- size_t packet_size; /* current packet size, in bits */
- size_t content_size; /* current content size, in bits */
- uint32_t *content_size_loc; /* pointer to current content size */
+ off_t mmap_base_offset; /* offset of start of packet in mmap, in bytes */
+ uint64_t packet_size; /* current packet size, in bits */
+ uint64_t content_size; /* current content size, in bits */
+ uint64_t *content_size_loc; /* pointer to current content size */