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
32 * fetch-pack.c: 0----5
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
43 * builtin/index-pack.c: 2021
44 * builtin/pack-objects.c: 20
45 * builtin/reflog.c: 10--12
46 * builtin/show-branch.c: 0-------------------------------------------26
47 * builtin/unpack-objects.c: 2021
52 * The object type is stored in 3 bits.
56 unsigned type : TYPE_BITS;
57 unsigned flags : FLAG_BITS;
61 extern const char *type_name(unsigned int type);
62 extern int type_from_string_gently(const char *str, ssize_t, int gentle);
63 #define type_from_string(str) type_from_string_gently(str, -1, 0)
66 * Return the current number of buckets in the object hashmap.
68 extern unsigned int get_max_object_index(void);
71 * Return the object from the specified bucket in the object hashmap.
73 extern struct object *get_indexed_object(unsigned int);
76 * This can be used to see if we have heard of the object before, but
77 * it can return "yes we have, and here is a half-initialised object"
78 * for an object that we haven't loaded/parsed yet.
80 * When parsing a commit to create an in-core commit object, its
81 * parents list holds commit objects that represent its parents, but
82 * they are expected to be lazily initialized and do not know what
83 * their trees or parents are yet. When this function returns such a
84 * half-initialised objects, the caller is expected to initialize them
85 * by calling parse_object() on them.
87 struct object *lookup_object(const unsigned char *sha1);
89 extern void *create_object(const unsigned char *sha1, void *obj);
91 void *object_as_type(struct object *obj, enum object_type type, int quiet);
94 * Returns the object, having parsed it to find out what it is.
96 * Returns NULL if the object is missing or corrupt.
98 struct object *parse_object(const struct object_id *oid);
101 * Like parse_object, but will die() instead of returning NULL. If the
102 * "name" parameter is not NULL, it is included in the error message
103 * (otherwise, the hex object ID is given).
105 struct object *parse_object_or_die(const struct object_id *oid, const char *name);
107 /* Given the result of read_sha1_file(), returns the object after
108 * parsing it. eaten_p indicates if the object has a borrowed copy
109 * of buffer and the caller should not free() it.
111 struct object *parse_object_buffer(const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p);
113 /** Returns the object, with potentially excess memory allocated. **/
114 struct object *lookup_unknown_object(const unsigned char *sha1);
116 struct object_list *object_list_insert(struct object *item,
117 struct object_list **list_p);
119 int object_list_contains(struct object_list *list, struct object *obj);
121 /* Object array handling .. */
122 void add_object_array(struct object *obj, const char *name, struct object_array *array);
123 void add_object_array_with_path(struct object *obj, const char *name, struct object_array *array, unsigned mode, const char *path);
126 * Returns NULL if the array is empty. Otherwise, returns the last object
127 * after removing its entry from the array. Other resources associated
128 * with that object are left in an unspecified state and should not be
131 struct object *object_array_pop(struct object_array *array);
133 typedef int (*object_array_each_func_t)(struct object_array_entry *, void *);
136 * Apply want to each entry in array, retaining only the entries for
137 * which the function returns true. Preserve the order of the entries
140 void object_array_filter(struct object_array *array,
141 object_array_each_func_t want, void *cb_data);
144 * Remove from array all but the first entry with a given name.
145 * Warning: this function uses an O(N^2) algorithm.
147 void object_array_remove_duplicates(struct object_array *array);
150 * Remove any objects from the array, freeing all used memory; afterwards
151 * the array is ready to store more objects with add_object_array().
153 void object_array_clear(struct object_array *array);
155 void clear_object_flags(unsigned flags);
158 * Clear the specified object flags from all in-core commit objects.
160 extern void clear_commit_marks_all(unsigned int flags);
162 #endif /* OBJECT_H */