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)        |
         +-----------------------------------------------------+

http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Figure_2.2_-

Implementations

impl FixedHeader

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

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

pub 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