1 /* 2 * Copyright 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <optional> 20 #include <string> 21 22 namespace bluetooth { 23 namespace os { 24 25 // Get |property| keyed system property from supported platform, return std::nullopt if the property does not exist 26 // or if the platform does not support system property 27 std::optional<std::string> GetSystemProperty(const std::string& property); 28 29 // Set |property| keyed system property to |value|, return true if the set was successful and false if the set failed 30 // Replace existing value if property already exists 31 bool SetSystemProperty(const std::string& property, const std::string& value); 32 33 // Clear system properties for host only 34 void ClearSystemPropertiesForHost(); 35 36 } // namespace os 37 } // namespace bluetooth