npr::protocol::segmenter namespace

#include <npr/protocol.hpp>

Helpers/constants for segmenter byte format used by NPR IPv4 segmentation.

Functions

auto last_segment(const uint8_t segmenter_byte) -> bool constexpr

Returns true when segmenter byte marks last segment in packet.

auto make(const uint8_t packet_counter_value, const bool is_last_segment, const uint8_t segment_counter_value) -> uint8_t constexpr

Builds segmenter byte from packet counter, last flag and segment counter.

auto packet_counter(const uint8_t segmenter_byte) -> uint8_t constexpr

Extracts packet-counter nibble from segmenter byte.

auto segment_counter(const uint8_t segmenter_byte) -> uint8_t constexpr

Extracts per-packet segment index from segmenter byte.

Variables

size_t kIpv4MtuBytes constexpr

uint8_t kLastMask constexpr

size_t kMaxPacketBytes constexpr

size_t kMaxSegmentPayloadBytes constexpr

uint8_t kMaxSegmentsPerPacket constexpr

uint8_t kPacketCounterMask constexpr

uint8_t kPacketCounterModulo constexpr

uint8_t kPacketCounterShift constexpr

uint8_t kSegmentCounterMask constexpr