chiark / gitweb /
debian: Fix package sections.
[mLib-python] / crc32.pyx
CommitLineData
20bce5e9 1# -*-pyrex-*-
2#
3# $Id$
4#
5# Cyclic redundancy checker
6#
7# (c) 2005 Straylight/Edgeware
8#
9
10#----- Licensing notice -----------------------------------------------------
11#
12# This file is part of the Python interface to mLib.
13#
14# mLib/Python is free software; you can redistribute it and/or modify
15# it under the terms of the GNU General Public License as published by
16# the Free Software Foundation; either version 2 of the License, or
17# (at your option) any later version.
18#
19# mLib/Python is distributed in the hope that it will be useful,
20# but WITHOUT ANY WARRANTY; without even the implied warranty of
21# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22# GNU General Public License for more details.
23#
24# You should have received a copy of the GNU General Public License
25# along with mLib/Python; if not, write to the Free Software Foundation,
26# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27
20bce5e9 28cdef class CRC32:
29 cdef uint32 _a
30 def __new__(me, *hunoz, **hukairz):
31 me._a = 0
32 def __init__(me):
33 pass
34 def chunk(me, data):
35 cdef void *p
36 cdef int n
37 PyObject_AsReadBuffer(data, &p, &n)
38 me._a = c_crc32(me._a, p, n)
39 return me
40 def done(me):
41 return _u32(me._a)
42
43def crc32(data):
44 cdef void *p
45 cdef int n
46 cdef uint32 c
47 PyObject_AsReadBuffer(data, &p, &n)
48 c = c_crc32(0, p, n)
49 return _u32(c)
50
51#----- That's all, folks ----------------------------------------------------