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rippled/src/ripple/basics/chrono.h
2016-05-03 13:52:15 -04:00

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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012, 2013 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#ifndef RIPPLE_BASICS_CHRONO_H_INCLUDED
#define RIPPLE_BASICS_CHRONO_H_INCLUDED
#include <ripple/beast/clock/abstract_clock.h>
#include <ripple/beast/clock/basic_seconds_clock.h>
#include <ripple/beast/clock/manual_clock.h>
#include <chrono>
#include <cstdint>
#include <string>
namespace ripple {
// A few handy aliases
using days = std::chrono::duration
<int, std::ratio_multiply<
std::chrono::hours::period,
std::ratio<24>>>;
using weeks = std::chrono::duration
<int, std::ratio_multiply<
days::period, std::ratio<7>>>;
/** Clock for measuring Ripple Network Time.
The epoch is January 1, 2000
epoch_offset = days(10957); // 2000-01-01
*/
class NetClock
{
public:
using rep = std::uint32_t;
using period = std::ratio<1>;
using duration = std::chrono::duration<rep, period>;
using time_point = std::chrono::time_point<NetClock>;
static bool const is_steady = false;
};
std::string to_string(NetClock::time_point tp);
std::string to_string(std::chrono::system_clock::time_point tp);
/** A clock for measuring elapsed time.
The epoch is unspecified.
*/
using Stopwatch =
beast::abstract_clock<
std::chrono::steady_clock>;
/** A manual Stopwatch for unit tests. */
using TestStopwatch =
beast::manual_clock<
std::chrono::steady_clock>;
/** Returns an instance of a wall clock. */
inline
Stopwatch&
stopwatch()
{
return beast::get_abstract_clock<
std::chrono::steady_clock,
beast::basic_seconds_clock<
std::chrono::steady_clock>>();
}
} // ripple
#endif