Files
scylladb/redis/query_utils.hh
Takuya ASADA d845fde560 redis: add ttl command
Add ttl command that returns remaining TTL of the key.

See: https://redis.io/commands/ttl
2020-04-27 13:58:33 +09:00

55 lines
1.4 KiB
C++

/*
* Copyright (C) 2019 pengjian.uestc @ gmail.com
*/
/*
* 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 "seastar/core/shared_ptr.hh"
#include "seastar/core/future.hh"
#include "bytes.hh"
#include "gc_clock.hh"
using namespace seastar;
namespace service {
class storage_proxy;
class client_state;
}
class service_permit;
namespace redis {
class redis_options;
struct strings_result {
bytes _result;
bool _has_result;
ttl_opt _ttl;
bytes& result() { return _result; }
bool has_result() const { return _has_result; }
gc_clock::duration ttl() { return _ttl.value(); }
bool has_ttl() { return _ttl.has_value(); }
};
future<lw_shared_ptr<strings_result>> read_strings(service::storage_proxy&, const redis_options&, const bytes&, service_permit);
}