ZoneMinder::Logger(3pm) 				User Contributed Perl Documentation				   ZoneMinder::Logger(3pm)

NAME

       ZoneMinder::Logger - ZoneMinder Logger module

SYNOPSIS

	 use ZoneMinder::Logger;
	 use ZoneMinder::Logger qw(:all);

	 logInit( "myproc", DEBUG );

	 Debug( "This is what is happening" );
	 Info( "Something interesting is happening" );
	 Warning( "Something might be going wrong." );
	 Error( "Something has gone wrong!!" );
	 Fatal( "Something has gone badly wrong, gotta stop!!" );
	 Panic( "Something fundamental has gone wrong, die with stack trace );

DESCRIPTION

       The ZoneMinder:Logger module contains the common debug and error reporting routines used by the ZoneMinder scripts.

       To use debug in your scripts you need to include this module, and call logInit. Thereafter you can sprinkle Debug or Error calls etc
       throughout the code safe in the knowledge that they will be reported to your error log, and possibly the syslogger, in a meaningful and
       consistent format.

       Debug is discussed in terms of levels where 1 and above (currently only 1 for scripts) is considered debug, 0 is considered as
       informational, -1 is a warning, -2 is an error and -3 is a fatal error or panic. Where levels are mentioned below as thresholds the value
       given and anything with a lower level (ie. more serious) will be included.

METHODS

       logInit ( $id, %options );
	   Initialises the debug and prepares the logging for forthcoming operations. If not called explicitly it will be called by the first
	   debug call in your script, but with default (and probably meaningless) options. The only compulsory arguments are $id which must be a
	   string that will identify debug coming from this script in mixed logs. Other options may be provided as below,

	    Option	  Default	 Description
	    ---------	  ---------	 -----------
	    level	  INFO	     The initial debug level which defines which statements are output and which are ignored
	    trace	  0	     Whether to use the Carp::shortmess format in debug statements to identify where the debug was emitted from
	    termLevel	  NOLOG      At what level debug is written to terminal standard error, 0 is no, 1 is yes, 2 is write only if terminal
	    databaseLevel INFO	     At what level debug is written to the Log table in the database;
	    fileLevel	  NOLOG      At what level debug is written to a log file of the format of <id>.log in the standard log directory.
	    syslogLevel   INFO	     At what level debug is written to syslog.

	   To disable any of these action entirely set to NOLOG

       logTerm ();
	   Used to end the debug session and close any logs etc. Not usually necessary.

       $id	      = logId ( [$id] );
       $level	      = logLevel ( [$level] );
       $trace	      = logTrace ( [$trace] );
       $level	      = logLevel ( [$level] );
       $termLevel     = logTermLevel ( [$termLevel] );
       $databaseLevel = logDatabaseLevel ( [$databaseLevel] );
       $fileLevel     = logFileLevel ( [$fileLevel] );
       $syslogLevel   = logSyslogLevel ( [$syslogLevel] );
	   These methods can be used to get and set the current settings as defined in logInit.

       Debug( $string );
	   This method will output a debug message if the current debug level permits it, otherwise does nothing. This message will be tagged with
	   the DBG string in the logs.

       Info( $string );
	   This method will output an informational message if the current debug level permits it, otherwise does nothing. This message will be
	   tagged with the INF string in the logs.

       Warning( $string );
	   This method will output a warning message if the current debug level permits it, otherwise does nothing. This message will be tagged
	   with the WAR string in the logs.

       Error( $string );
	   This method will output an error message if the current debug level permits it, otherwise does nothing. This message will be tagged
	   with the ERR string in the logs.

       Fatal( $string );
	   This method will output a fatal error message and then die if the current debug level permits it, otherwise does nothing. This message
	   will be tagged with the FAT string in the logs.

       Panic( $string );
	   This method will output a panic error message and then die with a stack trace if the current debug level permits it, otherwise does
	   nothing. This message will be tagged with the PNC string in the logs.

   EXPORT
       None by default.  The :constants tag will export the debug constants which define the various levels of debug The :variables tag will
       export variables containing the current debug id and level The :functions tag will export the debug functions. This or :all is what you
       would normally use.  The :all tag will export all above symbols.

SEE ALSO

       Carp Sys::Syslog

       The ZoneMinder README file Troubleshooting section for an extended discussion on the use and configuration of syslog with ZoneMinder.

       http://www.zoneminder.com

AUTHOR

       Philip Coombes, <philip.coombes@zoneminder.com>

COPYRIGHT AND LICENSE

       Copyright (C) 2001-2008	Philip Coombes

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.3 or,
       at your option, any later version of Perl 5 you may have available.

POD ERRORS

       Hey! The above document had some coding errors, which are explained below:

       Around line 830:
	   You forgot a '=back' before '=head2'

perl v5.14.2							    2011-06-28						   ZoneMinder::Logger(3pm)