LOCK_NB          3409 file.c         # ifndef LOCK_NB
LOCK_NB          3489 file.c         	    if (op1 & LOCK_NB) return Qfalse;
LOCK_NB          4757 file.c             rb_file_const("LOCK_NB", INT2FIX(LOCK_NB));
LOCK_NB            15 missing/flock.c # ifndef LOCK_NB
LOCK_NB            31 missing/flock.c     switch (operation & ~LOCK_NB) {
LOCK_NB            48 missing/flock.c     return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &lock);
LOCK_NB            84 missing/flock.c # ifndef LOCK_NB
LOCK_NB           105 missing/flock.c       case LOCK_SH|LOCK_NB:
LOCK_NB           109 missing/flock.c       case LOCK_EX|LOCK_NB:
LOCK_NB           281 win32/win32.c        case LOCK_SH|LOCK_NB:	/* non-blocking shared lock */
LOCK_NB           284 win32/win32.c        case LOCK_EX|LOCK_NB:	/* non-blocking exclusive lock */
LOCK_NB           290 win32/win32.c        case LOCK_UN|LOCK_NB:	/* unlock is always non-blocking, I hope */
LOCK_NB           314 win32/win32.c        case LOCK_EX|LOCK_NB:
LOCK_NB           318 win32/win32.c        case LOCK_UN|LOCK_NB: