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: Forcing curl_multi_perform() to return regularly

From: Ray Satiro via curl-library <>
Date: Sun, 17 Jan 2021 16:55:12 -0500

On 1/17/2021 6:16 AM, Andreas Falkenhahn via curl-library wrote:
> On 15.01.2021 at 16:59 Daniel Stenberg wrote:
>> Using what version? There's a maxloops counter in the
>> transfer.c:readwrite_data() function that's meant to prevent the function from
>> getting stuck "forever".
> BTW, I think a new CURLOPT would be nice here that allows the user to set a timeout value because the hard-coded value of 100 iterations can almost mean "forever" in case the write function won't return until new data is available. It would be much more convenient if it was possible to specify a timeout value after which curl_multi_perform() should return. The hard-coded 100 could still be kept as some sort of default which is used in case no timeout has been set by the user...

Don't wait in the callback.

Received on 2021-01-17