-# -*-pyrex-*-
-#
-# $Id$
-#
-# Cyclic redundancy checker
-#
-# (c) 2005 Straylight/Edgeware
-#
+### -*-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.
+###----- 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:
+ """CRC32(): calculate CRC32 of a stream"""
cdef uint32 _a
- def __new__(me, *hunoz, **hukairz):
+ def __cinit__(me, *hunoz, **hukairz):
me._a = 0
def __init__(me):
pass
def chunk(me, data):
+ """C.chunk(STR): process another chunk of input"""
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):
+ """C.done() -> INT: return CRC of data"""
return _u32(me._a)
def crc32(data):
+ """crc32(STR) -> INT"""
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 --------------------------------------------------