Struct EngineConfiguration 

pub struct EngineConfiguration {
    pub workers: usize,
    pub block_size: u32,
    pub compression_level: u8,
    pub max_expansion_ratio: f64,
    pub max_decompression_ratio: f64,
    pub checksums: bool,
    pub progress: Option<Arc<Mutex<ProgressCallback>>>,
    /* private fields */
}

Configuration for the parallel compression/decompression engine.

Construct via EngineConfiguration::builder() or use the Default impl.

Fields

workers: usize

Number of rayon worker threads. 0 = rayon default (logical CPU count).

block_size: u32

Uncompressed block size in bytes. Range: 64 KB – 256 MB.

compression_level: u8

DEFLATE compression level 0–9.

max_expansion_ratio: f64

If compressed / uncompressed > max_expansion_ratio, store block raw.

max_decompression_ratio: f64

During decompression, halt if total bytes would exceed compressed_file_size * max_decompression_ratio.

checksums: bool

Enable per-block CRC32 checksums.

progress: Option<Arc<Mutex<ProgressCallback>>>

Optional progress callback.

Implementations

impl EngineConfiguration

pub fn builder() -> EngineConfigurationBuilder

Create a new builder.

Trait Implementations

impl Clone for EngineConfiguration

fn clone(&self) -> EngineConfiguration

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for EngineConfiguration

fn default() -> Self

Returns the “default value” for a type.