This is rtc, a kernel module for /dev/rtc device support.

Some apps such as VMware for Linux would be happy with it.

The code was originally written by Vladimir N. Silyaev.

Note: It _includes_ Linux ioctl support, but basically it's
FreeBSD native stuff.  I'm importing this into emulators
category for convevience' sake.   Check it out.

1 files changed, 56 insertions, 0 deletions

diff --git a/emulators/rtc/files/test.c b/emulators/rtc/files/test.c
new file mode 100644
index 000000000000..664441c20663
--- /dev/null
+++ b/emulators/rtc/files/test.c
@@ -0,0 +1,56 @@
+#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("/dec/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;
+}
+
+	
+
+