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
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/*
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* Copyright (C) 2018-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#include "vint-serialization.hh"
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#include "sstables/types.hh"
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#include "sstables/m_format_read_helpers.hh"
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#include "sstables/exceptions.hh"
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#include "sstables/random_access_reader.hh"
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namespace sstables {
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static void check_buf_size(temporary_buffer<char>& buf, size_t expected) {
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if (buf.size() < expected) {
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throw bufsize_mismatch_exception(buf.size(), expected);
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}
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}
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template <typename T>
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inline future<T> read_vint_impl(random_access_reader& in) {
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using vint_type = std::conditional_t<std::is_unsigned_v<T>, unsigned_vint, signed_vint>;
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return in.read_exactly(1).then([&in] (auto&& buf) {
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check_buf_size(buf, 1);
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vint_size_type len = vint_type::serialized_size_from_first_byte(*buf.begin());
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temporary_buffer<char> bytes(len);
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std::copy_n(buf.begin(), 1, bytes.get_write());
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return in.read_exactly(len - 1).then([len, bytes = std::move(bytes)] (temporary_buffer<char> buf) mutable {
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check_buf_size(buf, len - 1);
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std::copy_n(buf.begin(), len - 1, bytes.get_write() + 1);
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return vint_type::deserialize(
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bytes_view(reinterpret_cast<bytes::value_type*>(bytes.get_write()), len));
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});
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});
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}
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future<uint64_t> read_unsigned_vint(random_access_reader& in) {
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return read_vint_impl<uint64_t>(in);
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}
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future<int64_t> read_signed_vint(random_access_reader& in) {
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return read_vint_impl<int64_t>(in);
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}
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std::ostream& operator<<(std::ostream& out, sstables::bound_kind_m kind) {
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switch (kind) {
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case sstables::bound_kind_m::excl_end:
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out << "excl_end";
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break;
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case sstables::bound_kind_m::incl_start:
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out << "incl_start";
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break;
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case sstables::bound_kind_m::excl_end_incl_start:
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out << "excl_end_incl_start";
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break;
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case sstables::bound_kind_m::static_clustering:
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out << "static_clustering";
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break;
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case sstables::bound_kind_m::clustering:
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out << "clustering";
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break;
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case sstables::bound_kind_m::incl_end_excl_start:
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out << "incl_end_excl_start";
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break;
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case sstables::bound_kind_m::incl_end:
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out << "incl_end";
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break;
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case sstables::bound_kind_m::excl_start:
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out << "excl_start";
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break;
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default:
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out << static_cast<unsigned>(kind);
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}
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return out;
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}
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} // namespace sstables
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