[erlang-questions] Remote module compilation

[Bengt Kleberg]

Greetings,

In the case of remote loading you have some ways of doing it.

1) Do the computers share the same file system (NFS, etc)?
The you could do:
rpc:call( Node2, code, load, [test] ).

2) If not you have to include the beam file as a binary:
{Module, Binary, Filename} = get_object_code(Module),
rpc:call( Node2, load_binary, [Module, Filename, Binary] ).

See the manual page for the code module
(http://www.erlang.org/doc/man/code.html).


bengt

On Tue, 2009-05-26 at 13:59 +0300, Alin Popa wrote:
> Hi,
> 
> It is possible to send remote a module source and that one to be
> compiled there ? 
> Or, I have a compiled module but is not loaded on the remote process;
> is it possible to send it there, or I should express load it on the
> remote process?
> This is my test module:
> 
> -module(test).
> -export([test_fun/0]).
> 
> test_fun() ->
>    io:format("Hello ~p~n",["World"]).
> 
> 
> now, start one erlang process(on 1st machine):
> 
> erl -name node@REDACTED -setcookie test123
> 
> ... start other erlang process (on 2nd machine):
> erl -name node@REDACTED -setcookie test123
> 
> In 1st node:
> 
> 1> c(test).
> {ok, test}
> 2> 
> 
> In 2nd node, do nothing...
> 
> In the 1st node:
> 
> 2> spawn('node@REDACTED', test, test_fun, []).
> 
> Error in process <0.49.0> on node 'node@REDACTED' with exit value:
> {undef,[{test,test_fun,[]}]}
> 
> (Which is normal, I think)
> 
> 
> So, somewhere in this flow, something like remote module loading can
> be done ?
> 
> Thanks.
> 
> -- 
> Regards,
> 
> Alin
> 
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