Struct wasmtime_runtime::PoolingInstanceAllocator

pub struct PoolingInstanceAllocator { /* private fields */ }

Implements the pooling instance allocator.

This allocator internally maintains pools of instances, memories, tables, and stacks.

Note: the resource pools are manually dropped so that the fault handler terminates correctly.

Implementations

impl PoolingInstanceAllocator

pub fn new(
    strategy: PoolingAllocationStrategy,
    instance_limits: InstanceLimits,
    stack_size: usize,
    tunables: &Tunables,
    async_stack_zeroing: bool
) -> Result<Self>

Creates a new pooling instance allocator with the given strategy and limits.

Trait Implementations

impl Debug for PoolingInstanceAllocator

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

Formats the value using the given formatter.

impl InstanceAllocator for PoolingInstanceAllocator

fn validate(&self, module: &Module) -> Result<()>

Validates that a module is supported by the allocator.

fn adjust_tunables(&self, tunables: &mut Tunables)

Adjusts the tunables prior to creation of any JIT compiler.

unsafe fn allocate(
    &self,
    req: InstanceAllocationRequest<'_>
) -> Result<InstanceHandle, InstantiationError>

Allocates an instance for the given allocation request.

unsafe fn initialize(
    &self,
    handle: &mut InstanceHandle,
    module: &Module,
    is_bulk_memory: bool
) -> Result<(), InstantiationError>

Finishes the instantiation process started by an instance allocator.

unsafe fn deallocate(&self, handle: &InstanceHandle)

Deallocates a previously allocated instance.

fn allocate_fiber_stack(&self) -> Result<FiberStack, FiberStackError>

Allocates a fiber stack for calling async functions on.

unsafe fn deallocate_fiber_stack(&self, stack: &FiberStack)

Deallocates a fiber stack that was previously allocated with allocate_fiber_stack.