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Commit | Line | Data |
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6eb8ae00 DB |
1 | #ifndef OBJECT_H |
2 | #define OBJECT_H | |
3 | ||
99bf115c SB |
4 | struct parsed_object_pool { |
5 | struct object **obj_hash; | |
6 | int nr_objs, obj_hash_size; | |
14ba97f8 SB |
7 | |
8 | /* TODO: migrate alloc_states to mem-pool? */ | |
9 | struct alloc_state *blob_state; | |
10 | struct alloc_state *tree_state; | |
11 | struct alloc_state *commit_state; | |
12 | struct alloc_state *tag_state; | |
13 | struct alloc_state *object_state; | |
14 | unsigned commit_count; | |
6a1a79fd JN |
15 | |
16 | /* parent substitutions from .git/info/grafts and .git/shallow */ | |
17 | struct commit_graft **grafts; | |
18 | int grafts_alloc, grafts_nr; | |
99bf115c SB |
19 | }; |
20 | ||
21 | struct parsed_object_pool *parsed_object_pool_new(void); | |
22 | void parsed_object_pool_clear(struct parsed_object_pool *o); | |
23 | ||
6eb8ae00 DB |
24 | struct object_list { |
25 | struct object *item; | |
26 | struct object_list *next; | |
27 | }; | |
28 | ||
1f1e895f LT |
29 | struct object_array { |
30 | unsigned int nr; | |
31 | unsigned int alloc; | |
32 | struct object_array_entry { | |
33 | struct object *item; | |
31faeb20 MH |
34 | /* |
35 | * name or NULL. If non-NULL, the memory pointed to | |
36 | * is owned by this object *except* if it points at | |
37 | * object_array_slopbuf, which is a static copy of the | |
38 | * empty string. | |
39 | */ | |
40 | char *name; | |
9e0c3c4f | 41 | char *path; |
e5709a4a | 42 | unsigned mode; |
1f1e895f LT |
43 | } *objects; |
44 | }; | |
45 | ||
3cd47459 TF |
46 | #define OBJECT_ARRAY_INIT { 0, 0, NULL } |
47 | ||
885a86ab | 48 | #define TYPE_BITS 3 |
208acbfb NTND |
49 | /* |
50 | * object flag allocation: | |
3d1cf1e8 NTND |
51 | * revision.h: 0---------10 26 |
52 | * fetch-pack.c: 0----5 | |
53 | * walker.c: 0-2 | |
54 | * upload-pack.c: 4 11----------------19 | |
55 | * builtin/blame.c: 12-13 | |
56 | * bisect.c: 16 | |
57 | * bundle.c: 16 | |
58 | * http-push.c: 16-----19 | |
59 | * commit.c: 16-----19 | |
60 | * sha1_name.c: 20 | |
61 | * list-objects-filter.c: 21 | |
62 | * builtin/fsck.c: 0--3 | |
63 | * builtin/index-pack.c: 2021 | |
64 | * builtin/pack-objects.c: 20 | |
65 | * builtin/reflog.c: 10--12 | |
66 | * builtin/unpack-objects.c: 2021 | |
208acbfb | 67 | */ |
885a86ab LT |
68 | #define FLAG_BITS 27 |
69 | ||
1974632c LT |
70 | /* |
71 | * The object type is stored in 3 bits. | |
72 | */ | |
6eb8ae00 DB |
73 | struct object { |
74 | unsigned parsed : 1; | |
885a86ab LT |
75 | unsigned type : TYPE_BITS; |
76 | unsigned flags : FLAG_BITS; | |
f2fd0760 | 77 | struct object_id oid; |
6eb8ae00 DB |
78 | }; |
79 | ||
debca9d2 | 80 | extern const char *type_name(unsigned int type); |
fe8e3b71 JS |
81 | extern int type_from_string_gently(const char *str, ssize_t, int gentle); |
82 | #define type_from_string(str) type_from_string_gently(str, -1, 0) | |
885a86ab | 83 | |
33bef7ea MH |
84 | /* |
85 | * Return the current number of buckets in the object hashmap. | |
86 | */ | |
fc046a75 | 87 | extern unsigned int get_max_object_index(void); |
33bef7ea MH |
88 | |
89 | /* | |
90 | * Return the object from the specified bucket in the object hashmap. | |
91 | */ | |
fc046a75 | 92 | extern struct object *get_indexed_object(unsigned int); |
3e4339e6 | 93 | |
628b06d7 JH |
94 | /* |
95 | * This can be used to see if we have heard of the object before, but | |
96 | * it can return "yes we have, and here is a half-initialised object" | |
97 | * for an object that we haven't loaded/parsed yet. | |
98 | * | |
99 | * When parsing a commit to create an in-core commit object, its | |
100 | * parents list holds commit objects that represent its parents, but | |
101 | * they are expected to be lazily initialized and do not know what | |
102 | * their trees or parents are yet. When this function returns such a | |
