e99426df60
'static inline' is always wrong in headers - if the same header is included multiple times, and the function happens not to be inlined, then multiple copies of it will be generated. Fix by mechanically changing '^static inline' to 'inline'.
37 lines
972 B
C++
37 lines
972 B
C++
/*
|
|
* Copyright (C) 2017-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <algorithm>
|
|
#include <atomic>
|
|
#include <chrono>
|
|
#include <cstdint>
|
|
|
|
extern std::atomic<int64_t> clocks_offset;
|
|
|
|
template<typename Duration>
|
|
inline void forward_jump_clocks(Duration delta)
|
|
{
|
|
auto d = std::chrono::duration_cast<std::chrono::seconds>(delta).count();
|
|
clocks_offset.fetch_add(d, std::memory_order_relaxed);
|
|
}
|
|
|
|
inline std::chrono::seconds get_clocks_offset()
|
|
{
|
|
auto off = clocks_offset.load(std::memory_order_relaxed);
|
|
return std::chrono::seconds(off);
|
|
}
|
|
|
|
// Returns a time point which is earlier from t by d, or minimum time point if it cannot be represented.
|
|
template<typename Clock, typename Duration, typename Rep, typename Period>
|
|
inline
|
|
auto saturating_subtract(std::chrono::time_point<Clock, Duration> t, std::chrono::duration<Rep, Period> d) -> decltype(t) {
|
|
return std::max(t, decltype(t)::min() + d) - d;
|
|
}
|