31 #define _IO_lock_init(_name) \  argument
32   ((void) ((_name) = (_IO_lock_t) _IO_lock_initializer))
34 #define _IO_lock_fini(_name) \  argument
37 #define _IO_lock_lock(_name) \  argument
40     if ((_name).owner != __self)					      \
42 	lll_lock ((_name).lock, LLL_PRIVATE);				      \
43         (_name).owner = __self;						      \
45     ++(_name).cnt;							      \
48 #define _IO_lock_trylock(_name) \  argument
52     if ((_name).owner != __self)					      \
54         if (lll_trylock ((_name).lock) == 0)				      \
56             (_name).owner = __self;					      \
57             (_name).cnt = 1;						      \
63       ++(_name).cnt;							      \
67 #define _IO_lock_unlock(_name) \  argument
69     if (--(_name).cnt == 0)						      \
71         (_name).owner = NULL;						      \
72 	lll_unlock ((_name).lock, LLL_PRIVATE);				      \