Enum CompressionAlgorithm 

pub enum CompressionAlgorithm {
    Zstd,
    Lz4,
    Gzip,
    Deflate,
    Snappy,
    Identity,
}

A supported value of the grpc-encoding header.

Variants

Zstd

Zstandard frames, compressed at level 1.

Lz4

LZ4 frames.

Gzip

RFC 1952 gzip streams.

Deflate

RFC 1950 zlib-wrapped deflate streams.

Snappy

Snappy raw blocks.

Identity

Uncompressed bytes.

Implementations

impl CompressionAlgorithm

pub const fn as_str(self) -> &'static str

The lowercase wire token used in gRPC encoding headers.

pub fn from_encoding(encoding: &str) -> Result<CompressionAlgorithm, Status>

Parses an exact, case-sensitive gRPC encoding token.

Errors

Returns Unimplemented for an unsupported encoding.

pub fn compress(self, input: &[u8]) -> Result<Vec<u8>, Status>

Compresses a complete message without applying the adaptive threshold.

Errors

Returns Internal if a compressor fails.

pub fn decompress( self, input: &[u8], max_size: usize, ) -> Result<Vec<u8>, Status>

Decodes a message with a strict limit on the returned byte count.

Streaming decoders read at most one byte beyond the limit and never reserve output memory from an untrusted advertised decompressed size. Zstd’s decoding window is capped at 16 MiB independently of this limit; LZ4 frame blocks are bounded by the format’s 4 MiB maximum.

Errors

Returns ResourceExhausted if output exceeds max_size, or Internal if the compressed stream is malformed.

Trait Implementations

impl Clone for CompressionAlgorithm

fn clone(&self) -> CompressionAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CompressionAlgorithm

impl Debug for CompressionAlgorithm

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

Formats the value using the given formatter.

impl Default for CompressionAlgorithm

fn default() -> CompressionAlgorithm

Returns the “default value” for a type.

impl Eq for CompressionAlgorithm

impl FromStr for CompressionAlgorithm

type Err = Status

The associated error which can be returned from parsing.

fn from_str( value: &str, ) -> Result<CompressionAlgorithm, <CompressionAlgorithm as FromStr>::Err>

Parses a string s to return a value of this type.

impl PartialEq for CompressionAlgorithm

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CompressionAlgorithm