usr/test/time/time.c

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This source file includes following definitions.
get_time
main
   1 /*
   2  * Copyright (c) 2005, Kohsuke Ohtani
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29 
  30 /*
  31  * time.c - test time function
  32  */
  33 
  34 #include <sys/prex.h>
  35 #include <stdio.h>
  36 
  37 u_long
  38 get_time(void)
  39 {
  40         device_t rtc_dev;
  41         int error;
  42         u_long sec;
  43         size_t len;
  44 
  45         error = device_open("rtc", 0, &rtc_dev);
  46         if (error) {
  47                 printf("error to open rtc device!\n");
  48                 return 0;
  49         }
  50         len = sizeof(sec);
  51         error = device_read(rtc_dev, &sec, &len, 0);
  52         if (error) {
  53                 printf("error in reading from rtc device\n");
  54                 device_close(rtc_dev);
  55                 return 0;
  56         }
  57         device_close(rtc_dev);
  58         return sec;
  59 }
  60 
  61 int
  62 main(int argc, char *argv[])
  63 {
  64         u_long sys_time;
  65         u_long sec, min, hour;
  66 
  67         printf("Time test program\n");
  68 
  69         sys_time = get_time();
  70         if (sys_time == 0)
  71                 return 0;
  72 
  73         sec = sys_time % 60;
  74         min = (sys_time / 60) % 60;
  75         hour = (sys_time / 60 / 60) % 24;
  76         printf("Current time: %lu:%lu:%lu\n", hour, min, sec);
  77 
  78         return 0;
  79 }
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root/usr/test/time/time.c

DEFINITIONS
