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
GarbageCollectionFinish(jvmtiEnv * ti_env ATTRIBUTE_UNUSED)35 static void JNICALL GarbageCollectionFinish(jvmtiEnv* ti_env ATTRIBUTE_UNUSED) {
36 finishes++;
37 }
38
GarbageCollectionStart(jvmtiEnv * ti_env ATTRIBUTE_UNUSED)39 static void JNICALL GarbageCollectionStart(jvmtiEnv* ti_env ATTRIBUTE_UNUSED) {
40 starts++;
41 }
42
Java_art_Test908_setupGcCallback(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED)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
Java_art_Test908_enableGcTracking(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jboolean enable)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
Java_art_Test908_getGcStarts(JNIEnv * env ATTRIBUTE_UNUSED,jclass klass ATTRIBUTE_UNUSED)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
Java_art_Test908_getGcFinishes(JNIEnv * env ATTRIBUTE_UNUSED,jclass klass ATTRIBUTE_UNUSED)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