Source

cffi / README.md

ffi

Foreign Function Interface for Python.

Initial motivation

http://mail.python.org/pipermail/pypy-dev/2012-May/009915.html

Current status

  • works as a ctypes replacement
  • can use internally either ctypes or a C extension module

Next steps

the verify() step, which should handle: * completing "...;" structs * checking the other structs, and the arguments to functions, using the real C compiler * simple "#define FOO value" macros * macros of the kind "#define funcname otherfuncname" * more complicated macros "#define foo(a, b, c) ..." * checking and correcting the value of the enum {} declarations * probably also fixing the array lengths, e.g. declared as a field "int foo[...];"

generating C extensions: * this is needed anyway to call macros * faster, libffi-free way to call C code * partial blockers: callbacks (probably still use libffi)

_ffi backend for PyPy