85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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Copyright 2014 Michal Schmidt
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <string.h>
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#include "hash-funcs.h"
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void string_hash_func(const void *p, struct siphash *state) {
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siphash24_compress(p, strlen(p) + 1, state);
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}
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int string_compare_func(const void *a, const void *b) {
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return strcmp(a, b);
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}
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const struct hash_ops string_hash_ops = {
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.hash = string_hash_func,
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.compare = string_compare_func
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};
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void trivial_hash_func(const void *p, struct siphash *state) {
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siphash24_compress(&p, sizeof(p), state);
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}
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int trivial_compare_func(const void *a, const void *b) {
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return a < b ? -1 : (a > b ? 1 : 0);
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}
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const struct hash_ops trivial_hash_ops = {
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.hash = trivial_hash_func,
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.compare = trivial_compare_func
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};
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void uint64_hash_func(const void *p, struct siphash *state) {
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siphash24_compress(p, sizeof(uint64_t), state);
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}
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int uint64_compare_func(const void *_a, const void *_b) {
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uint64_t a, b;
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a = *(const uint64_t*) _a;
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b = *(const uint64_t*) _b;
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return a < b ? -1 : (a > b ? 1 : 0);
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}
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const struct hash_ops uint64_hash_ops = {
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.hash = uint64_hash_func,
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.compare = uint64_compare_func
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};
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#if SIZEOF_DEV_T != 8
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void devt_hash_func(const void *p, struct siphash *state) {
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siphash24_compress(p, sizeof(dev_t), state);
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}
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int devt_compare_func(const void *_a, const void *_b) {
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dev_t a, b;
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a = *(const dev_t*) _a;
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b = *(const dev_t*) _b;
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return a < b ? -1 : (a > b ? 1 : 0);
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}
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const struct hash_ops devt_hash_ops = {
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.hash = devt_hash_func,
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.compare = devt_compare_func
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};
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#endif
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