Function sgx_libc::ocall::u_preadv64_ocall

pub unsafe extern "C" fn u_preadv64_ocall(
    result: *mut ssize_t, 
    errno: *mut c_int, 
    fd: c_int, 
    iov: *const iovec, 
    iovcnt: c_int, 
    offset: off64_t
) -> sgx_status_t