Author: Amos Jeffries <squid3@treenet.co.nz>, Christos Tsantilas <chtsanti@users.sourceforge.net>
Add DNS lookup step to ICAP connect
This patch add an async DNS lookup step to the ICAP connection setup process.
As a side effect it adds a little bit of tcp_outgoing_address support to ICAP.
Its limited to "dst" ACL at present. So outgoing ACL selections depending on
HTTP request details wont work. Which makes sense since this connection may
be reused for multiple requests.
More than one IP result are not used since there seems to be no sane place
to store multiple IPs between connect attempts. It currently relies on ipcache
MarkGood/MarkBad keeping a good usable IP at the top of the IP set.
This patch also try to make Max-Connections ICAP feature cooperate well with
the new DNS lookup code
projects / thirdparty / squid.git / commit
