system_stats.hh

/*
 * 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.
 *
 *  Copyright (c) 2016-2026, Peng Jian, pstack@163.com. All rights reserved.
 *
 */
#pragma once
#include <boost/intrusive/unordered_set.hpp>
#include <boost/intrusive/list.hpp>
#include <boost/intrusive_ptr.hpp>
#include <boost/lexical_cast.hpp>
#include <iomanip>
#include <sstream>
#include "core/app-template.hh"
#include "core/future-util.hh"
#include "core/timer-set.hh"
#include "core/shared_ptr.hh"
#include "core/stream.hh"
#include "core/memory.hh"
#include "core/units.hh"
#include "core/distributed.hh"
#include "core/vector-data-sink.hh"
#include "core/bitops.hh"
#include "core/slab.hh"
#include "core/align.hh"
#include "net/api.hh"
#include "net/packet-data-source.hh"
#include <unistd.h>
#include <cstdlib>
namespace redis {
using clock_type = lowres_clock;
struct system_stats {
    uint32_t _curr_connections {};
    uint32_t _total_connections {};
    clock_type::time_point _start_time;
public:
    system_stats() {
        _start_time = clock_type::time_point::max();
    }
    system_stats(clock_type::time_point start_time)
        : _start_time(start_time) {
    }
    system_stats self() {
        return *this;
    }
    void operator+=(const system_stats& other) {
        _curr_connections += other._curr_connections;
        _total_connections += other._total_connections;
        _start_time = std::min(_start_time, other._start_time);
    }
    future<> stop() { return make_ready_future<>(); }
};
}