On Fri, Jul 03, 2015 at 10:34:56AM +0800, Vincent Chen wrote:
> Thanks!
> now I need to create IPv6 & IPv4 socket for Happy Eyeball.
>
> One more question,
> I found curl doesn't cache successful connection for future uses.
> Do I need to set any options for Happy Eyeball cache?

curl should cache the connections automatically for future use. Under what
scenario is that not working for you?

>>> Dan

>
> 2015-07-02 14:16 GMT+08:00 Dan Fandrich <dan_at_coneharvesters.com>:
>
> On Thu, Jul 02, 2015 at 09:59:05AM +0800, Vincent Chen wrote:
> > I'm developing a HTTP client with multi interface and have some questions
> when
> > domain name look up has both IPv6 & IPv4 address
> >
> > [Question1]
> > I implement the opensocket call back to create socket by myself and
> monitor
> > socket event.
> >
> > and found the callback will be called twice.
> >
> > First callback is for IPv6 and the second callback is for IPv4.
>
> This behaviour is called "Happy Eyeballs" and is covered by RFC6555.
>
> >>> Dan
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Received on 2015-07-03