device/bluetooth/bluetooth_adapter_mac.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_MAC_H_
   6 #define DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_MAC_H_
   7
   8 #include <IOKit/IOReturn.h>
   9
  10 #include <string>
  11 #include <vector>
  12
  13 #include "base/containers/hash_tables.h"
  14 #include "base/memory/ref_counted.h"
  15 #include "base/memory/weak_ptr.h"
  16 #include "base/observer_list.h"
  17 #include "device/bluetooth/bluetooth_adapter.h"
  18
  19 #ifdef __OBJC__
  20 @class BluetoothAdapterMacDelegate;
  21 @class IOBluetoothDevice;
  22 @class IOBluetoothDeviceInquiry;
  23 @class NSArray;
  24 @class NSDate;
  25 #else
  26 class BluetoothAdapterMacDelegate;
  27 class IOBluetoothDevice;
  28 class IOBluetoothDeviceInquiry;
  29 class NSArray;
  30 class NSDate;
  31 #endif
  32
  33 namespace base {
  34
  35 class SequencedTaskRunner;
  36
  37 }  // namespace base
  38
  39 namespace device {
  40
  41 class BluetoothAdapterMacTest;
  42
  43 class BluetoothAdapterMac : public BluetoothAdapter {
  44  public:
  45   // BluetoothAdapter override
  46   virtual void AddObserver(BluetoothAdapter::Observer* observer) OVERRIDE;
  47   virtual void RemoveObserver(BluetoothAdapter::Observer* observer) OVERRIDE;
  48   virtual std::string GetAddress() const OVERRIDE;
  49   virtual std::string GetName() const OVERRIDE;
  50   virtual bool IsInitialized() const OVERRIDE;
  51   virtual bool IsPresent() const OVERRIDE;
  52   virtual bool IsPowered() const OVERRIDE;
  53   virtual void SetPowered(
  54       bool powered,
  55       const base::Closure& callback,
  56       const ErrorCallback& error_callback) OVERRIDE;
  57   virtual bool IsDiscovering() const OVERRIDE;
  58
  59   virtual void StartDiscovering(
  60       const base::Closure& callback,
  61       const ErrorCallback& error_callback) OVERRIDE;
  62   virtual void StopDiscovering(
  63       const base::Closure& callback,
  64       const ErrorCallback& error_callback) OVERRIDE;
  65   virtual void ReadLocalOutOfBandPairingData(
  66       const BluetoothOutOfBandPairingDataCallback& callback,
  67       const ErrorCallback& error_callback) OVERRIDE;
  68
  69   // called by BluetoothAdapterMacDelegate.
  70   void DeviceInquiryStarted(IOBluetoothDeviceInquiry* inquiry);
  71   void DeviceFound(IOBluetoothDeviceInquiry* inquiry,
  72                    IOBluetoothDevice* device);
  73   void DeviceInquiryComplete(IOBluetoothDeviceInquiry* inquiry,
  74                              IOReturn error,
  75                              bool aborted);
  76
  77  private:
  78   friend class BluetoothAdapterFactory;
  79   friend class BluetoothAdapterMacTest;
  80
  81   enum DiscoveryStatus {
  82     NOT_DISCOVERING,
  83     DISCOVERY_STARTING,
  84     DISCOVERING,
  85     DISCOVERY_STOPPING
  86   };
  87
  88   BluetoothAdapterMac();
  89   virtual ~BluetoothAdapterMac();
  90
  91   void Init();
  92   void InitForTest(scoped_refptr<base::SequencedTaskRunner> ui_task_runner);
  93   void PollAdapter();
  94
  95   // Updates |devices_| to be consistent with |devices|.
  96   void UpdateDevices(NSArray* devices);
  97
  98   void MaybeStartDeviceInquiry();
  99   void MaybeStopDeviceInquiry();
 100
 101   typedef std::vector<std::pair<base::Closure, ErrorCallback> >
 102       DiscoveryCallbackList;
 103   void RunCallbacks(const DiscoveryCallbackList& callback_list,
 104                     bool success) const;
 105
 106   std::string address_;
 107   std::string name_;
 108   bool powered_;
 109   DiscoveryStatus discovery_status_;
 110
 111   DiscoveryCallbackList on_start_discovery_callbacks_;
 112   DiscoveryCallbackList on_stop_discovery_callbacks_;
 113   size_t num_discovery_listeners_;
 114
 115   BluetoothAdapterMacDelegate* adapter_delegate_;
 116   IOBluetoothDeviceInquiry* device_inquiry_;
 117
 118   // A list of discovered device addresses.
 119   // This list is used to check if the same device is discovered twice during
 120   // the discovery between consecutive inquiries.
 121   base::hash_set<std::string> discovered_devices_;
 122
 123   // Timestamp for the recently accessed device.
 124   // Used to determine if |devices_| needs an update.
 125   NSDate* recently_accessed_device_timestamp_;
 126
 127   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
 128
 129   // List of observers interested in event notifications from us.
 130   ObserverList<BluetoothAdapter::Observer> observers_;
 131
 132   base::WeakPtrFactory<BluetoothAdapterMac> weak_ptr_factory_;
 133
 134   DISALLOW_COPY_AND_ASSIGN(BluetoothAdapterMac);
 135 };
 136
 137 }  // namespace device
 138
 139 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_MAC_H_