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nearby/sharing/nearby_connection_impl.h
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hai007 c40a65e492 Internal change
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2024-01-16 12:54:38 -08:00

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// Copyright 2022-2023 Google LLC
//
// 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
//
// https://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.
#ifndef THIRD_PARTY_NEARBY_SHARING_NEARBY_CONNECTION_IMPL_H_
#define THIRD_PARTY_NEARBY_SHARING_NEARBY_CONNECTION_IMPL_H_
#include <cstdint>
#include <functional>
#include <queue>
#include <string>
#include <vector>
#include "absl/base/thread_annotations.h"
#include "absl/strings/string_view.h"
#include "internal/platform/device_info.h"
#include "internal/platform/mutex.h"
#include "sharing/nearby_connection.h"
namespace nearby {
namespace sharing {
class NearbyConnectionsManager;
class NearbyConnectionImpl : public NearbyConnection {
public:
NearbyConnectionImpl(nearby::DeviceInfo& device_info,
NearbyConnectionsManager* nearby_connections_manager,
absl::string_view endpoint_id);
~NearbyConnectionImpl() override;
// NearbyConnection:
void Read(ReadCallback callback) override;
void Write(std::vector<uint8_t> bytes) override;
void Close() override;
void SetDisconnectionListener(std::function<void()> listener) override;
// Add bytes to the read queue, notifying ReadCallback.
void WriteMessage(std::vector<uint8_t> bytes);
private:
nearby::DeviceInfo& device_info_;
NearbyConnectionsManager* const nearby_connections_manager_;
std::string endpoint_id_;
RecursiveMutex mutex_;
ReadCallback read_callback_ ABSL_GUARDED_BY(mutex_) = nullptr;
std::function<void()> disconnect_listener_ ABSL_GUARDED_BY(mutex_);
// A read queue. The data that we've read from the remote device ends up here
// until Read() is called to dequeue it.
std::queue<std::vector<uint8_t>> reads_ ABSL_GUARDED_BY(mutex_);
};
} // namespace sharing
} // namespace nearby
#endif // THIRD_PARTY_NEARBY_SHARING_NEARBY_CONNECTION_IMPL_H_