Function sgx_urts::fd::u_pwritev64_ocall

#[no_mangle]pub extern "C" fn u_pwritev64_ocall(
    error: *mut c_int, 
    fd: c_int, 
    iov: *const iovec, 
    iovcnt: c_int, 
    offset: off64_t
) -> ssize_t