FFI Design

NGS FFI Design

Requirements

• Support FFI calls
• Must be cross-platform ready

Design

• FFI namespace for generic/base FFI functionality
• FFI::libffi namespace for the libffi library
• As with other NGS components, the amount of C code that deals with FFI should be minimal, as much as possible should be in NGS.

TODO / Open Issues

• libffi does not cover Windows
• Errors handling / exceptions
• How to import constants from libraries? Are they only mentioned in *.h files?

Resources

• https://sourceware.org/libffi/
• https://docs.python.org/3/library/ctypes.html
• https://github.com/node-ffi/node-ffi/blob/master/src/ffi.cc