Struct wasmtime_environ::component::VMComponentOffsets

pub struct VMComponentOffsets<P> {
    pub ptr: P,
    pub num_lowerings: u32,
    pub num_runtime_memories: u32,
    pub num_runtime_reallocs: u32,
    pub num_runtime_post_returns: u32,
    pub num_runtime_component_instances: u32,
    pub num_trampolines: 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_reallocs: u32

The number of reallocs 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_resources: u32

Number of resources within a component which need destructors stored.

Implementations

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 magic(&self) -> u32

The offset of the magic field.

pub fn libcalls(&self) -> u32

The offset of the libcalls field.

pub fn instance_flags(&self, index: RuntimeComponentInstanceIndex) -> u32

The offset of the flags field.

pub fn store(&self) -> u32

The offset of the store field.

pub fn limits(&self) -> u32

The offset of the limits field.

pub fn trampoline_func_refs(&self) -> u32

The offset of the trampoline_func_refs field.

pub fn trampoline_func_ref(&self, index: TrampolineIndex) -> u32

The offset of VMFuncRef for the index specified.

pub fn lowerings(&self) -> u32

The offset of the lowerings field.

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

The offset of the VMLowering for the index specified.

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.

pub fn runtime_memories(&self) -> u32

The offset of the base of the runtime_memories field

pub fn runtime_memory(&self, index: RuntimeMemoryIndex) -> u32

The offset of the *mut VMMemoryDefinition for the runtime index provided.

pub fn runtime_reallocs(&self) -> u32

The offset of the base of the runtime_reallocs field

pub fn runtime_realloc(&self, index: RuntimeReallocIndex) -> u32

The offset of the *mut VMFuncRef for the runtime index provided.

pub fn runtime_post_returns(&self) -> u32

The offset of the base of the runtime_post_returns field

pub fn runtime_post_return(&self, index: RuntimePostReturnIndex) -> u32

The offset of the *mut VMFuncRef for the runtime index provided.

pub fn resource_destructors(&self) -> u32

The offset of the base of the resource_destructors field

pub fn resource_destructor(&self, index: ResourceIndex) -> u32

The offset of the *mut VMFuncRef for the runtime index provided.

pub fn size_of_vmctx(&self) -> u32

Return the size of the VMComponentContext allocation.

Trait Implementations

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

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

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

Formats the value using the given formatter.

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