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construct/include/ircd/db/database/env/writable_file.h

49 lines
2.1 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_DB_DATABASE_ENV_WRITABLE_FILE_H
// This file is not part of the standard include stack because it requires
// RocksDB symbols which we cannot forward declare. It is used internally
// and does not need to be included by general users of IRCd.
struct ircd::db::database::env::writable_file final
:rocksdb::WritableFile
{
using Status = rocksdb::Status;
using Slice = rocksdb::Slice;
using IOPriority = rocksdb::Env::IOPriority;
database &d;
std::unique_ptr<rocksdb::WritableFile> defaults;
Status Append(const Slice& data) noexcept override;
Status PositionedAppend(const Slice& data, uint64_t offset) noexcept override;
Status Truncate(uint64_t size) noexcept override;
Status Close() noexcept override;
Status Flush() noexcept override;
Status Sync() noexcept override;
Status Fsync() noexcept override;
bool IsSyncThreadSafe() const noexcept override;
void SetIOPriority(IOPriority pri) noexcept override;
IOPriority GetIOPriority() noexcept override;
uint64_t GetFileSize() noexcept override;
void GetPreallocationStatus(size_t* block_size, size_t* last_allocated_block) noexcept override;
size_t GetUniqueId(char* id, size_t max_size) const noexcept override;
Status InvalidateCache(size_t offset, size_t length) noexcept override;
void SetPreallocationBlockSize(size_t size) noexcept override;
void PrepareWrite(size_t offset, size_t len) noexcept override;
Status Allocate(uint64_t offset, uint64_t len) noexcept override;
Status RangeSync(uint64_t offset, uint64_t nbytes) noexcept override;
writable_file(database *const &d, const std::string &name, const EnvOptions &, std::unique_ptr<WritableFile> defaults);
~writable_file() noexcept;
};