C Interface: working with mapped lists (types 77h+t)

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1

Writing c interface as shared library, i call k(0, “myFunction”, arg, 0);

The resulting value has type 81h (mapped list of bytes), and I don’t know how do I subsequently use kK() and related functions on it (it returns bad pointer (small integer), which is, i suppose, some offset from some origin).

Any official docs/advises? 

Regards,

San.

2

you should gain access to those elements via manufacturing them in the heap through indexing in q, e.g.

to have all elements manufactured at once:

k(0,“(::')myFunction@”,arg,0);

3

But… 

but this is effectively extra (alloc + memcpy)*N, exactly what mmapped lists are not.

I suppose kdb internally handles it properly (accessing without “manufacturing”), and this puts C interface at disadvantage. Correct? Any plans to enhance k.h ?