message error?

[Alex Bunnett]

Hi guys really in a pickle at the moment.
Trying to get dbus running on our arm9 platform and having problems creating a message. I have it all working the other day im sure but can no longer create/read a message sent across the bus.

This is the code im just trying to create and read a message with. Any help would be huge as im currently pulling out my hair and there is little to no help on the internet.

Thanks


    DBusMessage*                      message;
    dbus_uint32_t                        serial; // TODO What is this?

    int ret = dbus_bus_request_name(_connection, CLIENT_SEND_NAME, DBUS_NAME_FLAG_REPLACE_EXISTING , &_error);

    dbus_connection_flush(_connection);

    if (dbus_error_is_set(&_error)) {
              __ALEX("Name Error (%s)", _error.message);
              dbus_error_free(&_error);
    }

    if (DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER != ret)
    {
               if(ret != DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER)
               {
                           __ALEX("Couldn't add signal source %i", ret);
                           __EXCEPT(EXCEPTION_APPLICATION);
               }
    }

    message = dbus_message_new_method_call(CLIENT_SEND_NAME, CLIENT_SEND_OBJECT, SEND_INTERFACE_SERVER, "servermessage");

    if(message == NULL)
    {
                        __ALEX("Message NULL cant send");
                        return 0;
    }

    DBusMessageIter iter, sub;

 /*   if(!dbus_message_iter_init(message, &iter))
    {
                        __ALEX("Couldnt set up iter");
                        dbus_message_unref(message);
                        return 0;
    }*/

    dbus_message_iter_init_append(message, &iter);

    char buf[2];

    buf[0] = DBUS_TYPE_BYTE;
    buf[1] = '\0';

    dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, buf, &sub);

    __ALEX("address 0x%X",(int)&pBuff);
    __ALEX("address1 0x%X",(int)pBuff);

    if(!dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &pBuff, len))
    {
            __ALEX("couldnt append message");
                        dbus_message_unref(message);
            return 0;
    }
    dbus_message_iter_close_container(&iter, &sub);

    if(!dbus_connection_send(_connection, message, &serial))
    {
                        __ALEX("Couldn't Send message");
                        dbus_message_unref(message);
                        return 0;
    }

    dbus_connection_flush(_connection); // force message to be sent now
    //dbus_message_unref(message);
    //return len;

            DBusMessageIter args1, subiter;

            if (!dbus_message_iter_init(message, &args1))
            {
                        dbus_message_unref(message);

                        __ALEX("Couldnt get int")
            }

            if ( dbus_message_iter_get_arg_type(&args1) == DBUS_TYPE_ARRAY)
            {
                        int maxlen = 100;
                        uint8_t pBuff1[100];

                        dbus_message_iter_recurse (&args1, &subiter);

                        __ALEX("%i",dbus_message_iter_get_arg_type(&subiter));

                        dbus_message_iter_get_fixed_array(&subiter, &pBuff1, &maxlen);

                        __ALEX("TYPE ARRAY");

                        for(int i = 0; i < maxlen; i++)
                        {
                                    __ALEX("Sending [%i] -> 0x%02x  instead 0x%02x",i, pBuff1[i], pBuff[i])  // these are not matching!!
                        }

            }

    dbus_message_unref(message);
    return len;



[cid:image001.jpg at 01CA05FB.486CA3D0]<http://www.fusioncaraudio.com/>





Alex Bunnett
Embedded Software Engineer
Ph: +64-9-369-2900
DDI: +64-9-369-2940
Fax: +64-9-369-2907
Email: alexb at fusionelectronics.co.nz<mailto:alexb at fusionelectronics.co.nz>
Website: http://www.fusionelectronics.com

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