I appreciate the lead. If you or someone else could give me a clue as to where to add this delay and how to make the callback, it would be much appreciated. I'm unfamiliar with the methods used by LWP::UserAgent, and when I tried using the special ':content_cb'     => \&callback mechanism, with "callback" being a subroutine that used usleep, all I got for my effort was a downloaded file named /content_cb ...hardly the expected behavior. I'm obviously clueless, even after reading the documentation. Given a hint as to how to start this, I'd like to see if anything useful could be done to rate-limit the connection. I spent a few hours playing with it already, but couldn't get past even the first step.

Update: I found a question asked some years ago on SO that posted a code snippet which invoked the ':content_cb' callback, and I tried it. It changes absolutely nothing except that the downloaded file is misnamed (becomes "/content_cb", instead of the .html file that it should be). No change whatsoever in speed, regardless of the number put into "usleep". Adding a print line resulted in nothing as well--no output to the screen, so I don't think the subroutine is actually running, and it seems LWP::UserAgent is conflating the ':content_cb' token for the ':content_file' one.

Blessings,

~Polyglot~

In reply to Re^2: Bandwidth limiting for file downloads: What can Perl do? by Polyglot
in thread Bandwidth limiting for file downloads: What can Perl do? by Polyglot

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