mirror of
https://github.com/matrix-construct/construct
synced 2024-07-23 10:58:37 +02:00
44 lines
1.5 KiB
C++
44 lines
1.5 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_ENV_SEQUENTIAL_FILE_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::env::sequential_file final
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:rocksdb::SequentialFile
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{
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using Status = rocksdb::Status;
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using Slice = rocksdb::Slice;
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static const fs::fd::opts default_opts;
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database &d;
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ctx::mutex mutex;
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fs::fd::opts opts;
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fs::fd fd;
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size_t _buffer_align;
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off_t offset;
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bool aio;
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bool use_direct_io() const noexcept override;
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size_t GetRequiredBufferAlignment() const noexcept override;
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Status InvalidateCache(size_t offset, size_t length) noexcept override;
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Status PositionedRead(uint64_t offset, size_t n, Slice *result, char *scratch) noexcept override;
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Status Read(size_t n, Slice *result, char *scratch) noexcept override;
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Status Skip(uint64_t size) noexcept override;
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sequential_file(database *const &d, const std::string &name, const EnvOptions &);
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~sequential_file() noexcept;
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};
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