+static OFF_T last_ofs;
+static struct timeval print_time;
+static struct timeval start_time;
+static OFF_T start_ofs;
+
+static unsigned long msdiff(struct timeval *t1, struct timeval *t2)
+{
+ return (t2->tv_sec - t1->tv_sec) * 1000
+ + (t2->tv_usec - t1->tv_usec) / 1000;
+}
+
+
+/**
+ * @param ofs Current position in file
+ * @param size Total size of file
+ * @param is_last True if this is the last time progress will be
+ * printed for this file, so we should output a newline. (Not
+ * necessarily the same as all bytes being received.)
+ **/
+static void rprint_progress(OFF_T ofs, OFF_T size, struct timeval *now,
+ int is_last)
+{
+ int pct = (ofs == size) ? 100 : (int)((100.0*ofs)/size);
+ unsigned long diff = msdiff(&start_time, now);
+ double rate = diff ? (double) (ofs-start_ofs) * 1000.0 / diff / 1024.0 : 0;
+ const char *units;
+ /* If we've finished transferring this file, show the time taken;
+ * otherwise show expected time to complete. That's kind of
+ * inconsistent, but people can probably cope. Hopefully we'll
+ * get more consistent and complete progress reporting soon. --
+ * mbp */
+ double remain = is_last
+ ? (double) diff / 1000.0
+ : rate ? (double) (size-ofs) / rate / 1000.0 : 0.0;
+ int remain_h, remain_m, remain_s;
+
+ if (rate > 1024*1024) {
+ rate /= 1024.0 * 1024.0;
+ units = "GB/s";
+ } else if (rate > 1024) {
+ rate /= 1024.0;
+ units = "MB/s";
+ } else {
+ units = "kB/s";
+ }
+
+ remain_s = (int) remain % 60;
+ remain_m = (int) (remain / 60.0) % 60;
+ remain_h = (int) (remain / 3600.0);
+
+ rprintf(FINFO, "%12.0f %3d%% %7.2f%s %4d:%02d:%02d%s",
+ (double) ofs, pct, rate, units,
+ remain_h, remain_m, remain_s,
+ is_last ? "\n" : "\r");
+}