]>
Commit | Line | Data |
---|---|---|
1 | #ifndef OBJECT_H | |
2 | #define OBJECT_H | |
3 | ||
4 | struct object_list { | |
5 | struct object *item; | |
6 | struct object_list *next; | |
7 | }; | |
8 | ||
9 | struct object_refs { | |
10 | unsigned count; | |
11 | struct object *ref[FLEX_ARRAY]; /* more */ | |
12 | }; | |
13 | ||
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; | |
20 | unsigned mode; | |
21 | } *objects; | |
22 | }; | |
23 | ||
24 | #define OBJECT_ARRAY_INIT { 0, 0, NULL } | |
25 | ||
26 | #define TYPE_BITS 3 | |
27 | #define FLAG_BITS 27 | |
28 | ||
29 | /* | |
30 | * The object type is stored in 3 bits. | |
31 | */ | |
32 | struct object { | |
33 | unsigned parsed : 1; | |
34 | unsigned used : 1; | |
35 | unsigned type : TYPE_BITS; | |
36 | unsigned flags : FLAG_BITS; | |
37 | unsigned char sha1[20]; | |
38 | }; | |
39 | ||
40 | extern const char *typename(unsigned int type); | |
41 | extern int type_from_string(const char *str); | |
42 | ||
43 | extern unsigned int get_max_object_index(void); | |
44 | extern struct object *get_indexed_object(unsigned int); | |
45 | ||
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 | */ | |
58 | struct object *lookup_object(const unsigned char *sha1); | |
59 | ||
60 | extern void *create_object(const unsigned char *sha1, int type, void *obj); | |
61 | ||
62 | /** Returns the object, having parsed it to find out what it is. **/ | |
63 | struct object *parse_object(const unsigned char *sha1); | |
64 | ||
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 | */ | |
69 | struct object *parse_object_buffer(const unsigned char *sha1, enum object_type type, unsigned long size, void *buffer, int *eaten_p); | |
70 | ||
71 | /** Returns the object, with potentially excess memory allocated. **/ | |
72 | struct object *lookup_unknown_object(const unsigned char *sha1); | |
73 | ||
74 | struct object_list *object_list_insert(struct object *item, | |
75 | struct object_list **list_p); | |
76 | ||
77 | int object_list_contains(struct object_list *list, struct object *obj); | |
78 | ||
79 | /* Object array handling .. */ | |
80 | void add_object_array(struct object *obj, const char *name, struct object_array *array); | |
81 | void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode); | |
82 | void object_array_remove_duplicates(struct object_array *); | |
83 | ||
84 | #endif /* OBJECT_H */ |