45 lines
738 B
Python
45 lines
738 B
Python
# 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
|