Struct q_compress::ChunkMetadata

pub struct ChunkMetadata<T> where
    T: NumberLike,  {
    pub n: usize,
    pub compressed_body_size: usize,
    pub prefix_metadata: PrefixMetadata<T>,
}

The metadata of a .qco file chunk.

Each file may contain multiple metadata sections, so to count the entries, one must sum the count n for each chunk metadata. This can be done easily - see the fast_seeking.rs example. One can also create a rough histogram (or a histogram of deltas, if delta encoding was used) by aggregating chunk metadata.

Fields

n: usize

The count of numbers in the chunk.

compressed_body_size: usize

The compressed byte length of the compressed numbers that immediately follow this chunk metadata section.

prefix_metadata: PrefixMetadata<T>

How the chunk body was compressed.

Implementations

impl<T> ChunkMetadata<T> where
    T: NumberLike, 

pub fn parse_from(
    reader: &mut BitReader<'_>,
    flags: &Flags
) -> QCompressResult<Self>

pub fn write_to(&self, writer: &mut BitWriter, flags: &Flags)

Trait Implementations

impl<T: Clone> Clone for ChunkMetadata<T> where
    T: NumberLike, 

fn clone(&self) -> ChunkMetadata<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for ChunkMetadata<T> where
    T: NumberLike, 

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

Formats the value using the given formatter.

impl<T: PartialEq> PartialEq<ChunkMetadata<T>> for ChunkMetadata<T> where
    T: NumberLike, 

fn eq(&self, other: &ChunkMetadata<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ChunkMetadata<T>) -> bool

This method tests for !=.

impl<T> StructuralPartialEq for ChunkMetadata<T> where
    T: NumberLike,