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/
37 lines
1.2 KiB
C++
37 lines
1.2 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 <iostream>
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#include <cstdint>
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#include <exception>
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using cql_protocol_version_type = uint8_t;
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// Abstraction of transport protocol-dependent serialization format
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// Protocols v1, v2 used 16 bits for collection sizes, while v3 and
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// above use 32 bits. But letting every bit of the code know what
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// transport protocol we're using (and in some cases, we aren't using
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// any transport -- it's for internal storage) is bad, so abstract it
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// away here.
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class cql_serialization_format {
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cql_protocol_version_type _version;
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public:
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static constexpr cql_protocol_version_type latest_version = 4;
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explicit cql_serialization_format(cql_protocol_version_type version) : _version(version) {}
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static cql_serialization_format latest() { return cql_serialization_format{latest_version}; }
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cql_protocol_version_type protocol_version() const { return _version; }
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void ensure_supported() const {
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if (_version < 3) {
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throw std::runtime_error("cql protocol version must be 3 or later");
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}
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}
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};
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