Re: [PATCH v2 1/5] android/gatt: Refactor send_client_connect_notify

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Hi Łukasz,

On Thursday 10 of April 2014 17:30:01 Lukasz Rymanowski wrote:
> Create helper function to send connect notification, similar to the
> send_client_disconnect_notify
> ---
>  android/gatt.c | 55 ++++++++++++++++++++++++++++++++++---------------------
>  1 file changed, 34 insertions(+), 21 deletions(-)
> 
> diff --git a/android/gatt.c b/android/gatt.c
> index a33ce25..80fa139 100644
> --- a/android/gatt.c
> +++ b/android/gatt.c
> @@ -480,6 +480,24 @@ failed:
>  					HAL_OP_GATT_CLIENT_REGISTER, status);
>  }
>  
> +static void send_client_connect_notify(int32_t id, struct gatt_device *dev,
> +								int32_t status)
> +{
> +	struct hal_ev_gatt_client_connect ev;
> +
> +	ev.client_if = id;
> +	ev.status = status;
> +
> +	if (status == GATT_SUCCESS) {
> +		/* Set address and client id in the event */
> +		bdaddr2android(&dev->bdaddr, &ev.bda);
> +		ev.conn_id = dev->conn_id;
> +	}

This will send garbage if status != GATT_SUCCESS.

> +
> +	ipc_send_notif(hal_ipc, HAL_SERVICE_ID_GATT,
> +				HAL_EV_GATT_CLIENT_CONNECT, sizeof(ev), &ev);
> +}
> +
>  static void handle_client_unregister(const void *buf, uint16_t len)
>  {
>  	const struct hal_cmd_gatt_client_unregister *cmd = buf;
> @@ -785,25 +803,26 @@ done:
>  	return FALSE;
>  }
>  
> -static void send_client_connect_notify(void *data, void *user_data)
> +struct connect_data {
> +	struct gatt_device *dev;
> +	int32_t status;
> +};
> +
> +static void send_client_connect_notifications(void *data, void *user_data)
>  {
> -	struct hal_ev_gatt_client_connect *ev = user_data;
>  	int32_t id = PTR_TO_INT(data);
> +	struct connect_data *c = user_data;
>  
> -	ev->client_if = id;
> -
> -	ipc_send_notif(hal_ipc, HAL_SERVICE_ID_GATT,
> -				HAL_EV_GATT_CLIENT_CONNECT, sizeof(*ev), ev);
> +	send_client_connect_notify(id, c->dev, c->status);
>  }
>  
>  static void connect_cb(GIOChannel *io, GError *gerr, gpointer user_data)
>  {
>  	bdaddr_t *addr = user_data;
>  	struct gatt_device *dev;
> -	struct hal_ev_gatt_client_connect ev;
> +	struct connect_data data;
>  	GAttrib *attrib;
>  	static uint32_t conn_id = 0;
> -	int32_t status;
>  
>  	/* Take device from conn waiting queue */
>  	dev = queue_remove_if(conn_wait_queue, match_dev_by_bdaddr, addr);
> @@ -816,19 +835,16 @@ static void connect_cb(GIOChannel *io, GError *gerr, gpointer user_data)
>  	g_io_channel_unref(dev->att_io);
>  	dev->att_io = NULL;
>  
> -	/* Set address and client id in the event */
> -	bdaddr2android(&dev->bdaddr, &ev.bda);
> -
>  	if (gerr) {
>  		error("gatt: connection failed %s", gerr->message);
> -		status = GATT_FAILURE;
> +		data.status = GATT_FAILURE;
>  		goto reply;
>  	}
>  
>  	attrib = g_attrib_new(io);
>  	if (!attrib) {
>  		error("gatt: unable to create new GAttrib instance");
> -		status = GATT_FAILURE;
> +		data.status = GATT_FAILURE;
>  		goto reply;
>  	}
>  
> @@ -841,21 +857,18 @@ static void connect_cb(GIOChannel *io, GError *gerr, gpointer user_data)
>  	if (!queue_push_tail(conn_list, dev)) {
>  		error("gatt: Cannot push dev on conn_list");
>  		connection_cleanup(dev);
> -		status = GATT_FAILURE;
> +		data.status = GATT_FAILURE;
>  		goto reply;
>  	}
>  
> -	status = GATT_SUCCESS;
> -	goto reply;
> +	data.status = GATT_SUCCESS;
>  
>  reply:
> -	ev.conn_id = dev ? dev->conn_id : 0;
> -	ev.status = status;
> -
> -	queue_foreach(dev->clients, send_client_connect_notify, &ev);
> +	data.dev = dev;
> +	queue_foreach(dev->clients, send_client_connect_notifications, &data);
>  
>  	/* If connection did not succeed, destroy device */
> -	if (status)
> +	if (data.status)
>  		destroy_device(dev);
>  
>  	/* Check if we should restart scan */
> 

-- 
Best regards, 
Szymon Janc
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