vk::mem::virtual_block · Functions · A1

3 public declarations with native signatures and source-owned contracts.

FnRustExperimental

Fnvk::mem::virtual_block::allocate

pub fn allocate(
    block: &mut VirtualBlock<'_>,
    size: u64,
    alignment: u64,
    strategy: PlacementStrategy,
) -> Result<VirtualAllocation, AllocError>

Allocate a nonzero region with a nonzero power-of-two alignment.

Contract

Allocate a nonzero region with a nonzero power-of-two alignment.

Failure leaves placements and donor free-list ordering unchanged. Only host metadata is allocated; no Vulkan calls or memory mapping occur.

Fnvk::mem::virtual_block::allocate_upper

pub fn allocate_upper(
    block: &mut VirtualBlock<'_>,
    size: u64,
    alignment: u64,
) -> Result<VirtualAllocation, AllocError>

Allocate downward from the upper end of a linear block.

Contract

Allocate downward from the upper end of a linear block.

Errors

Rejects TLSF, active ring mode, invalid extents/alignment and exhausted space/metadata.

Fnvk::mem::virtual_block::allocation_info

pub fn allocation_info(
    block: &VirtualBlock<'_>,
    allocation: &VirtualAllocation,
) -> Result<VirtualAllocationInfo, AllocError>

Reject foreign, freed or stale tokens before reading placement metadata.

Contract

Reject foreign, freed or stale tokens before reading placement metadata.