struct transport;

 * Take callback data, and return next object name in the buffer.
 * When called after returning the name for the last object, return -1
 * to signal EOF, otherwise return 0.
typedef int (*sha1_iterate_fn)(void *, unsigned char [20]);

 * Make sure that our object store has all the commits necessary to
 * connect the ancestry chain to some of our existing refs, and all
 * the trees and blobs that these commits use.
 * Return 0 if Ok, non zero otherwise (i.e. some missing objects)
extern int check_everything_connected(sha1_iterate_fn, int quiet, void *cb_data);
extern int check_shallow_connected(sha1_iterate_fn, int quiet, void *cb_data,
				   const char *shallow_file);
extern int check_everything_connected_with_transport(sha1_iterate_fn, int quiet,
						     void *cb_data,
						     struct transport *transport);

#endif /* CONNECTED_H */