mirror of
https://github.com/matrix-construct/construct
synced 2024-07-03 09:18:19 +02:00
99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
/*
|
|
* Copyright (C) 2017 Charybdis Development Team
|
|
* Copyright (C) 2017 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_IOV_H
|
|
|
|
namespace ircd::db
|
|
{
|
|
struct iov;
|
|
|
|
bool until(const iov &, const std::function<bool (const delta &)> &);
|
|
void for_each(const iov &, const std::function<void (const delta &)> &);
|
|
std::string debug(const iov &);
|
|
}
|
|
|
|
class ircd::db::iov
|
|
{
|
|
database *d {nullptr};
|
|
std::unique_ptr<rocksdb::WriteBatch> wb;
|
|
|
|
public:
|
|
struct opts;
|
|
struct checkpoint;
|
|
struct append;
|
|
struct handler;
|
|
|
|
explicit operator const rocksdb::WriteBatch &() const;
|
|
explicit operator const database &() const;
|
|
explicit operator rocksdb::WriteBatch &();
|
|
explicit operator database &();
|
|
|
|
string_view get(const op &, const string_view &col, const string_view &key) const;
|
|
string_view at(const op &, const string_view &col, const string_view &key) const;
|
|
bool has(const op &, const string_view &col, const string_view &key) const;
|
|
|
|
delta get(const op &, const string_view &col) const;
|
|
delta at(const op &, const string_view &col) const;
|
|
bool has(const op &, const string_view &col) const;
|
|
bool has(const op &) const;
|
|
|
|
size_t bytes() const;
|
|
size_t size() const;
|
|
|
|
// commit
|
|
void operator()(database &, const sopts & = {});
|
|
void operator()(const sopts & = {});
|
|
|
|
// clear
|
|
void clear();
|
|
|
|
iov() = default;
|
|
iov(database &);
|
|
iov(database &, const opts &);
|
|
~iov() noexcept;
|
|
};
|
|
|
|
struct ircd::db::iov::append
|
|
{
|
|
append(iov &, database &, const delta &);
|
|
append(iov &, column &, const column::delta &);
|
|
append(iov &, const cell::delta &);
|
|
append(iov &, const row::delta &);
|
|
append(iov &, const delta &);
|
|
append(iov &, const string_view &key, const json::iov &);
|
|
};
|
|
|
|
struct ircd::db::iov::checkpoint
|
|
{
|
|
iov &t;
|
|
|
|
checkpoint(iov &);
|
|
~checkpoint() noexcept;
|
|
};
|
|
|
|
struct ircd::db::iov::opts
|
|
{
|
|
size_t reserve_bytes = 0;
|
|
size_t max_bytes = 0;
|
|
};
|