public IAsyncOperation <ChannelStateOperationResult> WriteAsync(AsynchronousWritingDelegateWithResult writingDelegate, long length, TimeSpan timeout)
{
return(AsyncInfo.Run(async cancellationToken =>
{
return new ChannelStateOperationResult(await _internal.WriteAsync(DelegateHelper.Wrap(writingDelegate), null, length, cancellationToken, timeout));
}));
}
public static Func <MemoryMappedViewStream, object, CancellationToken, Task <Internal.OperationStatus> > Wrap(AsynchronousWritingDelegateWithResult externalDelegate)
{
return(async(MemoryMappedViewStream stream, object parameter, CancellationToken cancellationToken) =>
{
if (externalDelegate == null)
{
return Internal.OperationStatus.Completed;
}
var result = await externalDelegate.Invoke(stream.AsRandomAccessStream()).AsTask(cancellationToken);
return (Internal.OperationStatus)result;
});
}
