Here are 2 snippets that you can try to see the effect.

hello.pl

#!/usr/bin/perl -w
use CGI::Carp qw(fatalsToBrowser);
use strict;
use warnings;
use CGI qw(:standard );

my $http_body_length = 0;
my $http_body = "<html>\n<head>\n</head>\n<body>\n<p>Hello World</p>\n
+</body>\n</html>\n";
{
    use bytes;
    $http_body_length = length($http_body);
}
print header(-type => 'text/html',
                -content_length => $http_body_length );
print $http_body;

[download]

You will see that hello.pl sends keep-alives as expected as the headers are parsed by Apache and the connection remains open

nph-hello.pl

#!/usr/bin/perl -w
use CGI::Carp qw(fatalsToBrowser);
use strict;
use warnings;
use CGI qw(:standard );

my $http_body_length = 0;
my $http_body = "<html>\n<head>\n</head>\n<body>\n<p>Hello World</p>\n
+</body>\n</html>\n";
{
    use bytes;
    $http_body_length = length($http_body);
}
print header(-type => 'text/html',
                -content_length => $http_body_length,
                -nph => 1);
print $http_body;

[download]

You will see that nph-hello.pl does not send keep-alives as the headers are not parsed by Apache and the connection closes upon exit

I have tried adding the 'Connection' and 'Keep-Alive' headers to nph-hello.pl and of course they are sent but Apache does not keep the connection open. Example:

print header(-type => 'text/html',
                -content_length => $http_body_length,
                -connection => 'Keep-Alive',
                -nph => 1);

[download]

This is what I am trying to accomplish.

In reply to Re^4: NPH and Connection: Keep-Alive by gfairweather
in thread NPH and Connection: Keep-Alive by gfairweather

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