/**
  * @RDE_HEADER@
  * GenericFTS Interface
  * $Id$
  * $HeadURL$
  * $Author$
  */

#pragma once

#include <rti/core/SampleIdentity.hpp>
#include <QVector>

/**
 * Note:
 *
 * The FTS calls a slot of the calling object (CO) to send the requestData to the CO.
 * This slot needs to be implemented by the calling object (CO):
 *
 * public Q_SLOTS:
 *   void handleFunctionTopicRequest(const rti::core::SampleIdentity &requestIdentity, const TOPICTYPE_REQUEST &requestData);
 *
 * The CO processes the request and sends the feedback (and possible reply data) back to the FTS
 * by calling the method:
 *
 *   void sendReply(const rti::core::SampleIdentity &requestIdentity, const QVector<TOPICTYPE_REPLY> &replyData )
 *
 *
 * - The FTS cannot use SIGNALS, because templates and QObject are incompatible.
 * - The FTS and the CO are in different threads
 *
 * => reply data will be stored in a queue (std:queue) and the handling is done by a semaphore (QSemaphore)
 *
 * */

namespace FTS
{
  // uses FTS (static)
  template <typename TOPICTYPE_REQUEST, typename TOPICTYPE_REPLY>
  class GenericFts
  {
  public:
    GenericFts() = default;
    virtual ~GenericFts() = default;

    virtual bool sendReply(const rti::core::SampleIdentity &requestIdentity, const TOPICTYPE_REPLY &replyData) = 0;
    virtual bool sendReply(const rti::core::SampleIdentity &requestIdentity, const QVector<TOPICTYPE_REPLY> &replyData) = 0;
  };

}