Re: Signals, messages and exceptions

[Igor Khavkine]

On Sat, Jul 07, 2001 at 05:40:03PM -0400, Roland McGrath wrote:
> Yes, sorry for the short response.  That was before the coffee.
> 
> I don't really know how to answer your message, since it wasn't quite clear
> what the question was.  Were you suggesting that Hurd signals should work
> by sending exception_raise messages to task or thread exception ports?

Yes, that is what I was getting at. Signals and interrupts are
a very old concept, and I've always thought that exceptions are
a more evolved version of the same concept. So it would make
sense to use a more versatile feature to implement a less versatile
one, if they are of similar nature.

You suggested, that I was confused about the purpose of exceptions
in Mach. Maybe I am, what is your take on this topic?

Igor