Struct BuffWriter

pub struct BuffWriter<'a> {
    pub position: usize,
    /* private fields */
}

Buff writer is writing corresponding types to buffer (Byte array) and stores current position (later as cursor)

Fields

position: usize

Implementations

impl<'a> BuffWriter<'a>

pub fn new(buffer: &'a mut [u8], buff_len: usize) -> Self

pub fn get_n_byte(&mut self, n: usize) -> u8

Returns n-th Byte from the buffer to which is currently written.

pub fn get_rem_len(&mut self) -> Result<VariableByteInteger, RemLenError>

Return the remaining lenght of the packet from the buffer to which is packet written.

pub fn insert_ref( &mut self, len: usize, array: &[u8], ) -> Result<(), BufferError>

Writes (part of) an array to the buffer.

pub fn write_u8(&mut self, byte: u8) -> Result<(), BufferError>

Writes a single Byte to the buffer.

pub fn write_u16(&mut self, two_bytes: u16) -> Result<(), BufferError>

Writes the two Byte value to the buffer.

pub fn write_u32(&mut self, four_bytes: u32) -> Result<(), BufferError>

Writes the four Byte value to the buffer.

pub fn write_string_ref( &mut self, str: &EncodedString<'a>, ) -> Result<(), BufferError>

Writes the UTF-8 string type to the buffer.

pub fn write_binary_ref( &mut self, bin: &BinaryData<'a>, ) -> Result<(), BufferError>

Writes BinaryData to the buffer.

pub fn write_string_pair_ref( &mut self, str_pair: &StringPair<'a>, ) -> Result<(), BufferError>

Writes the string pair to the buffer.

pub fn write_variable_byte_int(&mut self, int: u32) -> Result<(), BufferError>

Encodes the u32 value into the VariableByteInteger and this value writes to the buffer.

pub fn write_properties<const LEN: usize>( &mut self, properties: &Vec<Property<'a>, LEN>, ) -> Result<(), BufferError>

Writes all properties from the properties Vec into the buffer.

pub fn write_topic_filters_ref<const MAX: usize>( &mut self, sub: bool, _len: usize, filters: &Vec<TopicFilter<'a>, MAX>, ) -> Result<(), BufferError>

Writes the topic filter Vec to the buffer. If the sub option is set to false, it will not write the sub_options only topic names.