minix/commands/simple/update.c
2009-11-09 10:26:00 +00:00

24 lines
418 B
C

/* update - do sync periodically Author: Andy Tanenbaum */
#include <sys/types.h>
#include <signal.h>
#include <unistd.h>
_PROTOTYPE(int main, (void));
int main()
{
/* Release all (?) open file descriptors. */
close(0);
close(1);
close(2);
/* Release current directory to avoid locking current device. */
chdir("/");
/* Flush the cache every 30 seconds. */
while (1) {
sync();
sleep(30);
}
}