EM::Rserve is an attempt to bring RServe over EventMachine. Consider it a somewhat stable version.

EM::Rserve is pure-ruby and should work wherever EventMachine is supported.

So far it can:

• connect to a server

• detach and reattach a session

• parse most low-level messages

• parse most R’ S-expressions to a ruby tree

• translate several common R’ S-expressions to “base” ruby objects such as arrays, strings, hashes …

• translate several Ruby objects (arrays of integers, strings etc.) to R’ S-expression

• evaluate strings of R code

• handle pools of connections with ruby fibers

Limitations:

• no support for the connections with a password. somehow, password without encryption defeats the purpose. hence, if you need a password, you should setup an SSH proxy instead

Links:

• www.r-project.org/

• www.rforge.net/Rserve/

• rubyeventmachine.com/

Contributions welcome.