[][src]Struct xalloc::bitmap::BitmapAlloc

pub struct BitmapAlloc { /* fields omitted */ }

Free space bitmap-based external memory allocator.

See the module-level documentation for more.

Implementations

impl BitmapAlloc[src]

pub fn new(size: usize) -> Self[src]

Construct a BitmapAlloc.

pub fn alloc(&mut self, size: usize) -> Option<(BitmapAllocRegion, usize)>[src]

Alias of alloc_next.

pub fn alloc_next(&mut self, size: usize) -> Option<(BitmapAllocRegion, usize)>[src]

Allocate a region of the size size using a Next-Fit strategy. The time complexity is linear to the size of the heap.

Returns a handle of the allocated region and its offset if the allocation succeeds. Returns None otherwise.

size must not be zero.

pub fn alloc_first(&mut self, size: usize) -> Option<(BitmapAllocRegion, usize)>[src]

Allocate a region of the size size using a First-Fit strategy. The time complexity is linear to the size of the heap.

Returns a handle of the allocated region and its offset if the allocation succeeds. Returns None otherwise.

size must not be zero.

pub fn dealloc_relaxed(&mut self, r: BitmapAllocRegion)[src]

Deallocate the specified region.

r must originate from the same instance of BitmapAlloc. Otherwise, BitmapAlloc enters an inconsistent state and possibly panics, but does not cause an undefined behavior.

Trait Implementations

impl Clone for BitmapAlloc[src]

impl Debug for BitmapAlloc[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.