mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-18 04:15:32 +00:00
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <strings.h>
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#include <string.h>
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#include "common/sort-utils.h"
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int compare_init(struct compare *comp, const struct sortdef *sortdef)
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{
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memset(comp, 0, sizeof(struct compare));
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comp->sortdef = sortdef;
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return 0;
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}
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int compare_cmp_multi(const void *a, const void *b, const struct compare *comp)
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{
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for (int i = 0; i < comp->count; i++) {
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int ret;
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ret = comp->comp[i](a,b);
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if (ret != 0)
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return (comp->invert_map & (1U << i)) ? -ret : ret;
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}
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return 0;
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}
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int compare_add_sort_key(struct compare *comp, const char *key)
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{
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int i;
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if (!comp->sortdef)
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return -1;
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for (i = 0; i < 32; i++) {
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if (comp->sortdef[i].name == NULL)
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return -1;
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if (strcasecmp(key, comp->sortdef[i].name) == 0) {
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comp->comp[comp->count] = comp->sortdef[i].comp;
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comp->count++;
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break;
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}
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}
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return 0;
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}
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