tfc_fsize total_processed_src, total_processed_dst;
tfc_fsize delta_processed;
tfc_fsize genrandom_nr_bytes, genzero_nr_bytes;
+tfc_fsize rdpos = NOFSIZE;
int sfd, kfd = -1, dfd = 1;
struct stat s_stat;
size_t blksize = TFC_BLKSIZE, xtsblocks = TFC_XTSBLOCKS;