Adds a new api lws_vhost_destroy(struct lws_vhost *) which allows dynamic removal of vhosts.
The external api calls two parts of internal helpers that get reused for context destroy.
The second part is called deferred by 5s... this is to ensure that event library objects
composed into structs owned by the vhost all have a chance to complete their close
asynchronously. That should happen immediately, but it requires us to return to the
event loop first.
The vhost being removed is deleted from the context vhost list by the first part, and does
not block further removals or creation during the delay for the deferred freeing of the
vhost memory.
Part 1:
- if the vhost owned a listen socket needed by other vhosts listening on same iface + port, the listen
socket is first handed off to another vhost so it stays alive
- all wsi still open on the vhost are forcibly closed (including any listen socket still attached)
- inform all active protocols on the vhost they should destroy themselves
- remove vhost from context vhost list (can no longer be found by incoming connections)
- add to a "being destroyed" context list and schedule the second part to be called in 5s
Part 2:
- remove us from the being destroyed list
- free all allocations owned by the vhost
- zero down the vhost and free the vhost itself
In libwebsockets-test-server, you can send it a SIGUSR1 to have it toggle the creation and destruction of
a second vhost on port + 1.
Basically we support openssl api compatibles only.
If we ever try something different we need a shim making it openssl api or a proper abstraction layer added first.
https://github.com/warmcat/libwebsockets/issues/526
On master, cleanups and refactor mean the last two problems already
don't exist (array is gone from main.c and http.c is deleted)
Signed-off-by: Andy Green <andy@warmcat.com>
If OOT lws plugins will be packaged as separate projects,
they're going to want to install their plugins somewhere
that makes sense for the package instead of one big lws
plugin dir.
This patch changes info to have a const char ** to a NULL
terminated array of directories it should search for
plugins. lwsws knows about this and you can add to the
dir array using config fragments like
{
"global": {
"plugin-dir": "/usr/local/share/coherent-timeline/plugins"
}
}
if the config fragment in /etc/lwsws/conf.d/ is also managed by the
package with the plugin, it can very cleanly add and remove itself
from lwsws based on package install status.
Signed-off-by: Andy Green <andy@warmcat.com>
Move the dummy stub protocol into the library as the default
if NULL protocols given, since that is likely to become popular.
Signed-off-by: Andy Green <andy@warmcat.com>
No dependency on test-server.h (just libwebsockets.h and getopt.h / syslog.h)
No need for any user callback code and all in one short file.
Signed-off-by: Andy Green <andy@warmcat.com>
