1 /*
2 * Copyright (C) 2018 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 #define LOG_TAG "CarServiceHelperService-JNI"
18
19 //#define LOG_NDEBUG 0
20
21 #include "jni.h"
22
23 #include <nativehelper/JNIHelp.h>
24 #include <suspend/autosuspend.h>
25 #include <utils/Log.h>
26
27 namespace android {
28
29 // ----------------------------------------------------------------------------
30
nativeForceSuspend(JNIEnv *,jclass,jint timeoutMs)31 static jint nativeForceSuspend(JNIEnv* /* env */, jclass /* clazz */, jint timeoutMs) {
32 jint ret = autosuspend_force_suspend(timeoutMs);
33 ALOGD("nativeForceSuspend returned %d", ret);
34 return ret;
35 }
36
37 // ----------------------------------------------------------------------------
38
39 static const JNINativeMethod gCarServiceHelperServiceMethods[] = {
40 /* name, signature, funcPtr */
41 { "nativeForceSuspend", "(I)I",
42 (void*) nativeForceSuspend },
43 };
44
register_android_internal_car_CarServiceHelperService(JNIEnv * env)45 int register_android_internal_car_CarServiceHelperService(JNIEnv* env) {
46 int res = jniRegisterNativeMethods(env, "com/android/internal/car/CarServiceHelperService",
47 gCarServiceHelperServiceMethods, NELEM(gCarServiceHelperServiceMethods));
48 (void) res; // Faked use when LOG_NDEBUG.
49 LOG_FATAL_IF(res < 0, "Unable to register native methods.");
50 return 0;
51 }
52
53 } /* namespace android */
54
55
56 using namespace android;
57
JNI_OnLoad(JavaVM * vm,void *)58 extern "C" jint JNI_OnLoad(JavaVM* vm, void* /* reserved */)
59 {
60 JNIEnv* env = NULL;
61 jint result = -1;
62
63 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
64 ALOGE("GetEnv failed!");
65 return result;
66 }
67 ALOG_ASSERT(env, "Could not retrieve the env!");
68
69 register_android_internal_car_CarServiceHelperService(env);
70 return JNI_VERSION_1_4;
71 }
72