]>
Commit | Line | Data |
---|---|---|
bb742ede | 1 | /* |
359fc2d2 | 2 | * Copyright (C) the libgit2 contributors. All rights reserved. |
bb742ede VM |
3 | * |
4 | * This file is part of libgit2, distributed under the GNU GPL v2 with | |
5 | * a Linking Exception. For full terms see the included COPYING file. | |
6 | */ | |
c4034e63 VM |
7 | #ifndef INCLUDE_vector_h__ |
8 | #define INCLUDE_vector_h__ | |
9 | ||
72556cc6 | 10 | #include "common.h" |
c4034e63 | 11 | |
c4034e63 | 12 | typedef int (*git_vector_cmp)(const void *, const void *); |
c4034e63 | 13 | |
882c7742 RB |
14 | enum { |
15 | GIT_VECTOR_SORTED = (1u << 0), | |
16 | GIT_VECTOR_FLAG_MAX = (1u << 1), | |
17 | }; | |
18 | ||
c4034e63 | 19 | typedef struct git_vector { |
b8457baa | 20 | size_t _alloc_size; |
c4034e63 | 21 | git_vector_cmp _cmp; |
c4034e63 | 22 | void **contents; |
b8457baa | 23 | size_t length; |
882c7742 | 24 | uint32_t flags; |
c4034e63 VM |
25 | } git_vector; |
26 | ||
ee1f0b1a RB |
27 | #define GIT_VECTOR_INIT {0} |
28 | ||
b8457baa | 29 | int git_vector_init(git_vector *v, size_t initial_size, git_vector_cmp cmp); |
c4034e63 | 30 | void git_vector_free(git_vector *v); |
9cfce273 | 31 | void git_vector_free_deep(git_vector *v); /* free each entry and self */ |
c4034e63 | 32 | void git_vector_clear(git_vector *v); |
16248ee2 | 33 | int git_vector_dup(git_vector *v, const git_vector *src, git_vector_cmp cmp); |
74fa4bfa | 34 | void git_vector_swap(git_vector *a, git_vector *b); |
c4034e63 | 35 | |
25e0b157 RB |
36 | void **git_vector_detach(size_t *size, size_t *asize, git_vector *v); |
37 | ||
41a82592 RB |
38 | void git_vector_sort(git_vector *v); |
39 | ||
bad68c0a | 40 | /** Linear search for matching entry using internal comparison function */ |
11d9f6b3 | 41 | int git_vector_search(size_t *at_pos, const git_vector *v, const void *entry); |
bad68c0a RB |
42 | |
43 | /** Linear search for matching entry using explicit comparison function */ | |
11d9f6b3 | 44 | int git_vector_search2(size_t *at_pos, const git_vector *v, git_vector_cmp cmp, const void *key); |
86d7e1ca | 45 | |
bad68c0a RB |
46 | /** |
47 | * Binary search for matching entry using explicit comparison function that | |
48 | * returns position where item would go if not found. | |
49 | */ | |
11d9f6b3 | 50 | int git_vector_bsearch2( |
16248ee2 | 51 | size_t *at_pos, git_vector *v, git_vector_cmp cmp, const void *key); |
86d7e1ca | 52 | |
bad68c0a | 53 | /** Binary search for matching entry using internal comparison function */ |
11d9f6b3 | 54 | GIT_INLINE(int) git_vector_bsearch(size_t *at_pos, git_vector *v, const void *key) |
41a82592 | 55 | { |
11d9f6b3 | 56 | return git_vector_bsearch2(at_pos, v, v->_cmp, key); |
41a82592 | 57 | } |
c4034e63 | 58 | |
54b2a37a | 59 | GIT_INLINE(void *) git_vector_get(const git_vector *v, size_t position) |
86194b24 VM |
60 | { |
61 | return (position < v->length) ? v->contents[position] : NULL; | |
62 | } | |
c4034e63 | 63 | |
a48ea31d RB |
64 | #define GIT_VECTOR_GET(V,I) ((I) < (V)->length ? (V)->contents[(I)] : NULL) |
65 | ||
0b7cdc02 RB |
66 | GIT_INLINE(size_t) git_vector_length(const git_vector *v) |
67 | { | |
68 | return v->length; | |
69 | } | |
70 | ||
16248ee2 | 71 | GIT_INLINE(void *) git_vector_last(const git_vector *v) |
b6c93aef RB |
72 | { |
73 | return (v->length > 0) ? git_vector_get(v, v->length - 1) : NULL; | |
74 | } | |
75 | ||
bcf21c55 CMN |
76 | #define git_vector_foreach(v, iter, elem) \ |
77 | for ((iter) = 0; (iter) < (v)->length && ((elem) = (v)->contents[(iter)], 1); (iter)++ ) | |
78 | ||
ee1f0b1a | 79 | #define git_vector_rforeach(v, iter, elem) \ |
df93a681 | 80 | for ((iter) = (v)->length - 1; (iter) < SIZE_MAX && ((elem) = (v)->contents[(iter)], 1); (iter)-- ) |
ee1f0b1a | 81 | |
c4034e63 | 82 | int git_vector_insert(git_vector *v, void *element); |
bd370b14 RB |
83 | int git_vector_insert_sorted(git_vector *v, void *element, |
84 | int (*on_dup)(void **old, void *new)); | |
16248ee2 | 85 | int git_vector_remove(git_vector *v, size_t idx); |
0534641d | 86 | void git_vector_pop(git_vector *v); |
191adce8 | 87 | void git_vector_uniq(git_vector *v, void (*git_free_cb)(void *)); |
c67fd4c9 | 88 | |
16248ee2 | 89 | void git_vector_remove_matching( |
c67fd4c9 RB |
90 | git_vector *v, |
91 | int (*match)(const git_vector *v, size_t idx, void *payload), | |
92 | void *payload); | |
bd370b14 | 93 | |
db106d01 RB |
94 | int git_vector_resize_to(git_vector *v, size_t new_length); |
95 | int git_vector_set(void **old, git_vector *v, size_t position, void *value); | |
96 | ||
882c7742 RB |
97 | /** Check if vector is sorted */ |
98 | #define git_vector_is_sorted(V) (((V)->flags & GIT_VECTOR_SORTED) != 0) | |
99 | ||
100 | /** Directly set sorted state of vector */ | |
101 | #define git_vector_set_sorted(V,S) do { \ | |
102 | (V)->flags = (S) ? ((V)->flags | GIT_VECTOR_SORTED) : \ | |
103 | ((V)->flags & ~GIT_VECTOR_SORTED); } while (0) | |
104 | ||
22b6b82f RB |
105 | /** Set the comparison function used for sorting the vector */ |
106 | GIT_INLINE(void) git_vector_set_cmp(git_vector *v, git_vector_cmp cmp) | |
107 | { | |
108 | if (cmp != v->_cmp) { | |
109 | v->_cmp = cmp; | |
882c7742 | 110 | git_vector_set_sorted(v, 0); |
22b6b82f RB |
111 | } |
112 | } | |
113 | ||
c67fd4c9 RB |
114 | /* Just use this in tests, not for realz. returns -1 if not sorted */ |
115 | int git_vector_verify_sorted(const git_vector *v); | |
116 | ||
c4034e63 | 117 | #endif |