[cap-talk] Piping capability communication, data vs. descriptor capability strengths

[Bill Frantz]

capability at webstart.com (Jed Donnelley) on Friday, February 27, 2009 wrote:

>Have there ever been such systems (e.g. E, 
>KeyKos/EROS/Coyotos/CapROS, etc.) that can effectively "pipe" 
>communication streams between running programs that include 
>capabilities?  Perhaps supporting something like the Unix shell 
>piping syntax, but including capabilities in the communication for 
>tinker toy connections between working modules?

KeyKOS could link two domains together in a coroutine linkage
<http://www.cap-lore.com/CapTheory/KK/m/180.html#coroutine>. This linkage
permitted both data and keys to be passed on every invocation.

The New Command System had pipe syntax
<http://www.cap-lore.com/CapTheory/KK/m/166.html> (see under heading "Pipe
Syntax") which made it easy to set up these linkages.

Cheers - Bill

-----------------------------------------------------------------------
Bill Frantz        | There are also no libertar-  | Periwinkle
(408)356-8506      | ians in financial crises.    | 16345 Englewood Ave
www.pwpconsult.com |               - Jeff Frankel | Los Gatos, CA 95032