Files
scylladb/service/pager/query_pagers.hh
Piotr Sarna 1d34ef38a8 cql3: make pagers use time_point instead of duration
A standard way for passing a timeout parameter is specifying
a time_point, while pagers used to take a duration in order
to compute time points on the fly. This patch adds a timeout
parameter, which is a time_point, to fetch_page().
2018-09-27 15:18:06 +02:00

75 lines
2.4 KiB
C++

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (C) 2015 ScyllaDB
*
* Modified by 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 <vector>
#include <seastar/core/shared_ptr.hh>
#include "schema.hh"
#include "query-result.hh"
#include "query-request.hh"
#include "service/query_state.hh"
#include "cql3/selection/selection.hh"
#include "cql3/query_options.hh"
#include "query_pager.hh"
namespace service {
namespace pager {
class query_pagers {
public:
static bool may_need_paging(const schema& s, uint32_t page_size, const query::read_command&,
const dht::partition_range_vector&);
static ::shared_ptr<query_pager> pager(schema_ptr,
shared_ptr<const cql3::selection::selection>,
service::query_state&,
const cql3::query_options&,
lw_shared_ptr<query::read_command>,
dht::partition_range_vector,
cql3::cql_stats& stats,
::shared_ptr<cql3::restrictions::statement_restrictions> filtering_restrictions = nullptr);
};
}
}