I've got some legacy CGI code that does a bunch of processing and uses the old
hack of $| = 1; print "foo\n"; do_work(); print "foo done\n"; etc. (solution #1
from http://wiki.catalystframework.org/wiki/longcomputations)
While I'll eventually convert it to a job queue, I'd like to create an
output-identical implementation first with Catalyst, however it seems like I'm
getting output buffering when I don't want it.
As a very simple test, I've set up apache 2.2, mod_fastcgi
(FastCgiExternalServer with -flush and without -flush) and a method like this:
sub test: Local {
my ($self, $c) = @_;
$c->res->body('');
$c->response->content_type( 'text/plain; charset=utf-8' );
$c->finalize_headers;
my $i;
for($i=1;$i<8;$i++) {
$c->write("$i: foo bar baz\n");
sleep(1);
}
}
I see all the data at once in my browser instead of a line every second, and
with tcpdump, can see that all of the data is coming back in one packet and not
in 8+ smaller packets like I expect. If I make the string that gets passed to
write longer, I get several packets, but all at once (and not with each
iteration through the for loop).
Am I missing something obvious? Is there some way to get the behavior I'm
expecting?
--
Daniel J. Luke
+========================================================+
| *---------------- dl...@geeklair.net ----------------* |
| *-------------- http://www.geeklair.net -------------* |
+========================================================+
| Opinions expressed are mine and do not necessarily |
| reflect the opinions of my employer. |
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