f3eade2f62
Drop the AGPL license in favor of a source-available license. See the blog post [1] for details. [1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#pragma once
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#include <cstdint>
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#include <limits>
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#include <chrono>
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#include <string>
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#include "clocks-impl.hh"
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namespace api {
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using timestamp_type = int64_t;
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timestamp_type constexpr missing_timestamp = std::numeric_limits<timestamp_type>::min();
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timestamp_type constexpr min_timestamp = std::numeric_limits<timestamp_type>::min() + 1;
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timestamp_type constexpr max_timestamp = std::numeric_limits<timestamp_type>::max();
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// Used for generating server-side mutation timestamps.
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// Same epoch as Java's System.currentTimeMillis() for compatibility.
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// Satisfies requirements of Clock.
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class timestamp_clock final {
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using base = std::chrono::system_clock;
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public:
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using rep = timestamp_type;
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using duration = std::chrono::microseconds;
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using period = typename duration::period;
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using time_point = std::chrono::time_point<timestamp_clock, duration>;
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static constexpr bool is_steady = base::is_steady;
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static time_point now() {
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return time_point(std::chrono::duration_cast<duration>(base::now().time_since_epoch())) + get_clocks_offset();
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}
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};
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inline
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timestamp_type new_timestamp() {
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return timestamp_clock::now().time_since_epoch().count();
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}
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}
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/* For debugging and log messages. */
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std::string format_timestamp(api::timestamp_type);
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