that purpose.

Add a delay after setting parameters to allow acceptor thread to pick them up.

Add a delay in c1 after receiving result to allow time for any fail causing
fetches from s2

never be reached.

Split out the param settings, so we can see the previous values.

Fixes: #1222

foo

Fixes #1258

It's in it's own file now, based on the VCL manpage.

shadowing).

client has closed the connection and gone away. If so, release the
session early.

Fixes: #1252

This will help in determining remote hang up of the connection for
situations where we still are not able to send any reply, but freeing
the session will reduce resource overhead (e.g. when staying on
waitinglists for extended periods).

On platforms that support it also add runtime parameters to control
the keep-alive packet settings through socket options. On platforms
that don't support these socket options, the values must be set system
wide.

The Varnish runtime parameters will only be applied when they are less
than the system default.