public static EcmaValue Wait(TypedArray array, EcmaValue index, EcmaValue value, EcmaValue timeout)
{
int pos = ValidateWaitableArrayAndIndex(array, index);
bool isInt32 = array.ArrayKind == TypedArrayKind.Int32Array;
long longValue = isInt32 ? value.ToInt32() : value.ToBigInt64().ToInt64();
timeout = timeout.ToNumber();
if (!RuntimeExecution.Current.CanSuspend)
{
throw new EcmaTypeErrorException("Atomics.wait cannot be called in this context");
}
bool comparandEquals, result;
int milliseconds = timeout.IsNaN || timeout > Int32.MaxValue ? -1 : timeout < 0 ? 0 : timeout.ToInt32();
SharedArrayBuffer buffer = (SharedArrayBuffer)array.Buffer;
if (isInt32)
{
result = buffer.Wait(array.GetByteOffset(pos), (int)longValue, milliseconds, out comparandEquals);
}
else
{
result = buffer.Wait(array.GetByteOffset(pos), longValue, milliseconds, out comparandEquals);
}
return(result ? "ok" : comparandEquals ? "timed-out" : "not-equal");
}
public SharedArrayBuffer(SharedArrayBuffer buffer)
: base(WellKnownObject.SharedArrayBufferPrototype, (byte[])buffer?.SyncRoot)
{
Dictionary <long, List <WaiterHandle> > waiterLists = new Dictionary <long, List <WaiterHandle> >();
Interlocked.CompareExchange(ref buffer.waiterLists, waiterLists, null);
this.waiterLists = buffer.waiterLists;
}
public static EcmaValue Notify(TypedArray array, EcmaValue index, EcmaValue count)
{
int pos = ValidateWaitableArrayAndIndex(array, index);
count = count == default ? Int32.MaxValue : count.ToNumber();
int countValue = count.IsNaN || count <= 0 ? 0 : count > Int32.MaxValue ? Int32.MaxValue : count.ToInt32();
SharedArrayBuffer buffer = (SharedArrayBuffer)array.Buffer;
return(buffer.Notify(array.GetByteOffset(pos), countValue));
}