Function membarrier_query

src/backend/linux_raw/thread/syscalls.rs:521–532

()

#[inline]
pub(crate) fn membarrier_query() -> MembarrierQuery {
    unsafe {
        match ret_c_uint(syscall!(
            __NR_membarrier,
            c_int(membarrier_cmd::MEMBARRIER_CMD_QUERY as _),
            c_uint(0)
        )) {
            Ok(query) => MembarrierQuery::from_bits_retain(query),
            Err(_) => MembarrierQuery::empty(),
        }
    }
}

#[inline]
pub(crate) fn membarrier(cmd: MembarrierCommand) -> io::Result<()> {