ghost@darkstar $ ping -c 3 http://bt4.t-ru.org
ping: http://bt4.t-ru.org: Name or service not known

cat /sys/class/net/eno1/carrier

cat /sys/class/net/eno1/operstate

cli_sd = socket(AF_INET, SOCK_STREAM, 0);
setsockopt(cli_sd, SOL_SOCKET, SO_RCVTIME0, ...);
setsockopt(cli_sd, SOL_SOCKET, SO_SNDTIME0, ...);
connect(cli_sd, ...);
while (1) {
    send(...);
    recv(...);
}

srv_sd = socket(AF_INET, SOCK_STREAM, 0);
setsockopt(srv_sd, SOL_SOCKET, SO_REUSEADDR, ...);
bind(...);
while (1) {
    cli_sd = accept(...);
    setsockopt(..., SO_RCVTIME0, ...);
    setsockopt(..., SO_SNDTIME0, ...);
    int rd = recv(...);
    if (errno == ECONNRESET) {
        shutdown(cli_sd, ...);
        close(cli_sd, ...);
        continue;
    }
    send(...);
}

std::atomic_int g_thr_cnt(0);


class Logger
{
public:
    ~Logger() {};

    static Logger& get_logger()
    {
        static Logger logger;
        return logger;
    }

    void log(const std::string& _msg)
    {
        m_messages.push_back(_msg);
    }

    void log_job(std::atomic_int& _counter)
    {
        while (_counter > 0)
        {
            cout << "Log job" << endl;
            usleep(670000);
        }
        cout << "Logger exited" << endl;
    }

protected:
    std::list<std::string> m_messages;

    Logger() {};
    Logger(const Logger& _obj); // no copies

    const Logger& operator=(const Logger& _obj); // no assignment
};

void sig_handler(int _sig)
{
    switch (_sig)
    {
    case SIGTERM:
        {
            cout << "Got SIGTERM" << endl;
        }
        g_thr_cnt = 0;
        break;
    default:
        cout << "No, no, no, David Blaine, no street magic!" << endl;
    }
}


int main()
{
    g_thr_cnt = 1;

    signal(SIGTERM, sig_handler);

    Logger& logger = Logger::get_logger();
    std::thread thr(&Logger::log_job, std::ref(logger), std::ref(g_thr_cnt));
    thr.join();

    cout << "[exited]" << endl;
    return 0;
}

Scanning dependencies of target thr
make[2]: Warning: File '/home/user/work/log-thr/src/main.cpp' has modification time 6673 s in the future
[ 50%] Building CXX object CMakeFiles/thr.dir/main.cpp.o
In file included from /usr/include/c++/4.9/thread:39:0,
                 from /home/user/work/log-thr/src/main.cpp:2:
/usr/include/c++/4.9/functional: In instantiation of ‘struct std::_Bind_simple<std::_Mem_fn<void (Logger::*)(std::__atomic_base<int>&)>(std::reference_wrapper<Logger>, std::reference_wrapper<std::__atomic_base<int> >)>’:
/usr/include/c++/4.9/thread:140:47:   required from ‘std::thread::thread(_Callable&&, _Args&& ...) [with _Callable = void (Logger::*)(std::__atomic_base<int>&); _Args = {std::reference_wrapper<Logger>, std::reference_wrapper<std::__atomic_base<int> >}]’
/home/user/work/log-thr/src/main.cpp:77:76:   required from here
/usr/include/c++/4.9/functional:1665:61: error: no type named ‘type’ in ‘class std::result_of<std::_Mem_fn<void (Logger::*)(std::__atomic_base<int>&)>(std::reference_wrapper<Logger>, std::reference_wrapper<std::__atomic_base<int> >)>’
       typedef typename result_of<_Callable(_Args...)>::type result_type;
                                                             ^
/usr/include/c++/4.9/functional:1695:9: error: no type named ‘type’ in ‘class std::result_of<std::_Mem_fn<void (Logger::*)(std::__atomic_base<int>&)>(std::reference_wrapper<Logger>, std::reference_wrapper<std::__atomic_base<int> >)>’
         _M_invoke(_Index_tuple<_Indices...>)
         ^
CMakeFiles/thr.dir/build.make:62: recipe for target 'CMakeFiles/thr.dir/main.cpp.o' failed
make[2]: *** [CMakeFiles/thr.dir/main.cpp.o] Error 1
CMakeFiles/Makefile2:72: recipe for target 'CMakeFiles/thr.dir/all' failed
make[1]: *** [CMakeFiles/thr.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

class BackgroundTask
{
public:
    BackgroundTask();
    ~BackgroundTask();

    void odd_job()
    {
        while (1)
        {
            // do something useful
        }
    }

    void slot_need_stop()
    {
        std::terminate();
    }
};

    std::thread jobt(&BackgroundTask::odd_job, &job);

    jobt.join();

template(name="outfmt" type="list" option.jsonf="on") {
         property(outname="@timestamp"
                  name="timereported" 
                  dateFormat="rfc3339" format="jsonf")
         property(outname="host"
                  name="hostname" format="jsonf")
         property(outname="severity"
                  name="syslogseverity-text" caseConversion="upper" format="jsonf")
         property(outname="facility"
                  name="syslogfacility-text" format="jsonf")
         property(outname="syslog-tag"
                  name="syslogtag" format="jsonf")
         property(outname="source"
                  name="app-name" format="jsonf")
         property(outname="message"
                  name="msg" format="jsonf")

     }

    openlog("testlog", LOG_CONS, LOG_USER);
    syslog(LOG_INFO, "TESTLOG: %s", argv[1]);

if $programmname startswith "testlog" then /home/user/test/test.log

root@darkstar:/home/live# dmesg | grep -i rtw
[   15.357660] rtw_8821ce 0000:02:00.0: enabling device (0000 -> 0003)
[   15.615515] rtw_8821ce 0000:02:00.0: Firmware version 24.8.0, H2C version 12
[   15.634227] rtw_8821ce 0000:02:00.0: rfe 4 isn't supported
[   15.634385] rtw_8821ce 0000:02:00.0: failed to setup chip efuse info
[   15.634423] rtw_8821ce 0000:02:00.0: failed to setup chip information

root@darkstar:/home/live# lspci
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
root@darkstar:/home/live# iwconfig
lo        no wireless extensions.
root@darkstar:/home/live# inxi -nx
Network:   Device-1: Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter vendor: AzureWave driver: N/A port: 3000 
           bus-ID: 02:00.0 

root@darkstar:/home/live# lsmod | grep -i rtw
rtw88_8821ce           16384  0
rtw88_8821c            94208  1 rtw88_8821ce
rtw88_pci              28672  1 rtw88_8821ce
rtw88_core            167936  2 rtw88_pci,rtw88_8821c
mac80211             1069056  2 rtw88_pci,rtw88_core
cfg80211             1032192  2 rtw88_core,mac80211

Linux darkstar.home.arpa 5.15.2 #1 SMP PREEMPT Fri Nov 12 11:44:33 CST 2021 x86_64 Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz GenuineIntel GNU/Linux