Struct Encoder 

pub struct Encoder {
    pub huffman: bool,
    pub indexing: bool,
    /* private fields */
}

A stateful header block encoder.

Exact static or dynamic matches are sent as indexed fields; other fields are literals with incremental indexing, except sensitive fields (never indexed), fields whose values rarely repeat, and fields larger than half the table (without indexing). Strings are Huffman coded when that is shorter.

Fields

huffman: bool

Use Huffman coding when it is shorter (default true).

indexing: bool

Add literals to the dynamic table (default true).

Implementations

impl Encoder

pub fn new(limit: usize) -> Self

An encoder that keeps at most limit bytes of dynamic table. The peer’s table starts at 4096 (the protocol default); a smaller limit is announced in the first block.

pub fn set_peer_max_table_size(&mut self, peer: usize)

Applies the peer’s SETTINGS_HEADER_TABLE_SIZE. The encoder uses the smaller of that and its own limit, and announces the change at the start of the next block.

pub fn table_size(&self) -> usize

Current dynamic table size in octets.

pub fn table_len(&self) -> usize

Number of dynamic table entries.

pub fn begin_block(&mut self, out: &mut Vec<u8>)

Starts a header block: emits any pending dynamic table size updates (RFC 7541 §4.2).

pub fn encode(&mut self, fields: &[(&[u8], &[u8])], out: &mut Vec<u8>)

Encodes a whole header block.

pub fn field(&mut self, name: &[u8], value: &[u8], out: &mut Vec<u8>)

Encodes one field of the current block (after Encoder::begin_block).

Trait Implementations

impl Clone for Encoder

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Encoder

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

Formats the value using the given formatter.

impl Default for Encoder

fn default() -> Self

Returns the “default value” for a type.