1#ifndef PROGRESS_H2#define PROGRESS_H34struct progress;56void display_throughput(struct progress *progress, off_t total);7int display_progress(struct progress *progress, unsigned n);8struct progress *start_progress(const char *title, unsigned total);9struct progress *start_delayed_progress(const char *title, unsigned total);10void stop_progress(struct progress **progress);11void stop_progress_msg(struct progress **progress, const char *msg);1213#endif