/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "jvmti.h"
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// Test infrastructure
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#include "jvmti_helper.h"
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#include "nativehelper/scoped_local_ref.h"
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#include "nativehelper/scoped_primitive_array.h"
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#include "test_env.h"
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namespace art {
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namespace Test1940DdmExt {
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using DdmHandleChunk = jvmtiError(*)(jvmtiEnv* env,
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jint type_in,
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jint len_in,
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const jbyte* data_in,
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jint* type_out,
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jint* len_data_out,
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jbyte** data_out);
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struct DdmsTrackingData {
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DdmHandleChunk send_ddm_chunk;
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jclass test_klass;
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jmethodID publish_method;
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};
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template <typename T>
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static void Dealloc(T* t) {
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jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(t));
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}
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template <typename T, typename ...Rest>
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static void Dealloc(T* t, Rest... rs) {
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Dealloc(t);
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Dealloc(rs...);
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}
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extern "C" JNIEXPORT jobject JNICALL Java_art_Test1940_processChunk(JNIEnv* env,
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jclass,
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jobject chunk) {
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DdmsTrackingData* data = nullptr;
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if (JvmtiErrorToException(
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env, jvmti_env, jvmti_env->GetEnvironmentLocalStorage(reinterpret_cast<void**>(&data)))) {
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return nullptr;
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}
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CHECK(chunk != nullptr);
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CHECK(data != nullptr);
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CHECK(data->send_ddm_chunk != nullptr);
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ScopedLocalRef<jclass> chunk_class(env, env->FindClass("org/apache/harmony/dalvik/ddmc/Chunk"));
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if (env->ExceptionCheck()) {
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return nullptr;
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}
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jfieldID type_field_id = env->GetFieldID(chunk_class.get(), "type", "I");
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jfieldID offset_field_id = env->GetFieldID(chunk_class.get(), "offset", "I");
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jfieldID length_field_id = env->GetFieldID(chunk_class.get(), "length", "I");
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jfieldID data_field_id = env->GetFieldID(chunk_class.get(), "data", "[B");
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jint type = env->GetIntField(chunk, type_field_id);
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jint off = env->GetIntField(chunk, offset_field_id);
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jint len = env->GetIntField(chunk, length_field_id);
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ScopedLocalRef<jbyteArray> chunk_buf(
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env, reinterpret_cast<jbyteArray>(env->GetObjectField(chunk, data_field_id)));
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if (env->ExceptionCheck()) {
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return nullptr;
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}
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ScopedByteArrayRO byte_data(env, chunk_buf.get());
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jint out_type;
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jint out_size;
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jbyte* out_data;
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if (JvmtiErrorToException(env, jvmti_env, data->send_ddm_chunk(jvmti_env,
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type,
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len,
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&byte_data[off],
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/*out*/&out_type,
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/*out*/&out_size,
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/*out*/&out_data))) {
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return nullptr;
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} else {
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ScopedLocalRef<jbyteArray> chunk_data(env, env->NewByteArray(out_size));
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env->SetByteArrayRegion(chunk_data.get(), 0, out_size, out_data);
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Dealloc(out_data);
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ScopedLocalRef<jobject> res(env, env->NewObject(chunk_class.get(),
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env->GetMethodID(chunk_class.get(),
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"<init>",
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"(I[BII)V"),
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out_type,
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chunk_data.get(),
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0,
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out_size));
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return res.release();
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}
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}
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static void DeallocParams(jvmtiParamInfo* params, jint n_params) {
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for (jint i = 0; i < n_params; i++) {
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Dealloc(params[i].name);
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}
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}
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static void JNICALL PublishCB(jvmtiEnv* jvmti, JNIEnv* jnienv, jint type, jint size, jbyte* bytes) {
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DdmsTrackingData* data = nullptr;
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if (JvmtiErrorToException(jnienv, jvmti,
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jvmti->GetEnvironmentLocalStorage(reinterpret_cast<void**>(&data)))) {
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return;
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}
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ScopedLocalRef<jbyteArray> res(jnienv, jnienv->NewByteArray(size));
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jnienv->SetByteArrayRegion(res.get(), 0, size, bytes);
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jnienv->CallStaticVoidMethod(data->test_klass, data->publish_method, type, res.get());
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}
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extern "C" JNIEXPORT void JNICALL Java_art_Test1940_initializeTest(JNIEnv* env,
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jclass,
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jclass method_klass,
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jobject publish_method) {
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void* old_data = nullptr;
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if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetEnvironmentLocalStorage(&old_data))) {
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return;
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} else if (old_data != nullptr) {
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ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException"));
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env->ThrowNew(rt_exception.get(), "Environment already has local storage set!");
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return;
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}
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DdmsTrackingData* data = nullptr;
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if (JvmtiErrorToException(env,
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jvmti_env,
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jvmti_env->Allocate(sizeof(DdmsTrackingData),
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reinterpret_cast<unsigned char**>(&data)))) {
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return;
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}
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memset(data, 0, sizeof(DdmsTrackingData));
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data->test_klass = reinterpret_cast<jclass>(env->NewGlobalRef(method_klass));
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data->publish_method = env->FromReflectedMethod(publish_method);
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if (env->ExceptionCheck()) {
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return;
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}
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// Get the extensions.
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jint n_ext = 0;
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jvmtiExtensionFunctionInfo* infos = nullptr;
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if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetExtensionFunctions(&n_ext, &infos))) {
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return;
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}
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for (jint i = 0; i < n_ext; i++) {
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jvmtiExtensionFunctionInfo* cur_info = &infos[i];
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if (strcmp("com.android.art.internal.ddm.process_chunk", cur_info->id) == 0) {
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data->send_ddm_chunk = reinterpret_cast<DdmHandleChunk>(cur_info->func);
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}
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// Cleanup the cur_info
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DeallocParams(cur_info->params, cur_info->param_count);
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Dealloc(cur_info->id, cur_info->short_description, cur_info->params, cur_info->errors);
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}
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// Cleanup the array.
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Dealloc(infos);
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if (data->send_ddm_chunk == nullptr) {
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ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException"));
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env->ThrowNew(rt_exception.get(), "Unable to find memory tracking extensions.");
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return;
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}
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if (JvmtiErrorToException(env, jvmti_env, jvmti_env->SetEnvironmentLocalStorage(data))) {
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return;
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}
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jint event_index = -1;
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bool found_event = false;
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jvmtiExtensionEventInfo* events = nullptr;
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if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetExtensionEvents(&n_ext, &events))) {
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return;
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}
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for (jint i = 0; i < n_ext; i++) {
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jvmtiExtensionEventInfo* cur_info = &events[i];
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if (strcmp("com.android.art.internal.ddm.publish_chunk", cur_info->id) == 0) {
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found_event = true;
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event_index = cur_info->extension_event_index;
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}
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// Cleanup the cur_info
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DeallocParams(cur_info->params, cur_info->param_count);
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Dealloc(cur_info->id, cur_info->short_description, cur_info->params);
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}
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// Cleanup the array.
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Dealloc(events);
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if (!found_event) {
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ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException"));
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env->ThrowNew(rt_exception.get(), "Unable to find ddms extension event.");
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return;
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}
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JvmtiErrorToException(env,
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jvmti_env,
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jvmti_env->SetExtensionEventCallback(
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event_index, reinterpret_cast<jvmtiExtensionEvent>(PublishCB)));
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return;
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}
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} // namespace Test1940DdmExt
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} // namespace art
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