extern int hold_locked_index(struct lock_file *, int);
extern int commit_locked_index(struct lock_file *);
extern void set_alternate_index_output(const char *);
-
+extern int close_lock_file(struct lock_file *);
extern void rollback_lock_file(struct lock_file *);
extern int delete_ref(const char *, const unsigned char *sha1);
extern void pack_report(void);
extern int open_pack_index(struct packed_git *);
extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
+extern void close_pack_windows(struct packed_git *);
extern void unuse_pack(struct pack_window **);
extern struct packed_git *add_packed_git(const char *, int, int);
extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);