mirror of
https://github.com/XRPLF/rippled.git
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2406b28e64
The codebase is filled with includes that are unused, and which thus can be removed. At the same time, the files often do not include all headers that contain the definitions used in those files. This change uses clang-format and clang-tidy to clean up the includes, with minor manual intervention to ensure the code compiles on all platforms.
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <xrpl/basics/UptimeClock.h>
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#include <atomic>
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#include <chrono>
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#include <thread>
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namespace ripple {
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std::atomic<UptimeClock::rep> UptimeClock::now_{0}; // seconds since start
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std::atomic<bool> UptimeClock::stop_{false}; // stop update thread
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// On rippled shutdown, cancel and wait for the update thread
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UptimeClock::update_thread::~update_thread()
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{
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if (joinable())
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{
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stop_ = true;
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// This join() may take up to a 1s, but happens only
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// once at rippled shutdown.
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join();
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}
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}
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// Launch the update thread
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UptimeClock::update_thread
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UptimeClock::start_clock()
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{
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return update_thread{[] {
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using namespace std;
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using namespace std::chrono;
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// Wake up every second and update now_
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auto next = system_clock::now() + 1s;
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while (!stop_)
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{
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this_thread::sleep_until(next);
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next += 1s;
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++now_;
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}
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}};
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}
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// This actually measures time since first use, instead of since rippled start.
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// However the difference between these two epochs is a small fraction of a
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// second and unimportant.
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UptimeClock::time_point
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UptimeClock::now()
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{
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// start the update thread on first use
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static const auto init = start_clock();
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// Return the number of seconds since rippled start
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return time_point{duration{now_}};
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}
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} // namespace ripple
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