LOCKFILE
for (i=0; link(LOGFILE, LOCKFILE) == -1 && i<10; i++)
unlink(LOCKFILE);
if (rump_sys_stat(LOCKFILE, &st) != 0)
int f = rump_sys_open(LOCKFILE, O_WRONLY|O_CREAT|O_TRUNC, 0666);
if (rump_sys_stat(LOCKFILE, &st) != 0)
int f = rump_sys_open(LOCKFILE, O_WRONLY|O_CREAT, 0666);