[−][src]Trait context_allocator::MemorySource

pub trait MemorySource: Debug {
    fn obtain(
        &self, 
        non_zero_size: NonZeroUsize
    ) -> Result<NonNull<u8>, AllocErr>;

    fn release(&self, non_zero_size: NonZeroUsize, current_memory: NonNull<u8>);
}

A memory source is a sort-of crude allocator that can obtain and release memory, from, say, the operating system, an arena or some fixed range.

It is thread-aware but not necessarily thread-safe.

Required methods

fn obtain(&self, non_zero_size: NonZeroUsize) -> Result<NonNull<u8>, AllocErr>

Obtain memory from the operating system, say.

Alignment will be whatever is appropriate, but is likely to be quite large.

fn release(&self, non_zero_size: NonZeroUsize, current_memory: NonNull<u8>)

Release memory to the operating system, say.

Alignment will be whatever is appropriate, but is likely to be quite large.

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Implementors

impl MemorySource for MemoryMapAllocator[src]

impl<MS: MemorySource> MemorySource for ArenaMemorySource<MS>[src]

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