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freebsd-ports/emulators/rtc/files/test.c
Kurt Jaeger 75ce806e1e emulators/rtc: update 2004.02.24.1 -> 2020.07.07.1
- submitter becomes maintainer
- Install kmod into /boot/modules instead of /usr/local
- Cleared out bits dating back to pre-devfs
- Removed #ifdef bits related to FreeBSD <= 4.X and FreeBSD <= 8.X
- Olegs fixes for FreeBSD 11.X and FreeBSD 12.X+
- Removed "USES= linux uidfix" - whilst this provides functionality
  that is "often" used by linux programs, that's not necessarily the
  case, and this module doesn't require any linux subsystem or
  kernel MOD to operate.
- Removed oldstyle rtc.sh - include pkg-message showing how to load
  from the rc.conf "kld_list" mechanism.
- Fixed typo in "test.c" -> /dec -> /dev
- Fixed path to "rtc.h" in "test.c"

PR:		233057
Submitted by:	Jamie Landeg-Jones <jamie@catflap.org>
2020-09-01 09:04:32 +00:00

57 lines
902 B
C

#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioccom.h>
#include <rtc.h>
int main(void)
{
int rtc;
fd_set rset;
int i,rc;
int ntests=100;
struct timeval tv;
struct timeval begin,end,delta;
rtc = open("/dev/rtc", O_RDONLY);
if (rtc<0) {
perror("/dev/rtc");
return 1;
}
rc = ioctl(rtc, RTCIO_IRQP_SET, 512);
if (rc<0) {
perror("/dev/rtc");
return 1;
}
rc = ioctl(rtc, RTCIO_PIE_ON, NULL);
if (rc<0) {
perror("/dev/rtc");
return 1;
}
gettimeofday(&begin, NULL);
for (i=0; i<ntests; i++) {
FD_ZERO(&rset);
FD_SET(rtc, &rset);
tv.tv_sec=0;
tv.tv_usec=10000;
rc=select(rtc+1, &rset, NULL, NULL, &tv);
}
gettimeofday(&end, NULL);
timersub(&end, &begin, &delta);
printf("time %ld msec per test\n", (delta.tv_sec*1000+delta.tv_usec/1000)/ntests);
return 0;
}