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Side by Side Diff: device/bluetooth/bluetooth_gatt_service.h

Issue 264053004: device/bluetooth: Improvements to GATT descriptor access API. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Pull & rebase. Created 6 years, 7 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_H_ 5 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_H_
6 #define DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_H_ 6 #define DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_H_
7 7
8 #include <vector> 8 #include <vector>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
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166 // service |service| has been removed. This method is for convenience 166 // service |service| has been removed. This method is for convenience
167 // and will be followed by a call to GattServiceChanged (except when called 167 // and will be followed by a call to GattServiceChanged (except when called
168 // after the service gets removed) which should be used for bootstrapping a 168 // after the service gets removed) which should be used for bootstrapping a
169 // GATT based profile. See the documentation of GattCharacteristicAdded and 169 // GATT based profile. See the documentation of GattCharacteristicAdded and
170 // GattServiceChanged for more information. Try to obtain the service from 170 // GattServiceChanged for more information. Try to obtain the service from
171 // its device to see whether or not the service has been removed. 171 // its device to see whether or not the service has been removed.
172 virtual void GattCharacteristicRemoved( 172 virtual void GattCharacteristicRemoved(
173 BluetoothGattService* service, 173 BluetoothGattService* service,
174 BluetoothGattCharacteristic* characteristic) {} 174 BluetoothGattCharacteristic* characteristic) {}
175 175
176 // Called when the remote GATT characteristic descriptor |descriptor|
177 // belonging to characteristic |characteristic| has been discovered. Don't
178 // cache the arguments as the pointers may become invalid. Instead, use the
179 // specially assigned identifier to obtain a descriptor and cache that
180 // identifier as necessary.
181 //
182 // This method will always be followed by a call to GattServiceChanged,
183 // which can be used by observers to get all the characteristics of a
184 // service and perform the necessary updates. GattDescriptorAdded exists
185 // mostly for convenience.
186 virtual void GattDescriptorAdded(
187 BluetoothGattCharacteristic* characteristic,
188 BluetoothGattDescriptor* descriptor) {}
189
190 // Called when a GATT characteristic descriptor |descriptor| belonging to
191 // characteristic |characteristic| has been removed. This method is for
192 // convenience and will be followed by a call to GattServiceChanged (except
193 // when called after the service gets removed).
194 virtual void GattDescriptorRemoved(
195 BluetoothGattCharacteristic* characteristic,
196 BluetoothGattDescriptor* descriptor) {}
197
176 // Called when the value of a characteristic has changed. This might be a 198 // Called when the value of a characteristic has changed. This might be a
177 // result of a read/write request to, or a notification/indication from, a 199 // result of a read/write request to, or a notification/indication from, a
178 // remote GATT characteristic. 200 // remote GATT characteristic.
179 virtual void GattCharacteristicValueChanged( 201 virtual void GattCharacteristicValueChanged(
180 BluetoothGattService* service, 202 BluetoothGattService* service,
181 BluetoothGattCharacteristic* characteristic, 203 BluetoothGattCharacteristic* characteristic,
182 const std::vector<uint8>& value) {} 204 const std::vector<uint8>& value) {}
205
206 // Called when the value of a characteristic descriptor has been updated.
207 virtual void GattDescriptorValueChanged(
208 BluetoothGattCharacteristic* characteristic,
209 BluetoothGattDescriptor* descriptor,
210 const std::vector<uint8>& value) {}
183 }; 211 };
184 212
185 // The ErrorCallback is used by methods to asynchronously report errors. 213 // The ErrorCallback is used by methods to asynchronously report errors.
186 typedef base::Closure ErrorCallback; 214 typedef base::Closure ErrorCallback;
187 215
188 virtual ~BluetoothGattService(); 216 virtual ~BluetoothGattService();
189 217
190 // Adds and removes observers for events on this GATT service. If monitoring 218 // Adds and removes observers for events on this GATT service. If monitoring
191 // multiple services, check the |service| parameter of observer methods to 219 // multiple services, check the |service| parameter of observer methods to
192 // determine which service is issuing the event. 220 // determine which service is issuing the event.
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270 protected: 298 protected:
271 BluetoothGattService(); 299 BluetoothGattService();
272 300
273 private: 301 private:
274 DISALLOW_COPY_AND_ASSIGN(BluetoothGattService); 302 DISALLOW_COPY_AND_ASSIGN(BluetoothGattService);
275 }; 303 };
276 304
277 } // namespace device 305 } // namespace device
278 306
279 #endif // DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_H_ 307 #endif // DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_H_
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