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| 1 // Copyright 2016 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 #include "device/bluetooth/bluez/bluetooth_gatt_notify_session_bluez.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "device/bluetooth/bluetooth_adapter.h" | |
| 10 #include "device/bluetooth/bluetooth_device.h" | |
| 11 #include "device/bluetooth/bluetooth_remote_gatt_service.h" | |
| 12 #include "device/bluetooth/bluez/bluetooth_remote_gatt_characteristic_bluez.h" | |
| 13 #include "device/bluetooth/dbus/bluez_dbus_manager.h" | |
| 14 | |
| 15 namespace bluez { | |
| 16 | |
| 17 BluetoothGattNotifySessionBlueZ::BluetoothGattNotifySessionBlueZ( | |
| 18 scoped_refptr<device::BluetoothAdapter> adapter, | |
| 19 const std::string& device_address, | |
| 20 const std::string& service_identifier, | |
| 21 const std::string& characteristic_identifier, | |
| 22 const dbus::ObjectPath& characteristic_path) | |
| 23 : active_(true), | |
| 24 adapter_(adapter), | |
| 25 device_address_(device_address), | |
| 26 service_id_(service_identifier), | |
| 27 characteristic_id_(characteristic_identifier), | |
| 28 object_path_(characteristic_path) { | |
| 29 DCHECK(adapter_.get()); | |
| 30 DCHECK(!device_address_.empty()); | |
| 31 DCHECK(!service_id_.empty()); | |
| 32 DCHECK(!characteristic_id_.empty()); | |
| 33 DCHECK(object_path_.IsValid()); | |
| 34 | |
| 35 bluez::BluezDBusManager::Get() | |
| 36 ->GetBluetoothGattCharacteristicClient() | |
| 37 ->AddObserver(this); | |
| 38 } | |
| 39 | |
| 40 BluetoothGattNotifySessionBlueZ::~BluetoothGattNotifySessionBlueZ() { | |
| 41 bluez::BluezDBusManager::Get() | |
| 42 ->GetBluetoothGattCharacteristicClient() | |
| 43 ->RemoveObserver(this); | |
| 44 Stop(base::Bind(&base::DoNothing)); | |
| 45 } | |
| 46 | |
| 47 std::string BluetoothGattNotifySessionBlueZ::GetCharacteristicIdentifier() | |
| 48 const { | |
| 49 return characteristic_id_; | |
| 50 } | |
| 51 | |
| 52 bool BluetoothGattNotifySessionBlueZ::IsActive() { | |
| 53 // Determine if the session is active. If |active_| is false, then it's | |
| 54 // been explicitly marked, so return false. | |
| 55 if (!active_) | |
| 56 return false; | |
| 57 | |
| 58 // The fact that |active_| is true doesn't mean that the session is | |
| 59 // actually active, since the characteristic might have stopped sending | |
| 60 // notifications yet this method was called before we processed the | |
| 61 // observer event (e.g. because somebody else called this method in their | |
| 62 // bluez::BluetoothGattCharacteristicClient::Observer implementation, which | |
| 63 // was | |
| 64 // called before ours). Check the client to see if notifications are still | |
| 65 // being sent. | |
| 66 bluez::BluetoothGattCharacteristicClient::Properties* properties = | |
| 67 bluez::BluezDBusManager::Get() | |
| 68 ->GetBluetoothGattCharacteristicClient() | |
| 69 ->GetProperties(object_path_); | |
| 70 if (!properties || !properties->notifying.value()) | |
| 71 active_ = false; | |
| 72 | |
| 73 return active_; | |
| 74 } | |
| 75 | |
| 76 void BluetoothGattNotifySessionBlueZ::Stop(const base::Closure& callback) { | |
| 77 if (!active_) { | |
| 78 VLOG(1) << "Notify session already inactive."; | |
| 79 callback.Run(); | |
| 80 return; | |
| 81 } | |
| 82 | |
| 83 // Mark this session as inactive no matter what. | |
| 84 active_ = false; | |
| 85 | |
| 86 device::BluetoothDevice* device = adapter_->GetDevice(device_address_); | |
| 87 if (!device) | |
| 88 return; | |
| 89 | |
| 90 device::BluetoothRemoteGattService* service = | |
| 91 device->GetGattService(service_id_); | |
| 92 if (!service) | |
| 93 return; | |
| 94 | |
| 95 BluetoothRemoteGattCharacteristicBlueZ* chrc = | |
| 96 static_cast<BluetoothRemoteGattCharacteristicBlueZ*>( | |
| 97 service->GetCharacteristic(characteristic_id_)); | |
| 98 if (!chrc) | |
| 99 return; | |
| 100 | |
| 101 chrc->RemoveNotifySession(callback); | |
| 102 } | |
| 103 | |
| 104 void BluetoothGattNotifySessionBlueZ::GattCharacteristicRemoved( | |
| 105 const dbus::ObjectPath& object_path) { | |
| 106 if (object_path != object_path_) | |
| 107 return; | |
| 108 | |
| 109 active_ = false; | |
| 110 } | |
| 111 | |
| 112 void BluetoothGattNotifySessionBlueZ::GattCharacteristicPropertyChanged( | |
| 113 const dbus::ObjectPath& object_path, | |
| 114 const std::string& property_name) { | |
| 115 if (object_path != object_path_) | |
| 116 return; | |
| 117 | |
| 118 if (!active_) | |
| 119 return; | |
| 120 | |
| 121 bluez::BluetoothGattCharacteristicClient::Properties* properties = | |
| 122 bluez::BluezDBusManager::Get() | |
| 123 ->GetBluetoothGattCharacteristicClient() | |
| 124 ->GetProperties(object_path_); | |
| 125 if (!properties) { | |
| 126 active_ = false; | |
| 127 return; | |
| 128 } | |
| 129 | |
| 130 if (property_name == properties->notifying.name() && | |
| 131 !properties->notifying.value()) | |
| 132 active_ = false; | |
| 133 } | |
| 134 | |
| 135 } // namespace bluez | |
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Chromium Code Reviews
Issue 2051333004:
Implement BluetoothGattNotifySession::Stop on Android, 2nd attempt (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master