Function mainEntryClickHouseServer

programs/server/Server.cpp:517–548

int mainEntryClickHouseServer(int argc, char ** argv);
int mainEntryClickHouseServer(int argc, char ** argv)
{
    DB::Server app;

    /// Do not fork separate process from watchdog if we attached to terminal.
    /// Otherwise it breaks gdb usage.
    /// Can be overridden by environment variable (cannot use server config at this moment).
    if (argc > 0)
    {
        const char * env_watchdog = getenv("CLICKHOUSE_WATCHDOG_ENABLE"); // NOLINT(concurrency-mt-unsafe)
        if (env_watchdog)
        {
            if (0 == strcmp(env_watchdog, "1"))
                app.shouldSetupWatchdog(argv[0]);

            /// Other values disable watchdog explicitly.
        }
        else if (!isatty(STDIN_FILENO) && !isatty(STDOUT_FILENO) && !isatty(STDERR_FILENO))
            app.shouldSetupWatchdog(argv[0]);
    }

    try
    {
        return app.run(argc, argv);
    }
    catch (...)
    {
        std::cerr << DB::getCurrentExceptionMessage(true) << "\n";
        auto code = DB::getCurrentExceptionCode();
        return static_cast<UInt8>(code) ? code : 1;
    }
}

namespace DB
{