What is the correct way to interface with C for buffers (IOStream)? Can I just pass the file descriptor using Base.fd? (I don’t see any indications about this on either the IOStream or the ccall doc pages).
My example is even slightly more complicated than this: I am trying to write a wrapper for a C++ library in Julia, through a C interface. In particular, I need to wrap a C++ function which reads from a file (represented as a std::istream parameter). On the C++ side i can build the std::istream from a POSIX file descriptor (using boost). Will this cause problems with buffering?