src/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 void SetName(const std::string& name,
  51                        const base::Closure& callback,
  52                        const ErrorCallback& error_callback) OVERRIDE;
  53   virtual bool IsInitialized() const OVERRIDE;
  54   virtual bool IsPresent() const OVERRIDE;
  55   virtual bool IsPowered() const OVERRIDE;
  56   virtual void SetPowered(
  57       bool powered,
  58       const base::Closure& callback,
  59       const ErrorCallback& error_callback) OVERRIDE;
  60   virtual bool IsDiscoverable() const OVERRIDE;
  61   virtual void SetDiscoverable(
  62       bool discoverable,
  63       const base::Closure& callback,
  64       const ErrorCallback& error_callback) OVERRIDE;
  65   virtual bool IsDiscovering() const OVERRIDE;
  66
  67   virtual void StartDiscovering(
  68       const base::Closure& callback,
  69       const ErrorCallback& error_callback) OVERRIDE;
  70   virtual void StopDiscovering(
  71       const base::Closure& callback,
  72       const ErrorCallback& error_callback) OVERRIDE;
  73   virtual void ReadLocalOutOfBandPairingData(
  74       const BluetoothOutOfBandPairingDataCallback& callback,
  75       const ErrorCallback& error_callback) OVERRIDE;
  76
  77   // called by BluetoothAdapterMacDelegate.
  78   void DeviceInquiryStarted(IOBluetoothDeviceInquiry* inquiry);
  79   void DeviceFound(IOBluetoothDeviceInquiry* inquiry,
  80                    IOBluetoothDevice* device);
  81   void DeviceInquiryComplete(IOBluetoothDeviceInquiry* inquiry,
  82                              IOReturn error,
  83                              bool aborted);
  84
  85  private:
  86   friend class BluetoothAdapterFactory;
  87   friend class BluetoothAdapterMacTest;
  88
  89   enum DiscoveryStatus {
  90     NOT_DISCOVERING,
  91     DISCOVERY_STARTING,
  92     DISCOVERING,
  93     DISCOVERY_STOPPING
  94   };
  95
  96   BluetoothAdapterMac();
  97   virtual ~BluetoothAdapterMac();
  98
  99   void Init();
 100   void InitForTest(scoped_refptr<base::SequencedTaskRunner> ui_task_runner);
 101   void PollAdapter();
 102
 103   // Updates |devices_| to be consistent with |devices|.
 104   void UpdateDevices(NSArray* devices);
 105
 106   void MaybeStartDeviceInquiry();
 107   void MaybeStopDeviceInquiry();
 108
 109   typedef std::vector<std::pair<base::Closure, ErrorCallback> >
 110       DiscoveryCallbackList;
 111   void RunCallbacks(const DiscoveryCallbackList& callback_list,
 112                     bool success) const;
 113
 114   std::string address_;
 115   std::string name_;
 116   bool powered_;
 117   DiscoveryStatus discovery_status_;
 118
 119   DiscoveryCallbackList on_start_discovery_callbacks_;
 120   DiscoveryCallbackList on_stop_discovery_callbacks_;
 121   size_t num_discovery_listeners_;
 122
 123   BluetoothAdapterMacDelegate* adapter_delegate_;
 124   IOBluetoothDeviceInquiry* device_inquiry_;
 125
 126   // A list of discovered device addresses.
 127   // This list is used to check if the same device is discovered twice during
 128   // the discovery between consecutive inquiries.
 129   base::hash_set<std::string> discovered_devices_;
 130
 131   // Timestamp for the recently accessed device.
 132   // Used to determine if |devices_| needs an update.
 133   NSDate* recently_accessed_device_timestamp_;
 134
 135   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
 136
 137   // List of observers interested in event notifications from us.
 138   ObserverList<BluetoothAdapter::Observer> observers_;
 139
 140   base::WeakPtrFactory<BluetoothAdapterMac> weak_ptr_factory_;
 141
 142   DISALLOW_COPY_AND_ASSIGN(BluetoothAdapterMac);
 143 };
 144
 145 }  // namespace device
 146
 147 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_MAC_H_