mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git
synced 2024-11-15 08:14:21 +08:00
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License v2 as published by the Free Software Foundation.
|
|
*
|
|
* This program 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 this program; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 021110-1307, USA.
|
|
*/
|
|
|
|
#include <strings.h>
|
|
#include <string.h>
|
|
#include "common/sort-utils.h"
|
|
|
|
int compare_init(struct compare *comp, const struct sortdef *sortdef)
|
|
{
|
|
memset(comp, 0, sizeof(struct compare));
|
|
comp->sortdef = sortdef;
|
|
return 0;
|
|
}
|
|
|
|
int compare_cmp_multi(const void *a, const void *b, const struct compare *comp)
|
|
{
|
|
for (int i = 0; i < comp->count; i++) {
|
|
int ret;
|
|
|
|
ret = comp->comp[i](a,b);
|
|
if (ret != 0)
|
|
return (comp->invert_map & (1U << i)) ? -ret : ret;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int compare_add_sort_key(struct compare *comp, const char *key)
|
|
{
|
|
int i;
|
|
|
|
if (!comp->sortdef)
|
|
return -1;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
if (comp->sortdef[i].name == NULL)
|
|
return -1;
|
|
if (strcasecmp(key, comp->sortdef[i].name) == 0) {
|
|
comp->comp[comp->count] = comp->sortdef[i].comp;
|
|
comp->count++;
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|