pypy comes with normal hashlib. it just works like cpython one.
On Fri, Nov 8, 2013 at 10:55 AM, KaShining <mail2sh...@qq.com> wrote: > ok. > Can i see any demo code about hashlib-pypy ?? > > > ------------------ 原始邮件 ------------------ > 发件人: "Maciej Fijalkowski";<fij...@gmail.com>; > 发送时间: 2013年11月8日(星期五) 下午4:51 > 收件人: "KaShining"<mail2sh...@qq.com>; > 抄送: "pypy-dev"<pypy-dev@python.org>; > 主题: Re: 回复： [pypy-dev] fail about resumable hashlib code under pypy > > this can work, but these days we have implemented hashlib differently., why? > > On Fri, Nov 8, 2013 at 10:49 AM, KaShining <mail2sh...@qq.com> wrote: >> Maybe this way can work: >> >> https://bitbucket.org/pypy/pypy/src/cli-jit/pypy/lib/_hashlib.py?at=cli-jit >> >> >> ------------------ 原始邮件 ------------------ >> 发件人: "Maciej Fijalkowski";<fij...@gmail.com>; >> 发送时间: 2013年11月8日(星期五) 下午4:47 >> 收件人: "KaShining"<mail2sh...@qq.com>; >> 抄送: "pypy-dev"<pypy-dev@python.org>; >> 主题: Re: [pypy-dev] fail about resumable hashlib code under pypy >> >> PyPy objects are not implemented like this. This is an evil and >> atrocious hack to get the refcount and pyobjects stuff from python >> level using ctypes. works only on cpython. >> >> On Fri, Nov 8, 2013 at 10:02 AM, KaShining <mail2sh...@qq.com> wrote: >>> Here is my test.py about resumable-hashlib: >>> >>> from ctypes import * >>> import hashlib >>> >>> PyObject_HEAD = [ >>> ('ob_refcnt', c_size_t), >>> ('ob_type', c_void_p), >>> ] >>> >>> class EVP_MD(Structure): >>> _fields_ = [ >>> ('type', c_int), >>> ('pkey_type', c_int), >>> ('md_size', c_int), >>> ('flags', c_ulong), >>> ('init', c_void_p), >>> ('update', c_void_p), >>> ('final', c_void_p), >>> ('copy', c_void_p), >>> ('cleanup', c_void_p), >>> ('sign', c_void_p), >>> ('verify', c_void_p), >>> ('required_pkey_type', c_int*5), >>> ('block_size', c_int), >>> ('ctx_size', c_int), >>> ] >>> >>> class EVP_MD_CTX(Structure): >>> _fields_ = [ >>> ('digest', POINTER(EVP_MD)), >>> ('engine', c_void_p), >>> ('flags', c_ulong), >>> ('md_data', POINTER(c_char)), >>> ] >>> >>> class EVPobject(Structure): >>> _fields_ = PyObject_HEAD + [ >>> ('name', py_object), >>> ('ctx', EVP_MD_CTX), >>> ] >>> >>> #import string >>> >>> # str4096 = random_str(4096) >>> str4096 = 'sssss' >>> >>> hash2 = hashlib.sha1() >>> c_evp_obj = cast(c_void_p(id(hash2)), POINTER(EVPobject)).contents >>> ctx = c_evp_obj.ctx >>> digest = ctx.digest.contents >>> state = ctx.md_data[:digest.ctx_size] >>> #print digest.ctx_size >>> >>> Pass in cpython while fail in pypy: >>> >>> Traceback (most recent call last): >>> File "app_main.py", line 72, in run_toplevel >>> File "t.py", line 49, in <module> >>> digest = ctx.digest.contents >>> File "/opt/pypy2.1/lib_pypy/_ctypes/pointer.py", line 83, in >>> getcontents >>> raise ValueError("NULL pointer access") >>> ValueError: NULL pointer access >>> >>> >>> >>> >>> _______________________________________________ >>> pypy-dev mailing list >>> pypy-dev@python.org >>> https://mail.python.org/mailman/listinfo/pypy-dev >>> _______________________________________________ pypy-dev mailing list pypy-dev@python.org https://mail.python.org/mailman/listinfo/pypy-dev
