pub unsafe extern "C" fn ring_buffer__add(
rb: *mut ring_buffer,
map_fd: c_int,
sample_cb: ring_buffer_sample_fn,
ctx: *mut c_void,
) -> c_int
pub unsafe extern "C" fn ring_buffer__add(
rb: *mut ring_buffer,
map_fd: c_int,
sample_cb: ring_buffer_sample_fn,
ctx: *mut c_void,
) -> c_int