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Re^2: keeping connection alive while spending time building a zip file

by pmqs (Friar)
on Aug 12, 2011 at 15:05 UTC ( #920038=note: print w/replies, xml ) Need Help??


in reply to Re: keeping connection alive while spending time building a zip file
in thread keeping connection alive while spending time building a zip file

Did a quick proof of concept to see if I could stream a zip file straight to a browser while it was being created.

The CGI script below is hard wired to create a zip file that contains the contents of two files, namely /tmp/file1 and /tmp/file2.

use IO::Compress::Zip qw(:all) ; select STDOUT; $| = 1; my $OUT = \*STDOUT; print <<EOM; Status: 200 OK Content-Type: application/zip Transfer-Encoding: chunked EOM my @files = qw(/tmp/file1 /tmp/file2) ; zip [@files] => '-', FilterEnvelope => sub { # Chunk the output my $length = length($_); $_ = sprintf("%x", $length) . "\r\n" . $_ . "\r\n"; $_ .= "\r\n" unless $length; 1; } ;
Whether this helps in your use-case is depends on where the 10 minute delay comes from. If the delay is CPU/network related, this may help a bit, but it probably won't solve the issue for you.

Anyway, had created the code written, so thought I'd share it with you.

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