[erlang-questions] need to call erl_init_marshal () ?

Paul Mineiro <>
Sat May 31 20:43:57 CEST 2008


re: erl_compare_ext () to compare binaries in erlang term order in a
linked-in driver.

i got this working but it was very tricky, basically calling erl_init ()
from a linked-in driver does not work, but otherwise erl_compare_ext () is
silently broken, not in a crashing way, but in a "i claim to be a
comparison function but i'm not antisymmetric" way, which leads to bizarre
behaviour when used as the comparison function for tree lookup.

it turns out the thing to call is erl_init_marshal (), which is not
exported in any header so you have to declare it yourself (extern) and
then call it from the init hook of your linked-in driver.  and to know
that, you'd have to crawl through source code (or maybe now, find this
message via search engine).

is there a better way?

thanks,

-- p



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