1 // Copyright 2021, The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 //! Bindings for getting the list of HALs. 16 17 #[cxx::bridge] 18 mod ffi { 19 unsafe extern "C++" { 20 include!("vintf.hpp"); 21 22 /// Gets all HAL names. 23 /// Note that this is not a zero-cost shim: it will make copies of the strings. get_hal_names() -> Vec<String>24 fn get_hal_names() -> Vec<String>; 25 26 /// Gets all HAL names and versions. 27 /// Note that this is not a zero-cost shim: it will make copies of the strings. get_hal_names_and_versions() -> Vec<String>28 fn get_hal_names_and_versions() -> Vec<String>; 29 30 /// Gets the instances of the given package, version, and interface tuple. 31 /// Note that this is not a zero-cost shim: it will make copies of the strings. get_hidl_instances( package: &str, major_version: usize, minor_version: usize, interface_name: &str, ) -> Vec<String>32 fn get_hidl_instances( 33 package: &str, 34 major_version: usize, 35 minor_version: usize, 36 interface_name: &str, 37 ) -> Vec<String>; 38 39 /// Gets the instances of the given package, version, and interface tuple. 40 /// Note that this is not a zero-cost shim: it will make copies of the strings. get_aidl_instances(package: &str, version: usize, interface_name: &str) -> Vec<String>41 fn get_aidl_instances(package: &str, version: usize, interface_name: &str) -> Vec<String>; 42 } 43 } 44 45 pub use ffi::*; 46 47 #[cfg(test)] 48 mod tests { 49 50 use super::*; 51 52 #[test] test()53 fn test() { 54 let names = get_hal_names(); 55 assert_ne!(names.len(), 0); 56 57 let names_and_versions = get_hal_names_and_versions(); 58 assert_ne!(names_and_versions.len(), 0); 59 60 assert!(names_and_versions.len() >= names.len()); 61 } 62 } 63