Re: [PATCH 1/2] Report local services(UUIDs) through DBus

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Hi Alecrim,

* Francisco Alecrim <francisco.alecrim@xxxxxxxxxxxxx> [2010-04-06 18:05:19 -0400]:

> * Include UUIDs field to method GetProperties(org.bluez.Adapter).
> Applications can get local services(UUIDs) available through DBus.
> * UUIDs per-adapter stored at btd_adapter to prevent some searches not
> necessary regarding it requires information from access_db and service_db.
> * Emit Adapter.PropertyChanged signal when UUIDs change.
> ---
>  doc/adapter-api.txt |    5 +++
>  src/adapter.c       |   88 ++++++++++++++++++++++++++++++++++++++++++++++++++-
>  src/adapter.h       |    2 +
>  src/sdpd-database.c |    4 ++
>  test/list-devices   |    3 ++
>  5 files changed, 101 insertions(+), 1 deletions(-)
> 
> diff --git a/doc/adapter-api.txt b/doc/adapter-api.txt
> index 48cab40..6098c76 100644
> --- a/doc/adapter-api.txt
> +++ b/doc/adapter-api.txt
> @@ -270,3 +270,8 @@ Properties	string Address [readonly]
>  		array{object} Devices [readonly]
>  
>  			List of device object paths.
> +
> +		array{string} UUIDs [readonly]
> +
> +			List of 128-bit UUIDs that represents the available
> +			local services.
> diff --git a/src/adapter.c b/src/adapter.c
> index 5fd0736..47cef90 100644
> --- a/src/adapter.c
> +++ b/src/adapter.c
> @@ -37,6 +37,7 @@
>  #include <bluetooth/hci.h>
>  #include <bluetooth/hci_lib.h>
>  #include <bluetooth/sdp.h>
> +#include <bluetooth/sdp_lib.h>
>  
>  #include <glib.h>
>  #include <dbus/dbus.h>
> @@ -115,6 +116,7 @@ struct btd_adapter {
>  	GSList *mode_sessions;		/* Request Mode sessions */
>  	GSList *disc_sessions;		/* Discovery sessions */
>  	guint scheduler_id;		/* Scheduler handle */
> +	sdp_list_t *services;		/* Services associated to adapter */
>  
>  	struct hci_dev dev;		/* hci info */
>  	int8_t tx_power;		/* inq response tx power level */
> @@ -1033,6 +1035,75 @@ static void adapter_update_devices(struct btd_adapter *adapter)
>  	g_free(devices);
>  }
>  
> +static void adapter_emit_uuids_updated(struct btd_adapter *adapter)
> +{
> +	char **uuids;
> +	int i;
> +	sdp_list_t *list;
> +
> +	uuids = g_new0(char *, sdp_list_len(adapter->services) + 1);
> +
> +	for (i = 0, list = adapter->services; list; list = list->next, i++) {
> +		sdp_record_t *rec = list->data;
> +		uuids[i] = bt_uuid2string(&rec->svclass);
> +	}
> +
> +	emit_array_property_changed(connection, adapter->path,
> +			ADAPTER_INTERFACE, "UUIDs",
> +			DBUS_TYPE_STRING, &uuids);
> +
> +	for (i = 0; uuids[i]; i++)
> +		g_free(uuids[i]);
> +	g_free(uuids);
> +}
> +
> +/*
> + * adapter_services_inc_rem - Insert or remove UUID from adapter
> + */
> +static void adapter_service_ins_rem(const bdaddr_t *bdaddr, void *rec,
> +		gboolean insert)
> +{
> +	struct btd_adapter *adapter;
> +	GSList *adapters;
> +
> +	adapters = NULL;
> +
> +	if (bacmp(bdaddr, BDADDR_ANY) != 0) {
> +		/* Only one adapter */
> +		adapter = manager_find_adapter(bdaddr);
> +		if (!adapter)
> +			return;
> +
> +		adapters = g_slist_append(adapters, adapter);
> +	} else {
> +		/* Emit D-Bus msg to all adapters */
> +		adapters = manager_get_adapters();
> +	}

No need for braces here. :)

