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dvmhost/src/StopWatch.cpp

95 lines
2.4 KiB

/**
* Digital Voice Modem - Host Software
* GPLv2 Open Source. Use is subject to license terms.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* @package DVM / Host Software
*
*/
//
// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
//
/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "StopWatch.h"
#include <cstdio>
#include <ctime>
// ---------------------------------------------------------------------------
// Public Class Members
// ---------------------------------------------------------------------------
/// <summary>
/// Initializes a new instance of the StopWatch class.
/// </summary>
StopWatch::StopWatch() :
m_startMS(0ULL)
{
/* stub */
}
/// <summary>
/// Finalizes a instance of the StopWatch class.
/// </summary>
StopWatch::~StopWatch()
{
/* stub */
}
/// <summary>
/// Gets the current running time.
/// </summary>
/// <returns></returns>
ulong64_t StopWatch::time() const
{
struct timeval now;
::gettimeofday(&now, NULL);
return now.tv_sec * 1000ULL + now.tv_usec / 1000ULL;
}
/// <summary>
/// Starts the stopwatch.
/// </summary>
/// <returns></returns>
ulong64_t StopWatch::start()
{
struct timespec now;
::clock_gettime(CLOCK_MONOTONIC, &now);
m_startMS = now.tv_sec * 1000ULL + now.tv_nsec / 1000000ULL;
return m_startMS;
}
/// <summary>
/// Gets the elpased time since the stopwatch started.
/// </summary>
/// <returns></returns>
uint32_t StopWatch::elapsed()
{
struct timespec now;
::clock_gettime(CLOCK_MONOTONIC, &now);
ulong64_t nowMS = now.tv_sec * 1000ULL + now.tv_nsec / 1000000ULL;
return nowMS - m_startMS;
}

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