From: Christophe TROESTLER <Christophe.Troestler@umh.ac.be>
To: "O'Caml Mailing List" <caml-list@inria.fr>
Subject: Alternative allocation of bigarrays
Date: Sun, 20 Feb 2005 20:38:13 +0100 (CET) [thread overview]
Message-ID: <20050220.203813.26280962.Christophe.Troestler@umh.ac.be> (raw)
Hi,
I am interfacing OCaml with a C library that needs special allocation
functions for full speed (for alignment reasons). I am wondering
about the best course to follow to create bigarrays with these new
malloc/free functions.
What I am doing now is to define a special "bigarray_create" based on
a spacial "alloc_bigarray" using tailored custom_operations.
Specifically, "alloc_bigarray" uses the new malloc and
"bigarray_finalize" of the "custom_operations" use the new free. So
far I suppose there is no problem and they can share the OCaml
Bigarray types. However I also changed the "custom_operations"'s
"identifier" and "bigarray_deserialize" so these bigarrays are
deserialized with the new malloc. Can I still use the standard
bigarray types with these new arrays ? (I would guess so but I'd like
a confirmation here.)
Also, if better approaches are possible, I will be happy to know them.
(The current solution requires to duplicate a lot of bigarray.c code.)
Regards,
ChriS
reply other threads:[~2005-02-20 19:38 UTC|newest]
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