Trait EmbeddedState

Source

pub trait EmbeddedState:
    Pod
    + Zeroable
    + Default
    + Copy
    + Send
    + Sync
    + 'static {
    const VERSION: u32 = 1u32;

    // Provided method
    fn is_embedded() -> bool { ... }
}

Expand description

Trait for state types that can be embedded directly in ControlBlock.

Types implementing this trait must:

Be Pod + Zeroable (plain old data, safe to reinterpret)
Be Default for initialization
Be Copy for efficient transfer
Fit within 24 bytes (checked at compile time via EmbeddedStateSize)

§Example

#[derive(Default, Clone, Copy, Pod, Zeroable)]
#[repr(C, align(8))]
struct MyState {
    value_a: u64,
    value_b: u64,
    counter: u32,
    _pad: u32,
}

impl EmbeddedState for MyState {}