libelwix/src/ring.c - diff

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version 1.6, 2026/02/11 13:36:09	version 1.7, 2026/02/18 01:34:17
Line 138 rbuf_isempty(ringbuf_t *rbuf)	Line 138 rbuf_isempty(ringbuf_t *rbuf)
int	int
rbuf_isfull(ringbuf_t *rbuf)	rbuf_isfull(ringbuf_t *rbuf)
{	{
int h, t;

if (!rbuf)	if (!rbuf)
return -1;	return -1;
if (!rbuf->rb_bufnum)	if (!rbuf->rb_bufnum)
return 1;	return 1;

t = atomic_load_explicit((atomic_int*) &rbuf->rb_tail, memory_order_acquire);	return (((atomic_load_explicit((atomic_int*) &rbuf->rb_head, memory_order_relaxed) + 1) % rbuf->rb_bufnum) ==
h = atomic_load_explicit((atomic_int*) &rbuf->rb_head, memory_order_relaxed) + 1;	atomic_load_explicit((atomic_int*) &rbuf->rb_tail, memory_order_acquire));
if (h >= rbuf->rb_bufnum)
h ^= h;

return (h == t);
}	}

/*	/*