mariadb/server-tools/instance-manager/options.cc

/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifdef __GNUC__
#pragma implementation 
#endif

#include "options.h"

#include <my_global.h>
#include <my_sys.h>
#include <my_getopt.h>


#define QUOTE2(x) #x
#define QUOTE(x) QUOTE2(x)
  
char Options::run_as_service;
const char *Options::log_file_name= QUOTE(DEFAULT_LOG_FILE_NAME);
const char *Options::pid_file_name= QUOTE(DEFAULT_PID_FILE_NAME);
const char *Options::socket_file_name= QUOTE(DEFAULT_SOCKET_FILE_NAME);

/*
  List of options, accepted by the instance manager.
  List must be closed with empty option.
*/

enum options {
  OPT_LOG= 256,
  OPT_PID_FILE,
  OPT_SOCKET,
  OPT_RUN_AS_SERVICE 
};
        
static struct my_option my_long_options[] =
{
  { "help", '?', "Display this help and exit.",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0 },

  { "log", OPT_LOG, "Path to log file. Used only with --run-as-service.",
    (gptr *) &Options::log_file_name, (gptr *) &Options::log_file_name,
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },

  { "pid-file", OPT_PID_FILE, "Pid file to use.",
    (gptr *) &Options::pid_file_name, (gptr *) &Options::pid_file_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
  
  { "socket", OPT_SOCKET, "Socket file to use for connection.",
    (gptr *) &Options::socket_file_name, (gptr *) &Options::socket_file_name,
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },

  { "run-as-service", OPT_RUN_AS_SERVICE,
    "Daemonize and start angel process.", (gptr *) &Options::run_as_service,
    0, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 0, 0 },

  { "version", 'V', "Output version information and exit.", 0, 0, 0,
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0 },

  { 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0 }
};

static void version()
{
  static const char mysqlmanager_version[] = "0.1-alpha";
  printf("%s  Ver %s for %s on %s\n", my_progname, mysqlmanager_version,
         SYSTEM_TYPE, MACHINE_TYPE);
}

static void usage()
{
  version();
  my_print_help(my_long_options);
}

C_MODE_START

static my_bool
get_one_option(int optid,
               const struct my_option *opt __attribute__((unused)),
               char *argument __attribute__((unused)))
{
  switch(optid) {
  case 'V':
    version();
    exit(0);
  case 'I':
  case '?':
    usage();
    exit(0);
  }
  return 0;
}

C_MODE_END


/* 
  - call load_defaults to load configuration file section
  - call handle_options to assign defaults and command-line arguments 
  to the class members
  if either of these function fail, exit the program
  May not return.
*/

void Options::load(int argc, char **argv)
{
  if (int rc= handle_options(&argc, &argv, my_long_options, get_one_option))
    exit(rc);
}