blob: e82ed59e42a9c31d20c57ffde4fe7bb383bd1fb5 [file] [log] [blame]
/*
* Elastic Binary Trees - exported generic functions
* Version 6.0.6
* (C) 2002-2011 - Willy Tarreau <w@1wt.eu>
*
* 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, version 2.1
* exclusively.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "ebtree.h"
void eb_delete(struct eb_node *node)
{
__eb_delete(node);
}
/* used by insertion primitives */
REGPRM1 struct eb_node *eb_insert_dup(struct eb_node *sub, struct eb_node *new)
{
return __eb_insert_dup(sub, new);
}
/* compares memory blocks m1 and m2 for up to <len> bytes. Immediately stops at
* the first non-matching byte. It returns 0 on full match, non-zero otherwise.
* One byte will always be checked so this must not be called with len==0. It
* takes 2+5cy/B on x86_64 and is ~29 bytes long.
*/
int eb_memcmp(const void *m1, const void *m2, size_t len)
{
const char *p1 = (const char *)m1 + len;
const char *p2 = (const char *)m2 + len;
ssize_t ofs = -len;
char diff;
do {
diff = p1[ofs] - p2[ofs];
} while (!diff && ++ofs);
return diff;
}