summaryrefslogtreecommitdiff
path: root/object.h
blob: 036bd66fe9b6591e959e6df51160e636ab1a682e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
#ifndef OBJECT_H
#define OBJECT_H
 
struct object_list {
	struct object *item;
	struct object_list *next;
};
 
struct object_refs {
	unsigned count;
	struct object *ref[FLEX_ARRAY]; /* more */
};
 
struct object_array {
	unsigned int nr;
	unsigned int alloc;
	struct object_array_entry {
		struct object *item;
		const char *name;
		unsigned mode;
	} *objects;
};
 
#define TYPE_BITS   3
#define FLAG_BITS  27
 
/*
 * The object type is stored in 3 bits.
 */
struct object {
	unsigned parsed : 1;
	unsigned used : 1;
	unsigned type : TYPE_BITS;
	unsigned flags : FLAG_BITS;
	unsigned char sha1[20];
};
 
extern const char *typename(unsigned int type);
extern int type_from_string(const char *str);
 
extern unsigned int get_max_object_index(void);
extern struct object *get_indexed_object(unsigned int);
 
/** Internal only **/
struct object *lookup_object(const unsigned char *sha1);
 
extern void *create_object(const unsigned char *sha1, int type, void *obj);
 
/** Returns the object, having parsed it to find out what it is. **/
struct object *parse_object(const unsigned char *sha1);
 
/* Given the result of read_sha1_file(), returns the object after
 * parsing it.  eaten_p indicates if the object has a borrowed copy
 * of buffer and the caller should not free() it.
 */
struct object *parse_object_buffer(const unsigned char *sha1, enum object_type type, unsigned long size, void *buffer, int *eaten_p);
 
/** Returns the object, with potentially excess memory allocated. **/
struct object *lookup_unknown_object(const unsigned  char *sha1);
 
struct object_list *object_list_insert(struct object *item,
				       struct object_list **list_p);
 
void object_list_append(struct object *item,
			struct object_list **list_p);
 
unsigned object_list_length(struct object_list *list);
 
int object_list_contains(struct object_list *list, struct object *obj);
 
/* Object array handling .. */
void add_object_array(struct object *obj, const char *name, struct object_array *array);
void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode);
 
#endif /* OBJECT_H */