Call (or send event) erlang function from C app/library -

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i have application , library interacts low-level hardware protocols. i'm writing erlang application fast parsing of data , send distributed databases. however, i'm newbie @ erlang , i've stuck @ simple thing: efficient way connect c library(or application) erlang , how notify erlang block of data ready processing (e.g. how call erlang function c library or trigger event)? time important here, , shall use -- simple ports, driver ports or nifs? or there better ways solving task?

as option, can run c application hidden erlang node using erl_interface lib. http://www.erlang.org/doc/apps/erl_interface/ei_users_guide.html#id56593 . , send messages real erlang node http://www.erlang.org/doc/apps/erl_interface/ei_users_guide.html#id60866, or use rpc - remote proc calls perform http://www.erlang.org/doc/apps/erl_interface/ei_users_guide.html#id57714


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