WASIComponentWaitableHost class final

Table-backed host for canonical waitable-set operations.

Constructors

WASIComponentWaitableHost({WASIComponentResourceTable? table, Iterable<WASIComponentWaitableResolver> waitableResolvers = const []})

Creates a waitable host backed by table or a new resource table.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

hasPendingTaskCancellation → bool

Whether a cancellable wait or poll can observe task cancellation.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

table → WASIComponentResourceTable

Resource table used for waitables and waitable sets.

final

Methods

addWaitableResolver(WASIComponentWaitableResolver resolver) → void

Adds a resolver for waitables owned by another component host layer.

bindCanonicalDefinition(WasmComponentCanonicalDefinition definition) → WASIComponentCanonicalWaitableOperation

Binds a decoded canonical waitable-set definition.

bindCanonicalDefinitions(WasmComponent component) → WASIComponentCanonicalWaitableProgram

Binds all decoded canonical waitable-set definitions in component.

createWaitable(String name) → int

Creates a waitable handle with a debug name.

deliverTaskCancellation() → bool

Delivers pending cancellation to the current task once.

dropWaitable(int waitable) → void

Drops a host-created waitable handle.

insertWaitable(WASIComponentWaitable waitable) → int

Inserts a waitable and returns its component table handle.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

releaseTask(Object task) → void

Releases cancellation state retained for a resolved task.

requestTaskCancellation([Object? task]) → void

Requests cancellation of the current component task.

runWithTask<T>(Object task, T callback()) → T

Runs callback with task-local cancellation delivery for task.

runWithTaskAsync<T>(Object task, Future<T> callback()) → Future<T>

Runs callback with task-local cancellation delivery for task until it completes, then releases the task's cancellation state.

toString() → String

A string representation of this object.

inherited

waitableJoin(int waitable, int waitableSet) → void

Executes waitable.join.

waitableSetDrop(int waitableSet) → void

Executes waitable-set.drop.

waitableSetNew() → int

Executes waitable-set.new.

waitableSetPollToMemory(int waitableSet, Memory memory, int pointer, {bool cancellable = false}) → int

Executes waitable-set.poll.

waitableSetWait(int waitableSet, {bool cancellable = false}) → Future<WASIComponentWaitableEvent>

Executes waitable-set.wait.

waitableSetWaitToMemory(int waitableSet, Memory memory, int pointer, {bool cancellable = false}) → Future<int>

Executes waitable-set.wait and writes its payload to memory.

Operators

operator ==(Object other) → bool

The equality operator.

inherited