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