struct object_list *next;
};
+struct object_array {
+ unsigned int nr;
+ unsigned int alloc;
+ struct object_array_entry {
+ struct object *item;
+ /*
+ * name or NULL. If non-NULL, the memory pointed to
+ * is owned by this object *except* if it points at
+ * object_array_slopbuf, which is a static copy of the
+ * empty string.
+ */
+ char *name;
+ char *path;
+ unsigned mode;
+ } *objects;
+};
+
+#define OBJECT_ARRAY_INIT { 0, 0, NULL }
+
+#define TYPE_BITS 3
+/*
+ * object flag allocation:
+ * revision.h: 0---------10 26
+ * fetch-pack.c: 0---4
+ * walker.c: 0-2
+ * upload-pack.c: 11----------------19
+ * builtin/blame.c: 12-13
+ * bisect.c: 16
+ * bundle.c: 16
+ * http-push.c: 16-----19
+ * commit.c: 16-----19
+ * sha1_name.c: 20
+ */
+#define FLAG_BITS 27
+
+/*
+ * The object type is stored in 3 bits.
+ */
struct object {
unsigned parsed : 1;
unsigned used : 1;
- unsigned delta : 1;
- unsigned int flags;
- unsigned char sha1[20];
- const char *type;
- struct object_list *refs;
- struct object_list *attached_deltas;
- void *util;
+ unsigned type : TYPE_BITS;
+ unsigned flags : FLAG_BITS;
+ struct object_id oid;
};
-extern int nr_objs;
-extern struct object **objs;
+extern const char *typename(unsigned int type);
+extern int type_from_string_gently(const char *str, ssize_t, int gentle);
+#define type_from_string(str) type_from_string_gently(str, -1, 0)
+
+/*
+ * Return the current number of buckets in the object hashmap.
+ */
+extern unsigned int get_max_object_index(void);
+
+/*
+ * Return the object from the specified bucket in the object hashmap.
+ */
+extern struct object *get_indexed_object(unsigned int);
+
+/*
+ * This can be used to see if we have heard of the object before, but
+ * it can return "yes we have, and here is a half-initialised object"
+ * for an object that we haven't loaded/parsed yet.
+ *
+ * When parsing a commit to create an in-core commit object, its
+ * parents list holds commit objects that represent its parents, but
+ * they are expected to be lazily initialized and do not know what
+ * their trees or parents are yet. When this function returns such a
+ * half-initialised objects, the caller is expected to initialize them
+ * by calling parse_object() on them.
+ */
+struct object *lookup_object(const unsigned char *sha1);
+
+extern void *create_object(const unsigned char *sha1, void *obj);
+
+void *object_as_type(struct object *obj, enum object_type type, int quiet);
+
+/*
+ * Returns the object, having parsed it to find out what it is.
+ *
+ * Returns NULL if the object is missing or corrupt.
+ */
+struct object *parse_object(const unsigned char *sha1);
+
+/*
+ * Like parse_object, but will die() instead of returning NULL. If the
+ * "name" parameter is not NULL, it is included in the error message
+ * (otherwise, the sha1 hex is given).
+ */
+struct object *parse_object_or_die(const unsigned char *sha1, const char *name);
+
+/* Given the result of read_sha1_file(), returns the object after
+ * parsing it. eaten_p indicates if the object has a borrowed copy
+ * of buffer and the caller should not free() it.
+ */
+struct object *parse_object_buffer(const unsigned char *sha1, enum object_type type, unsigned long size, void *buffer, int *eaten_p);
+
+/** Returns the object, with potentially excess memory allocated. **/
+struct object *lookup_unknown_object(const unsigned char *sha1);
+
+struct object_list *object_list_insert(struct object *item,
+ struct object_list **list_p);
+
+int object_list_contains(struct object_list *list, struct object *obj);
+
+/* Object array handling .. */
+void add_object_array(struct object *obj, const char *name, struct object_array *array);
+void add_object_array_with_path(struct object *obj, const char *name, struct object_array *array, unsigned mode, const char *path);
-struct object *lookup_object(unsigned char *sha1);
+typedef int (*object_array_each_func_t)(struct object_array_entry *, void *);
-void created_object(unsigned char *sha1, struct object *obj);
+/*
+ * Apply want to each entry in array, retaining only the entries for
+ * which the function returns true. Preserve the order of the entries
+ * that are retained.
+ */
+void object_array_filter(struct object_array *array,
+ object_array_each_func_t want, void *cb_data);
-/** Returns the object, having parsed it to find out what it is. **/
-struct object *parse_object(unsigned char *sha1);
+/*
+ * Remove from array all but the first entry with a given name.
+ * Warning: this function uses an O(N^2) algorithm.
+ */
+void object_array_remove_duplicates(struct object_array *array);
-void add_ref(struct object *refer, struct object *target);
+/*
+ * Remove any objects from the array, freeing all used memory; afterwards
+ * the array is ready to store more objects with add_object_array().
+ */
+void object_array_clear(struct object_array *array);
-void mark_reachable(struct object *obj, unsigned int mask);
+void clear_object_flags(unsigned flags);
#endif /* OBJECT_H */