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

95 lines
4.8 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_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.
/// Internal environment hookup.
///
struct ircd::db::database::env final
:rocksdb::Env
{
struct writable_file;
struct sequential_file;
struct random_access_file;
struct random_rw_file;
struct directory;
struct file_lock;
struct state;
using Status = rocksdb::Status;
using EnvOptions = rocksdb::EnvOptions;
using Directory = rocksdb::Directory;
using FileLock = rocksdb::FileLock;
using WritableFile = rocksdb::WritableFile;
using SequentialFile = rocksdb::SequentialFile;
using RandomAccessFile = rocksdb::RandomAccessFile;
using RandomRWFile = rocksdb::RandomRWFile;
using Logger = rocksdb::Logger;
using ThreadStatus = rocksdb::ThreadStatus;
using ThreadStatusUpdater = rocksdb::ThreadStatusUpdater;
database &d;
Env &defaults
{
*rocksdb::Env::Default()
};
std::unique_ptr<struct state> st;
Status NewSequentialFile(const std::string& f, std::unique_ptr<SequentialFile>* r, const EnvOptions& options) noexcept override;
Status NewRandomAccessFile(const std::string& f, std::unique_ptr<RandomAccessFile>* r, const EnvOptions& options) noexcept override;
Status NewWritableFile(const std::string& f, std::unique_ptr<WritableFile>* r, const EnvOptions& options) noexcept override;
Status ReopenWritableFile(const std::string& fname, std::unique_ptr<WritableFile>* result, const EnvOptions& options) noexcept override;
Status ReuseWritableFile(const std::string& fname, const std::string& old_fname, std::unique_ptr<WritableFile>* r, const EnvOptions& options) noexcept override;
Status NewRandomRWFile(const std::string& fname, std::unique_ptr<RandomRWFile>* result, const EnvOptions& options) noexcept override;
Status NewDirectory(const std::string& name, std::unique_ptr<Directory>* result) noexcept override;
Status FileExists(const std::string& f) noexcept override;
Status GetChildren(const std::string& dir, std::vector<std::string>* r) noexcept override;
Status GetChildrenFileAttributes(const std::string& dir, std::vector<FileAttributes>* result) noexcept override;
Status DeleteFile(const std::string& f) noexcept override;
Status CreateDir(const std::string& d) noexcept override;
Status CreateDirIfMissing(const std::string& d) noexcept override;
Status DeleteDir(const std::string& d) noexcept override;
Status GetFileSize(const std::string& f, uint64_t* s) noexcept override;
Status GetFileModificationTime(const std::string& fname, uint64_t* file_mtime) noexcept override;
Status RenameFile(const std::string& s, const std::string& t) noexcept override;
Status LinkFile(const std::string& s, const std::string& t) noexcept override;
Status LockFile(const std::string& f, FileLock** l) noexcept override;
Status UnlockFile(FileLock* l) noexcept override;
void Schedule(void (*f)(void* arg), void* a, Priority pri, void* tag = nullptr, void (*u)(void* arg) = 0) noexcept override;
int UnSchedule(void* tag, Priority pri) noexcept override;
void StartThread(void (*f)(void*), void* a) noexcept override;
void WaitForJoin() noexcept override;
unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const noexcept override;
Status GetTestDirectory(std::string* path) noexcept override;
Status NewLogger(const std::string& fname, std::shared_ptr<Logger>* result) noexcept override;
uint64_t NowMicros() noexcept override;
void SleepForMicroseconds(int micros) noexcept override;
Status GetHostName(char* name, uint64_t len) noexcept override;
Status GetCurrentTime(int64_t* unix_time) noexcept override;
Status GetAbsolutePath(const std::string& db_path, std::string* output_path) noexcept override;
void SetBackgroundThreads(int num, Priority pri) noexcept override;
void IncBackgroundThreadsIfNeeded(int num, Priority pri) noexcept override;
void LowerThreadPoolIOPriority(Priority pool = LOW) noexcept override;
std::string TimeToString(uint64_t time) noexcept override;
Status GetThreadList(std::vector<ThreadStatus>* thread_list) noexcept override;
ThreadStatusUpdater* GetThreadStatusUpdater() const noexcept override;
uint64_t GetThreadID() const noexcept override;
int GetBackgroundThreads(Priority pri) noexcept override;
env(database *const &d);
~env() noexcept;
};