Struct MmapStorage

pub struct MmapStorage { /* private fields */ }

A backend that uses an nonymous mmap.

The Backend automatically creates bigger map on demand using following strategy:

• If new data size allows, multiply size by 2.
• Otherwise new data size is used.

Note that mmap is never shrink back.

Use Backend methods to read and write into it.

Implementations

impl MmapStorage

pub fn new() -> BackendResult<Self>

Creates new storage with 1024 bytes.

pub fn with_size(len: usize) -> BackendResult<Self>

Creates new storage with custom size.

Trait Implementations

impl Backend for MmapStorage

fn get_data(&mut self) -> BackendResult<Vec<u8>>

Read the all data from the backend.

fn put_data(&mut self, data: &[u8]) -> BackendResult<()>

Write the whole slice to the backend.

impl Debug for MmapStorage

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

Formats the value using the given formatter.