Erjang
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Transcript of Erjang
Jéferson Machado So#ware Design
Social network informa0on
http://twitter.com/jefersonm http://facebook.com/jefe.machado
https://github.com/jefersonm/ http://slideshare.net/jefersonm
JVM Container
Kresten Krab Thorup
CTO – Responsible for technical strategy, researching future technologies, and JAOO and Qconconferences.
GCC
GNU Objective-C
gcj
Objective-C
Benchmarks
Erlang file
console
File system
Does it work ? • It can boot Erlang/OTP to the Eshell (ej command). • There's a GUI console (ejc command) which supports ^G and line edi0ng.
The console s0ll needs some work [Swing wizards welcome here]. • Run Erlang distribu0on, tcp/ip, port commands (stdio to external
processes). • You can run the compiler (c(foo) command in the prompt) • It runs mnesia with distribu0on across Erjang/BEAM nodes. • The HTTP packet parsers are in the tcp/ip stack, so mochiweb and
webmachine can run (without crypto for now). • Larger systems like rabbitmq and riak can boot; and works for basic
cases ... but it's not ready for prime 0me yet. • Etc. etc. Lot's of stuff work.
BUT!!! • A few BEAM instruc0on are missing some run0me support.
• There are also BIFs missing, or only par0ally implemented; we're quite careful to throw @erjang.NotImplemented@ in BIFs (or branches thereof) which are not complete.
• Many OTP modules need NIFs or linked-‐in drivers that are en0rely missing or only partly implemented.
References
• https://github.com/trifork/erjang
• http://www.infoq.com/presentations/Erjang-A-JVM-
based-Erlang-VM
• http://www.javalimit.com/2009/12/erjang-why.html
• http://learnyousomeerlang.com/contents
Questions ???
Jéferson Machado So#ware Design
Social network informa0on
http://twitter.com/jefersonm http://facebook.com/jefe.machado
https://github.com/jefersonm/ http://slideshare.net/jefersonm