> +
> +	for (; adapters; adapters = adapters->next) {
> +		adapter = adapters->data;
> +
> +		if (insert == TRUE)
> +			adapter->services = sdp_list_append(adapter->services, rec);
> +		else
> +			adapter->services = sdp_list_remove(adapter->services, rec);
> +
> +		adapter_emit_uuids_updated(adapter);
> +	}
> +}
> +
> +void adapter_service_insert(const bdaddr_t *bdaddr, void *rec)
> +{
> +	/* TRUE to include service*/
> +	adapter_service_ins_rem(bdaddr, rec, TRUE);
> +}
> +
> +void adapter_service_remove(const bdaddr_t *bdaddr, void *rec)
> +{
> +	/* FALSE to remove service*/
> +	adapter_service_ins_rem(bdaddr, rec, FALSE);
> +}
> +
>  struct btd_device *adapter_create_device(DBusConnection *conn,
>  						struct btd_adapter *adapter,
>  						const char *address)
> @@ -1196,9 +1267,10 @@ static DBusMessage *get_properties(DBusConnection *conn,
>  	DBusMessageIter dict;
>  	char str[MAX_NAME_LENGTH + 1], srcaddr[18];
>  	gboolean value;
> -	char **devices;
> +	char **devices, **uuids;
>  	int i;
>  	GSList *l;
> +	sdp_list_t *list;
>  
>  	ba2str(&adapter->bdaddr, srcaddr);
>  
> @@ -1270,6 +1342,20 @@ static DBusMessage *get_properties(DBusConnection *conn,
>  								&devices, i);
>  	g_free(devices);
>  
> +	/* UUIDs */
> +	uuids = g_new0(char *, sdp_list_len(adapter->services) + 1);
> +
> +	for (i = 0, list = adapter->services; list; list = list->next, i++) {
> +		sdp_record_t *rec = list->data;
> +		uuids[i] = bt_uuid2string(&rec->svclass);
> +	}
> +
> +	dict_append_array(&dict, "UUIDs", DBUS_TYPE_STRING, &uuids, i);
> +
> +	for (i = 0; uuids[i]; i++)
> +		g_free(uuids[i]);
> +	g_free(uuids);
> +
>  	dbus_message_iter_close_container(&iter, &dict);
>  
>  	return reply;
> diff --git a/src/adapter.h b/src/adapter.h
> index 9b4ce10..e4307d8 100644
> --- a/src/adapter.h
> +++ b/src/adapter.h
> @@ -121,6 +121,8 @@ void adapter_mode_changed(struct btd_adapter *adapter, uint8_t scan_mode);
>  void adapter_setname_complete(bdaddr_t *local, uint8_t status);
>  void adapter_update_tx_power(bdaddr_t *bdaddr, uint8_t status, void *ptr);
>  void adapter_update_local_name(bdaddr_t *bdaddr, uint8_t status, void *ptr);
> +void adapter_service_insert(const bdaddr_t *bdaddr, void *rec);
> +void adapter_service_remove(const bdaddr_t *bdaddr, void *rec);
>  void adapter_set_class_complete(bdaddr_t *bdaddr, uint8_t status);
>  
>  struct agent *adapter_get_agent(struct btd_adapter *adapter);
> diff --git a/src/sdpd-database.c b/src/sdpd-database.c
> index 07a0bc3..224a4e7 100644
> --- a/src/sdpd-database.c
> +++ b/src/sdpd-database.c
> @@ -40,6 +40,7 @@
>  
>  #include "sdpd.h"
>  #include "logging.h"
> +#include "adapter.h"
>  
>  static sdp_list_t *service_db;
>  static sdp_list_t *access_db;
> @@ -183,6 +184,8 @@ void sdp_record_add(const bdaddr_t *device, sdp_record_t *rec)
>  	dev->handle = rec->handle;
>  
>  	access_db = sdp_list_insert_sorted(access_db, dev, access_sort);
> +
> +	adapter_service_insert(device, rec);
>  }
>  
>  static sdp_list_t *record_locate(uint32_t handle)
> @@ -252,6 +255,7 @@ int sdp_record_remove(uint32_t handle)
>  	if (p) {
>  		a = (sdp_access_t *) p->data;
>  		if (a) {
> +			adapter_service_remove(&a->device, r);
>  			access_db = sdp_list_remove(access_db, a);
>  			access_free(a);
>  		}
> diff --git a/test/list-devices b/test/list-devices
> index 511d0cf..9120714 100755
> --- a/test/list-devices
> +++ b/test/list-devices
> @@ -40,6 +40,9 @@ for i in adapter_list:
>  		if (key == "Devices"):
>  			list = extract_objects(value)
>  			print "    %s = %s" % (key, list)
> +		elif (key == "UUIDs"):
> +			list = extract_uuids(value)
> +			print "    %s = %s" % (key, list)
>  		else:
>  			print "    %s = %s" % (key, value)
>  
> -- 
> 1.6.3.3
> 
> --
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-- 
Gustavo F. Padovan
http://padovan.org
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