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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Copyright (C) 2017 Red Hat Inc.
*
* Author: J. Eric Ivancich <ivancich@redhat.com>
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version
* 2.1, as published by the Free Software Foundation. See file
* COPYING.
*/
#pragma once
#include <unistd.h>
#include <assert.h>
#include <sys/time.h>
#include <limits>
#include <cmath>
#include <chrono>
namespace crimson {
namespace dmclock {
// we're using double to represent time, but we could change it by
// changing the following declarations (and by making sure a min
// function existed)
using Time = double;
static const Time TimeZero = 0.0;
static const Time TimeMax = std::numeric_limits<Time>::max();
static const double NaN = nan("");
inline Time get_time() {
#if defined(__linux__)
struct timespec now;
auto result = clock_gettime(CLOCK_REALTIME, &now);
(void) result; // reference result in case assert is compiled out
assert(0 == result);
return now.tv_sec + (now.tv_nsec / 1.0e9);
#else
struct timeval now;
auto result = gettimeofday(&now, NULL);
(void) result; // reference result in case assert is compiled out
assert(0 == result);
return now.tv_sec + (now.tv_usec / 1.0e6);
#endif
}
std::string format_time(const Time& time, unsigned modulo = 1000);
void debugger();
} // namespace dmclock
} // namespace crimson
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