Struct MemoryStore 

pub struct MemoryStore { /* private fields */ }

A SlotStore held in memory, for tests and for running the flow with no hardware.

It forgets everything when dropped, which is the one thing a real store must not do, so it stands in for storage without pretending to be it.

Implementations

impl MemoryStore

pub fn new(count: u8, capacity: u32) -> Self

Creates a store with count slots of capacity bytes each.

Arguments

• count - how many slots the device has.
• capacity - how many bytes each slot holds.

Returns

An empty store.

Trait Implementations

impl Clone for MemoryStore

fn clone(&self) -> MemoryStore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryStore

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

Formats the value using the given formatter.

impl SlotStore for MemoryStore

fn slot_count(&self) -> u8

Returns how many slots this device has.

fn capacity(&self, slot: u8) -> Result<u32>

Returns how many bytes a slot can hold.

fn record(&self, slot: u8) -> Result<SlotRecord>

Reads what the device believes about a slot.

fn set_record(&mut self, slot: u8, record: SlotRecord) -> Result<()>

Writes what the device believes about a slot, durably.

fn erase(&mut self, slot: u8) -> Result<()>

Clears a slot’s contents and marks it empty.

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

Writes image bytes at an offset within a slot.

fn read(&self, slot: u8, offset: u32, buf: &mut [u8]) -> Result<usize>

Reads image bytes from an offset within a slot.