Trait git_odb::pack::cache::DecodeEntry

pub trait DecodeEntry {
    fn put(
        &mut self, 
        pack_id: u32, 
        offset: u64, 
        data: &[u8], 
        kind: Kind, 
        compressed_size: usize
    );
    fn get(
        &mut self, 
        pack_id: u32, 
        offset: u64, 
        out: &mut Vec<u8>
    ) -> Option<(Kind, usize)>;
}

A trait to model putting objects at a given pack offset into a cache, and fetching them.

It is used to speed up pack traversals.

Required methods

fn put(
    &mut self,
    pack_id: u32,
    offset: u64,
    data: &[u8],
    kind: Kind,
    compressed_size: usize
)

Store a fully decoded object at offset of kind with compressed_size and data in the cache.

It is up to the cache implementation whether that actually happens or not.

fn get(
    &mut self,
    pack_id: u32,
    offset: u64,
    out: &mut Vec<u8>
) -> Option<(Kind, usize)>

Attempt to fetch the object at offset and store its decoded bytes in out, as previously stored with DecodeEntry::put(), and return its (object kind, decompressed_size)

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Implementors

impl DecodeEntry for MemoryCappedHashmap

fn put(
    &mut self,
    pack_id: u32,
    offset: u64,
    data: &[u8],
    kind: Kind,
    compressed_size: usize
)

fn get(
    &mut self,
    pack_id: u32,
    offset: u64,
    out: &mut Vec<u8>
) -> Option<(Kind, usize)>

impl DecodeEntry for Never

fn put(
    &mut self,
    _pack_id: u32,
    _offset: u64,
    _data: &[u8],
    _kind: Kind,
    _compressed_size: usize
)

fn get(
    &mut self,
    _pack_id: u32,
    _offset: u64,
    _out: &mut Vec<u8>
) -> Option<(Kind, usize)>

impl<const SIZE: usize> DecodeEntry for StaticLinkedList<SIZE>

fn put(
    &mut self,
    pack_id: u32,
    offset: u64,
    data: &[u8],
    kind: Kind,
    compressed_size: usize
)

fn get(
    &mut self,
    pack_id: u32,
    offset: u64,
    out: &mut Vec<u8>
) -> Option<(Kind, usize)>

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