| /* |
| * 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 "common/bidi_queue.h" |
| #include "l2cap/cid.h" |
| #include "l2cap/internal/channel_impl.h" |
| #include "l2cap/le/fixed_channel.h" |
| #include "os/handler.h" |
| #include "os/log.h" |
| |
| namespace bluetooth { |
| namespace l2cap { |
| namespace le { |
| namespace internal { |
| |
| class Link; |
| |
| class FixedChannelImpl : public l2cap::internal::ChannelImpl { |
| public: |
| FixedChannelImpl(Cid cid, Link* link, os::Handler* l2cap_handler); |
| |
| virtual ~FixedChannelImpl() = default; |
| |
| hci::AddressWithType GetDevice() const { |
| return device_; |
| } |
| |
| /* Return the role we have in the associated link */ |
| virtual hci::Role GetRole() const; |
| |
| virtual void RegisterOnCloseCallback(os::Handler* user_handler, FixedChannel::OnCloseCallback on_close_callback); |
| |
| virtual void Acquire(); |
| |
| virtual void Release(); |
| |
| virtual bool IsAcquired() const { |
| return acquired_; |
| } |
| |
| Cid GetCid() const override; |
| Cid GetRemoteCid() const override; |
| virtual void OnClosed(hci::ErrorCode status); |
| |
| virtual std::string ToString() { |
| std::ostringstream ss; |
| ss << "Device " << device_ << " Cid 0x" << std::hex << cid_; |
| return ss.str(); |
| } |
| |
| common::BidiQueueEnd<packet::BasePacketBuilder, packet::PacketView<packet::kLittleEndian>>* GetQueueUpEnd() { |
| return channel_queue_.GetUpEnd(); |
| } |
| |
| common::BidiQueueEnd<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder>* GetQueueDownEnd() { |
| return channel_queue_.GetDownEnd(); |
| } |
| |
| private: |
| // Constructor states |
| // For logging purpose only |
| const Cid cid_; |
| // For logging purpose only |
| const hci::AddressWithType device_; |
| // Needed to handle Acquire() and Release() |
| Link* link_; |
| os::Handler* l2cap_handler_; |
| |
| // User supported states |
| os::Handler* user_handler_ = nullptr; |
| FixedChannel::OnCloseCallback on_close_callback_{}; |
| |
| // Internal states |
| bool acquired_ = false; |
| bool closed_ = false; |
| hci::ErrorCode close_reason_ = hci::ErrorCode::SUCCESS; |
| static constexpr size_t kChannelQueueSize = 10; |
| common::BidiQueue<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder> channel_queue_{ |
| kChannelQueueSize}; |
| |
| DISALLOW_COPY_AND_ASSIGN(FixedChannelImpl); |
| }; |
| |
| } // namespace internal |
| } // namespace le |
| } // namespace l2cap |
| } // namespace bluetooth |