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From: Claudio Takahasi <cktakahasi@gmail.com>
To: bluez-devel@lists.sourceforge.net
Subject: Re: [Bluez-devel] hcid D-Bus patch
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Date: Wed, 21 Sep 2005 10:52:55 -0300

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Hi Paul,

An ERROR may have any arguments, but if the first argument is a
STRING(error message). Therefore, the signature should be sq
(string+uint16).
In my opinion the error message string is not relevant, the client
applications
can use it or not. If we consider internationalization, this string will no=
t
the useful.

Regards,
Claudio.

On 9/21/05, P. Durante <shackan@gmail.com> wrote:
>
> Hi,
>
> > org.bluez.hci.error.Failed /* here we can add the bluetooth error code
> */
>
> Just an idea, keep it simple, if you give the clients just the
> bluetooth error code they'll have to decode its meaning using
> something like strerror( bt_error( error_code )) every time they make
> a request, quite boring, even worse, bt_error is bluez-specific and if
> the client wants to use something like that in a language which is not
> C, they should grab the bluetooth specification write their own
> function which tells what each error code means...
>
> or
>
> since dbus errors consist of error_name + error_message you could put
> something meaningful in the error_message, and eventually append an
> additional field with the error code to the message as well ( if the
> application wants to treat some error codes in a particular way ) this
> seems ok with the dbus specification which only says (if I remember
> correctly) that if the first field in an error message is of type
> 'string' that string will be treated as the error message, and doesn't
> say anything about additional fields.
>
> regards
>
>
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Hi Paul,<br>
<br>
An ERROR may have any arguments, but if the first argument is a <br>
STRING(error message). Therefore, the signature should be sq (string+uint16=
).<br>
In my opinion the error message string is not relevant, the client applicat=
ions<br>
can use it or not. If we consider internationalization, this string will no=
t<br>
the useful.<br>
<br>
Regards,<br>
Claudio.<br><br><div><span class=3D"gmail_quote">On 9/21/05, <b class=3D"gm=
ail_sendername">P. Durante</b> &lt;<a href=3D"mailto:shackan@gmail.com">sha=
ckan@gmail.com</a>&gt; wrote:</span><blockquote class=3D"gmail_quote" style=
=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; p=
adding-left: 1ex;">
Hi,<br><br>&gt;&nbsp;&nbsp;org.bluez.hci.error.Failed&nbsp;&nbsp;/* here we=
 can add the bluetooth error code */<br><br>Just an idea, keep it simple, i=
f you give the clients just the<br>bluetooth error code they'll have to dec=
ode its meaning using
<br>something like strerror( bt_error( error_code )) every time they make<b=
r>a request, quite boring, even worse, bt_error is bluez-specific and if<br=
>the client wants to use something like that in a language which is not
<br>C, they should grab the bluetooth specification write their own<br>func=
tion which tells what each error code means...<br><br>or<br><br>since dbus =
errors consist of error_name + error_message you could put<br>something mea=
ningful in the error_message, and eventually append an
<br>additional field with the error code to the message as well ( if the<br=
>application wants to treat some error codes in a particular way ) this<br>=
seems ok with the dbus specification which only says (if I remember<br>
correctly) that if the first field in an error message is of type<br>'strin=
g' that string will be treated as the error message, and doesn't<br>say any=
thing about additional fields.<br><br>regards<br><br><br>------------------=
-------------------------------------
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