Struct FastIn 

pub struct FastIn<'a> {

    pub buf: &'a [u8],
    pub base: u64,
    pub from: usize,
    pub to: usize,
    pub small: &'a mut [u32],
    pub small_log: u32,
    pub mls: u32,
    pub long: &'a mut [u32],
    pub long_log: u32,
    pub max_dist: usize,
    pub rep: [u32; 2],
    pub strength: u32,
    pub out: &'a mut Vec<Match>,
}

The inputs of zstd_fast.

Fields

buf: &'a [u8]

base: u64

Stream position of buf[0].

from: usize

to: usize

End of the block (from <= to <= buf.len()); matches never reach past it.

small: &'a mut [u32]

Short-hash table (a power of two entries) over mls (5 to 8) bytes, small_log bits.

small_log: u32

mls: u32

long: &'a mut [u32]

Long-hash table over 8 bytes for double fast (long_log > 0, a power of two entries).

long_log: u32

max_dist: usize

rep: [u32; 2]

strength: u32

Skip one more byte for every 1 << strength bytes without a match (zstd: 8).

out: &'a mut Vec<Match>