curl / Mailing Lists / curl-library / Single Mail
Buy commercial curl support from WolfSSL. We help you work out your issues, debug your libcurl applications, use the API, port to new platforms, add new features and more. With a team lead by the curl founder himself.

Re: Sending a largish POST request with --limit-rate delays receiving of small server response

From: Fabian Keil via curl-library <curl-library_at_cool.haxx.se>
Date: Fri, 26 Mar 2021 15:29:08 +0100

Fabian Keil via curl-library <curl-library_at_cool.haxx.se> wrote on 2021-03-26:

> Daniel Stenberg <daniel_at_haxx.se> wrote on 2021-03-26:
>
> > On Fri, 26 Mar 2021, Fabian Keil via curl-library wrote:
> >
> > > Apparently the rate limit only kicks in after the request has been
> > > sent and as a result the (small) response is then received delayed.
>
> > Proposed fix: https://github.com/curl/curl/pull/6797
>
> Thanks for the quick fix.

Looks like there's a regression.

If the --limit-rate value is smaller than the CONNECT request
curl now hangs after the first write until Privoxy's connection
timeout is triggered:

fk_at_t520 ~ $~/git/curl/src/curl --trace - --trace-time --limit-rate 50 https://www.electrobsd.org/
15:26:14.242400 == Info: STATE: INIT => CONNECT handle 0x8030d3808; line 1634 (connection #-5000)
15:26:14.243155 == Info: Uses proxy env variable https_proxy == 'http://127.0.1.1:8118/'
15:26:14.243242 == Info: Added connection 0. The cache now contains 1 members
15:26:14.243301 == Info: family0 == v4, family1 == v6
15:26:14.243349 == Info: Trying 127.0.1.1:8118...
15:26:14.243521 == Info: STATE: CONNECT => CONNECTING handle 0x8030d3808; line 1695 (connection #0)
15:26:14.243755 == Info: Connected to 127.0.1.1 (127.0.1.1) port 8118 (#0)
15:26:14.243791 == Info: STATE: CONNECTING => TUNNELING handle 0x8030d3808; line 1825 (connection #0)
15:26:14.243819 == Info: allocate connect buffer!
15:26:14.243847 == Info: Establish HTTP proxy tunnel to www.electrobsd.org:443
15:26:14.243989 => Send header, 50 bytes (0x32)
0000: 43 4f 4e 4e 45 43 54 20 77 77 77 2e 65 6c 65 63 CONNECT www.elec
0010: 74 72 6f 62 73 64 2e 6f 72 67 3a 34 34 33 20 48 trobsd.org:443 H
0020: 54 54 50 2f 31 2e 31 0d 0a 48 6f 73 74 3a 20 77 TTP/1.1..Host: w
0030: 77 77 ww
15:26:34.318527 == Info: Proxy CONNECT aborted
15:26:34.318589 == Info: CONNECT phase completed!
15:26:34.318638 == Info: The cache now contains 0 members
15:26:34.318673 == Info: Closing connection 0
curl: (56) Proxy CONNECT aborted

Fabian


-------------------------------------------------------------------
Unsubscribe: https://cool.haxx.se/list/listinfo/curl-library
Etiquette: https://curl.se/mail/etiquette.html
Received on 2021-03-26