Re: Several questions

[Neil Jerram]

>>>>> "Ondrej" == Ondrej 'SanTiago' Zajicek <address@hidden> writes:

    Ondrej> - If thread calls lock-mutex and the mutex is already
    Ondrej> locked, the calling thread blocks until the mutex becomes
    Ondrej> available. But IMHO classic mutex should accept more
    Ondrej> locking from same thread (mutex M owned by thread T
    Ondrej> shouldn't block T's calls lock-mutex M) - it's much more
    Ondrej> useful. So isn't current behaviour a bug (or correct name
    Ondrej> for this object should be lock and not mutex)?

It's definitely not a bug, and I believe that this is the behaviour
defined by pthreads (POSIX threads).  I have no idea whether it's
classic or not :-)

Given a non-recursive mutex (as this behaviour is called), you can
easily implement a recursive mutex (which is what you want).  Do you
need further help in how to do this?

    Ondrej> - Is there any possibility to get thread object (object,
    Ondrej> returned by call-with-new-thread) of actual thread?

I'm not sure.  It looks like there isn't a way in the current code,
but I don't see why there shouldn't be, so perhaps this is a bug.  Why
can't you use the object returned by call-with-new-thread, though?

Regards,
        Neil