[−][src]Struct sp_allocator::FreeingBumpHeapAllocator
An implementation of freeing bump allocator.
Refer to the module-level documentation for further details.
Methods
impl FreeingBumpHeapAllocator
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pub fn new(heap_base: u32) -> Self
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Creates a new allocation heap which follows a freeing-bump strategy. The maximum size which can be allocated at once is 16 MiB.
Arguments
heap_base
- the offset from the beginning of the linear memory where the heap starts.
pub fn allocate<M: Memory + ?Sized>(
&mut self,
mem: &mut M,
size: WordSize
) -> Result<Pointer<u8>, Error>
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&mut self,
mem: &mut M,
size: WordSize
) -> Result<Pointer<u8>, Error>
Gets requested number of bytes to allocate and returns a pointer. The maximum size which can be allocated at once is 16 MiB. There is no minimum size, but whatever size is passed into this function is rounded to the next power of two. If the requested size is below 8 bytes it will be rounded up to 8 bytes.
Arguments
mem
- a slice representing the linear memory on which this allocator operates.size
- size in bytes of the allocation request
pub fn deallocate<M: Memory + ?Sized>(
&mut self,
mem: &mut M,
ptr: Pointer<u8>
) -> Result<(), Error>
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&mut self,
mem: &mut M,
ptr: Pointer<u8>
) -> Result<(), Error>
Deallocates the space which was allocated for a pointer.
Arguments
mem
- a slice representing the linear memory on which this allocator operates.ptr
- pointer to the allocated chunk
Auto Trait Implementations
impl RefUnwindSafe for FreeingBumpHeapAllocator
impl Send for FreeingBumpHeapAllocator
impl Sync for FreeingBumpHeapAllocator
impl Unpin for FreeingBumpHeapAllocator
impl UnwindSafe for FreeingBumpHeapAllocator
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
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Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
fn from_ref(outer: &Outer) -> &T
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Get a reference to the inner from the outer.
fn from_mut(outer: &mut Outer) -> &mut T
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Get a mutable reference to the inner from the outer.
impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe,
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T: RefUnwindSafe,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,
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T: UncheckedFrom<S>,
fn unchecked_into(self) -> T
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,