Struct FixedHeader 

pub struct FixedHeader { /* private fields */ }

Packet type from a byte

         7                          3                          0
         +--------------------------+--------------------------+
byte 1   | MQTT Control Packet Type | Flags for each type      |
         +--------------------------+--------------------------+
         |         Remaining Bytes Len  (1/2/3/4 bytes)        |
         +-----------------------------------------------------+

<https://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc385349207>

Implementations

impl FixedHeader

pub const fn new( byte1: u8, remaining_len_len: usize, remaining_len: usize, ) -> FixedHeader

pub const fn packet_type(&self) -> Result<PacketType, Error>

Returns the MQTT packet type represented by this fixed header.

Errors

Returns an error if the fixed-header flags are invalid for the decoded packet type.

pub const fn frame_length(&self) -> usize

Returns the size of full packet (fixed header + variable header + payload) Fixed header is enough to get the size of a frame in the stream

Trait Implementations

impl Clone for FixedHeader

fn clone(&self) -> FixedHeader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FixedHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq for FixedHeader

fn eq(&self, other: &FixedHeader) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for FixedHeader

fn partial_cmp(&self, other: &FixedHeader) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for FixedHeader

impl Eq for FixedHeader

impl StructuralPartialEq for FixedHeader