1 /* 2 * Copyright (C) 2013 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 <stdio.h> 18 #include <string.h> 19 20 #include "android-base/macros.h" 21 22 #include "jni.h" 23 #include "jvmti.h" 24 25 // Test infrastructure 26 #include "jvmti_helper.h" 27 #include "test_env.h" 28 29 namespace art { 30 namespace Test908GcStartFinish { 31 32 static size_t starts = 0; 33 static size_t finishes = 0; 34 35 static void JNICALL GarbageCollectionFinish(jvmtiEnv* ti_env ATTRIBUTE_UNUSED) { 36 finishes++; 37 } 38 39 static void JNICALL GarbageCollectionStart(jvmtiEnv* ti_env ATTRIBUTE_UNUSED) { 40 starts++; 41 } 42 43 extern "C" JNIEXPORT void JNICALL Java_art_Test908_setupGcCallback( 44 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED) { 45 jvmtiEventCallbacks callbacks; 46 memset(&callbacks, 0, sizeof(jvmtiEventCallbacks)); 47 callbacks.GarbageCollectionFinish = GarbageCollectionFinish; 48 callbacks.GarbageCollectionStart = GarbageCollectionStart; 49 50 jvmtiError ret = jvmti_env->SetEventCallbacks(&callbacks, sizeof(callbacks)); 51 JvmtiErrorToException(env, jvmti_env, ret); 52 } 53 54 extern "C" JNIEXPORT void JNICALL Java_art_Test908_enableGcTracking(JNIEnv* env, 55 jclass klass ATTRIBUTE_UNUSED, 56 jboolean enable) { 57 jvmtiError ret = jvmti_env->SetEventNotificationMode( 58 enable ? JVMTI_ENABLE : JVMTI_DISABLE, 59 JVMTI_EVENT_GARBAGE_COLLECTION_START, 60 nullptr); 61 if (JvmtiErrorToException(env, jvmti_env, ret)) { 62 return; 63 } 64 ret = jvmti_env->SetEventNotificationMode( 65 enable ? JVMTI_ENABLE : JVMTI_DISABLE, 66 JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, 67 nullptr); 68 if (JvmtiErrorToException(env, jvmti_env, ret)) { 69 return; 70 } 71 } 72 73 extern "C" JNIEXPORT jint JNICALL Java_art_Test908_getGcStarts(JNIEnv* env ATTRIBUTE_UNUSED, 74 jclass klass ATTRIBUTE_UNUSED) { 75 jint result = static_cast<jint>(starts); 76 starts = 0; 77 return result; 78 } 79 80 extern "C" JNIEXPORT jint JNICALL Java_art_Test908_getGcFinishes(JNIEnv* env ATTRIBUTE_UNUSED, 81 jclass klass ATTRIBUTE_UNUSED) { 82 jint result = static_cast<jint>(finishes); 83 finishes = 0; 84 return result; 85 } 86 87 } // namespace Test908GcStartFinish 88 } // namespace art 89
