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105 lines
3.9 KiB
C++
105 lines
3.9 KiB
C++
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef THIRD_PARTY_NEARBY_FASTPAIR_PAIRING_PAIRER_BROKER_IMPL_H_
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#define THIRD_PARTY_NEARBY_FASTPAIR_PAIRING_PAIRER_BROKER_IMPL_H_
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#include <memory>
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#include <optional>
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#include <string>
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#include "absl/container/flat_hash_map.h"
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#include "fastpair/common/fast_pair_device.h"
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#include "fastpair/internal/mediums/mediums.h"
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#include "fastpair/pairing/fastpair/fast_pair_pairer.h"
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#include "fastpair/pairing/pairer_broker.h"
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#include "internal/account/account_manager.h"
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#include "internal/base/observer_list.h"
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#include "internal/platform/single_thread_executor.h"
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#include "internal/platform/timer_impl.h"
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namespace nearby {
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namespace fastpair {
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class PairerBrokerImpl : public PairerBroker {
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public:
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explicit PairerBrokerImpl(Mediums& medium, SingleThreadExecutor* executor,
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AccountManager* account_manager);
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PairerBrokerImpl(const PairerBrokerImpl&) = delete;
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PairerBrokerImpl& operator=(const PairerBrokerImpl&) = delete;
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// PairingBroker:
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void AddObserver(Observer* observer) override;
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// The `observer` can still be called after removing if it has already
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// been scheduled to run (or is running) on the background thread.
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void RemoveObserver(Observer* observer) override;
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void PairDevice(FastPairDevice& device) override;
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bool IsPairing() override;
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void StopPairing() override;
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friend class PairerBrokerImplTest;
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private:
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mutable Mutex mutex_;
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void PairFastPairDevice(FastPairDevice& device);
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void CreateHandshake(FastPairDevice& device);
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void OnHandshakeComplete(FastPairDevice& device,
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std::optional<PairFailure> failure)
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
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void OnHandshakeFailure(FastPairDevice& device, PairFailure failure)
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
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void StartPairingAttempt(FastPairDevice& device);
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void OnFastPairDevicePaired(FastPairDevice& device)
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
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void OnFastPairPairingFailure(FastPairDevice& device, PairFailure failure)
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
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void OnFastPairProcedureComplete(FastPairDevice& device)
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
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void OnAccountKeyFailure(FastPairDevice& device, PairFailure failure)
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
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void EraseHandshakeAndPairers(FastPairDevice& device)
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
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Mediums& medium_;
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SingleThreadExecutor* executor_;
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AccountManager* account_manager_;
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// The key for all the following maps is a device model id.
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absl::flat_hash_map<std::string, std::unique_ptr<FastPairPairer>>
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fast_pair_pairers_ ABSL_GUARDED_BY(mutex_);
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absl::flat_hash_map<std::string, int> pair_failure_counts_
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ABSL_GUARDED_BY(mutex_);
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absl::flat_hash_map<std::string, bool>
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did_handshake_previously_complete_successfully_map_
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ABSL_GUARDED_BY(mutex_);
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absl::flat_hash_map<std::string, int> num_handshake_attempts_
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ABSL_GUARDED_BY(mutex_);
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absl::flat_hash_map<std::string, std::string>
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model_id_to_current_ble_address_map_ ABSL_GUARDED_BY(mutex_);
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// Timer
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std::unique_ptr<TimerImpl> cancel_pairing_timer_;
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std::unique_ptr<TimerImpl> retry_handshake_timer_;
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ObserverList<Observer> observers_;
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};
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} // namespace fastpair
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_FASTPAIR_PAIRING_PAIRER_BROKER_IMPL_H_
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