erl-interface - ing type question
Mon Mar 3 13:28:22 CET 2003
Well, since you are using the older erl_interface API, I offer two
- Upgrade your code to ei. See the Erl_Interface Library Reference
and look at the ei and ei_connect functions, they have string
handling functions builtin.
- Use binaries. Use list_to_binary/1 in Erlang to build up the
binary and sent it to your process, and use ERL_BIN_SIZE(t)
to discover the string length, and ERL_BIN_PTR(t) to get to the
string. You should be able to copy it out to a char* and use
it as is. Note that it won't be null byte terminated.
DANIESC SCHUTTE <> wrote:
> Thanks for the information so far
> The only question now remains, as we have all the data in lists
> internally and need to pass it to the driver - what can be used
> to "receive" lists in c code, instead of ERL_ATOM_PTR - since the
> information in erlang will either have to be converted from list to
> atom - NOT GOOD - or I need to receive it in a list/s.
Chicken Little was right.
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