X-Git-Url: https://git.distorted.org.uk/~mdw/mLib-python/blobdiff_plain/579d01693c86259110fe7a2c2a6f005f1bdbad5b..HEAD:/unihash.pyx diff --git a/unihash.pyx b/unihash.pyx index b1cb979..8ededb0 100644 --- a/unihash.pyx +++ b/unihash.pyx @@ -1,48 +1,50 @@ -# -*-pyrex-*- -# -# $Id$ -# -# Universal hashing interface -# -# (c) 2005 Straylight/Edgeware -# +### -*-pyrex-*- +### +### Universal hashing interface +### +### (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. def setglobalkey(uint32 k): + """setglobalkey(K): set global hash key""" unihash_setkey(&unihash_global, k) cdef class Key: + """Key(K): universal hashing key""" cdef unihash_info _i cdef uint32 _k - def __new__(me, uint32 k): + def __cinit__(me, uint32 k): unihash_setkey(&me._i, k) me._k = k property k: + """K.k -> INT: the key value""" def __get__(me): return _u32(me._k) cdef class Unihash: + """Unihash([key = None]): universal hashing context""" cdef uint32 _a cdef readonly Key key cdef unihash_info *_i - def __new__(me, key = None): + def __cinit__(me, key = None): cdef Key k me.key = key if key is None: @@ -52,11 +54,13 @@ cdef class Unihash: me._i = &k._i me._a = UNIHASH_INIT(me._i) def chunk(me, data): + """U.chunk(STR): hash the STR""" cdef void *p - cdef int n - PyObject_AsReadBuffer(data, &p, &n) + cdef Py_ssize_t n + PyObject_AsReadBuffer(data, &p, &n) me._a = unihash_hash(me._i, me._a, p, n) def done(me): + """U.done() -> INT: the hash of the data""" return _u32(me._a) -#----- That's all, folks ---------------------------------------------------- +###----- That's all, folks --------------------------------------------------