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construct/include/ircd/db/db.h
2018-02-07 23:15:17 -08:00

104 lines
2.7 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_H
/// Database: an object store from the primitives of `cell`, `column`, and `row`.
namespace ircd::db
{
struct init;
struct gopts;
struct sopts;
struct cell;
struct row;
struct column;
struct index;
struct database;
enum class pos :int8_t;
// Errors for the database subsystem. The exceptions that use _HIDENAME
// are built from RocksDB errors which already have an info string with
// an included name.
//
IRCD_EXCEPTION(ircd::error, error)
IRCD_EXCEPTION(error, not_found)
IRCD_EXCEPTION(error, schema_error)
IRCD_EXCEPTION_HIDENAME(error, corruption)
IRCD_EXCEPTION_HIDENAME(error, not_supported)
IRCD_EXCEPTION_HIDENAME(error, invalid_argument)
IRCD_EXCEPTION_HIDENAME(error, io_error)
IRCD_EXCEPTION_HIDENAME(error, merge_in_progress)
IRCD_EXCEPTION_HIDENAME(error, incomplete)
IRCD_EXCEPTION_HIDENAME(error, shutdown_in_progress)
IRCD_EXCEPTION_HIDENAME(error, timed_out)
IRCD_EXCEPTION_HIDENAME(error, aborted)
IRCD_EXCEPTION_HIDENAME(error, busy)
IRCD_EXCEPTION_HIDENAME(error, expired)
IRCD_EXCEPTION_HIDENAME(error, try_again)
// db subsystem has its own logging facility
extern struct log::log log;
}
/// Types of iterator operations
enum class ircd::db::pos
:int8_t
{
FRONT = -2, // .front() | first element
PREV = -1, // std::prev() | previous element
END = 0, // break; | exit iteration (or past the end)
NEXT = 1, // continue; | next element
BACK = 2, // .back() | last element
};
#include "delta.h"
#include "comparator.h"
#include "prefix.h"
#include "merge.h"
#include "database/rocksdb.h"
#include "database/database.h"
#include "database/descriptor.h"
#include "database/options.h"
#include "database/snapshot.h"
#include "opts.h"
#include "column.h"
#include "cell.h"
#include "row.h"
#include "index.h"
#include "json.h"
#include "txn.h"
//
// Misc utils
//
namespace ircd::db
{
extern const char *const version;
std::string path(const std::string &name);
std::vector<std::string> available();
void log_rdb_perf_context(const bool &all = true);
string_view reflect(const pos &);
}
namespace ircd
{
using db::database;
}
/// Database subsystem initialization and destruction
struct ircd::db::init
{
init();
~init() noexcept;
};