From: Chen Ganir <chen.ganir@xxxxxx>
Add property changed callback mechanism for internal use between
different bluez modules. This mechanism will allow any module
holding a btd_device pointer, to register for proerty changed
events, similar to the D-BUS PropertyChanged signal.
---
src/device.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
src/device.h | 5 +++++
2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/src/device.c b/src/device.c
index eab7e4c..45ce62e 100644
--- a/src/device.c
+++ b/src/device.c
@@ -125,6 +125,11 @@ struct att_callbacks {
gpointer user_data;
};
+struct prop_changed_cb {
+ guint id;
+ dev_property_changed_cb cb;
+};
+
struct btd_device {
bdaddr_t bdaddr;
addr_type_t type;
@@ -169,6 +174,8 @@ struct btd_device {
GIOChannel *att_io;
guint cleanup_id;
+
+ GSList *cb_list;
};
static uint16_t uuid_list[] = {
@@ -259,6 +266,7 @@ static void device_free(gpointer user_data)
g_slist_free_full(device->primaries, g_free);
g_slist_free_full(device->attios, g_free);
g_slist_free_full(device->attios_offline, g_free);
+ g_slist_free_full(device->cb_list,g_free);
att_cleanup(device);
@@ -2992,3 +3000,41 @@ gboolean btd_device_remove_attio_callback(struct btd_device *device, guint id)
return TRUE;
}
+
+static int prop_changed_cb_cmp(gconstpointer a, gconstpointer b)
+{
+ const struct prop_changed_cb *cb = a;
+ guint id = GPOINTER_TO_UINT(b);
+
+ return cb->id - id;
+}
+
+guint btd_device_add_prop_changed_cb(struct btd_device *device, dev_property_changed_cb cbfunc)
+{
+ struct prop_changed_cb *cb;
+ static guint cb_id = 0;
+
+ DBG("%p registered device propery changed callback", device);
+
+ cb = g_new0(struct prop_changed_cb, 1);
+ cb->id = ++cb_id;
+ cb->cb = cbfunc;
+
+ device->cb_list = g_slist_append(device->cb_list, cb);
+
+ return cb->id;
+}
+
+void btd_device_remove_prop_changed_cb(struct btd_device *device, guint id)
+{
+ struct prop_changed_cb *cb;
+ GSList *l;
+
+ l = g_slist_find_custom(device->cb_list, GUINT_TO_POINTER(id),
+ prop_changed_cb_cmp);
+ if (l) {
+ cb = l->data;
+ device->cb_list = g_slist_remove(device->cb_list, cb);
+ g_free(cb);
+ }
+}
diff --git a/src/device.h b/src/device.h
index 7cb9bb2..ba9ed32 100644
--- a/src/device.h
+++ b/src/device.h
@@ -26,6 +26,8 @@
struct btd_device;
+typedef void (*dev_property_changed_cb)(uint16_t property, uint8_t *value, uint16_t len);
+
typedef enum {
AUTH_TYPE_PINCODE,
AUTH_TYPE_PASSKEY,
@@ -120,3 +122,6 @@ int device_block(DBusConnection *conn, struct btd_device *device,
gboolean update_only);
int device_unblock(DBusConnection *conn, struct btd_device *device,
gboolean silent, gboolean update_only);
+guint btd_device_add_prop_changed_cb(struct btd_device *device,
+ dev_property_changed_cb cb);
+void btd_device_remove_prop_changed_cb(struct btd_device *device, guint id);
--
1.7.4.1
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