On 7/5/2016 9:19 AM, risto via curl-library wrote:
> What are the possible ways to clear cURL connection cache? One way
> would be to close the current multi handle and open a new one. Are
> there some other options? I've got a situation where connection cache
> is kept through internet connection change (Wifi -> 3G for example).
> After network change cURL will try to reuse the connection from cache
> and will fail and open a new connection. The problem is that it takes
> ~20 seconds to understand that the connection was dead. Are there any
> ways to overcome this? I'd still like to reuse connections when
> possible. I could force requests with CURLOPT_FRESH_CONNECT after
> network change for some time but that's not ideal.

As far as I know there's no way to clear the connection cache. You could
change handles as you mentioned.

If the connection dies libcurl opens a new one as your output shows. I
don't think there's anything it can do about this if recv does not error
for 20 seconds and you don't want to disable connection reuse.
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Received on 2016-07-05