izinin / ecport_experiments

this is for self study erlang c-ports (https://www.erlang.org/doc/tutorial/c_port#c-program)

c_port

• activate Kerl :. /home/izinin/kerl/installations/21.3.8.24/activate
• compile: gcc -o extprg complex.c erl_comm.c port.c worker.c
• Start Erlang and compile the Erlang code:

unix> erl
Erlang (BEAM) emulator version 4.9.1.2

Eshell V4.9.1.2 (abort with ^G)
1> c(complex1).
{ok,complex1}

• Run the example:

2> complex1:start("./extprg").
<0.34.0>
3> complex1:foo(3).
4
4> complex1:bar(5).
10
5> complex1:stop().
stop

T = erlang:ports().
erlang:port_info(lists:nth(4,T)).
erlang:port_close(lists:nth(4,T)).