Function uikit_sys::mach_msg

pub unsafe extern "C" fn mach_msg(
    msg: *mut mach_msg_header_t, 
    option: mach_msg_option_t, 
    send_size: mach_msg_size_t, 
    rcv_size: mach_msg_size_t, 
    rcv_name: mach_port_name_t, 
    timeout: mach_msg_timeout_t, 
    notify: mach_port_name_t
) -> mach_msg_return_t