Struct VolatileCell 

pub struct VolatileCell<T: Copy> { /* private fields */ }

Volatile cell wrapper for DMA descriptor fields.

Prevents the compiler from reordering or caching register-like memory accesses. All reads and writes go through core::ptr::{read,write}_volatile.

Implementations

impl<T: Copy> VolatileCell<T>

pub const fn new(value: T) -> Self

Create a new volatile cell with the given initial value.

pub fn get(&self) -> T

Read the value (volatile read).

pub fn set(&self, value: T)

Write a value (volatile write).

pub fn update<F>(&self, f: F)

where F: FnOnce(T) -> T,

Update the value using a function (read-modify-write).

Trait Implementations

impl<T: Copy + Default> Default for VolatileCell<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: Copy> Sync for VolatileCell<T>