Struct BufferSet 

pub struct BufferSet {
    pub initial_handshake: Vec<u8>,
    pub read_buffer: Vec<u8>,
    pub write_buffer: Vec<u8>,
    pub column_definition_buffer: Vec<u8>,
}

A set of reusable buffers for MySQL protocol communication

Conn uses a single BufferSet for all its operations.

Fields

initial_handshake: Vec<u8>

Bytes are valid during Conn.

read_buffer: Vec<u8>

General-purpose read buffer Bytes are valid during an operation.

write_buffer: Vec<u8>

General-purpose write buffer It always has at least 4 bytes which is reserved for the first packet header. It is followed by payload bytes without considering 16MB split. Layout: [4-byte header space][payload that is possibly larger than 16MB] Bytes are valid during an operation.

column_definition_buffer: Vec<u8>

ColumnDefinition packets in one buffer Bytes are valid during an operation.

Implementations

impl BufferSet

pub fn new() -> Self

Create a new empty buffer set

pub fn with_initial_handshake(initial_handshake: Vec<u8>) -> Self

Create a new buffer set with the initial handshake packet

pub fn new_write_buffer(&mut self) -> &mut Vec<u8>

Clear the write buffer, reserve 4 bytes for the header, and return mutable access.

pub fn write_buffer_mut(&mut self) -> &mut Vec<u8>

Get mutable access to the write buffer.

pub fn write_buffer(&self) -> &[u8]

Get the write buffer for reading.

pub fn payload_len(&self) -> usize

Get the payload length (total buffer length minus 4-byte header).

Trait Implementations

impl Debug for BufferSet

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

Formats the value using the given formatter.

impl Default for BufferSet

fn default() -> Self

Returns the “default value” for a type.