mod_smacks: Increment a counter for each resumption
Encountered what looks like a bug where after *many* resumptions, part
of the queue was not acked.
For full information on our dependencies, version requirements, and
where to find them, see https://prosody.im/doc/depends
If you have luarocks available on your platform, install the following:
- luaexpat
- luasocket
- luafilesystem
- luasec