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 Test1920NativeSuspendMonitor { 32 33 std::atomic<bool> should_pause(false); 34 std::atomic<bool> paused(false); 35 std::atomic<bool> done(false); 36 std::atomic<bool> started(false); 37 38 extern "C" JNIEXPORT void JNICALL Java_art_Test1920_nativeSpin(JNIEnv* env, jclass) { 39 jrawMonitorID mon; 40 if (JvmtiErrorToException( 41 env, jvmti_env, jvmti_env->CreateRawMonitor("Test1920 monitor", &mon))) { 42 return; 43 } 44 while (!done.load()) { 45 while (should_pause.load()) { 46 paused.store(true); 47 } 48 paused.store(false); 49 if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorEnter(mon))) { 50 return; 51 } 52 started.store(true); 53 if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorExit(mon))) { 54 return; 55 } 56 } 57 } 58 59 extern "C" JNIEXPORT jboolean JNICALL Java_art_Test1920_isNativeThreadSpinning(JNIEnv*, jclass) { 60 return started.load(); 61 } 62 63 extern "C" JNIEXPORT void JNICALL Java_art_Test1920_pause(JNIEnv*, jclass) { 64 should_pause.store(true); 65 paused.store(false); 66 while (!paused.load()) { } 67 } 68 extern "C" JNIEXPORT void JNICALL Java_art_Test1920_resume(JNIEnv*, jclass) { 69 should_pause.store(false); 70 while (paused.load()) { } 71 } 72 73 extern "C" JNIEXPORT void JNICALL Java_art_Test1920_reset(JNIEnv*, jclass) { 74 started.store(false); 75 } 76 extern "C" JNIEXPORT void JNICALL Java_art_Test1920_nativeFinish(JNIEnv*, jclass) { 77 done.store(true); 78 } 79 80 } // namespace Test1920NativeSuspendMonitor 81 } // namespace art 82
