Struct StdStorage 

pub struct StdStorage { /* private fields */ }

一个基于 std::fs::File 的 NorFlash 实现，用于桌面环境。

通过 LRU 缓存高效管理文件句柄。

Implementations

impl StdStorage

pub fn new<P: AsRef<Path>>( path: P, db_name: &str, sec_size: u32, capacity: u32, strategy: FileStrategy, ) -> Result<Self, Error>

创建一个新的 StdStorage 实例。

Trait Implementations

impl ErrorType for StdStorage

type Error = Error

Errors returned by this NOR flash.

impl NorFlash for StdStorage

const WRITE_SIZE: usize = 1usize

The minumum number of bytes the storage peripheral can write

const ERASE_SIZE: usize = 4_096usize

The minumum number of bytes the storage peripheral can erase

fn erase(&mut self, from: u32, to: u32) -> Result<(), Self::Error>

Erase the given storage range, clearing all data within [from..to]. The given range will contain all 1s afterwards.

fn write(&mut self, offset: u32, bytes: &[u8]) -> Result<(), Self::Error>

If power is lost during write, the contents of the written words are undefined, but the rest of the page is guaranteed to be unchanged. It is not allowed to write to the same word twice.

impl ReadNorFlash for StdStorage

const READ_SIZE: usize = 1usize

The minumum number of bytes the storage peripheral can read

fn read(&mut self, offset: u32, bytes: &mut [u8]) -> Result<(), Self::Error>

Read a slice of data from the storage peripheral, starting the read operation at the given address offset, and reading bytes.len() bytes.

fn capacity(&self) -> usize

The capacity of the peripheral in bytes.