11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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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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***/
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#include "macro.h"
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#include "siphash24.h"
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typedef void (*hash_func_t)(const void *p, struct siphash *state);
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typedef int (*compare_func_t)(const void *a, const void *b);
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struct hash_ops {
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hash_func_t hash;
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compare_func_t compare;
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};
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void string_hash_func(const void *p, struct siphash *state);
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int string_compare_func(const void *a, const void *b) _pure_;
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extern const struct hash_ops string_hash_ops;
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void path_hash_func(const void *p, struct siphash *state);
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int path_compare_func(const void *a, const void *b) _pure_;
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extern const struct hash_ops path_hash_ops;
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/* This will compare the passed pointers directly, and will not dereference them. This is hence not useful for strings
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* or suchlike. */
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void trivial_hash_func(const void *p, struct siphash *state);
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int trivial_compare_func(const void *a, const void *b) _const_;
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extern const struct hash_ops trivial_hash_ops;
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/* 32bit values we can always just embed in the pointer itself, but in order to support 32bit archs we need store 64bit
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* values indirectly, since they don't fit in a pointer. */
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void uint64_hash_func(const void *p, struct siphash *state);
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int uint64_compare_func(const void *a, const void *b) _pure_;
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extern const struct hash_ops uint64_hash_ops;
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/* On some archs dev_t is 32bit, and on others 64bit. And sometimes it's 64bit on 32bit archs, and sometimes 32bit on
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* 64bit archs. Yuck! */
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#if SIZEOF_DEV_T != 8
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void devt_hash_func(const void *p, struct siphash *state) _pure_;
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int devt_compare_func(const void *a, const void *b) _pure_;
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extern const struct hash_ops devt_hash_ops;
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#else
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#define devt_hash_func uint64_hash_func
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#define devt_compare_func uint64_compare_func
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#define devt_hash_ops uint64_hash_ops
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#endif
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