NAME

Apache::Status - Embedded interpreter status information

SYNOPSIS

 <Location /perl-status>
 SetHandler  perl-script
 PerlHandler Apache::Status
 </Location>

DESCRIPTION

The Apache::Status module provides some information about the status of the Perl interpreter embedded in the server.

Configure like so:

 <Location /perl-status>
 SetHandler  perl-script
 PerlHandler Apache::Status
 </Location>

Other modules can "plugin" a menu item like so:

 Apache::Status->menu_item(
    'DBI' => "DBI connections", #item for Apache::DBI module
    sub {
        my($r,$q) = @_; #request and CGI objects
        my(@strings);
        push @strings,  "blobs of html";
        return \@strings;     #return an array ref
    }
 ) if Apache->module("Apache::Status"); #only if Apache::Status is loaded

WARNING: Apache::Status must be loaded before these modules via the PerlModule or PerlRequire directives.

OPTIONS

StatusDumper

When browsing symbol tables, the values of arrays, hashes ans calars can be viewed via Data::Dumper if this configuration variable is set to On:

 PerlSetVar StatusDumper On

StatusPeek

With this option On and the Apache::Peek module installed, functions and variables can be viewed ala Devel::Peek style:

 PerlSetVar StatusPeek On

StatusGraph

When StatusDumper is enabled, another link "OP Tree Graph" will be present with the dump if this configuration variable is set to On:

 PerlSetVar StatusGraph

This requires the B module (part of the Perl compiler kit) and B::Graph (version 0.03 or higher) module to be installed along with the dot program.

Dot is part of the graph visualization toolkit from AT&T: http://www.research.att.com/sw/tools/graphviz/).

WARNING: Some graphs may produce very large images, some graphs may produce no image if B::Graph's output is incorrect.

Dot

Location of the dot program for StatusGraph, if other than /usr/bin or /usr/local/bin

GraphDir

Directory where StatusGraph should write it's temporary image files. Default is $ServerRoot/logs/b_graphs

PREREQUISITES

The Devel::Symdump module, version 2.00 or higher.

SEE ALSO

perl(1), Apache(3), Devel::Symdump(3), Data::Dumper(3), B(3), B::Graph(3)

AUTHOR

Doug MacEachern