yield, resume and the like

["Matthew Harmon" <matt@...>]

I?m a Lua newbie? but after only 45 minutes I have it doing useful things.
I?m glad simpler is better is still somebody?s mantra out there!  Anyway,
like many others I am using Lua to run game scripts.  As such, I have some
questions that I didn?t see clarified in the archives.  Talking 5.0 here?

  1) Is a coroutine just a Lua wrapper for handling threads?  From the
documentation, I?m not exactly sure if this is the case, but a quick peek at
the code seems to imply this.

  2) Similarly, the documentation implies that only coroutines can be
yielded and resumed.  However, I am yielding and resuming a thread just
fine.  Is this ok?

  3) If I want to have 10 or 20 scripts going at once (usually in a yield
state), I assume I should fire off a new thread for each, and not create a
new Lua state for each?

Many thanks