Struct StaticMemoryManager 

pub struct StaticMemoryManager<P: Payload, const DEPTH: usize> { /* private fields */ }

A fixed-capacity memory manager backed by [Option<Message<P>>; DEPTH].

Behavior depends on the checked-memory-manager-refs feature:

• Feature disabled (default): guard associated types are plain references: &MessageHeader, &Message<P>, &mut Message<P> — zero-cost, suitable for MCU/no-alloc builds.
• Feature enabled: per-slot borrow counters are kept (u16). peek_header, read, read_mut return small guard types that update the per-slot borrow counter and restore it on Drop. Conflicts return explicit MemoryError values.

Implementations

impl<P: Payload, const DEPTH: usize> StaticMemoryManager<P, DEPTH>

pub fn new() -> Self

Create a new manager with all slots empty.

memory_class defaults to MemoryClass::Host.

pub fn with_memory_class(mem_class: MemoryClass) -> Self

Create a new manager with a specific memory class.

Trait Implementations

impl<P: Payload, const DEPTH: usize> Default for StaticMemoryManager<P, DEPTH>

fn default() -> Self

Returns the “default value” for a type.

impl<P: Payload, const DEPTH: usize> HeaderStore for StaticMemoryManager<P, DEPTH>

type HeaderGuard<'a> = StaticHeaderGuard<'a> where Self: 'a

Guard type returned by HeaderStore::peek_header.

fn peek_header( &self, token: MessageToken, ) -> Result<Self::HeaderGuard<'_>, MemoryError>

Borrow the header of the message identified by token.

impl<P: Payload, const DEPTH: usize> MemoryManager<P> for StaticMemoryManager<P, DEPTH>

type ReadGuard<'a> = StaticReadGuard<'a, P> where Self: 'a

Shared read guard returned by MemoryManager::read.

type WriteGuard<'a> = StaticWriteGuard<'a, P> where Self: 'a

Exclusive mutable guard returned by MemoryManager::read_mut.

fn store(&mut self, value: Message<P>) -> Result<MessageToken, MemoryError>

Allocate storage for value and return its token.

fn read(&self, token: MessageToken) -> Result<Self::ReadGuard<'_>, MemoryError>

Borrow a stored message immutably.

fn read_mut( &mut self, token: MessageToken, ) -> Result<Self::WriteGuard<'_>, MemoryError>

Borrow a stored message mutably.

fn free(&mut self, token: MessageToken) -> Result<(), MemoryError>

Free the slot identified by token.

fn available(&self) -> usize

Return the number of currently free slots.

fn capacity(&self) -> usize

Return the total slot capacity of the manager.

fn memory_class(&self) -> MemoryClass

Return the memory class represented by this manager.