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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 <atomic>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include "common/bidi_queue.h"
#include "common/bind.h"
#include "common/multi_priority_queue.h"
#include "l2cap/cid.h"
#include "l2cap/internal/channel_impl.h"
#include "l2cap/internal/scheduler.h"
#include "l2cap/internal/sender.h"
#include "os/handler.h"
#include "os/queue.h"
namespace bluetooth {
namespace l2cap {
namespace internal {
class DataPipelineManager;
class Fifo : public Scheduler {
public:
Fifo(DataPipelineManager* data_pipeline_manager, LowerQueueUpEnd* link_queue_up_end, os::Handler* handler);
~Fifo();
void OnPacketsReady(Cid cid, int number_packets) override;
void SetChannelTxPriority(Cid cid, bool high_priority) override;
void RemoveChannel(Cid cid) override;
private:
DataPipelineManager* data_pipeline_manager_;
LowerQueueUpEnd* link_queue_up_end_;
os::Handler* handler_;
using ChannelAndNumPackets = std::pair<Cid, int>;
common::MultiPriorityQueue<ChannelAndNumPackets, 2> next_to_dequeue_and_num_packets;
std::unordered_set<Cid> high_priority_cids_;
std::atomic_bool link_queue_enqueue_registered_ = false;
void try_register_link_queue_enqueue();
std::unique_ptr<LowerEnqueue> link_queue_enqueue_callback();
};
} // namespace internal
} // namespace l2cap
} // namespace bluetooth
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