Implement read & write remote GATT characteristic value for Windows

device/bluetooth/bluetooth_remote_gatt_characteristic_win.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_WIN_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_WIN_H_
 
 #include <unordered_map>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 57 matching lines @@
   // Checks if the descriptor with |uuid| and |attribute_handle| has already
   // been discovered as included descriptor.
   bool IsDescriptorDiscovered(BTH_LE_UUID& uuid, uint16_t attribute_handle);
 
   // Checks if |descriptor| still exists in this characteristic according to
   // newly discovered |num| of |descriptors|.
   static bool DoesDescriptorExist(PBTH_LE_GATT_DESCRIPTOR descriptors,
                                   uint16_t num,
                                   BluetoothRemoteGattDescriptorWin* descriptor);
 
+  void OnReadRemoteCharacteristicValueCallback(
+      scoped_ptr<BTH_LE_GATT_CHARACTERISTIC_VALUE> value,
+      HRESULT hr);
+  void OnWriteRemoteCharacteristicValueCallback(HRESULT hr);
+  BluetoothGattService::GattErrorCode HRESULTToGattErrorCode(HRESULT hr);
+
   BluetoothRemoteGattServiceWin* parent_service_;
   scoped_refptr<BluetoothTaskManagerWin> task_manager_;
 
   // Characteristic info from OS and used to interact with OS.
   scoped_ptr<BTH_LE_GATT_CHARACTERISTIC> characteristic_info_;
   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
   BluetoothUUID characteristic_uuid_;
   std::vector<uint8_t> characteristic_value_;
   std::string characteristic_identifier_;
 
   // The key of GattDescriptorMap is the identitfier of
   // BluetoothRemoteGattDescriptorWin instance.
   typedef std::unordered_map<std::string,
                              scoped_ptr<BluetoothRemoteGattDescriptorWin>>
       GattDescriptorMap;
   GattDescriptorMap included_descriptors_;
 
   // Flag indicates if characteristic added notification of this characteristic
   // has been sent out to avoid duplicate notification.
   bool characteristic_added_notified_;
 
+  // ReadRemoteCharacteristic request callbacks.
+  std::pair<ValueCallback, ErrorCallback> read_characteristic_value_callbacks_;
+
+  // WriteRemoteCharacteristic request callbacks.
+  std::pair<base::Closure, ErrorCallback> write_characteristic_value_callbacks_;
+
+  bool characteristic_value_read_or_write_in_progress_;
+
   base::WeakPtrFactory<BluetoothRemoteGattCharacteristicWin> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattCharacteristicWin);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_WIN_H_