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scylladb/replica/query_state.hh
Avi Kivity f3eade2f62 treewide: relicense to ScyllaDB-Source-Available-1.0
Drop the AGPL license in favor of a source-available license.
See the blog post [1] for details.

[1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
2024-12-18 17:45:13 +02:00

51 lines
1.6 KiB
C++

/*
* Copyright (C) 2023-present ScyllaDB
*/
/*
* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
*/
#pragma once
#include "query-request.hh"
#include "query-result.hh"
#include "query-result-writer.hh"
namespace replica {
struct query_state {
explicit query_state(schema_ptr s,
const query::read_command& cmd,
query::result_options opts,
const dht::partition_range_vector& ranges,
query::result_memory_accounter memory_accounter)
: schema(std::move(s))
, cmd(cmd)
, builder(cmd.slice, opts, std::move(memory_accounter), cmd.tombstone_limit)
, limit(cmd.get_row_limit())
, partition_limit(cmd.partition_limit)
, current_partition_range(ranges.begin())
, range_end(ranges.end()){
}
schema_ptr schema;
const query::read_command& cmd;
query::result::builder builder;
uint64_t limit;
uint32_t partition_limit;
bool range_empty = false; // Avoid ubsan false-positive when moving after construction
dht::partition_range_vector::const_iterator current_partition_range;
dht::partition_range_vector::const_iterator range_end;
uint64_t remaining_rows() const {
return limit - builder.row_count();
}
uint32_t remaining_partitions() const {
return partition_limit - builder.partition_count();
}
bool done() const {
return !remaining_rows() || !remaining_partitions() || current_partition_range == range_end || builder.is_short_read();
}
};
} // namespace replica