Re: Hurd IPC

[Neal H. Walfield]

> There's actually one point that's still not very clear to me about the IPC
> model you described. You said the client would *only* keep the handle. Now, if
> the client does an open on two different servers and both of them return the
> same handle (the same integer), how can the client differentiate between them
> in further communication?

On L4, a handle will be unique to a server which means that the client
must store both the server's communication thread id and the handle
id.  On Mach, a handle would be task local--it is just a normal port
managed by Mach.