-# -*-pyrex-*-
-#
-# $Id$
-#
-# Cyclic redundancy checker
-#
-# (c) 2005 Straylight/Edgeware
-#
-
-#----- Licensing notice -----------------------------------------------------
-#
-# This file is part of the Python interface to mLib.
-#
-# mLib/Python is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# mLib/Python is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with mLib/Python; if not, write to the Free Software Foundation,
-# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-cdef extern from 'mLib/crc32.h':
- ctypedef int uint32
- uint32 c_crc32 "crc32" (uint32 a, void *p, int sz)
-
-cdef extern from 'limits.h':
- enum:
- LONG_MAX
-
-cdef extern from 'Python.h':
- int PyObject_AsReadBuffer(obj, void **buf, int *len) except -1
- PyInt_FromLong(long i)
- PyLong_FromUnsignedLong(unsigned long i)
-
-cdef _u32(uint32 x):
- if x < LONG_MAX:
- return PyInt_FromLong(x)
- else:
- return PyLong_FromUnsignedLong(x)
+### -*-pyrex-*-
+###
+### Cyclic redundancy checker
+###
+### (c) 2005 Straylight/Edgeware
+###
+
+###----- Licensing notice ---------------------------------------------------
+###
+### This file is part of the Python interface to mLib.
+###
+### mLib/Python is free software; you can redistribute it and/or modify
+### it under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 2 of the License, or
+### (at your option) any later version.
+###
+### mLib/Python is distributed in the hope that it will be useful,
+### but WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+### GNU General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with mLib/Python; if not, write to the Free Software Foundation,
+### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
cdef class CRC32:
cdef uint32 _a
- def __new__(me, *hunoz, **hukairz):
+ def __cinit__(me, *hunoz, **hukairz):
me._a = 0
def __init__(me):
pass
def chunk(me, data):
cdef void *p
- cdef int n
- PyObject_AsReadBuffer(data, &p, &n)
+ cdef Py_ssize_t n
+ PyObject_AsReadBuffer(data, <cvp *>&p, &n)
me._a = c_crc32(me._a, p, n)
return me
def done(me):
def crc32(data):
cdef void *p
- cdef int n
+ cdef Py_ssize_t n
cdef uint32 c
- PyObject_AsReadBuffer(data, &p, &n)
+ PyObject_AsReadBuffer(data, <cvp *>&p, &n)
c = c_crc32(0, p, n)
return _u32(c)
-#----- That's all, folks ----------------------------------------------------
+###----- That's all, folks --------------------------------------------------