man Apache::StatINC () - Reload %INC files when updated on disk

NAME

Apache::StatINC - Reload %INC files when updated on disk

SYNOPSIS

  #httpd.conf or some such
  #can be any Perl*Handler
  PerlInitHandler Apache::StatINC

DESCRIPTION

When Perl pulls a file via CWrequire, it stores the filename in the global hash CW%INC. The next time Perl tries to CWrequire the same file, it sees the file in CW%INC and does not reload from disk. This module's handler iterates over CW%INC and reloads the file if it has changed on disk.

Note that StatINC operates on the current context of CW@INC. Which means, when called as a Perl*Handler it will not see CW@INC paths added or removed by Apache::Registry scripts, as the value of CW@INC is saved on server startup and restored to that value after each request. In other words, if you want StatINC to work with modules that live in custom CW@INC paths, you should modify CW@INC when the server is started. Besides, 'use lib' in startup scripts, you can also set the PERL5LIB variable in the httpd's environment to include any non-standard 'lib' directories that you choose. For example, you might use a script called 'start_httpd' to start apache, and include a line like this: 

        PERL5LIB=/usr/local/foo/myperllibs; export PERL5LIB

When you have problems with modules not being reloaded, please refer to the following lines in 'perlmodlib':

"Always use -w. Try to CWuse strict; (or CWuse strict qw(...);). Remember that you can add CWno strict qw(...); to individual blocks of code that need less strictness. Always use -w. Always use -w! Follow the guidelines in the perlstyle(1) manual."

Warnings when running under mod_perl is enabled with 'PerlWarn On' in your httpd.conf.

It will most likely help you to find the problem. Really.

OPTIONS

StatINC_UndefOnReload
Normally, StatINC will turn of warnings to avoid Subroutine redefined warnings when it reloads a file. However, this does not disable the Perl mandatory warning when re-defining CWconstant subroutines (see perldoc perlsub). With this option On, StatINC will invoke the Apache::Symbol undef_functions method to avoid these mandatory warnings: 
 PerlSetVar StatINC_UndefOnReload On
StatINC_Debug
You can make StatINC tell when it reloads a module by setting this option to on. 
 PerlSetVar StatINC_Debug 1
The only used debug level is currently 1.

SEE ALSO

mod_perl(3)

AUTHOR

Currently maintained by Ask Bjoern Hansen <ask@netcetera.dk>. Written by Doug MacEachern.