mod_fcgi/perl: Problem with signals

Hi again!

I just tried the example from FastCGI.com/FAQ. How can I see, that the 
handler was called?
I tried this:
(some added warns to the example on fastcgi.com)

#!/usr/bin/perl

use FCGI;
use strict;

my $count = 0;
my $handling_request = 0;
my $exit_requested = 0;

my $request = FCGI::Request();

sub sig_handler {
    $exit_requested = 1;
    warn "got signal";                                       # added to 
get an entry in the apache error-log, but nothing when reloading or 
restarting apache
    exit(0) if !$handling_request;                      # also didnt get 
this entry in the apache error-log saying the script exited with status 0
}

$SIG{USR1} = \&sig_handler;
$SIG{TERM} = \&sig_handler;
$SIG{PIPE} = 'IGNORE';

while ($handling_request = ($request->Accept() >= 0)) {
    &do_request;
    $handling_request = 0;
    last if $exit_requested;
}

$request->Finish();
warn 'stopping';                                        # added to get 
an entry in apache error-log, just as above - nothing in the apache 
errorlog!
close( LOG );

exit(0);

sub do_request() {
    print("Content-type: text/html\r\n\r\n", ++$count);
    $request->Finish();
    warn 'did request';                           # added to see that 
warn really works. Yepp, those entries are in the apache log for each 
request!
}


I read that programmers should do nearly nothing in a handler because of 
limitations.
Is warn already too much?

Is my conclusion that the handler isnt executed at all wrong?

thanks
Albert

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