ZMQConnection.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2019 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Nils Braun                                               *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
#pragma once
 
#include <framework/pcore/zmq/utils/ZMQLogger.h>
#include <framework/pcore/zmq/utils/ZMQParent.h>
 
#include <zmq.hpp>
 
#include <memory>
 
namespace Belle2 {
  class ZMQConnection : public ZMQLogger {
  public:
    using ReactorFunction = std::function<void(void)>;
 
    static bool poll(const std::map<const ZMQConnection*, ReactorFunction>& connectionList, int timeout);
 
    static bool hasMessage(const ZMQConnection* connection);
 
    virtual ~ZMQConnection() = default;
 
    virtual bool isReady() const;
    virtual std::vector<zmq::socket_t*> getSockets() const = 0;
  };
 
  class ZMQConnectionOverSocket : public ZMQConnection {
  public:
    explicit ZMQConnectionOverSocket(const std::shared_ptr<ZMQParent>& parent);
 
    std::vector<zmq::socket_t*> getSockets() const final;
 
  protected:
    std::shared_ptr<ZMQParent> m_parent;
    std::unique_ptr<zmq::socket_t> m_socket;
  };
}