Add git-for-each-ref: helper for language bindings

[git.git] / object.h

diff --git a/object.h b/object.h
index 5af530da5decf0abbfafeee041143c0acd0d600a..caee733cdeda28b1679848fa9be4be870420b54a 100644 (file)
--- a/object.h
+++ b/object.h
@@ -4,21 +4,49 @@
 struct object_list {
        struct object *item;
        struct object_list *next;
-       const char *name;
 };
 
+struct object_refs {
+       unsigned count;
+       struct object *base;
+       struct object *ref[FLEX_ARRAY]; /* more */
+};
+
+struct object_array {
+       unsigned int nr;
+       unsigned int alloc;
+       struct object_array_entry {
+               struct object *item;
+               const char *name;
+       } *objects;
+};
+
+#define TYPE_BITS   3
+#define FLAG_BITS  27
+
+/*
+ * The object type is stored in 3 bits.
+ */
 struct object {
        unsigned parsed : 1;
        unsigned used : 1;
-       unsigned int flags;
+       unsigned type : TYPE_BITS;
+       unsigned flags : FLAG_BITS;
        unsigned char sha1[20];
-       const char *type;
-       struct object_list *refs;
-       void *util;
 };
 
-extern int nr_objs;
-extern struct object **objs;
+extern int track_object_refs;
+extern const char *type_names[9];
+
+extern unsigned int get_max_object_index(void);
+extern struct object *get_indexed_object(unsigned int);
+
+static inline const char *typename(unsigned int type)
+{
+       return type_names[type > OBJ_BAD ? OBJ_BAD : type];
+}
+
+extern struct object_refs *lookup_object_refs(struct object *);
 
 /** Internal only **/
 struct object *lookup_object(const unsigned char *sha1);
@@ -31,18 +59,31 @@ void created_object(const unsigned char *sha1, struct object *obj);
 /** Returns the object, having parsed it to find out what it is. **/
 struct object *parse_object(const unsigned char *sha1);
 
+/* 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, const char *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);
 
-void add_ref(struct object *refer, struct object *target);
+struct object_refs *alloc_object_refs(unsigned count);
+void set_object_refs(struct object *obj, struct object_refs *refs);
 
 void mark_reachable(struct object *obj, unsigned int mask);
 
 struct object_list *object_list_insert(struct object *item, 
                                       struct object_list **list_p);
 
+void object_list_append(struct object *item,
+                       struct object_list **list_p);
+
 unsigned object_list_length(struct object_list *list);
 
 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);
+
 #endif /* OBJECT_H */