mirror of
https://github.com/matrix-construct/construct
synced 2024-11-04 12:58:53 +01:00
155 lines
4.3 KiB
C++
155 lines
4.3 KiB
C++
/*
|
|
* Copyright (C) 2016 Charybdis Development Team
|
|
* Copyright (C) 2016 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#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 op :uint8_t;
|
|
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;
|
|
}
|
|
|
|
/// Forward declarations for rocksdb because we do not include it here.
|
|
///
|
|
/// These are forward declarations to objects we may carry a pointer to.
|
|
/// Users of ircd::db should not have to deal directly with these types.
|
|
///
|
|
namespace rocksdb
|
|
{
|
|
struct DB;
|
|
struct Slice;
|
|
struct Options;
|
|
struct DBOptions;
|
|
struct ColumnFamilyOptions;
|
|
struct PlainTableOptions;
|
|
struct BlockBasedTableOptions;
|
|
struct Cache;
|
|
struct Iterator;
|
|
struct ColumnFamilyHandle;
|
|
struct Snapshot;
|
|
struct WriteBatch;
|
|
}
|
|
|
|
//
|
|
// Misc utils
|
|
//
|
|
namespace ircd::db
|
|
{
|
|
extern const char *const version;
|
|
|
|
rocksdb::Slice slice(const string_view &);
|
|
string_view slice(const rocksdb::Slice &);
|
|
|
|
bool valid(const rocksdb::Iterator &);
|
|
string_view key(const rocksdb::Iterator &);
|
|
string_view val(const rocksdb::Iterator &);
|
|
|
|
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 &);
|
|
|
|
// Indicates an op uses both a key and value for its operation. Some only use
|
|
// a key name so an empty value argument in a delta is okay when false.
|
|
bool value_required(const op &);
|
|
string_view reflect(const op &);
|
|
}
|
|
|
|
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
|
|
};
|
|
|
|
enum ircd::db::op
|
|
:uint8_t
|
|
{
|
|
GET, // no-op sentinel, do not use (debug asserts)
|
|
SET, // (batch.Put)
|
|
MERGE, // (batch.Merge)
|
|
DELETE, // (batch.Delete)
|
|
DELETE_RANGE, // (batch.DeleteRange)
|
|
SINGLE_DELETE, // (batch.SingleDelete)
|
|
};
|
|
|
|
#include "delta.h"
|
|
#include "comparator.h"
|
|
#include "prefix.h"
|
|
#include "merge.h"
|
|
#include "database.h"
|
|
#include "opts.h"
|
|
#include "column.h"
|
|
#include "cell.h"
|
|
#include "row.h"
|
|
#include "index.h"
|
|
#include "json.h"
|
|
#include "iov.h"
|
|
|
|
namespace ircd
|
|
{
|
|
using db::database;
|
|
}
|
|
|
|
struct ircd::db::init
|
|
{
|
|
init();
|
|
~init() noexcept;
|
|
};
|