/*

 * Copyright (c) 2001-2020 Mellanox Technologies, Ltd. All rights reserved.

 *

 * This software is available to you under a choice of one of two

 * licenses.  You may choose to be licensed under the terms of the GNU

 * General Public License (GPL) Version 2, available from the file

 * COPYING in the main directory of this source tree, or the

 * BSD license below:

 *

 *     Redistribution and use in source and binary forms, with or

 *     without modification, are permitted provided that the following

 *     conditions are met:

 *

 *      - Redistributions of source code must retain the above

 *        copyright notice, this list of conditions and the following

 *        disclaimer.

 *

 *      - Redistributions in binary form must reproduce the above

 *        copyright notice, this list of conditions and the following

 *        disclaimer in the documentation and/or other materials

 *        provided with the distribution.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

 * SOFTWARE.

 */

#ifndef TIME_CONVERTER_H

#define TIME_CONVERTER_H

#include <tr1/unordered_map>

#include <infiniband/verbs.h>

#include "vma/util/sys_vars.h"

#include "vma/sock/cleanable_obj.h"

#include "vma/event/timer_handler.h"

class net_device_val;

typedef std::tr1::unordered_map<int, net_device_val*> net_device_map_t;

class ctx_timestamping_params_t {

public:

	uint64_t                hca_core_clock;

	uint64_t                sync_hw_clock;

	struct timespec         sync_systime;

	ctx_timestamping_params_t() : hca_core_clock(0), sync_hw_clock(0) {

		sync_systime.tv_sec = 0;

		sync_systime.tv_nsec = 0;

	}

};

class time_converter : public timer_handler, public cleanable_obj

{

public:

	time_converter(): m_timer_handle(NULL), m_converter_status(TS_CONVERSION_MODE_DISABLE) {};

	virtual ~time_converter() = 0;

	virtual void              convert_hw_time_to_system_time(uint64_t hwtime, struct timespec* systime) = 0;

	virtual void              handle_timer_expired(void* user_data) = 0;

	virtual void              clean_obj();

	ts_conversion_mode_t      get_converter_status() { return m_converter_status; };

	static ts_conversion_mode_t update_device_converters_status(net_device_map_t& net_devices);

protected:

	void*                     m_timer_handle;

	ts_conversion_mode_t      m_converter_status;

	static uint32_t           get_single_converter_status(struct ibv_context* ctx);

};

// pure virtual destructor implementation

inline time_converter::~time_converter() { }

#endif //TIME_CONVERTER_H