add Connected to GAPDevice interface

Author: acouvreur

gap.go

@@ -134,6 +134,7 @@ type Connection uint16
 type GAPDevice interface {
 	DiscoverServices(uuids []UUID) ([]DeviceService, error)
 	RequestConnectionParams(params ConnectionParams) error
+	Connected() (bool, error)
 	Disconnect() error
 }
 

gap_hci.go

@@ -296,6 +296,10 @@ func (d Device) Disconnect() error {
 	return nil
 }
 
+func (d Device) Connected() (bool, error) {
+	return false, errNotYetImplmented
+}
+
 // RequestConnectionParams requests a different connection latency and timeout
 // of the given device connection. Fields that are unset will be left alone.
 // Whether or not the device will actually honor this, depends on the device and

gap_nrf51.go

@@ -125,4 +125,8 @@ func (d Device) RequestConnectionParams(params ConnectionParams) error {
 	return errNotYetImplmented
 }
 
+func (d Device) Connected() (bool, error) {
+	return false, errNotYetImplmented
+}
+
 type DeviceService struct{}

gap_nrf528xx-central.go

@@ -237,3 +237,7 @@ func (d Device) RequestConnectionParams(params ConnectionParams) error {
 	errCode := C.sd_ble_gap_conn_param_update(d.connectionHandle, &connParams)
 	return makeError(errCode)
 }
+
+func (d Device) Connected() (bool, error) {
+	return false, errNotYetImplmented
+}

gap_s113v7.go

@@ -25,4 +25,8 @@ func (d Device) RequestConnectionParams(params ConnectionParams) error {
 	return errNotYetImplmented
 }
 
+func (d Device) Connected() (bool, error) {
+	return false, errNotYetImplmented
+}
+
 type DeviceService struct{}