1 /*
2  * Copyright (C) 2017 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 #include <atomic>
18 
19 #include "android-base/logging.h"
20 #include "jni.h"
21 #include "scoped_local_ref.h"
22 #include "scoped_primitive_array.h"
23 
24 #include "jvmti.h"
25 
26 // Test infrastructure
27 #include "jvmti_helper.h"
28 #include "test_env.h"
29 
30 namespace art {
31 namespace Test1908NativeSuspendResume {
32 
33 std::atomic<bool> done(false);
34 std::atomic<bool> started(false);
35 std::atomic<bool> resumed(false);
36 std::atomic<bool> resuming(false);
37 
38 extern "C" JNIEXPORT jint JNICALL Java_art_Test1908_nativeSpinAndResume(JNIEnv*,
39                                                                         jclass,
40                                                                         jthread thr) {
41   while (!done.load()) {
42     started.store(true);
43   }
44   resuming.store(true);
45   jint ret = jvmti_env->ResumeThread(thr);
46   resumed.store(true);
47   return ret;
48 }
49 
50 extern "C" JNIEXPORT jboolean JNICALL Java_art_Test1908_isNativeThreadSpinning(JNIEnv*, jclass) {
51   return started.load();
52 }
53 
54 extern "C" JNIEXPORT void JNICALL Java_art_Test1908_waitForNativeResumeStarted(JNIEnv*, jclass) {
55   while (!resuming.load()) {}
56 }
57 
58 extern "C" JNIEXPORT void JNICALL Java_art_Test1908_waitForNativeResumeFinished(JNIEnv*, jclass) {
59   while (!resumed.load()) {}
60 }
61 
62 extern "C" JNIEXPORT void JNICALL Java_art_Test1908_nativeResume(JNIEnv*, jclass) {
63   done.store(true);
64 }
65 
66 }  // namespace Test1908NativeSuspendResume
67 }  // namespace art
68