Re: OT: Re: [Chicken-users] rails-like framework

[Thomas Chust]

On Tue, 25 Apr 2006, Shawn Rutledge wrote:

> [...] Kali seems to be one of the most complete distributed Schemes 
> (even continuations can travel from one machine to another, and be 
> executed there) so doesn't that imply that it has a portable bytecode 
> and portable data structures? [...]

Hello,

as far as I know, the Scheme48 bytecode is portable across architectures, 
yes.

But concerning the serialization especially of continuations in Kali: 
Scheme48 is stack-based. Though, to reduce network load, Kali does not 
transmit the entire stack for a continuation, but only the first few 
frames. The rest is pulled if really needed via a mechanism pretty similar 
to RScheme's persitent object store system, just via network. And I never 
know whether I should consider this kind of page fault magic ingenious or 
horrible. Especially in a network environment where additional 
complicating factors like node failure resistance have to be considered...

cu,
Thomas