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/*
* Copyright 2021 HIMSA II K/S - www.himsa.com.
* Represented by EHIMA - www.ehima.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <list>
#include "types/bluetooth/uuid.h"
#include "types/raw_address.h"
namespace bluetooth {
namespace groups {
static constexpr int kGroupUnknown = -1;
static const bluetooth::Uuid kGenericContextUuid =
bluetooth::Uuid::From16Bit(0x0000);
class DeviceGroupsCallbacks {
public:
virtual ~DeviceGroupsCallbacks() = default;
/* Notifies first group appearance.
* This callback also contains first group member and uuid of the group.
*/
virtual void OnGroupAdded(const RawAddress& address,
const bluetooth::Uuid& group_uuid,
int group_id) = 0;
/* Followed group members are notified with this callback */
virtual void OnGroupMemberAdded(const RawAddress& address, int group_id) = 0;
/* Group removal callback */
virtual void OnGroupRemoved(const bluetooth::Uuid& group_uuid,
int group_id) = 0;
/* Callback with group status update */
virtual void OnGroupMemberRemoved(const RawAddress& address,
int group_id) = 0;
/* Callback with group information added from storage */
virtual void OnGroupAddFromStorage(const RawAddress& address,
const bluetooth::Uuid& group_uuid,
int group_id) = 0;
};
class DeviceGroups {
public:
virtual ~DeviceGroups() = default;
static void Initialize(DeviceGroupsCallbacks* callbacks);
static void AddFromStorage(const RawAddress& addr,
const std::vector<uint8_t>& in);
static bool GetForStorage(const RawAddress& addr, std::vector<uint8_t>& out);
static void CleanUp(DeviceGroupsCallbacks* callbacks);
static DeviceGroups* Get();
static void DebugDump(int fd);
/** To add to the existing group, group_id needs to be provided.
* Otherwise a new group for the given context uuid will be created.
*/
virtual int AddDevice(
const RawAddress& addr,
bluetooth::Uuid uuid = bluetooth::groups::kGenericContextUuid,
int group_id = bluetooth::groups::kGroupUnknown) = 0;
virtual int GetGroupId(
const RawAddress& addr,
bluetooth::Uuid uuid = bluetooth::groups::kGenericContextUuid) const = 0;
virtual void RemoveDevice(
const RawAddress& addr,
int group_id = bluetooth::groups::kGroupUnknown) = 0;
};
} // namespace groups
} // namespace bluetooth
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