You might check out idel too. It was designed with security in mind from the beginning, and to be easy to compile instead of interpret (so it does have a separation of code and data). OTOH it's not under active development and too underfeatured to be very useful as is -- no C compiler, for example.
I'm working on something related right now. The most important difference is there's no central work server; instead the concentration is on basic support for safe mobile code and resource control, so different groups could use it. Mojo Nation looks like the most promising system for handling the cpu-time trading, so far.
What I do have working now is a portable virtual machine with a sandbox controlling cpu and memory use. The biggest jobs remaining are a C compiler backend and a code generator for x86. (Currently it has only a threaded-code interpreter.)
Oh, and it's free software, of course. I wasn't planning on releasing it quite yet, but it would kind of suck if someone started a similar project without knowing about this (or if someone already did, and I'm the one duplicating effort). Email me if you're interested.
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You might check out idel too. It was designed with security in mind from the beginning, and to be easy to compile instead of interpret (so it does have a separation of code and data). OTOH it's not under active development and too underfeatured to be very useful as is -- no C compiler, for example.
I'm working on something related right now. The most important difference is there's no central work server; instead the concentration is on basic support for safe mobile code and resource control, so different groups could use it. Mojo Nation looks like the most promising system for handling the cpu-time trading, so far.
What I do have working now is a portable virtual machine with a sandbox controlling cpu and memory use. The biggest jobs remaining are a C compiler backend and a code generator for x86. (Currently it has only a threaded-code interpreter.)
Oh, and it's free software, of course. I wasn't planning on releasing it quite yet, but it would kind of suck if someone started a similar project without knowing about this (or if someone already did, and I'm the one duplicating effort). Email me if you're interested.
--Darius Bacon (darius@smop.com)