Struct BoxStore 

pub struct BoxStore<T>(/* private fields */);

A place to store a fake “heap” that can allocate for one Box.

Implementations

impl<T> BoxStore<T>

pub const fn new() -> Self

Create a new BoxStore

Examples found in repository

examples/main.rs (line 18)

static BOX_STORE: faux_alloc::BoxStore<u32> = faux_alloc::BoxStore::new();

pub fn alloc(&'static self, value: T) -> Option<Box<T>>

Allocate memory.

Examples found in repository

examples/main.rs (line 39)

pub extern "C" fn main() {
    let boxed = BOX_STORE.alloc(12).unwrap();
    let mut string = CStringFormatter::<3>::new();
    string.write_fmt(format_args!("{}", *boxed)).unwrap();
    unsafe { puts(string.0.as_ptr().cast()) };
}

pub fn dealloc(&'static self, ptr: Box<T>) -> Result<(), ()>

De-allocate memory and drop.

After this is called, the memory may be allocated again.

May error if:

• Not the same Box that was allocated on this store.

Trait Implementations

impl<T> Drop for BoxStore<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T> Sync for BoxStore<T>