I have added a CC to edevel in case someone else has this question in the
future.
On Sun, 26 Dec 2010 02:02:30 +0000
Rui Miguel Silva Seabra <r...@1407.org> wrote:
> How do I pass data to Azy_Content_Cb functions?
>
> Azy defines blank as...
>
> EAPI Azy_Client_Call_Id azy_client_blank(Azy_Client *client,
> Azy_Net_Type type,
> const char *uri,
> Azy_Content_Cb cb,
> void *data);
>
> And...
>
> typedef void *(*Azy_Content_Cb)(Azy_Value *, void **);
>
>
> This is how I use it...
>
> id = azy_client_blank(cli, AZY_NET_TYPE_GET, NULL,
> (Azy_Content_Cb)azy_value_to_Array_statusnet_Status, &data);
>
> And in my function...
>
> Eina_Bool azy_value_to_Array_statusnet_Status(Azy_Value *array, void*
> *data) {
> }
This is wrong. The way that the generated conversion functions (such as the
above) work is as follows:
Azy_Value struct is param #1
Pointer to conversion type struct pointer is param #2 (in this case
&(statusnet_Status*))
If successful, function will return EINA_TRUE, and the statusnet_Status* object
can be used since conversion was successful. If the function returns
EINA_FALSE for any reason, the object will be NULL and an error must be
presented.
>
> Data is *not* what I sent in _blank() :|
>
> Rui
Data should not be passed to conversion functions, as they are autogenerated
and exist SOLELY for the purpose of converting. If you read through
azy_client_events.c a little, you will see that conversion functions, if
specified, are called just prior to the main client event/callback is handled
(callback taking priority over event if existing).
User data passed in azy_client_blank is handled like user data passed to
generated rpc functions: you must call azy_content_data_get on the content
presented in the event/callback to retrieve it.
--
Mike Blumenkrantz
Zentific: We run the three-legged race individually.
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