Actually much simpler than expected.

Jan Moskyto Matejka authored 8 years ago and Ondřej Zajíček committed 8 years ago

There are several unresolved -Wmissing-field-initializers on older
versions of GCC than 5.1, all of them false positive.

When multiple protocols have a lock for the same IP address, it crashes
under some circumstances.

Thanks to Matthias Schiffer for the bugreport.

call ev_schedule() on the same handler which should work perfectly now.

with protocols wanting to use the same port on the same interface
during reconfiguration time.

How to use locks: In the if_notify hook, just order locks for the
interfaces you want to work with and do the real socket opening after the
lock hook function gets called. When you stop using the socket, close
it and rfree() the lock.

Please update your protocols to use the new locking mechanism.