[PATCH wayland] util: Improve documentation of wl_argument

[Yong Bakos]

Disregard this one, v2 is en route.

yong

> On Nov 12, 2016, at 9:53 AM, Yong Bakos <junk at humanoriented.com> wrote:
> 
> From: Yong Bakos <ybakos at humanoriented.com>
> 
> Standardize the doxygen comment format, add clarity to the writing, decouple
> the description from specifics of usage, add see-also's, and massage the union
> member type comments.
> 
> Signed-off-by: Yong Bakos <ybakos at humanoriented.com>
> ---
> src/wayland-util.h | 29 ++++++++++++++++-------------
> 1 file changed, 16 insertions(+), 13 deletions(-)
> 
> diff --git a/src/wayland-util.h b/src/wayland-util.h
> index 4dba1ed..d8ac0d1 100644
> --- a/src/wayland-util.h
> +++ b/src/wayland-util.h
> @@ -552,22 +552,25 @@ wl_fixed_from_int(int i)
> }
> 
> /**
> - * \brief A union representing all of the basic data types that can be passed
> - * along the wayland wire format.
> + * Protocol message argument data types
>  *
> - * This union represents all of the basic data types that can be passed in the
> - * wayland wire format.  It is used by dispatchers and runtime-friendly
> - * versions of the event and request marshaling functions.
> + * This union represents all of the argument types in the Wayland protocol wire
> + * format. The protocol implementation uses wl_argument within its marshaling
> + * machinery for dispatching messages between a client and a compositor.
> + *
> + * \sa wl_message
> + * \sa wl_interface
> + * \sa <a href="https://wayland.freedesktop.org/docs/html/ch04.html#sect-Protocol-wire-Format">Wire Format</a>
>  */
> union wl_argument {
> -	int32_t i; /**< signed integer */
> -	uint32_t u; /**< unsigned integer */
> -	wl_fixed_t f; /**< fixed point */
> -	const char *s; /**< string */
> -	struct wl_object *o; /**< object */
> -	uint32_t n; /**< new_id */
> -	struct wl_array *a; /**< array */
> -	int32_t h; /**< file descriptor */
> +	int32_t i;           /**< Signed integer     */
> +	uint32_t u;          /**< Unsigned integer   */
> +	wl_fixed_t f;        /**< Fixed-point number */
> +	const char *s;       /**< String             */
> +	struct wl_object *o; /**< Object             */
> +	uint32_t n;          /**< New object id      */
> +	struct wl_array *a;  /**< Array              */
> +	int32_t h;           /**< File descriptor    */
> };
> 
> /**
> -- 
> 2.7.2
>