Let browser say "done" immediately after parent finish and do not wait child.

[Zhidian Du]

I am writing a CGI program.

Why browsers always wait (saying "transferring data from..." from the
status bar) until both parent and chilld finish and say "done".

How can I let browser say "done" immediately after parent finish.


I use a query->end_html() in there and it doesn't work.

Thanks.


FORK: {

if ( $pid = fork ) {

print "Wait for a couple minutes and get your result via email\n";

print $query->end_html();

exit 0;
}
elsif ( defined $pid ) {

#running a couple minutes here

}
elsif ( $! == EAGAIN ) {
sleep 3;
redo FORK;
}
else {

print " Could not fork $!";
return 0;
}

 

[Ben Morrow]

I am writing a CGI program.

Why browsers always wait (saying "transferring data from..." from the
status bar) until both parent and chilld finish and say "done".

How can I let browser say "done" immediately after parent finish.

I use a query->end_html() in there and it doesn't work.

You need to close STDOUT in the child.

Ben

 

[David Efflandt]

I am writing a CGI program.

Why browsers always wait (saying "transferring data from..." from the
status bar) until both parent and chilld finish and say "done".

How can I let browser say "done" immediately after parent finish.


I use a query->end_html() in there and it doesn't work.

Look for 'daemonize' in 'perldoc perlipc'. You have to fork and
disassociate the child from the parent to not hold up the parent.