[erlang-questions] simple_one_by_one trouble and rare start_link/2 gen_fsm

[Angel J. Alvarez Miguel]

Hi,

Please see example attached

While calling a simple_one_by_one supervisor to start a gen fsm I found it causes calling a start_link/2 function on the callback module of the gen_fsm. 

I was not able to locate this start_link/2 on the docs and i dont know how Args are suppoused to be joined (those from the childspec on the supervisor and those from the start_child call. 



Erlang R15B01 (erts-5.9.1) [source] [64-bit] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false]

[QuickCheck] [PropEr] [Erl0MQ] 
Eshell V5.9.1  (abort with ^G)
1> test:main().
Starting simple_one_by_one group supervisor...
[GROUP SUP] Ready to manage MuC wuth opts: [{option1,40}]'s

Adding a child dynamically...

start_link called with 2 arguments: [{option1,40}] and [{dynamic_option,43}] this is not documented!!
init fsm with args: []
{ok,<0.34.0>}

Im alive!
Im alive!
Im alive!
Im alive!
Im alive!
Im alive!
FSM terminated (shutdown) after a few iterations on state idle...

2> 

am I wrong or this is not documented (R15B1)?

/Angel



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