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LevelConfig

Struct LevelConfig 

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pub struct LevelConfig {
    pub hash_log: u8,
    pub chain_log: u8,
    pub search_depth: u32,
    pub lazy_matching: bool,
    pub lazy_min_gain: usize,
    pub target_block_size: usize,
}
Expand description

Compression level configuration.

Controls the trade-off between compression speed and ratio. Higher levels use larger hash/chain tables and deeper search, producing better compression at the cost of more CPU time.

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§hash_log: u8

Hash log: hash table size = 1 << hash_log.

§chain_log: u8

Chain log: chain table size = 1 << chain_log. Set to 0 to disable chaining.

§search_depth: u32

Maximum number of positions checked when following a hash chain.

§lazy_matching: bool

Whether to use lazy matching (check position P+1 before committing to P).

§lazy_min_gain: usize

Minimum length improvement required for a lazy match to replace the current.

§target_block_size: usize

Target block size in bytes for block splitting.

Implementations§

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impl LevelConfig

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pub fn for_level(level: i32) -> Self

Get configuration for a given compression level (1-22).

Levels are clamped to the range [1, 22]. Higher levels produce better compression at the cost of more memory and CPU time.

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impl Clone for LevelConfig

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fn clone(&self) -> LevelConfig

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for LevelConfig

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

Formats the value using the given formatter. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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