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sha1dc: use buffer protocol when parsing arguments...
sha1dc: use buffer protocol when parsing arguments Without this, functions won't accept bytearray, memoryview, or other types that can be exposed as bytes to the C API. The most resilient way to obtain a bytes-like object from the C API is using the Py_buffer interface. This commit converts use of s#/y# to s*/y* and uses Py_buffer for accessing the underlying bytes array. I checked how hashlib is implemented in CPython and the the implementation agrees with its use of the Py_buffer interface as well as using BufferError in cases of bad buffer types. Sadly, there's no good way to test for ndim > 1 without writing our own C-backed Python type. Differential Revision: https://phab.mercurial-scm.org/D7879

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xdiffi.h
58 lines | 1.6 KiB | text/x-c | CLexer
/*
* LibXDiff by Davide Libenzi ( File Differential Library )
* Copyright (C) 2003 Davide Libenzi
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*
* Davide Libenzi <davidel@xmailserver.org>
*
*/
#if !defined(XDIFFI_H)
#define XDIFFI_H
typedef struct s_diffdata {
int64_t nrec;
uint64_t const *ha;
int64_t *rindex;
char *rchg;
} diffdata_t;
typedef struct s_xdalgoenv {
int64_t mxcost;
int64_t snake_cnt;
int64_t heur_min;
} xdalgoenv_t;
typedef struct s_xdchange {
struct s_xdchange *next;
int64_t i1, i2;
int64_t chg1, chg2;
int ignore;
} xdchange_t;
int xdl_recs_cmp(diffdata_t *dd1, int64_t off1, int64_t lim1,
diffdata_t *dd2, int64_t off2, int64_t lim2,
int64_t *kvdf, int64_t *kvdb, int need_min, xdalgoenv_t *xenv);
int xdl_do_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
xdfenv_t *xe);
int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, int64_t flags);
int xdl_build_script(xdfenv_t *xe, xdchange_t **xscr);
void xdl_free_script(xdchange_t *xscr);
#endif /* #if !defined(XDIFFI_H) */