1 //
2 // Copyright (C) 2021 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 //! This module implements safe wrappers for GetServerConfigurableFlag method
18 //! from libflags.
19 
20 pub use ffi::GetServerConfigurableFlag;
21 
22 #[cxx::bridge]
23 mod ffi {
24     unsafe extern "C++" {
25         include!("get_flags.hpp");
26 
27         /// Use the category name and flag name registered in SettingsToPropertiesMapper.java
28         /// to query the experiment flag value. This method will return default_value if
29         /// querying fails.
30         /// Note that for flags from Settings.Global, experiment_category_name should
31         /// always be global_settings.
GetServerConfigurableFlag( experiment_category_name: &str, experiment_flag_name: &str, default_value: &str, ) -> String32         fn GetServerConfigurableFlag(
33             experiment_category_name: &str,
34             experiment_flag_name: &str,
35             default_value: &str,
36         ) -> String;
37     }
38 }
39