4fa12f2fb8
The header sits in many other headers, but there's a handy schema_fwd.hh that's tiny and contains needed declarations for other headers. So replace shema.hh with schema_fwd.hh in most of the headers (and remove completely from some). Signed-off-by: Pavel Emelyanov <xemul@scylladb.com> Message-Id: <20200303102050.18462-1-xemul@scylladb.com>
86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
/*
|
|
* Copyright (C) 2018 ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* This file is part of Scylla.
|
|
*
|
|
* Scylla is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Scylla is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "bytes.hh"
|
|
#include "schema_fwd.hh"
|
|
#include "service/migration_manager.hh"
|
|
#include "utils/UUID.hh"
|
|
|
|
#include <seastar/core/future.hh>
|
|
#include <seastar/core/sstring.hh>
|
|
|
|
#include <unordered_map>
|
|
|
|
namespace cql3 {
|
|
class query_processor;
|
|
}
|
|
|
|
namespace cdc {
|
|
class stream_id;
|
|
class topology_description;
|
|
} // namespace cdc
|
|
|
|
namespace db {
|
|
|
|
class system_distributed_keyspace {
|
|
public:
|
|
static constexpr auto NAME = "system_distributed";
|
|
static constexpr auto VIEW_BUILD_STATUS = "view_build_status";
|
|
|
|
/* Nodes use this table to communicate new CDC stream generations to other nodes. */
|
|
static constexpr auto CDC_TOPOLOGY_DESCRIPTION = "cdc_topology_description";
|
|
|
|
/* This table is used by CDC clients to learn about avaliable CDC streams. */
|
|
static constexpr auto CDC_DESC = "cdc_description";
|
|
|
|
/* Information required to modify/query some system_distributed tables, passed from the caller. */
|
|
struct context {
|
|
/* How many different token owners (endpoints) are there in the token ring? */
|
|
size_t num_token_owners;
|
|
};
|
|
private:
|
|
cql3::query_processor& _qp;
|
|
service::migration_manager& _mm;
|
|
|
|
public:
|
|
system_distributed_keyspace(cql3::query_processor&, service::migration_manager&);
|
|
|
|
future<> start();
|
|
future<> stop();
|
|
|
|
future<std::unordered_map<utils::UUID, sstring>> view_status(sstring ks_name, sstring view_name) const;
|
|
future<> start_view_build(sstring ks_name, sstring view_name) const;
|
|
future<> finish_view_build(sstring ks_name, sstring view_name) const;
|
|
future<> remove_view(sstring ks_name, sstring view_name) const;
|
|
|
|
future<> insert_cdc_topology_description(db_clock::time_point streams_ts, const cdc::topology_description&, context);
|
|
future<std::optional<cdc::topology_description>> read_cdc_topology_description(db_clock::time_point streams_ts, context);
|
|
future<> expire_cdc_topology_description(db_clock::time_point streams_ts, db_clock::time_point expiration_time, context);
|
|
|
|
future<> create_cdc_desc(db_clock::time_point streams_ts, const std::vector<cdc::stream_id>&, context);
|
|
future<> expire_cdc_desc(db_clock::time_point streams_ts, db_clock::time_point expiration_time, context);
|
|
future<bool> cdc_desc_exists(db_clock::time_point streams_ts, context);
|
|
};
|
|
|
|
}
|