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Re: Multi cURL connect bug

From: Daniel Stenberg <daniel_at_haxx.se>
Date: Sat, 6 Jul 2013 23:24:20 +0200 (CEST)

On Fri, 5 Jul 2013, Keyur Govande wrote:

> Looking at the code it seems like if for example, the protocol connect for
> HTTPS didn't finish quickly enough, curl_multi_perform() will return
> CURLM_CALL_MULTI_PERFORM.

No, that's reading it a bit wrong. First off, curl_multi_perform() doesn't
even return that return code since a few years back!

Then, libcurl has always only returned the CURLM_CALL_MULTI_PERFORM return
code when there was actually something more for libcurl to do. It would never
return that simply because an operation wasn't completed.

> I'm proposing that this edge-case is the same as not finishing a TCP
> connect() and both should be handled similarly.
>
> My goal is to be able to make an asynchronous RPC with curl. If there are
> other ways to accomplish this, please do let me know. From my point of view,
> the library is 99.9% of the way there in supporting this behavior, except
> for this one corner case around the TCP connection.

I don't understand why you need to know those libcurl state transitions just
to make asynchronous operations!

-- 
  / daniel.haxx.se
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Received on 2013-07-06