Function init_common_variables

sql/mysqld.cc:1531–1710

}

int init_common_variables(char *arg_mysql_home)
{
  umask(((~my_umask) & 0666));
  connection_errors_select= 0;
  connection_errors_accept= 0;
  connection_errors_tcpwrap= 0;
  connection_errors_internal= 0;
  connection_errors_max_connection= 0;
  connection_errors_peer_addr= 0;
  my_decimal_set_zero(&decimal_zero); // set decimal_zero constant;
  tzset();      // Set tzname

  max_system_variables.pseudo_thread_id= (ulong)~0;
  server_start_time= flush_status_time= my_time(0);


  if (init_thread_environment() ||
      mysql_init_variables(arg_mysql_home))
    return 1;

  if (ignore_db_dirs_init())
    return 1;

#ifdef HAVE_TZNAME
  {
    struct tm tm_tmp;
    localtime_r(&server_start_time,&tm_tmp);
    strmake(system_time_zone, tzname[tm_tmp.tm_isdst != 0 ? 1 : 0],
            sizeof(system_time_zone)-1);

 }
#endif


  /* TODO: remove this when my_time_t is 64 bit compatible */
  if (!IS_TIME_T_VALID_FOR_TIMESTAMP(server_start_time))
  {
    sql_print_error("This MySQL server doesn't support dates later then 2038");
    return 1;
  }

  if (gethostname(glob_hostname,sizeof(glob_hostname)) < 0)
  {
    strmake(glob_hostname, STRING_WITH_LEN("localhost"));
    sql_print_warning("gethostname failed, using '%s' as hostname",
                      glob_hostname);
    strmake(default_logfile_name, STRING_WITH_LEN("mysql"));
  }
  else
    strmake(default_logfile_name, glob_hostname,
      sizeof(default_logfile_name)-5);

  strmake(pidfile_name, default_logfile_name, sizeof(pidfile_name)-5);
  strmov(fn_ext(pidfile_name),".pid");    // Add proper extension

  if (fix_paths())
    return 1;