If it's heterogeneous data I tend to use blobs with helper functions to
cast segments to records without undertaking a copy.
https://wiki.call-cc.org/man/4/Unit%20library#blobs
If it's homogenous data then the srfi-4 unit provides all sorts of
vectors that you can use.
https://wiki.call-cc.org/man/4/Unit%20srfi-4
Keep in mind that foreign-lambdas will take blob and srfi-4 vectors as
parameter types and convert them to their relevant C types without
undertaking a copy.
https://wiki.call-cc.org/man/4/Accessing%20external%20objects
-Dan
On 5/3/2013 11:04 AM, Pedro Melendez wrote:
Hi all,
Sorry if this question is obvious, but I couldn't find what I were
looking for in the documentation so maybe you guys can help me.
I am developing a prototype of a server that would serve 3D seismic
images across the network. This task requires to process big files
(~4 GB) with existing C code that is desirable to maintain. I plan to
write the server itself in Chicken scheme but I would need to maintain
the existing code in C that opens and process those files.
Giving the size of the file, I want to share the memory space between
C and Chicken and avoid copying values between areas. Is that even
possible? Anyone has an idea on how can I address this?
Thanks in advance!
Pedro
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T: +1 (416) - 357.5356
Skype ID: pmelendezu
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