/*
* 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 <pthread.h>
#include <cstdio>
#include <iostream>
#include <vector>
#include "android-base/logging.h"
#include "jni.h"
#include "jvmti.h"
#include "scoped_local_ref.h"
#include "scoped_primitive_array.h"
// Test infrastructure
#include "jvmti_helper.h"
#include "test_env.h"
namespace art {
namespace Test1922OwnedMonitors {
static bool doMonitorEnter(JNIEnv* env, jobject target) {
return env->MonitorEnter(target) != 0 ;
}
static bool doMonitorExit(JNIEnv* env, jobject target) {
return env->MonitorExit(target) != 0 ;
}
static bool doCallRunnable(JNIEnv* env, jobject next) {
ScopedLocalRef<jclass> run_class(env, env->FindClass("java/lang/Runnable" ));
if (run_class.get() == nullptr) {
return true ;
}
jmethodID run = env->GetMethodID(run_class.get(), "run" , "()V" );
if (env->ExceptionCheck()) {
return true ;
}
env->CallVoidMethod(next, run);
return env->ExceptionCheck();
}
extern "C" JNIEXPORT void JNICALL Java_art_Test1922_00024Target_lockThisNative(
JNIEnv* env, jobject thiz, jobject next) {
if (doMonitorEnter(env, thiz)) {
return ;
}
if (doCallRunnable(env, next)) {
return ;
}
if (doMonitorExit(env, thiz)) {
return ;
}
}
extern "C" JNIEXPORT void JNICALL Java_art_Test1922_00024Target_lockNative(
JNIEnv* env, [[maybe_unused]] jobject thiz, jobject mon, jobject next) {
if (doMonitorEnter(env, mon)) {
return ;
}
if (doCallRunnable(env, next)) {
return ;
}
if (doMonitorExit(env, mon)) {
return ;
}
}
extern "C" JNIEXPORT void JNICALL Java_art_Test1922_setupTest(JNIEnv* env, jclass) {
jvmtiCapabilities caps;
memset(&caps, 0 , sizeof (caps));
caps.can_get_owned_monitor_info = 1 ;
caps.can_get_owned_monitor_stack_depth_info = 1 ;
JvmtiErrorToException(env, jvmti_env, jvmti_env->AddCapabilities(&caps));
}
extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test1922_getOwnedMonitorStackDepthInfo(
JNIEnv* env, jclass, jthread thread) {
jint len = 0 ;
jvmtiMonitorStackDepthInfo* monitors = nullptr;
if (JvmtiErrorToException(
env, jvmti_env, jvmti_env->GetOwnedMonitorStackDepthInfo(thread, &len, &monitors))) {
return nullptr;
}
ScopedLocalRef<jclass> ret_class(env, env->FindClass("art/Test1922$MonitorStackDepthInfo" ));
if (ret_class.get() == nullptr) {
// CNFE should be pending.
return nullptr;
}
jmethodID constructor = env->GetMethodID(ret_class.get(), "<init>" , "(ILjava/lang/Object;)V" );
if (env->ExceptionCheck()) {
return nullptr;
}
return CreateObjectArray(env, len, "art/Test1922$MonitorStackDepthInfo" ,
[&](jint i) {
return env->NewObject(ret_class.get(),
constructor,
monitors[i].stack_depth,
monitors[i].monitor);
});
}
extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test1922_getOwnedMonitors(JNIEnv* env,
jclass,
jthread thread) {
jint len = 0 ;
jobject* arr = nullptr;
if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetOwnedMonitorInfo(thread, &len, &arr))) {
return nullptr;
}
ScopedLocalRef<jclass> obj_class(env, env->FindClass("java/lang/Object" ));
if (obj_class.get() == nullptr) {
// CNFE should be pending.
return nullptr;
}
jobjectArray ret = env->NewObjectArray(len, obj_class.get(), nullptr);
if (ret == nullptr) {
return nullptr;
}
for (jint i = 0 ; i < len; i++) {
env->SetObjectArrayElement(ret, i, arr[i]);
if (env->ExceptionCheck()) {
return nullptr;
}
}
return ret;
}
} // namespace Test1922OwnedMonitors
} // namespace art
Messung V0.5 in Prozent C=86 H=94 G=89
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-29)
¤
*© Formatika GbR, Deutschland