is called the system log and is automatically created and
     46tracked by the operating system.  The system log is written to with
     47the @code{log_write} function.  An alternative log file may be written
     48using the @code{log_write_any} function.  It is possible to use @code{log_read}
     49to query the system and @code{log_write_entry} to a non-system log file
     50to produce a filtered version of the system log.  For example you could
     51produce a log of all disk controller faults that have occurred. 
     52
     53A non-system log may be a special log file created by an application to
     54describe application faults, or a subset of the system log created
     55by the application. 
     56
     57A facility is an identification code for a subsystem, device, or
     58other object about which information is being written to
     59a log file.  Severity is a rating of the error that is being logged.   
     60The facility identifier and the event severity are the basis for
     61subsequent log query.  A log query is used as a filter to
     62obtain a subset of a given log file.  The log file may be configured
     63to send out an event ... ???
     64
     65XXX Events
    4966
    5067@subsection Queries
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