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67 lines
2.0 KiB
67 lines
2.0 KiB
/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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/*
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* Copyright (C) 2023 Bryan Biedenkapp N2PLL
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#if !defined(__CLOCK_H__)
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#define __CLOCK_H__
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#include "Defines.h"
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#include <sys/time.h>
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#include <chrono>
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namespace system_clock
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{
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/*
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** Network Time Protocol
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*/
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namespace ntp
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{
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/// <summary>Get current time in NTP units.</summary>
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uint64_t now();
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/// <summary>Calculate the time difference of two NTP times.</summary>
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uint64_t diff(uint64_t ntp1, uint64_t ntp2);
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/// <summary>Calculate the time difference of two NTP times.</summary>
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uint64_t diffNow(uint64_t then);
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} // namespace ntp
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/*
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** High-Resolution Clock
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*/
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namespace hrc
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{
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typedef std::chrono::high_resolution_clock::time_point hrc_t;
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/// <summary>Get current time in HRC units.</summary>
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hrc_t now();
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/// <summary>Calculate the time difference of two HRC times.</summary>
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uint64_t diff(hrc_t hrc1, hrc_t hrc2);
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/// <summary>Calculate the time difference of two HRC times.</summary>
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uint64_t diffNow(hrc_t then);
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/// <summary>Calculate the time difference of two HRC times.</summary>
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uint64_t diffNowUS(hrc_t& then);
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} // namespace hrc
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/// <summary></summary>
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uint64_t msToJiffies(uint64_t ms);
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/// <summary></summary>
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uint64_t jiffiesToMs(uint64_t jiffies);
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} // namespace system_clock
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#endif // __CLOCK_H__
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