MultiThreading Issues & Mutex

Hi,

Has anyone encountered multi-threading issues?

1) Is there a simple Mutex implementation that is possible with ma3 LUA engine?
1.a) Is it worth to try this socket based mutex suggestion?
2) Is it possible to schedule a task (a simple function) to run in the MainTask thread?

Specifically I am tackling with consequtive MIDI events that are handled in different threads.

Thanks

Oh, and it might be coroutines I am talking about, not necessarily real thread.

I managed to get a simple Mutex working using socket.bind().
So far so good...