Struct VMComponentOffsets 

pub struct VMComponentOffsets<P> {
    pub ptr: P,
    pub num_lowerings: u32,
    pub num_runtime_memories: u32,
    pub num_runtime_tables: u32,
    pub num_runtime_reallocs: u32,
    pub num_runtime_callbacks: u32,
    pub num_runtime_post_returns: u32,
    pub num_runtime_component_instances: u32,
    pub num_trampolines: u32,
    pub num_unsafe_intrinsics: u32,
    pub num_resources: u32,
    /* private fields */
}

Runtime offsets within a VMComponentContext for a specific component.

Fields

ptr: P

The host pointer size

num_lowerings: u32

The number of lowered functions this component will be creating.

num_runtime_memories: u32

The number of memories which are recorded in this component for options.

num_runtime_tables: u32

The number of tables which are recorded in this component for options.

num_runtime_reallocs: u32

The number of reallocs which are recorded in this component for options.

num_runtime_callbacks: u32

The number of callbacks which are recorded in this component for options.

num_runtime_post_returns: u32

The number of post-returns which are recorded in this component for options.

num_runtime_component_instances: u32

Number of component instances internally in the component (always at least 1).

num_trampolines: u32

Number of cranelift-compiled trampolines required for this component.

num_unsafe_intrinsics: u32

Number of VMFuncRefs for unsafe intrinsics within this component’s context.

num_resources: u32

Number of resources within a component which need destructors stored.

Implementations

impl<P: PtrSize> VMComponentOffsets<P>

Offsets of the dynamically-positioned fields of VMComponentContext.

pub fn may_leave(&self) -> ArrayOffsets<RuntimeComponentInstanceIndex>

The offsets of the may_leave array.

pub fn task_may_block(&self) -> u32

The offset of the task_may_block field.

pub fn trampoline_func_refs(&self) -> ArrayOffsets<TrampolineIndex>

The offsets of the trampoline_func_refs array.

pub fn intrinsic_func_refs(&self) -> ArrayOffsets<UnsafeIntrinsic>

The offsets of the intrinsic_func_refs array.

pub fn lowerings(&self) -> ArrayOffsets<LoweredIndex>

The offsets of the lowerings array.

pub fn memories(&self) -> ArrayOffsets<RuntimeMemoryIndex>

The offsets of the memories array.

pub fn tables(&self) -> ArrayOffsets<RuntimeTableIndex>

The offsets of the tables array.

pub fn reallocs(&self) -> ArrayOffsets<RuntimeReallocIndex>

The offsets of the reallocs array.

pub fn callbacks(&self) -> ArrayOffsets<RuntimeCallbackIndex>

The offsets of the callbacks array.

pub fn post_returns(&self) -> ArrayOffsets<RuntimePostReturnIndex>

The offsets of the post_returns array.

pub fn resource_destructors(&self) -> ArrayOffsets<ResourceIndex>

The offsets of the resource_destructors array.

pub fn size_of_vmctx(&self) -> u32

Return the size of the VMComponentContext allocation.

impl<P: PtrSize> VMComponentOffsets<P>

pub fn new(ptr: P, component: &Component) -> Self

Creates a new set of offsets for the component specified configured additionally for the ptr size specified.

pub fn pointer_size(&self) -> u8

The size, in bytes, of the host pointer.

pub fn lowering_callee(&self, index: LoweredIndex) -> u32

The offset of the callee for the index specified.

pub fn lowering_data(&self, index: LoweredIndex) -> u32

The offset of the data for the index specified.

pub fn lowering_size(&self) -> u8

The size of the VMLowering type

pub fn lowering_callee_offset(&self) -> u32

The offset of the callee field within the VMLowering type.

pub fn lowering_data_offset(&self) -> u32

The offset of the data field within the VMLowering type.

Trait Implementations

impl<P: Clone> Clone for VMComponentOffsets<P>

fn clone(&self) -> VMComponentOffsets<P>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<P: Copy> Copy for VMComponentOffsets<P>

impl<P: Debug> Debug for VMComponentOffsets<P>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<P: PtrSize> GetPtrSize for VMComponentOffsets<P>

type Ptr = P

The type that implements PtrSize.

fn get_ptr_size(&self) -> &Self::Ptr

Get a &P where P: PtrSize.