bluetooth: mac: Initial BluetoothRemoteGattCharacteristicMac implementation

device/bluetooth/bluetooth_remote_gatt_service_mac.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_SERVICE_MAC_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_MAC_H_
 
 #include <stdint.h>
 
 #include <vector>
 
+#include "base/containers/scoped_ptr_hash_map.h"
 #include "base/mac/scoped_nsobject.h"
 #include "device/bluetooth/bluetooth_remote_gatt_service.h"
 
+@class CBPeripheral;
 @class CBService;
 
 namespace device {
 
 class BluetoothDevice;
-class BluetoothGattCharacteristic;
+class BluetoothRemoteGattCharacteristicMac;
 class BluetoothLowEnergyDeviceMac;
 class BluetoothTestMac;
 
 class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattServiceMac
     : public BluetoothRemoteGattService {
  public:
   BluetoothRemoteGattServiceMac(
       BluetoothLowEnergyDeviceMac* bluetooth_device_mac,
       CBService* service,
       bool is_primary);
   ~BluetoothRemoteGattServiceMac() override;
 
   // BluetoothRemoteGattService override.
   std::string GetIdentifier() const override;
   BluetoothUUID GetUUID() const override;
   bool IsPrimary() const override;
   BluetoothDevice* GetDevice() const override;
   std::vector<BluetoothRemoteGattCharacteristic*> GetCharacteristics()
       const override;
   std::vector<BluetoothRemoteGattService*> GetIncludedServices() const override;
   BluetoothRemoteGattCharacteristic* GetCharacteristic(
       const std::string& identifier) const override;
 
  private:
   friend BluetoothLowEnergyDeviceMac;
   friend BluetoothTestMac;
 
+  // Starts discovering characteristics by calling CoreBluetooth.
+  void DiscoverCharacteristics();
+
+  // Called by the BluetoothLowEnergyDeviceMac instance when the characteristics
+  // has been discovered.
+  void DidDiscoverCharacteristics();
+
+  // Returns true if the characteristics has been discovered.
+  bool IsDiscoveryComplete();
+
+  // Returns CBPeripheral.
+  CBPeripheral* GetPeripheral() const;
   // Returns CBService.
   CBService* GetService() const;
 
   // bluetooth_device_mac_ owns instances of this class.
   BluetoothLowEnergyDeviceMac* bluetooth_device_mac_;
   // A service from CBPeripheral.services.
   base::scoped_nsobject<CBService> service_;
+  // Map of characteristics, keyed by characteristic identifier.
+  base::ScopedPtrHashMap<std::string,
+                         std::unique_ptr<BluetoothRemoteGattCharacteristicMac>>
+      gatt_characteristic_macs_;
   bool is_primary_;
   // Service identifier.
   std::string identifier_;
   // Service UUID.
   BluetoothUUID uuid_;
+  // Is true if the characteristics has been discovered.
+  bool is_discovery_complete_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattServiceMac);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_MAC_H_