103 | * half-initialised objects, the caller is expected to initialize them | |
104 | * by calling parse_object() on them. | |
105 | */ | |
5d6ccf5c | 106 | struct object *lookup_object(const unsigned char *sha1); |
6eb8ae00 | 107 | |
341e45e4 | 108 | extern void *create_object(struct repository *r, const unsigned char *sha1, void *obj); |
6eb8ae00 | 109 | |
8ff226a9 JK |
110 | void *object_as_type(struct object *obj, enum object_type type, int quiet); |
111 | ||
75a95490 JK |
112 | /* |
113 | * Returns the object, having parsed it to find out what it is. | |
114 | * | |
115 | * Returns NULL if the object is missing or corrupt. | |
116 | */ | |
c251c83d | 117 | struct object *parse_object(const struct object_id *oid); |
e9eefa67 | 118 | |
75a95490 JK |
119 | /* |
120 | * Like parse_object, but will die() instead of returning NULL. If the | |
121 | * "name" parameter is not NULL, it is included in the error message | |
c251c83d | 122 | * (otherwise, the hex object ID is given). |
75a95490 | 123 | */ |
c251c83d | 124 | struct object *parse_object_or_die(const struct object_id *oid, const char *name); |
75a95490 | 125 | |
9f613ddd JH |
126 | /* Given the result of read_sha1_file(), returns the object after |
127 | * parsing it. eaten_p indicates if the object has a borrowed copy | |
128 | * of buffer and the caller should not free() it. | |
129 | */ | |
c251c83d | 130 | struct object *parse_object_buffer(const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p); |
9f613ddd | 131 | |
66e481b0 DB |
132 | /** Returns the object, with potentially excess memory allocated. **/ |
133 | struct object *lookup_unknown_object(const unsigned char *sha1); | |
134 | ||
a6080a0a | 135 | struct object_list *object_list_insert(struct object *item, |
66e481b0 DB |
136 | struct object_list **list_p); |
137 | ||
66e481b0 DB |
138 | int object_list_contains(struct object_list *list, struct object *obj); |
139 | ||
1f1e895f LT |
140 | /* Object array handling .. */ |
141 | void add_object_array(struct object *obj, const char *name, struct object_array *array); | |
9e0c3c4f | 142 | void add_object_array_with_path(struct object *obj, const char *name, struct object_array *array, unsigned mode, const char *path); |
aeb4a51e | 143 | |
71992039 MÅ |
144 | /* |
145 | * Returns NULL if the array is empty. Otherwise, returns the last object | |
146 | * after removing its entry from the array. Other resources associated | |
147 | * with that object are left in an unspecified state and should not be | |
148 | * examined. | |
149 | */ | |
150 | struct object *object_array_pop(struct object_array *array); | |
151 | ||
aeb4a51e MH |
152 | typedef int (*object_array_each_func_t)(struct object_array_entry *, void *); |
153 | ||
154 | /* | |
155 | * Apply want to each entry in array, retaining only the entries for | |
156 | * which the function returns true. Preserve the order of the entries | |
157 | * that are retained. | |
158 | */ | |
159 | void object_array_filter(struct object_array *array, | |
160 | object_array_each_func_t want, void *cb_data); | |
161 | ||
1506510c MH |
162 | /* |
163 | * Remove from array all but the first entry with a given name. | |
164 | * Warning: this function uses an O(N^2) algorithm. | |
165 | */ | |
166 | void object_array_remove_duplicates(struct object_array *array); | |
1f1e895f | 167 | |
46be8231 JK |
168 | /* |
169 | * Remove any objects from the array, freeing all used memory; afterwards | |
170 | * the array is ready to store more objects with add_object_array(). | |
171 | */ | |
172 | void object_array_clear(struct object_array *array); | |
173 | ||
bcc0a3ea HV |
174 | void clear_object_flags(unsigned flags); |
175 | ||
4ad315fc RS |
176 | /* |
177 | * Clear the specified object flags from all in-core commit objects. | |
178 | */ | |
179 | extern void clear_commit_marks_all(unsigned int flags); | |
180 | ||
6eb8ae00 | 181 | #endif /* OBJECT_H */ |