Andrew's git / gitweb.git /
c537b4b72acabc8b2425ca9bb50c890e730aa788
   1#ifndef OBJECT_H
   2#define OBJECT_H
   3
   4struct object_list {
   5        struct object *item;
   6        struct object_list *next;
   7        const char *name;
   8};
   9
  10struct object_refs {
  11        unsigned count;
  12        struct object *base;
  13        struct object *ref[FLEX_ARRAY]; /* more */
  14};
  15
  16#define TYPE_BITS   3
  17#define FLAG_BITS  27
  18
  19#define TYPE_NONE   0
  20#define TYPE_BLOB   1
  21#define TYPE_TREE   2
  22#define TYPE_COMMIT 3
  23#define TYPE_TAG    4
  24#define TYPE_BAD    5
  25
  26struct object {
  27        unsigned parsed : 1;
  28        unsigned used : 1;
  29        unsigned type : TYPE_BITS;
  30        unsigned flags : FLAG_BITS;
  31        unsigned char sha1[20];
  32};
  33
  34extern int track_object_refs;
  35extern int obj_allocs;
  36extern struct object **objs;
  37extern const char *type_names[];
  38
  39static inline const char *typename(unsigned int type)
  40{
  41        return type_names[type > TYPE_TAG ? TYPE_BAD : type];
  42}
  43
  44extern struct object_refs *lookup_object_refs(struct object *);
  45
  46/** Internal only **/
  47struct object *lookup_object(const unsigned char *sha1);
  48
  49/** Returns the object, having looked it up as being the given type. **/
  50struct object *lookup_object_type(const unsigned char *sha1, const char *type);
  51
  52void created_object(const unsigned char *sha1, struct object *obj);
  53
  54/** Returns the object, having parsed it to find out what it is. **/
  55struct object *parse_object(const unsigned char *sha1);
  56
  57/** Returns the object, with potentially excess memory allocated. **/
  58struct object *lookup_unknown_object(const unsigned  char *sha1);
  59
  60struct object_refs *alloc_object_refs(unsigned count);
  61void set_object_refs(struct object *obj, struct object_refs *refs);
  62
  63void mark_reachable(struct object *obj, unsigned int mask);
  64
  65struct object_list *object_list_insert(struct object *item, 
  66                                       struct object_list **list_p);
  67
  68void object_list_append(struct object *item,
  69                        struct object_list **list_p);
  70
  71unsigned object_list_length(struct object_list *list);
  72
  73int object_list_contains(struct object_list *list, struct object *obj);
  74
  75#endif /* OBJECT_H */