mirror of
https://github.com/matrix-construct/construct
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64 lines
2.2 KiB
C++
64 lines
2.2 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_COLUMN_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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/// Internal column interface panel. This is db::database::column, not
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/// db::column. The latter is a public shared-pointer front-end which
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/// points to an internally managed database::column.
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namespace ircd::db
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{
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const descriptor &describe(const database::column &);
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const std::string &name(const database::column &);
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uint32_t id(const database::column &);
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bool dropped(const database::column &);
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void drop(database::column &); // Request to erase column from db
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std::shared_ptr<const database::column> shared_from(const database::column &);
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std::shared_ptr<database::column> shared_from(database::column &);
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}
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struct ircd::db::database::column final
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:std::enable_shared_from_this<database::column>
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,rocksdb::ColumnFamilyDescriptor
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{
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database *d;
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db::descriptor *descriptor;
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std::type_index key_type;
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std::type_index mapped_type;
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comparator cmp;
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prefix_transform prefix;
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compaction_filter cfilter;
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std::shared_ptr<struct database::stats> stats;
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rocksdb::BlockBasedTableOptions table_opts;
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custom_ptr<rocksdb::ColumnFamilyHandle> handle;
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public:
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operator const rocksdb::ColumnFamilyOptions &() const;
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operator const rocksdb::ColumnFamilyHandle *() const;
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operator const database &() const;
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operator rocksdb::ColumnFamilyHandle *();
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operator database &();
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explicit column(database &d, db::descriptor &);
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column() = delete;
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column(column &&) = delete;
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column(const column &) = delete;
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column &operator=(column &&) = delete;
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column &operator=(const column &) = delete;
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~column() noexcept;
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};
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