75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
/*
|
|
* This file is open source software, licensed to you under the terms
|
|
* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
|
|
* distributed with this work for additional information regarding copyright
|
|
* ownership. 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <seastar/core/sstring.hh>
|
|
|
|
namespace memcache {
|
|
|
|
using namespace seastar;
|
|
|
|
class item;
|
|
class cache;
|
|
|
|
class item_key {
|
|
private:
|
|
sstring _key;
|
|
size_t _hash;
|
|
public:
|
|
item_key() = default;
|
|
item_key(item_key&) = default;
|
|
item_key(sstring key)
|
|
: _key(key)
|
|
, _hash(std::hash<sstring>()(key))
|
|
{}
|
|
item_key(item_key&& other)
|
|
: _key(std::move(other._key))
|
|
, _hash(other._hash)
|
|
{
|
|
other._hash = 0;
|
|
}
|
|
size_t hash() const {
|
|
return _hash;
|
|
}
|
|
const sstring& key() const {
|
|
return _key;
|
|
}
|
|
bool operator==(const item_key& other) const {
|
|
return other._hash == _hash && other._key == _key;
|
|
}
|
|
void operator=(item_key&& other) {
|
|
_key = std::move(other._key);
|
|
_hash = other._hash;
|
|
other._hash = 0;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
namespace std {
|
|
|
|
template <>
|
|
struct hash<memcache::item_key> {
|
|
size_t operator()(const memcache::item_key& key) {
|
|
return key.hash();
|
|
}
|
|
};
|
|
|
|
} /* namespace std */
|