6 struct object_list *next;
12 struct object_array_entry {
15 * name or NULL. If non-NULL, the memory pointed to
16 * is owned by this object *except* if it points at
17 * object_array_slopbuf, which is a static copy of the
26 #define OBJECT_ARRAY_INIT { 0, 0, NULL }
30 * object flag allocation:
31 * revision.h: 0---------10 26
34 * upload-pack.c: 4 11----------------19
35 * builtin/blame.c: 12-13
38 * http-push.c: 16-----19
41 * list-objects-filter.c: 21
42 * builtin/fsck.c: 0--3
47 * The object type is stored in 3 bits.
51 unsigned type : TYPE_BITS;
52 unsigned flags : FLAG_BITS;
56 extern const char *type_name(unsigned int type);
57 extern int type_from_string_gently(const char *str, ssize_t, int gentle);
58 #define type_from_string(str) type_from_string_gently(str, -1, 0)
61 * Return the current number of buckets in the object hashmap.
63 extern unsigned int get_max_object_index(void);
66 * Return the object from the specified bucket in the object hashmap.
68 extern struct object *get_indexed_object(unsigned int);
71 * This can be used to see if we have heard of the object before, but
72 * it can return "yes we have, and here is a half-initialised object"
73 * for an object that we haven't loaded/parsed yet.
75 * When parsing a commit to create an in-core commit object, its
76 * parents list holds commit objects that represent its parents, but
77 * they are expected to be lazily initialized and do not know what
78 * their trees or parents are yet. When this function returns such a
79 * half-initialised objects, the caller is expected to initialize them
80 * by calling parse_object() on them.
82 struct object *lookup_object(const unsigned char *sha1);
84 extern void *create_object(const unsigned char *sha1, void *obj);
86 void *object_as_type(struct object *obj, enum object_type type, int quiet);
89 * Returns the object, having parsed it to find out what it is.
91 * Returns NULL if the object is missing or corrupt.
93 struct object *parse_object(const struct object_id *oid);
96 * Like parse_object, but will die() instead of returning NULL. If the
97 * "name" parameter is not NULL, it is included in the error message
98 * (otherwise, the hex object ID is given).
100 struct object *parse_object_or_die(const struct object_id *oid, const char *name);
102 /* Given the result of read_sha1_file(), returns the object after
103 * parsing it. eaten_p indicates if the object has a borrowed copy
104 * of buffer and the caller should not free() it.
106 struct object *parse_object_buffer(const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p);
108 /** Returns the object, with potentially excess memory allocated. **/
109 struct object *lookup_unknown_object(const unsigned char *sha1);
111 struct object_list *object_list_insert(struct object *item,
112 struct object_list **list_p);
114 int object_list_contains(struct object_list *list, struct object *obj);
116 /* Object array handling .. */
117 void add_object_array(struct object *obj, const char *name, struct object_array *array);
118 void add_object_array_with_path(struct object *obj, const char *name, struct object_array *array, unsigned mode, const char *path);
121 * Returns NULL if the array is empty. Otherwise, returns the last object
122 * after removing its entry from the array. Other resources associated
123 * with that object are left in an unspecified state and should not be
126 struct object *object_array_pop(struct object_array *array);
128 typedef int (*object_array_each_func_t)(struct object_array_entry *, void *);
131 * Apply want to each entry in array, retaining only the entries for
132 * which the function returns true. Preserve the order of the entries
135 void object_array_filter(struct object_array *array,
136 object_array_each_func_t want, void *cb_data);
139 * Remove from array all but the first entry with a given name.
140 * Warning: this function uses an O(N^2) algorithm.
142 void object_array_remove_duplicates(struct object_array *array);
145 * Remove any objects from the array, freeing all used memory; afterwards
146 * the array is ready to store more objects with add_object_array().
148 void object_array_clear(struct object_array *array);
150 void clear_object_flags(unsigned flags);
153 * Clear the specified object flags from all in-core commit objects.
155 extern void clear_commit_marks_all(unsigned int flags);
157 #endif /* OBJECT_H */