src/helper/util.c

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Øyvind Harboe                                   *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  18  ***************************************************************************/
  19
  20 /* this file contains various functionality useful to standalone systems */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include "log.h"
  27 #include "time_support.h"
  28
  29 static int util_Jim_Command_ms(Jim_Interp *interp,
  30         int argc,
  31         Jim_Obj * const *argv)
  32 {
  33         if (argc != 1) {
  34                 Jim_WrongNumArgs(interp, 1, argv, "ls ?dir?");
  35                 return JIM_ERR;
  36         }
  37
  38         /* Cast from 64 to 32 bit int works for 2's-compliment
  39          * when calculating differences*/
  40         Jim_SetResult(interp, Jim_NewIntObj(interp, (int)timeval_ms()));
  41
  42         return JIM_OK;
  43 }
  44
  45 static const struct command_registration util_command_handlers[] = {
  46         /* jim handlers */
  47         {
  48                 .name = "ms",
  49                 .mode = COMMAND_ANY,
  50                 .jim_handler = util_Jim_Command_ms,
  51                 .help =
  52                         "Returns ever increasing milliseconds. Used to calculuate differences in time.",
  53                 .usage = "",
  54         },
  55         COMMAND_REGISTRATION_DONE
  56 };
  57
  58 int util_init(struct command_context *cmd_ctx)
  59 {
  60         return register_commands(cmd_ctx, NULL, util_command_handlers);
  61 }