fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
41 lines
963 B
C++
41 lines
963 B
C++
/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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/*
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* Copyright (C) 2020-present ScyllaDB
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*/
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#pragma once
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#include <cinttypes>
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#include <iosfwd>
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namespace utils {
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struct human_readable_value {
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uint16_t value; // [0, 1024)
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char suffix; // 0 -> no suffix
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};
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std::ostream& operator<<(std::ostream& os, const human_readable_value& val);
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/// Convert a size to a human readable representation.
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///
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/// The human-readable representation has at most 4 digits
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/// and a letter appropriate to the power of two the number has to be multiplied
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/// with to arrive to the original number (with some loss of precision).
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/// The different powers of two are the conventional 2 ** (N * 10) variants:
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/// * N=0: (B)ytes
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/// * N=1: (K)bytes
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/// * N=2: (M)bytes
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/// * N=3: (G)bytes
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/// * N=4: (T)bytes
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///
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/// Examples:
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/// * 87665 will be converted to 87K
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/// * 1024 will be converted to 1K
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human_readable_value to_hr_size(uint64_t size);
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} // namespace utils
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