This patch splits out some lws_context members into a new lws_vhost struct.
- ssl state and options per vhost
- SSL_CTX for serving and client per vhost
- protocols[] per vhost
- extensions[] per vhost
lws_context maintains a linked list of lws_vhosts.
The same lws_context_creation_info struct is used to regulate both the
context creation and to create vhosts: for backward compatibility if you
didn't provide the new LWS_SERVER_OPTION_EXPLICIT_VHOSTS option, then
a default vhost is created at context creation time using the same info
data as the context itself.
If you will have multiple vhosts though, you should give the
LWS_SERVER_OPTION_EXPLICIT_VHOSTS option at context creation time,
create the context first and then the vhosts afterwards using
lws_create_vhost(contest, &info);
Although there is a lot of housekeeping to implement this change, there
is almost no additional overhead if you don't use multiple vhosts and
very little api impact (no changes to test apps).
Signed-off-by: Andy Green <andy@warmcat.com>
