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/*
* 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 Test903HelloTagging {
extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test903_getTaggedObjects(
JNIEnv* env, jclass, jlongArray searchTags, jboolean returnObjects, jboolean returnTags) {
ScopedLongArrayRO scoped_array(env);
if (searchTags != nullptr) {
scoped_array.reset(searchTags);
}
const jlong* tag_ptr = scoped_array.get();
if (tag_ptr == nullptr) {
// Can never pass null.
tag_ptr = reinterpret_cast<const jlong*>(1);
}
jint result_count;
jobject* result_object_array;
jobject** result_object_array_ptr = returnObjects == JNI_TRUE ? &result_object_array : nullptr;
jlong* result_tag_array;
jlong** result_tag_array_ptr = returnTags == JNI_TRUE ? &result_tag_array : nullptr;
jvmtiError ret = jvmti_env->GetObjectsWithTags(scoped_array.size(),
tag_ptr,
&result_count,
result_object_array_ptr,
result_tag_array_ptr);
if (JvmtiErrorToException(env, jvmti_env, ret)) {
return nullptr;
}
CHECK_GE(result_count, 0);
ScopedLocalRef<jclass> obj_class(env, env->FindClass("java/lang/Object"));
if (obj_class.get() == nullptr) {
return nullptr;
}
jobjectArray resultObjectArray = nullptr;
if (returnObjects == JNI_TRUE) {
resultObjectArray = env->NewObjectArray(result_count, obj_class.get(), nullptr);
if (resultObjectArray == nullptr) {
return nullptr;
}
for (jint i = 0; i < result_count; ++i) {
env->SetObjectArrayElement(resultObjectArray, i, result_object_array[i]);
}
}
jlongArray resultTagArray = nullptr;
if (returnTags == JNI_TRUE) {
resultTagArray = env->NewLongArray(result_count);
env->SetLongArrayRegion(resultTagArray, 0, result_count, result_tag_array);
}
jobject count_integer;
{
ScopedLocalRef<jclass> integer_class(env, env->FindClass("java/lang/Integer"));
jmethodID methodID = env->GetMethodID(integer_class.get(), "<init>", "(I)V");
count_integer = env->NewObject(integer_class.get(), methodID, result_count);
if (count_integer == nullptr) {
return nullptr;
}
}
jobjectArray resultArray = env->NewObjectArray(3, obj_class.get(), nullptr);
if (resultArray == nullptr) {
return nullptr;
}
env->SetObjectArrayElement(resultArray, 0, resultObjectArray);
env->SetObjectArrayElement(resultArray, 1, resultTagArray);
env->SetObjectArrayElement(resultArray, 2, count_integer);
return resultArray;
}
static jvmtiEnv* CreateJvmtiEnv(JNIEnv* env) {
JavaVM* jvm;
CHECK_EQ(0, env->GetJavaVM(&jvm));
jvmtiEnv* new_jvmti_env;
CHECK_EQ(0, jvm->GetEnv(reinterpret_cast<void**>(&new_jvmti_env), JVMTI_VERSION_1_0));
jvmtiCapabilities capa;
memset(&capa, 0, sizeof(jvmtiCapabilities));
capa.can_tag_objects = 1;
jvmtiError error = new_jvmti_env->AddCapabilities(&capa);
CHECK_EQ(JVMTI_ERROR_NONE, error);
return new_jvmti_env;
}
static void SetTag(jvmtiEnv* env, jobject obj, jlong tag) {
jvmtiError ret = env->SetTag(obj, tag);
CHECK_EQ(JVMTI_ERROR_NONE, ret);
}
static jlong GetTag(jvmtiEnv* env, jobject obj) {
jlong tag;
jvmtiError ret = env->GetTag(obj, &tag);
CHECK_EQ(JVMTI_ERROR_NONE, ret);
return tag;
}
extern "C" JNIEXPORT jlongArray JNICALL Java_art_Test903_testTagsInDifferentEnvs(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject obj, jlong base_tag, jint count) {
std::unique_ptr<jvmtiEnv*[]> envs = std::unique_ptr<jvmtiEnv*[]>(new jvmtiEnv*[count]);
envs[0] = jvmti_env;
for (int32_t i = 1; i != count; ++i) {
envs[i] = CreateJvmtiEnv(env);
}
for (int32_t i = 0; i != count; ++i) {
SetTag(envs[i], obj, base_tag + i);
}
std::unique_ptr<jlong[]> vals = std::unique_ptr<jlong[]>(new jlong[count]);
for (int32_t i = 0; i != count; ++i) {
vals[i] = GetTag(envs[i], obj);
}
for (int32_t i = 1; i != count; ++i) {
CHECK_EQ(JVMTI_ERROR_NONE, envs[i]->DisposeEnvironment());
}
jlongArray res = env->NewLongArray(count);
if (res == nullptr) {
return nullptr;
}
env->SetLongArrayRegion(res, 0, count, vals.get());
return res;
}
} // namespace Test903HelloTagging
} // namespace art
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