Files
scylladb/db/commitlog/rp_set.hh
Avi Kivity fcb8d040e8 treewide: use Software Package Data Exchange (SPDX) license identifiers
Instead of lengthy blurbs, switch to single-line, machine-readable
standardized (https://spdx.dev) license identifiers. The Linux kernel
switched long ago, so there is strong precedent.

Three cases are handled: AGPL-only, Apache-only, and dual licensed.
For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0),
reasoning that our changes are extensive enough to apply our license.

The changes we applied mechanically with a script, except to
licenses/README.md.

Closes #9937
2022-01-18 12:15:18 +01:00

60 lines
907 B
C++

/*
*/
/*
* Modified by ScyllaDB
* Copyright (C) 2016-present ScyllaDB
*/
/*
* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
*/
#pragma once
#include <unordered_map>
#include "replay_position.hh"
namespace db {
class rp_set {
public:
typedef std::unordered_map<segment_id_type, uint64_t> usage_map;
rp_set()
{}
rp_set(const replay_position & rp)
{
put(rp);
}
rp_set(rp_set&&) = default;
rp_set& operator=(rp_set&&) = default;
void put(const replay_position& rp) {
_usage[rp.id]++;
}
void put(rp_handle && h) {
if (h) {
put(h.rp());
}
h.release();
}
size_t size() const {
return _usage.size();
}
bool empty() const {
return _usage.empty();
}
const usage_map& usage() const {
return _usage;
}
private:
usage_map _usage;
};
}