Commit | Line | Data |
---|---|---|
bec39940 | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> |
bec39940 | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: GPL-2.0-only |
bec39940 | 5 | * |
bec39940 DG |
6 | */ |
7 | ||
8 | #ifndef _LTT_HT_H | |
9 | #define _LTT_HT_H | |
10 | ||
11 | #include <urcu.h> | |
d88aee68 | 12 | #include <stdint.h> |
10a8a223 | 13 | |
d604af56 | 14 | #include <common/macros.h> |
8684af09 | 15 | #include <urcu/rculfhash.h> |
bec39940 | 16 | |
b6314938 DG |
17 | extern unsigned long lttng_ht_seed; |
18 | ||
bcd52dd9 | 19 | typedef unsigned long (*hash_fct)(const void *_key, unsigned long seed); |
bec39940 DG |
20 | typedef cds_lfht_match_fct hash_match_fct; |
21 | ||
22 | enum lttng_ht_type { | |
23 | LTTNG_HT_TYPE_STRING, | |
24 | LTTNG_HT_TYPE_ULONG, | |
d88aee68 | 25 | LTTNG_HT_TYPE_U64, |
3c4599b9 | 26 | LTTNG_HT_TYPE_TWO_U64, |
bec39940 DG |
27 | }; |
28 | ||
29 | struct lttng_ht { | |
30 | struct cds_lfht *ht; | |
31 | cds_lfht_match_fct match_fct; | |
32 | hash_fct hash_fct; | |
33 | }; | |
34 | ||
35 | struct lttng_ht_iter { | |
36 | struct cds_lfht_iter iter; | |
37 | }; | |
38 | ||
39 | struct lttng_ht_node_str { | |
40 | char *key; | |
41 | struct cds_lfht_node node; | |
42 | struct rcu_head head; | |
43 | }; | |
44 | ||
45 | struct lttng_ht_node_ulong { | |
46 | unsigned long key; | |
47 | struct cds_lfht_node node; | |
48 | struct rcu_head head; | |
49 | }; | |
50 | ||
d88aee68 DG |
51 | struct lttng_ht_node_u64 { |
52 | uint64_t key; | |
53 | struct cds_lfht_node node; | |
54 | struct rcu_head head; | |
55 | }; | |
56 | ||
3c4599b9 JD |
57 | struct lttng_ht_two_u64 { |
58 | uint64_t key1; | |
59 | uint64_t key2; | |
60 | }; | |
61 | ||
62 | struct lttng_ht_node_two_u64 { | |
63 | struct lttng_ht_two_u64 key; | |
64 | struct cds_lfht_node node; | |
65 | struct rcu_head head; | |
66 | }; | |
67 | ||
bec39940 | 68 | /* Hashtable new and destroy */ |
d604af56 | 69 | struct lttng_ht *lttng_ht_new(unsigned long size, int type); |
d604af56 | 70 | void lttng_ht_destroy(struct lttng_ht *ht); |
bec39940 DG |
71 | |
72 | /* Specialized node init and free functions */ | |
d604af56 | 73 | void lttng_ht_node_init_str(struct lttng_ht_node_str *node, char *key); |
d604af56 | 74 | void lttng_ht_node_init_ulong(struct lttng_ht_node_ulong *node, |
bec39940 | 75 | unsigned long key); |
d604af56 | 76 | void lttng_ht_node_init_u64(struct lttng_ht_node_u64 *node, |
d88aee68 | 77 | uint64_t key); |
d604af56 | 78 | void lttng_ht_node_init_two_u64(struct lttng_ht_node_two_u64 *node, |
3c4599b9 | 79 | uint64_t key1, uint64_t key2); |
d604af56 | 80 | void lttng_ht_node_free_str(struct lttng_ht_node_str *node); |
d604af56 | 81 | void lttng_ht_node_free_ulong(struct lttng_ht_node_ulong *node); |
d604af56 | 82 | void lttng_ht_node_free_u64(struct lttng_ht_node_u64 *node); |
d604af56 JG |
83 | void lttng_ht_node_free_two_u64(struct lttng_ht_node_two_u64 *node); |
84 | ||
fb9a95c4 | 85 | void lttng_ht_lookup(struct lttng_ht *ht, const void *key, |
bec39940 DG |
86 | struct lttng_ht_iter *iter); |
87 | ||
88 | /* Specialized add unique functions */ | |
d604af56 | 89 | void lttng_ht_add_unique_str(struct lttng_ht *ht, |
bec39940 | 90 | struct lttng_ht_node_str *node); |
d604af56 | 91 | void lttng_ht_add_unique_ulong(struct lttng_ht *ht, |
bec39940 | 92 | struct lttng_ht_node_ulong *node); |
d604af56 | 93 | void lttng_ht_add_unique_u64(struct lttng_ht *ht, |
d88aee68 | 94 | struct lttng_ht_node_u64 *node); |
d604af56 | 95 | void lttng_ht_add_unique_two_u64(struct lttng_ht *ht, |
3c4599b9 | 96 | struct lttng_ht_node_two_u64 *node); |
d604af56 | 97 | struct lttng_ht_node_ulong *lttng_ht_add_replace_ulong( |
852d0037 | 98 | struct lttng_ht *ht, struct lttng_ht_node_ulong *node); |
d604af56 | 99 | struct lttng_ht_node_u64 *lttng_ht_add_replace_u64( |
d88aee68 | 100 | struct lttng_ht *ht, struct lttng_ht_node_u64 *node); |
d604af56 | 101 | void lttng_ht_add_str(struct lttng_ht *ht, |
efa116c6 | 102 | struct lttng_ht_node_str *node); |
d604af56 | 103 | void lttng_ht_add_ulong(struct lttng_ht *ht, |
aefea3b7 | 104 | struct lttng_ht_node_ulong *node); |
d604af56 | 105 | void lttng_ht_add_u64(struct lttng_ht *ht, |
d88aee68 | 106 | struct lttng_ht_node_u64 *node); |
bec39940 | 107 | |
d604af56 | 108 | int lttng_ht_del(struct lttng_ht *ht, struct lttng_ht_iter *iter); |
bec39940 | 109 | |
d604af56 | 110 | void lttng_ht_get_first(struct lttng_ht *ht, |
bec39940 | 111 | struct lttng_ht_iter *iter); |
d604af56 | 112 | void lttng_ht_get_next(struct lttng_ht *ht, struct lttng_ht_iter *iter); |
bec39940 | 113 | |
d604af56 | 114 | unsigned long lttng_ht_get_count(struct lttng_ht *ht); |
bec39940 | 115 | |
d604af56 | 116 | struct lttng_ht_node_str *lttng_ht_iter_get_node_str( |
bec39940 | 117 | struct lttng_ht_iter *iter); |
d604af56 | 118 | struct lttng_ht_node_ulong *lttng_ht_iter_get_node_ulong( |
bec39940 | 119 | struct lttng_ht_iter *iter); |
d604af56 | 120 | struct lttng_ht_node_u64 *lttng_ht_iter_get_node_u64( |
d88aee68 | 121 | struct lttng_ht_iter *iter); |
d604af56 | 122 | struct lttng_ht_node_two_u64 *lttng_ht_iter_get_node_two_u64( |
3c4599b9 | 123 | struct lttng_ht_iter *iter); |
bec39940 DG |
124 | |
125 | #endif /* _LTT_HT_H */ |