Struct SkdbDirAlloc

pub struct SkdbDirAlloc {
    pub path: PathBuf,
    pub layers: Vec<PathBuf>,
    pub cursor: u32,
}

Directory Allocator

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Allocates within a directory that lives on the file-system with the layer order determined by the layer file names

Fields

path: PathBuf

the path of the directory database

layers: Vec<PathBuf>

the (sorted) paths of the layers in the database

cursor: u32

Implementations

impl SkdbDirAlloc

pub fn new(path: impl AsRef<Path>) -> Result<Self, Error>

Creates a new SkDB

pub fn load(path: impl AsRef<Path>) -> Result<Self, Error>

Loads a Skdb from a directory

Trait Implementations

impl<'a> Allocator<'a> for SkdbDirAlloc

fn load_layers(&self) -> Result<Vec<Layer<'a, Self::LayerStream>>, Error>

Loads the layer files from the directory

type LayerStream = File

The type of data stream the layers read and write to

fn add_layer(&mut self) -> Result<Layer<'a, Self::LayerStream>, Error>

Adds a read-write layer to the database

fn drop_top_layer(&mut self) -> Result<(), Error>

Removes the top layer from the database

fn rebase(&mut self, top_layer: usize) -> Result<(), Error>

Removes all the bottom layers except for the one specified (and above)