| # coding: utf-8 |
| |
| """ |
| FFI helper compatibility functions. Exports the following items: |
| |
| - LibraryNotFoundError |
| - FFIEngineError |
| - bytes_from_buffer() |
| - buffer_from_bytes() |
| - null() |
| """ |
| |
| from __future__ import unicode_literals, division, absolute_import, print_function |
| |
| from ctypes import create_string_buffer |
| |
| |
| def buffer_from_bytes(initializer): |
| return create_string_buffer(initializer) |
| |
| |
| def bytes_from_buffer(buffer, maxlen=None): |
| return buffer.raw |
| |
| |
| def null(): |
| return None |
| |
| |
| class LibraryNotFoundError(Exception): |
| |
| """ |
| An exception when trying to find a shared library |
| """ |
| |
| pass |
| |
| |
| class FFIEngineError(Exception): |
| |
| """ |
| An exception when trying to instantiate ctypes or cffi |
| """ |
| |
| pass |
