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78 lines
3.0 KiB
Objective-C
78 lines
3.0 KiB
Objective-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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// Note: File language is detected using heuristics. Many Objective-C++ headers are incorrectly
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// classified as C++ resulting in invalid linter errors. The use of "NSArray" and other Foundation
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// classes like "NSData", "NSDictionary" and "NSUUID" are highly weighted for Objective-C and
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// Objective-C++ scores. Oddly, "#import <Foundation/Foundation.h>" does not contribute any points.
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// This comment alone should be enough to trick the IDE in to believing this is actually some sort
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// of Objective-C file. See: cs/google3/devtools/search/lang/recognize_language_classifiers_data
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#import <Foundation/Foundation.h>
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#include <string>
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#include <vector>
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#include "internal/platform/implementation/ble.h"
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#include "internal/platform/uuid.h"
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@class GNCBLEGATTClient;
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namespace nearby {
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namespace apple {
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class GattClient : public api::ble::GattClient {
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public:
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explicit GattClient(GNCBLEGATTClient *gatt_client_);
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~GattClient() override = default;
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// Discovers the specified characteristics of a service.
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//
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// This method blocks until discovery has finished.
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//
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// Returns whether or not discovery finished successfully.
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bool DiscoverServiceAndCharacteristics(const Uuid &service_uuid,
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const std::vector<Uuid> &characteristic_uuids) override;
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// Retrieves a GATT characteristic.
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//
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// DiscoverServiceAndCharacteristics() must be called before this method to fetch all available
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// services and characteristics first.
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//
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// On success, returns the characteristic. On error, returns nullptr.
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std::optional<api::ble::GattCharacteristic> GetCharacteristic(
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const Uuid &service_uuid, const Uuid &characteristic_uuid) override;
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// Reads the requested characteristic from the associated remote device.
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//
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// On success, returns the characteristic's value. On error, returns nullptr.
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std::optional<std::string> ReadCharacteristic(
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const api::ble::GattCharacteristic &characteristic) override;
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// Writes a given characteristic and its values to the associated remote device.
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//
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// Returns whether or not the write was successful.
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bool WriteCharacteristic(const api::ble::GattCharacteristic &characteristic,
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absl::string_view value, api::ble::GattClient::WriteType type) override;
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// Disconnects an established connection, or cancels a connection attempt currently in progress.
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void Disconnect() override;
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private:
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GNCBLEGATTClient *gatt_client_;
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};
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} // namespace apple
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} // namespace nearby
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