LOCK_NB
if (flock(fileno(sync_fp), LOCK_EX|LOCK_NB) >= 0)
if (flock(fileno(mp->keyfile), LOCK_EX | LOCK_NB) != 0)
if (how & LOCK_NB)
if (flock(fileno(in), LOCK_EX|LOCK_NB) == -1)
if (flock(lockfd, LOCK_EX|LOCK_NB) == -1) {
return (flock(fd, LOCK_EX | LOCK_NB) ?
if (flock(fileno(pidfp), LOCK_EX|LOCK_NB) == 0)
if (flock(bt->fd, LOCK_EX | LOCK_NB) != 0) {
if (!get_line(fp) || flock(fileno(fp), LOCK_SH|LOCK_NB) == 0) {
if (fd < 0 || flock(fd, LOCK_SH|LOCK_NB) == 0) {
lflags = LOCK_NB;
lflags &= ~LOCK_NB;
if (!isatty(fileno(fp)) && flock(fileno(fp), LOCK_SH|LOCK_NB) == -1) {
if (flock(masterfd, LOCK_EX | LOCK_NB) == -1) {
if (flock(fileno(from), LOCK_EX | LOCK_NB) == -1) {
if (flock(masterfd, LOCK_EX | LOCK_NB) == -1) {
if (flock(fileno(from), LOCK_EX | LOCK_NB) == -1) {
if (flock(fileno(from), LOCK_EX | LOCK_NB) == -1) {
if (flock(fileno(from), LOCK_EX | LOCK_NB) == -1) {