cc'ing Dave Benson, who maintains the only C port I'm aware of.

On Tue, Nov 25, 2008 at 8:54 AM, <[EMAIL PROTECTED]> wrote:

>
> Hi,
>
> I'm using the protocol buffers package for c. It's very useful and
> handy. However I've encountered a problem when trying to use a message
> with a nested repeated field of an other message type.
>
> This is the simplified version -
> message Item {
>        int32 id = 1;
> }
>
> message LookupReply {
>        repeated Item replica_list = 1;
> }
>
> Here is the code for constructing the message:
> ...
>    LookupReply nlr = LOOKUP_REPLY__INIT;
>
>    (&nlr)->replica_list = (Item**)malloc(1*sizeof(Item*));
>    (&nlr)->n_replica_list = 1;
>
>    Item* item1 = (Item*)malloc(sizeof(Item));
>    item1->id = 1;
>    (&nlr)->replica_list[0] = item1;
>
>    int len = lookup_reply__get_packed_size(nlr);
> ...
>
> The call to lookup_reply__get_packed_size causes a segmentation
> fault.
> I first tried using a string id field in the Item message, and that
> failed too.
>
> However when I used a string repeated field (with a few obvious
> semantic changes) everything worked fine.
>
> Anyone else has maybe used repeated message field in the c package and
> got it to work (or if not, can explain why it doesn't work)?
>
> Thank you,
> Aviad
> >
>

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