/// <summary>
/// Poll in a controlled manner the <seealso cref="Image"/>s under the subscription for available message fragments.
/// Control is applied to fragments in the stream. If more fragments can be read on another stream
/// they will even if BREAK or ABORT is returned from the fragment handler.
/// <para>
/// Each fragment read will be a whole message if it is under MTU length. If larger than MTU then it will come
/// as a series of fragments ordered within a session.
/// </para>
/// <para>
/// To assemble messages that span multiple fragments then use <seealso cref="ControlledFragmentAssembler"/>.
///
/// </para>
/// </summary>
/// <param name="fragmentHandler"> callback for handling each message fragment as it is read. </param>
/// <param name="fragmentLimit"> number of message fragments to limit for the poll operation across multiple <seealso cref="Image"/>s. </param>
/// <returns> the number of fragments received </returns>
/// <seealso cref="ControlledFragmentHandler" />
public int ControlledPoll(ControlledFragmentHandler fragmentHandler, int fragmentLimit)
{
var handler = HandlerHelper.ToControlledFragmentHandler(fragmentHandler);
return(ControlledPoll(handler, fragmentLimit));
}
public virtual long ControlledPeek(long initialPosition, ControlledFragmentHandler handler, long limitPosition)
{
var fragmentHandler = HandlerHelper.ToControlledFragmentHandler(handler);
return(ControlledPeek(initialPosition, fragmentHandler, limitPosition));
}