/*
* Copyright ( C ) 2013 The Android Open Source Project
*
* Licensed under the Apache License , Version 2 . 0 ( the " License " ) ;
* you may not use this file except in compliance with the License .
* You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
#include <stdio.h>
#include <string.h>
#include "android-base/macros.h"
#include "jni.h"
#include "jvmti.h"
// Test infrastructure
#include "jvmti_helper.h"
#include "test_env.h"
namespace art {
namespace Test908GcStartFinish {
static size_t starts = 0 ;
static size_t finishes = 0 ;
static void JNICALL GarbageCollectionFinish([[maybe_unused]] jvmtiEnv* ti_env) {
finishes++;
}
static void JNICALL GarbageCollectionStart([[maybe_unused]] jvmtiEnv* ti_env) {
starts++;
}
extern "C" JNIEXPORT void JNICALL Java_art_Test908_setupGcCallback(
JNIEnv* env, [[maybe_unused]] jclass klass) {
jvmtiEventCallbacks callbacks;
memset(&callbacks, 0 , sizeof (jvmtiEventCallbacks));
callbacks.GarbageCollectionFinish = GarbageCollectionFinish;
callbacks.GarbageCollectionStart = GarbageCollectionStart;
jvmtiError ret = jvmti_env->SetEventCallbacks(&callbacks, sizeof (callbacks));
JvmtiErrorToException(env, jvmti_env, ret);
}
extern "C" JNIEXPORT void JNICALL Java_art_Test908_enableGcTracking(JNIEnv* env,
[[maybe_unused]] jclass klass,
jboolean enable) {
jvmtiError ret = jvmti_env->SetEventNotificationMode(
enable ? JVMTI_ENABLE : JVMTI_DISABLE,
JVMTI_EVENT_GARBAGE_COLLECTION_START,
nullptr);
if (JvmtiErrorToException(env, jvmti_env, ret)) {
return ;
}
ret = jvmti_env->SetEventNotificationMode(
enable ? JVMTI_ENABLE : JVMTI_DISABLE,
JVMTI_EVENT_GARBAGE_COLLECTION_FINISH,
nullptr);
if (JvmtiErrorToException(env, jvmti_env, ret)) {
return ;
}
}
extern "C" JNIEXPORT jint JNICALL Java_art_Test908_getGcStarts([[maybe_unused]] JNIEnv* env,
[[maybe_unused]] jclass klass) {
jint result = static_cast <jint>(starts);
starts = 0 ;
return result;
}
extern "C" JNIEXPORT jint JNICALL Java_art_Test908_getGcFinishes([[maybe_unused]] JNIEnv* env,
[[maybe_unused]] jclass klass) {
jint result = static_cast <jint>(finishes);
finishes = 0 ;
return result;
}
} // namespace Test908GcStartFinish
} // namespace art
Messung V0.5 in Prozent C=95 H=94 G=94
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-06-29)
¤
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