Bugs item #470606, was opened at 2001-10-12 08:08
You can respond by visiting:
http://sourceforge.net/tracker/?func=detail&atid=100976&aid=470606&group_id=976

Category: libcurl
Group: bad behaviour
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Daniel Stenberg (bagder)
Summary: speedcheck fails => undef contentlength

Initial Comment:
% curl -V
curl 7.9 (i686-pc-linux-gnu) libcurl 7.9 (ipv6 enabled)

In transfer.c,function Transfer():
...
urg = Curl_speedcheck(data,now)
if(urg)
 return(urg)
...

If the speedcheck fails (ie.: the operation is too
slow), it returns CURLE_OPERATION_TIMEOUTED, and this
goes up to Transfer(), then to Curl_Perform(), finnaly
to curl_easy_perform.

The problem (i think) is that conn->bytecountp is not
set in this case.

That is a real problem because if you give a
CURLOPT_FILE to libcurl, then curl_easy_perform already
wrote to that file, and there is no (clean) way to know
how many bytes it wrote.

By the way, i think that *maybe* it should return
CURLE_PARTIAL_FILE if the connection gets to slow.

------
I'm using curl as part of my PhD thesis in computer
science, i'm in the early stages experimenting with
scheduling policies with a web crawler. I found this
misbehavior because in web crawlers it's very important
to reschedule web pages if they get too slow, because
web servers have a rather high variance in service time.

I first wanted to use libwww but stupidly it's not
MTsafe. Then i found curl and think it's great. Thanks you.
I

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You can respond by visiting:
http://sourceforge.net/tracker/?func=detail&atid=100976&aid=470606&group_id=976
Received on 2001-10-12