Andrew's git - gitweb.git/blob

   1#ifndef OBJECT_H
   2#define OBJECT_H
   3
   4struct object_list {
   5        struct object *item;
   6        struct object_list *next;
   7};
   8
   9struct object_refs {
  10        unsigned count;
  11        struct object *base;
  12        struct object *ref[FLEX_ARRAY]; /* more */
  13};
  14
  15struct 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
  24#define TYPE_BITS   3
  25#define FLAG_BITS  27
  26
  27#define TYPE_NONE   0
  28#define TYPE_BLOB   1
  29#define TYPE_TREE   2
  30#define TYPE_COMMIT 3
  31#define TYPE_TAG    4
  32#define TYPE_BAD    5
  33
  34struct object {
  35        unsigned parsed : 1;
  36        unsigned used : 1;
  37        unsigned type : TYPE_BITS;
  38        unsigned flags : FLAG_BITS;
  39        unsigned char sha1[20];
  40};
  41
  42extern int track_object_refs;
  43extern int obj_allocs;
  44extern struct object **objs;
  45extern const char *type_names[];
  46
  47static inline const char *typename(unsigned int type)
  48{
  49        return type_names[type > TYPE_TAG ? TYPE_BAD : type];
  50}
  51
  52extern struct object_refs *lookup_object_refs(struct object *);
  53
  54/** Internal only **/
  55struct object *lookup_object(const unsigned char *sha1);
  56
  57/** Returns the object, having looked it up as being the given type. **/
  58struct object *lookup_object_type(const unsigned char *sha1, const char *type);
  59
  60void created_object(const unsigned char *sha1, struct object *obj);
  61
  62/** Returns the object, having parsed it to find out what it is. **/
  63struct object *parse_object(const unsigned char *sha1);
  64
  65/** Returns the object, with potentially excess memory allocated. **/
  66struct object *lookup_unknown_object(const unsigned  char *sha1);
  67
  68struct object_refs *alloc_object_refs(unsigned count);
  69void set_object_refs(struct object *obj, struct object_refs *refs);
  70
  71void mark_reachable(struct object *obj, unsigned int mask);
  72
  73struct object_list *object_list_insert(struct object *item, 
  74                                       struct object_list **list_p);
  75
  76void object_list_append(struct object *item,
  77                        struct object_list **list_p);
  78
  79unsigned object_list_length(struct object_list *list);
  80
  81int object_list_contains(struct object_list *list, struct object *obj);
  82
  83/* Object array handling .. */
  84void add_object_array(struct object *obj, const char *name, struct object_array *array);
  85
  86#endif /* OBJECT_H */