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/*!
* \file pcap_layer.hh
* \brief Header file for ITS Offline Pcap port layer.
* \author ETSI STF525
* \copyright ETSI Copyright Notification
* No part may be reproduced except as authorized by written permission.
* The copyright and the foregoing restriction extend to reproduction in all media.
* All rights reserved.
* \version 0.1
*/
#pragma once
#include <thread>
#include <mutex>
#include "t_layer.hh"
#include "params.hh"
#include <Octetstring.hh>
class PORT; //! Forward declaration of TITAN class
typedef struct pcap pcap_t;
/*!
* \class pcap_layer
* \brief This class provides description of ITS PCAP port protocol layer
*/
class pcap_layer : public layer, public PORT {
params _params; //! Layer parameters
pcap_t* _device; //! Device handle
std::thread* _thread; //! Thread handle, used to read PCAP file instead of NIC, used in file mode
std::mutex _resume;
bool _running; //! Set to true when the thread is running, used in file mode
int _fd[2]; //! pipe to signal to Titan
OCTETSTRING _o_data;
params _o_params;
std::string _time_key;
static void* run(void* p_this);
public:
void* thread(void);
public: //! \publicsection
/*!
* \brief Specialised constructor
* Create a new instance of the pcap_layer class
* \param[in] p_type \todo
* \param[in] p_param \todo
*/
pcap_layer(const std::string& p_type, const std::string& param);
/*!
* \brief Default destructor
*/
virtual ~pcap_layer();
/*!
* \virtual
* \fn void send_data(OCTETSTRING& data, params& params);
* \brief Send bytes formated data to the lower layers
* \param[in] p_data The data to be sent
* \param[in] p_params Some parameters to overwrite default value of the lower layers parameters
*/
virtual void send_data(OCTETSTRING& data, params& params);
/*!
* \virtual
* \fn void receive_data(OCTETSTRING& data, params& params);
* \brief Receive bytes formated data from the lower layers
* \param[in] p_data The bytes formated data received
* \param[in] p_params Some lower layers parameters values when data was received
*/
virtual void receive_data(OCTETSTRING& data, params& info);
void Handle_Fd_Event_Readable(int fd);
};