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Commit | Line | Data |
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6eb8ae00 DB |
1 | #ifndef OBJECT_H |
2 | #define OBJECT_H | |
3 | ||
4 | struct object_list { | |
5 | struct object *item; | |
6 | struct object_list *next; | |
7 | }; | |
8 | ||
27dedf0c JH |
9 | struct object_refs { |
10 | unsigned count; | |
8f1d2e6f | 11 | struct object *ref[FLEX_ARRAY]; /* more */ |
27dedf0c JH |
12 | }; |
13 | ||
1f1e895f LT |
14 | struct object_array { |
15 | unsigned int nr; | |
16 | unsigned int alloc; | |
17 | struct object_array_entry { | |
18 | struct object *item; | |
19 | const char *name; | |
e5709a4a | 20 | unsigned mode; |
1f1e895f LT |
21 | } *objects; |
22 | }; | |
23 | ||
3cd47459 TF |
24 | #define OBJECT_ARRAY_INIT { 0, 0, NULL } |
25 | ||
885a86ab LT |
26 | #define TYPE_BITS 3 |
27 | #define FLAG_BITS 27 | |
28 | ||
1974632c LT |
29 | /* |
30 | * The object type is stored in 3 bits. | |
31 | */ | |
6eb8ae00 DB |
32 | struct object { |
33 | unsigned parsed : 1; | |
34 | unsigned used : 1; | |
885a86ab LT |
35 | unsigned type : TYPE_BITS; |
36 | unsigned flags : FLAG_BITS; | |
6eb8ae00 | 37 | unsigned char sha1[20]; |
6eb8ae00 DB |
38 | }; |
39 | ||
df843662 NP |
40 | extern const char *typename(unsigned int type); |
41 | extern int type_from_string(const char *str); | |
885a86ab | 42 | |
fc046a75 LT |
43 | extern unsigned int get_max_object_index(void); |
44 | extern struct object *get_indexed_object(unsigned int); | |
3e4339e6 | 45 | |
628b06d7 JH |
46 | /* |
47 | * This can be used to see if we have heard of the object before, but | |
48 | * it can return "yes we have, and here is a half-initialised object" | |
49 | * for an object that we haven't loaded/parsed yet. | |
50 | * | |
51 | * When parsing a commit to create an in-core commit object, its | |
52 | * parents list holds commit objects that represent its parents, but | |
53 | * they are expected to be lazily initialized and do not know what | |
54 | * their trees or parents are yet. When this function returns such a | |
55 | * half-initialised objects, the caller is expected to initialize them | |
56 | * by calling parse_object() on them. | |
57 | */ | |
5d6ccf5c | 58 | struct object *lookup_object(const unsigned char *sha1); |
6eb8ae00 | 59 | |
100c5f3b | 60 | extern void *create_object(const unsigned char *sha1, int type, void *obj); |
6eb8ae00 | 61 | |
e9eefa67 | 62 | /** Returns the object, having parsed it to find out what it is. **/ |
5d6ccf5c | 63 | struct object *parse_object(const unsigned char *sha1); |
e9eefa67 | 64 | |
9f613ddd JH |
65 | /* Given the result of read_sha1_file(), returns the object after |
66 | * parsing it. eaten_p indicates if the object has a borrowed copy | |
67 | * of buffer and the caller should not free() it. | |
68 | */ | |
21666f1a | 69 | struct object *parse_object_buffer(const unsigned char *sha1, enum object_type type, unsigned long size, void *buffer, int *eaten_p); |
9f613ddd | 70 | |
66e481b0 DB |
71 | /** Returns the object, with potentially excess memory allocated. **/ |
72 | struct object *lookup_unknown_object(const unsigned char *sha1); | |
73 | ||
a6080a0a | 74 | struct object_list *object_list_insert(struct object *item, |
66e481b0 DB |
75 | struct object_list **list_p); |
76 | ||
66e481b0 DB |
77 | int object_list_contains(struct object_list *list, struct object *obj); |
78 | ||
1f1e895f LT |
79 | /* Object array handling .. */ |
80 | void add_object_array(struct object *obj, const char *name, struct object_array *array); | |
e5709a4a | 81 | void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode); |
b2a6d1c6 | 82 | void object_array_remove_duplicates(struct object_array *); |
1f1e895f | 83 | |
6eb8ae00 | 84 | #endif /* OBJECT_H */ |