view mercurial/thirdparty/xdiff/xutils.h @ 44450:7d5455b988ec stable

discovery: avoid wrong detection of multiple branch heads (issue6256)

This fix the code using obsolescence markers to remove "to be obsoleted" heads
during the detection of new head creation from push. The code turned out to not
use the branch information at all. This lead changeset from different branch to
be detected as new head on unrelated branch.

The code fix is actually quite simple. New tests have been added to covers
these cases.

Differential Revision: https://phab.mercurial-scm.org/D8259

/*
 *  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 <[e-mail]>
 *
 */

#if !defined(XUTILS_H)
#define XUTILS_H



int64_t xdl_bogosqrt(int64_t n);
int xdl_cha_init(chastore_t *cha, int64_t isize, int64_t icount);
void xdl_cha_free(chastore_t *cha);
void *xdl_cha_alloc(chastore_t *cha);
int64_t xdl_guess_lines(mmfile_t *mf, int64_t sample);
int xdl_recmatch(const char *l1, int64_t s1, const char *l2, int64_t s2);
uint64_t xdl_hash_record(char const **data, char const *top);
unsigned int xdl_hashbits(int64_t size);



#endif /* #if !defined(XUTILS_H) */