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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; | |
3e4339e6 | 11 | struct object *base; |
8f1d2e6f | 12 | struct object *ref[FLEX_ARRAY]; /* more */ |
27dedf0c JH |
13 | }; |
14 | ||
1f1e895f LT |
15 | struct object_array { |
16 | unsigned int nr; | |
17 | unsigned int alloc; | |
18 | struct object_array_entry { | |
19 | struct object *item; | |
20 | const char *name; | |
21 | } *objects; | |
22 | }; | |
23 | ||
885a86ab LT |
24 | #define TYPE_BITS 3 |
25 | #define FLAG_BITS 27 | |
26 | ||
1974632c LT |
27 | /* |
28 | * The object type is stored in 3 bits. | |
29 | */ | |
30 | enum object_type { | |
31 | OBJ_NONE = 0, | |
32 | OBJ_COMMIT = 1, | |
33 | OBJ_TREE = 2, | |
34 | OBJ_BLOB = 3, | |
35 | OBJ_TAG = 4, | |
36 | /* 5/6 for future expansion */ | |
37 | OBJ_DELTA = 7, | |
38 | OBJ_BAD, | |
39 | }; | |
885a86ab | 40 | |
6eb8ae00 DB |
41 | struct object { |
42 | unsigned parsed : 1; | |
43 | unsigned used : 1; | |
885a86ab LT |
44 | unsigned type : TYPE_BITS; |
45 | unsigned flags : FLAG_BITS; | |
6eb8ae00 | 46 | unsigned char sha1[20]; |
6eb8ae00 DB |
47 | }; |
48 | ||
8805ccac | 49 | extern int track_object_refs; |
1974632c | 50 | extern const char *type_names[9]; |
885a86ab | 51 | |
fc046a75 LT |
52 | extern unsigned int get_max_object_index(void); |
53 | extern struct object *get_indexed_object(unsigned int); | |
54 | ||
885a86ab LT |
55 | static inline const char *typename(unsigned int type) |
56 | { | |
1974632c | 57 | return type_names[type > OBJ_BAD ? OBJ_BAD : type]; |
885a86ab | 58 | } |
6eb8ae00 | 59 | |
3e4339e6 LT |
60 | extern struct object_refs *lookup_object_refs(struct object *); |
61 | ||
89e4202f | 62 | /** Internal only **/ |
5d6ccf5c | 63 | struct object *lookup_object(const unsigned char *sha1); |
6eb8ae00 | 64 | |
89e4202f DB |
65 | /** Returns the object, having looked it up as being the given type. **/ |
66 | struct object *lookup_object_type(const unsigned char *sha1, const char *type); | |
67 | ||
5d6ccf5c | 68 | void created_object(const unsigned char *sha1, struct object *obj); |
6eb8ae00 | 69 | |
e9eefa67 | 70 | /** Returns the object, having parsed it to find out what it is. **/ |
5d6ccf5c | 71 | struct object *parse_object(const unsigned char *sha1); |
e9eefa67 | 72 | |
66e481b0 DB |
73 | /** Returns the object, with potentially excess memory allocated. **/ |
74 | struct object *lookup_unknown_object(const unsigned char *sha1); | |
75 | ||
27dedf0c JH |
76 | struct object_refs *alloc_object_refs(unsigned count); |
77 | void set_object_refs(struct object *obj, struct object_refs *refs); | |
6eb8ae00 DB |
78 | |
79 | void mark_reachable(struct object *obj, unsigned int mask); | |
80 | ||
66e481b0 DB |
81 | struct object_list *object_list_insert(struct object *item, |
82 | struct object_list **list_p); | |
83 | ||
680bab3d DB |
84 | void object_list_append(struct object *item, |
85 | struct object_list **list_p); | |
86 | ||
66e481b0 DB |
87 | unsigned object_list_length(struct object_list *list); |
88 | ||
89 | int object_list_contains(struct object_list *list, struct object *obj); | |
90 | ||
1f1e895f LT |
91 | /* Object array handling .. */ |
92 | void add_object_array(struct object *obj, const char *name, struct object_array *array); | |
93 | ||
6eb8ae00 | 94 | #endif /* OBJECT_H */ |