1 /*
2 * Copyright (C) 2023 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 //! Implementation of JNI protocol functionality.
18 use crate::unique_jvm;
19 use crate::utils::get_boolean_result;
20 use jni::objects::JObject;
21 use jni::sys::jboolean;
22 use jni::JNIEnv;
23
24 /// Initialize native library. Captures Java VM:
25 #[no_mangle]
Java_com_android_server_remoteauth_jni_NativeRemoteAuthJavaPlatform_native_init( env: JNIEnv, _: JObject, ) -> jboolean26 pub extern "system" fn Java_com_android_server_remoteauth_jni_NativeRemoteAuthJavaPlatform_native_init(
27 env: JNIEnv,
28 _: JObject,
29 ) -> jboolean {
30 logger::init(
31 logger::Config::default()
32 .with_tag_on_device("remoteauth")
33 .with_max_level(log::LevelFilter::Trace)
34 .with_filter("trace,jni=info"),
35 );
36 get_boolean_result(native_init(env), "native_init")
37 }
38
native_init(env: JNIEnv) -> anyhow::Result<()>39 fn native_init(env: JNIEnv) -> anyhow::Result<()> {
40 let jvm = env.get_java_vm()?;
41 unique_jvm::set_once(jvm)
42 }
43