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// 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_BLUEZ_BLUETOOTH_REMOTE_GATT_SERVICE_BLUEZ_H_
#define DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_REMOTE_GATT_SERVICE_BLUEZ_H_
#include <stdint.h>
#include <map>
#include <string>
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "dbus/object_path.h"
#include "device/bluetooth/bluetooth_remote_gatt_service.h"
#include "device/bluetooth/bluetooth_uuid.h"
#include "device/bluetooth/bluez/bluetooth_gatt_service_bluez.h"
#include "device/bluetooth/dbus/bluetooth_gatt_characteristic_client.h"
#include "device/bluetooth/dbus/bluetooth_gatt_service_client.h"
namespace device {
class BluetoothDevice;
class BluetoothRemoteGattCharacteristic;
} // namespace device
namespace bluez {
class BluetoothAdapterBlueZ;
class BluetoothDeviceBlueZ;
class BluetoothRemoteGattCharacteristicBlueZ;
class BluetoothRemoteGattDescriptorBlueZ;
// The BluetoothRemoteGattServiceBlueZ class implements BluetootGattService
// for remote GATT services for platforms that use BlueZ.
class BluetoothRemoteGattServiceBlueZ
: public BluetoothGattServiceBlueZ,
public BluetoothGattServiceClient::Observer,
public BluetoothGattCharacteristicClient::Observer,
public device::BluetoothRemoteGattService {
public:
~BluetoothRemoteGattServiceBlueZ() override;
// device::BluetoothRemoteGattService overrides.
device::BluetoothUUID GetUUID() const override;
device::BluetoothDevice* GetDevice() const override;
bool IsPrimary() const override;
std::vector<device::BluetoothRemoteGattCharacteristic*> GetCharacteristics()
const override;
std::vector<device::BluetoothRemoteGattService*> GetIncludedServices()
const override;
device::BluetoothRemoteGattCharacteristic* GetCharacteristic(
const std::string& identifier) const override;
// Notifies its observers that the GATT service has changed. This is mainly
// used by BluetoothRemoteGattCharacteristicBlueZ instances to notify
// service observers when characteristic descriptors get added and removed.
void NotifyServiceChanged();
// Notifies its observers that a descriptor |descriptor| belonging to
// characteristic |characteristic| has been added or removed. This is used
// by BluetoothRemoteGattCharacteristicBlueZ instances to notify service
// observers when characteristic descriptors get added and removed. If |added|
// is true, an "Added" event will be sent. Otherwise, a "Removed" event will
// be sent.
void NotifyDescriptorAddedOrRemoved(
BluetoothRemoteGattCharacteristicBlueZ* characteristic,
BluetoothRemoteGattDescriptorBlueZ* descriptor,
bool added);
// Notifies its observers that the value of a descriptor has changed. Called
// by BluetoothRemoteGattCharacteristicBlueZ instances to notify service
// observers.
void NotifyDescriptorValueChanged(
BluetoothRemoteGattCharacteristicBlueZ* characteristic,
BluetoothRemoteGattDescriptorBlueZ* descriptor,
const std::vector<uint8_t>& value);
private:
friend class BluetoothDeviceBlueZ;
BluetoothRemoteGattServiceBlueZ(BluetoothAdapterBlueZ* adapter,
BluetoothDeviceBlueZ* device,
const dbus::ObjectPath& object_path);
// bluez::BluetoothGattServiceClient::Observer override.
void GattServicePropertyChanged(const dbus::ObjectPath& object_path,
const std::string& property_name) override;
// bluez::BluetoothGattCharacteristicClient::Observer override.
void GattCharacteristicAdded(const dbus::ObjectPath& object_path) override;
void GattCharacteristicRemoved(const dbus::ObjectPath& object_path) override;
void GattCharacteristicPropertyChanged(
const dbus::ObjectPath& object_path,
const std::string& property_name) override;
// The device this GATT service belongs to. It's ok to store a raw pointer
// here since |device_| owns this instance.
BluetoothDeviceBlueZ* device_;
// TODO(rkc): Investigate and fix ownership of the characteristic objects in
// this map. See crbug.com/604166.
using CharacteristicMap =
std::map<dbus::ObjectPath, BluetoothRemoteGattCharacteristicBlueZ*>;
// Mapping from GATT characteristic object paths to characteristic objects.
// owned by this service. Since the BlueZ implementation uses object
// paths as unique identifiers, we also use this mapping to return
// characteristics by identifier.
CharacteristicMap characteristics_;
// Note: This should remain the last member so it'll be destroyed and
// invalidate its weak pointers before any other members are destroyed.
base::WeakPtrFactory<BluetoothRemoteGattServiceBlueZ> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattServiceBlueZ);
};
} // namespace bluez
#endif // DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_REMOTE_GATT_SERVICE_BLUEZ_H_