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, see <http://www.gnu.org/licenses/>. *
  16  ***************************************************************************/
  17
  18 /* this file contains various functionality useful to standalone systems */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "log.h"
  25 #include "time_support.h"
  26
  27 static int util_Jim_Command_ms(Jim_Interp *interp,
  28         int argc,
  29         Jim_Obj * const *argv)
  30 {
  31         if (argc != 1) {
  32                 Jim_WrongNumArgs(interp, 1, argv, "ls ?dir?");
  33                 return JIM_ERR;
  34         }
  35
  36         /* Cast from 64 to 32 bit int works for 2's-compliment
  37          * when calculating differences*/
  38         Jim_SetResult(interp, Jim_NewIntObj(interp, (int)timeval_ms()));
  39
  40         return JIM_OK;
  41 }
  42
  43 static const struct command_registration util_command_handlers[] = {
  44         /* jim handlers */
  45         {
  46                 .name = "ms",
  47                 .mode = COMMAND_ANY,
  48                 .jim_handler = util_Jim_Command_ms,
  49                 .help =
  50                         "Returns ever increasing milliseconds. Used to calculuate differences in time.",
  51                 .usage = "",
  52         },
  53         COMMAND_REGISTRATION_DONE
  54 };
  55
  56 int util_init(struct command_context *cmd_ctx)
  57 {
  58         return register_commands(cmd_ctx, NULL, util_command_handlers);
  59 }