Files
scylladb/timestamp.hh
Avi Kivity e99426df60 treewide: de-static namespace scope functions in headers
'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'.
2024-10-01 14:02:50 +03:00

51 lines
1.4 KiB
C++

/*
* Copyright (C) 2015-present ScyllaDB
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include <cstdint>
#include <limits>
#include <chrono>
#include <string>
#include "clocks-impl.hh"
namespace api {
using timestamp_type = int64_t;
timestamp_type constexpr missing_timestamp = std::numeric_limits<timestamp_type>::min();
timestamp_type constexpr min_timestamp = std::numeric_limits<timestamp_type>::min() + 1;
timestamp_type constexpr max_timestamp = std::numeric_limits<timestamp_type>::max();
// Used for generating server-side mutation timestamps.
// Same epoch as Java's System.currentTimeMillis() for compatibility.
// Satisfies requirements of Clock.
class timestamp_clock final {
using base = std::chrono::system_clock;
public:
using rep = timestamp_type;
using duration = std::chrono::microseconds;
using period = typename duration::period;
using time_point = std::chrono::time_point<timestamp_clock, duration>;
static constexpr bool is_steady = base::is_steady;
static time_point now() {
return time_point(std::chrono::duration_cast<duration>(base::now().time_since_epoch())) + get_clocks_offset();
}
};
inline
timestamp_type new_timestamp() {
return timestamp_clock::now().time_since_epoch().count();
}
}
/* For debugging and log messages. */
std::string format_timestamp(api::timestamp_type);