mirror of
https://github.com/matrix-construct/construct
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35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_DB_DATABASE_COMPARATOR_H
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// This file is not part of the standard include stack because it requires
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// RocksDB symbols which we cannot forward declare. It is used internally
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// and does not need to be included by general users of IRCd.
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struct ircd::db::database::comparator final
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:rocksdb::Comparator
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{
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using Slice = rocksdb::Slice;
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database *d;
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db::comparator user;
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bool CanKeysWithDifferentByteContentsBeEqual() const noexcept; //TODO: override
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bool IsSameLengthImmediateSuccessor(const Slice &s, const Slice &t) const noexcept override;
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void FindShortestSeparator(std::string *start, const Slice &limit) const noexcept override;
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void FindShortSuccessor(std::string *key) const noexcept override;
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int Compare(const Slice &a, const Slice &b) const noexcept override;
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bool Equal(const Slice &a, const Slice &b) const noexcept override;
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const char *Name() const noexcept override;
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comparator(database *const &d, db::comparator user);
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};
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