/*
* 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 <mutex>
#include <vector>
#include "android-base/macros.h"
#include "android-base/stringprintf.h"
#include "jni.h"
#include "jvmti.h"
// Test infrastructure
#include "jni_helper.h"
#include "jvmti_helper.h"
#include "scoped_local_ref.h"
#include "scoped_utf_chars.h"
#include "test_env.h"
namespace art {
namespace Test912ArtClasses {
static void EnableEvents(JNIEnv* env,
jboolean enable,
decltype(jvmtiEventCallbacks().ClassLoad) class_load,
decltype(jvmtiEventCallbacks().ClassPrepare) class_prepare) {
if (enable == JNI_FALSE) {
jvmtiError ret = jvmti_env->SetEventNotificationMode(JVMTI_DISABLE,
JVMTI_EVENT_CLASS_LOAD,
nullptr);
if (JvmtiErrorToException(env, jvmti_env, ret)) {
return ;
}
ret = jvmti_env->SetEventNotificationMode(JVMTI_DISABLE,
JVMTI_EVENT_CLASS_PREPARE,
nullptr);
JvmtiErrorToException(env, jvmti_env, ret);
return ;
}
jvmtiEventCallbacks callbacks;
memset(&callbacks, 0 , sizeof (jvmtiEventCallbacks));
callbacks.ClassLoad = class_load;
callbacks.ClassPrepare = class_prepare;
jvmtiError ret = jvmti_env->SetEventCallbacks(&callbacks, sizeof (callbacks));
if (JvmtiErrorToException(env, jvmti_env, ret)) {
return ;
}
ret = jvmti_env->SetEventNotificationMode(JVMTI_ENABLE,
JVMTI_EVENT_CLASS_LOAD,
nullptr);
if (JvmtiErrorToException(env, jvmti_env, ret)) {
return ;
}
ret = jvmti_env->SetEventNotificationMode(JVMTI_ENABLE,
JVMTI_EVENT_CLASS_PREPARE,
nullptr);
JvmtiErrorToException(env, jvmti_env, ret);
}
struct ClassLoadSeen {
static void JNICALL ClassLoadSeenCallback([[maybe_unused]] jvmtiEnv* jenv,
[[maybe_unused]] JNIEnv* jni_env,
[[maybe_unused]] jthread thread,
[[maybe_unused]] jclass klass) {
saw_event = true ;
}
static bool saw_event;
};
bool ClassLoadSeen::saw_event = false ;
extern "C" JNIEXPORT void JNICALL Java_art_Test912Art_enableClassLoadSeenEvents(
JNIEnv* env, [[maybe_unused]] jclass Main_klass, jboolean b) {
EnableEvents(env, b, ClassLoadSeen::ClassLoadSeenCallback, nullptr);
}
extern "C" JNIEXPORT jboolean JNICALL Java_art_Test912Art_hadLoadEvent(
[[maybe_unused]] JNIEnv* env, [[maybe_unused]] jclass Main_klass) {
return ClassLoadSeen::saw_event ? JNI_TRUE : JNI_FALSE;
}
extern "C" JNIEXPORT jboolean JNICALL Java_art_Test912Art_isLoadedClass(
JNIEnv* env, [[maybe_unused]] jclass Main_klass, jstring class_name) {
ScopedUtfChars name(env, class_name);
jint class_count;
jclass* classes;
jvmtiError res = jvmti_env->GetLoadedClasses(&class_count, &classes);
if (JvmtiErrorToException(env, jvmti_env, res)) {
return JNI_FALSE;
}
bool found = false ;
for (jint i = 0 ; !found && i < class_count; ++i) {
char * sig;
jvmtiError res2 = jvmti_env->GetClassSignature(classes[i], &sig, nullptr);
if (JvmtiErrorToException(env, jvmti_env, res2)) {
return JNI_FALSE;
}
found = strcmp(name.c_str(), sig) == 0 ;
CheckJvmtiError(jvmti_env, jvmti_env->Deallocate(reinterpret_cast <unsigned char *>(sig)));
}
CheckJvmtiError(jvmti_env, jvmti_env->Deallocate(reinterpret_cast <unsigned char *>(classes)));
return found;
}
// We use the implementations from runtime_state.cc.
extern "C" JNIEXPORT void JNICALL Java_Main_ensureJitCompiled(JNIEnv* env,
jclass,
jclass cls,
jstring method_name);
extern "C" JNIEXPORT jboolean JNICALL Java_Main_hasJit(JNIEnv*, jclass);
extern "C" JNIEXPORT void JNICALL Java_art_Test912Art_ensureJitCompiled(
JNIEnv* env, jclass klass, jclass test_class, jstring name) {
Java_Main_ensureJitCompiled(env, klass, test_class, name);
}
extern "C" JNIEXPORT jboolean JNICALL Java_art_Test912Art_hasJit(JNIEnv* env, jclass klass) {
return Java_Main_hasJit(env, klass);
}
} // namespace Test912ArtClasses
} // namespace art
Messung V0.5 in Prozent C=87 H=92 G=89
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-29)
¤
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