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/*
* Copyright 2019 The Android Open Source Project
*
* 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 <string>
#include <unordered_map>
#include "common/bidi_queue.h"
#include "common/bind.h"
#include "data_controller.h"
#include "l2cap/cid.h"
#include "l2cap/classic/internal/channel_configuration_state.h"
#include "l2cap/internal/channel_impl.h"
#include "l2cap/internal/receiver.h"
#include "l2cap/internal/scheduler.h"
#include "l2cap/internal/scheduler_fifo.h"
#include "l2cap/l2cap_packets.h"
#include "l2cap/mtu.h"
#include "os/handler.h"
#include "os/log.h"
#include "os/queue.h"
#include "packet/base_packet_builder.h"
#include "packet/packet_view.h"
namespace bluetooth {
namespace l2cap {
namespace internal {
class ILink;
/**
* Manages data pipeline from channel queue end to link queue end, per link.
* Contains a Scheduler and Receiver per link.
* Contains a Sender and its corresponding DataController per attached channel.
*/
class DataPipelineManager {
public:
using UpperEnqueue = packet::PacketView<packet::kLittleEndian>;
using UpperDequeue = packet::BasePacketBuilder;
using UpperQueueDownEnd = common::BidiQueueEnd<UpperEnqueue, UpperDequeue>;
using LowerEnqueue = UpperDequeue;
using LowerDequeue = UpperEnqueue;
using LowerQueueUpEnd = common::BidiQueueEnd<LowerEnqueue, LowerDequeue>;
DataPipelineManager(os::Handler* handler, ILink* link, LowerQueueUpEnd* link_queue_up_end)
: handler_(handler), link_(link), scheduler_(std::make_unique<Fifo>(this, link_queue_up_end, handler)),
receiver_(link_queue_up_end, handler, this) {}
using ChannelMode = Sender::ChannelMode;
virtual void AttachChannel(Cid cid, std::shared_ptr<ChannelImpl> channel, ChannelMode mode);
virtual void DetachChannel(Cid cid);
virtual DataController* GetDataController(Cid cid);
virtual void OnPacketSent(Cid cid);
virtual void UpdateClassicConfiguration(Cid cid, classic::internal::ChannelConfigurationState config);
virtual void SetChannelTxPriority(Cid cid, bool high_priority);
virtual ~DataPipelineManager() = default;
private:
os::Handler* handler_;
ILink* link_;
std::unordered_map<Cid, Sender> sender_map_;
std::unique_ptr<Scheduler> scheduler_;
Receiver receiver_;
};
} // namespace internal
} // namespace l2cap
} // namespace bluetooth
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