Wireshark · Wireshark-dev: Re: [Wireshark-dev] Equivalency between APIs

[Juan Jose Martin Carrascosa <juanjo@xxxxxxx>]

Thanks for your reply. Regarding the last comment, just to double check since I am not very experienced on this... it would be like:

 channel_tree = proto_tree_add_subtree_format(rtps_parameter_tree, tvb, off, 0,

           ett_rtps_locator_filter_channel, NULL, "Channel[%u]", ch);

True?

- Juanjo

On Tue, Aug 26, 2014 at 5:19 PM, <mmann78@xxxxxxxxxxxx> wrote:

You are correct.  proto_tree_add_subtree is for no printf-style arguments, proto_tree_add_subtree_format is for when you need printf-style arguments for your subtree.

 

One thing to check (if you're compiler doesn't do it for you because somebody's will) is that you may no longer need the proto_item* passed into proto_tree_add_subtree[_format].

 

Many dissectors had

ti = proto_tree_add_text(....)

subtree = proto_item_add_subtree(ti, ett) 

 

and never referenced ti again.  So when that's converted to proto_tree_add_subtree, you can just pass NULL in for the proto_item* parameter.

 

 

 

 

-----Original Message-----
From: Juan Jose Martin Carrascosa <juanjo@xxxxxxx>
To: Developer support list for Wireshark <wireshark-dev@xxxxxxxxxxxxx>
Sent: Tue, Aug 26, 2014 9:43 am
Subject: [Wireshark-dev] Equivalency between APIs

Hi all, 

I need to remove the proto_tree_add_text calls, and I wanted to know if this is equivalent:

Before:

        ti_channel = proto_tree_add_text(rtps_parameter_tree, tvb, off, 0, "Channel[%u]", ch);

        channel_tree = proto_item_add_subtree(ti_channel, ett_rtps_locator_filter_channel);

Now:

        channel_tree = proto_tree_add_subtree_format(rtps_parameter_tree, tvb, off, 0,

           ett_rtps_locator_filter_channel, &ti_channel, "Channel[%u]", ch);

Thanks!

Juanjo

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