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tdlib-fork/tdutils/td/utils/port/Clocks.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include <chrono>
namespace td {
class ClocksBase {
public:
using Duration = double;
};
// TODO: (maybe) write system specific functions.
class ClocksDefault {
public:
using Duration = ClocksBase::Duration;
static Duration monotonic() {
auto duration = std::chrono::steady_clock::now().time_since_epoch();
return static_cast<double>(std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count()) * 1e-9;
}
static Duration system() {
auto duration = std::chrono::system_clock::now().time_since_epoch();
return static_cast<double>(std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count()) * 1e-9;
}
};
using Clocks = ClocksDefault;
} // namespace td