Re: [Nmh-workers] Locking (specifically, sequences)

[Lyndon Nerenberg]

> > if "the MH way" could expand to C89 and posix threads, we'd have some
> > options that were both performance and correct.
>
> I think we already assume C89 as a minimum.  However, I'm not sure I want
> to jump off the threads cliff just yet :-/

The cheap hack way out of this is to set up a select() loop, create a 
pipe(), set a timer, then do the lock.  If the alarm fires, write a byte 
down the pipe from the signal handler which triggers a return from the 
select(), and a lookup of the returned FD tells you "timeout!"

No, really.

--lyndon