File: [local] / prex-old / usr / test / time / time.c (download)
Revision 1.1.1.1 (vendor branch), Tue Jun 3 09:38:52 2008 UTC (16 years, 3 months ago) by nbrk
Branch: MAIN, KOHSUKE
CVS Tags: PREX_0_7_BASE, HEAD Branch point for: PREX_0_8_BASE
Changes since 1.1: +0 -0 lines
Yeah, this is an initial import of Prex, portable real-time microkernel
operating system. I wanna hack it for non-profit but fun, so let it in.
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/*
* Copyright (c) 2005, Kohsuke Ohtani
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* time.c - test time function
*/
#include <prex/prex.h>
#include <stdio.h>
u_long
get_time(void)
{
device_t rtc_dev;
int err;
u_long sec;
size_t len;
err = device_open("rtc", 0, &rtc_dev);
if (err) {
printf("error to open rtc device!\n");
return 0;
}
len = sizeof(sec);
err = device_read(rtc_dev, &sec, &len, 0);
if (err) {
printf("error in reading from rtc device\n");
device_close(rtc_dev);
return 0;
}
device_close(rtc_dev);
return sec;
}
int
main(int argc, char *argv[])
{
u_long sys_time;
unsigned int sec, min, hour;
printf("Time test program\n");
sys_time = get_time();
if (sys_time == 0)
return 0;
sec = sys_time % 60;
min = (sys_time / 60) % 60;
hour = (sys_time / 60 / 60) % 24;
printf("Current time: %d:%d:%d\n", hour, min, sec);
return 0;
}