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67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
// Copyright 2024 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 PLATFORM_IMPL_LINUX_API_BLE_V2_SOCKET_ADAPTER_H_
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#define PLATFORM_IMPL_LINUX_API_BLE_V2_SOCKET_ADAPTER_H_
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#include <memory>
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#include <string>
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#include "absl/container/flat_hash_map.h"
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#include "absl/synchronization/mutex.h"
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#include "internal/platform/byte_array.h"
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#include "internal/platform/implementation/ble_v2.h"
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#include "internal/platform/implementation/linux/ble_v2_socket.h"
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#include "internal/platform/uuid.h"
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namespace nearby {
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namespace linux {
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// Helper class to adapt GATT server callbacks to socket data streams
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// This wires up the ServerGattConnectionCallback to feed data into BleV2Socket
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class BleV2SocketAdapter {
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public:
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BleV2SocketAdapter() = default;
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~BleV2SocketAdapter() = default;
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// Create GATT server callbacks that will route data to/from sockets
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api::ble_v2::ServerGattConnectionCallback CreateServerCallbacks();
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// Register a socket for a specific remote device
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// When GATT writes come from this device, data is routed to this socket
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void RegisterSocket(api::ble_v2::BlePeripheral::UniqueId device_id,
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BleV2Socket* socket) ABSL_LOCKS_EXCLUDED(mutex_);
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// Unregister a socket
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void UnregisterSocket(api::ble_v2::BlePeripheral::UniqueId device_id)
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ABSL_LOCKS_EXCLUDED(mutex_);
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// Get the RX characteristic UUID (for receiving data from remote)
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static Uuid GetRxCharacteristicUuid();
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// Get the TX characteristic UUID (for sending data to remote)
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static Uuid GetTxCharacteristicUuid();
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private:
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absl::Mutex mutex_;
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// Map of device ID to socket for routing incoming GATT writes
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absl::flat_hash_map<api::ble_v2::BlePeripheral::UniqueId, BleV2Socket*>
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device_sockets_ ABSL_GUARDED_BY(mutex_);
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};
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} // namespace linux
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} // namespace nearby
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#endif // PLATFORM_IMPL_LINUX_API_BLE_V2_SOCKET_ADAPTER_H_
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