From the docs and  John Benidiktsson's blog:

http://re-factor.blogspot.com

"fun with wav"

I have learn quite a bit about the FFI. However if someone could guide 
me, I just want to make sure I have a sensible design pattern for it.

My application is control of scientific instruments. The I/O functions 
are short lived but each call is important, I don't want to miss data 
points.

I was thinking that if factor could write to a C struct then a hardware 
control daemon in C could run I/O functions in a loop that would take 
arguments from the struct and factor would only guide the daemon from 
the struct.

  Does this sound sensible? Is there anything that might cause factor to 
block the C functions if it was only accessing the struct?

Thanks for reading-Patrick

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