drlvm/src/test/regression/H3894/ThreadGroupChildren.cpp - harmony - Git at Google

 /*
  *  Licensed to the Apache Software Foundation (ASF) under one or more
  *  contributor license agreements.  See the NOTICE file distributed with
  *  this work for additional information regarding copyright ownership.
  *  The ASF licenses this file to You 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.
  */

 /**
  * Test case for GetThreadGroupChildren() jvmti function.
  * Checks that the function may report more than 10 child theads.
  * Checks that the function reports the same thread group children that were
  * added by java application.
  */

 #include <iostream>
 #include <jvmti.h>

 using namespace std;

 #define PACKAGE "org/apache/harmony/drlvm/tests/regression/h3894/"

 static const char* EXCEPTION_CLASS = "L" PACKAGE "InvokeAgentException;";

 #define TURN_EVENT(event, state) { \
     jvmtiError err = turn_event(jvmti, event, state, #event); \
     if (JVMTI_ERROR_NONE != err) return; \
 }

 #define CHECK_RESULT(func) \
     if (JVMTI_ERROR_NONE != err) { \
         cerr << "[JvmtiAgent] ERROR: " << #func << " failed with error: " << err << endl;  \
         return; \
     }

 #define CHECK_JNI3(result, func, error_code) { \
     if (jni->ExceptionCheck()) { \
         cerr << "[JvmtiAgent] ERROR: unexpected exception in " << #func << endl;  \
         jni->ExceptionDescribe(); \
         return error_code; \
     } \
     if (! (result)) { \
         cerr << "[JvmtiAgent] ERROR: get NULL in " << #func << endl;  \
         return error_code; \
     } \
 }

 #define CHECK_JNI(result, func) CHECK_JNI3(result, func, )

 static void set_passed_state(JNIEnv* jni)
 {
     cerr << endl << "TEST PASSED" << endl << endl;

     jclass cl = jni->FindClass(PACKAGE "Status");
     CHECK_JNI(cl, FindClass);

     jfieldID testGroup_field = jni->GetStaticFieldID(cl, "status", "Z");
     CHECK_JNI(testGroup_field, GetStaticFieldID);

     jni->SetStaticBooleanField(cl, testGroup_field, JNI_TRUE);
     CHECK_JNI(true, SetStaticBooleanField);
 }

 static jvmtiError turn_event(jvmtiEnv* jvmti, jvmtiEvent event, bool state,
         const char* event_name)
 {
     jvmtiError err;
     err = jvmti->SetEventNotificationMode(state ? JVMTI_ENABLE : JVMTI_DISABLE,
             event, NULL);
     if (JVMTI_ERROR_NONE != err) {
         cerr << "[JvmtiAgent] ERROR: unable to " << (state ? "en" : "dis")
                 << "able " << event_name
                 << endl;
     }

     return err;
 }

 static void JNICALL VMInit(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread)
 {
     cerr << endl << "==> VM Init callback" << endl;

     TURN_EVENT(JVMTI_EVENT_EXCEPTION, true);
 }

 static bool check_array(jvmtiEnv* jvmti,
                               JNIEnv* jni,
                               jobject* array,
                               int array_length,
                               jobject object,
                               jclass clazz,
                               const char* field_name,
                               const char* field_sig)
 {
     jfieldID field = jni->GetFieldID(clazz, field_name, field_sig);
     CHECK_JNI3(field, GetFieldID, false);

     jobjectArray expected = jni->GetObjectField(object, field);
     CHECK_JNI3(expected, GetObjectField, false);

     jint expected_length = jni->GetArrayLength(expected);
     CHECK_JNI3(expected_length, GetArrayLength, false);

     cerr << "Array length:   \t" << array_length << endl
             << "Expected length:\t" << expected_length << endl;

     if (array_length != expected_length) {
         cerr << "Array length doesn't match expected" << endl;
         return false;
     }

     for (jint j = 0; j < expected_length; j++) {
         jobject entry = jni->GetObjectArrayElement(expected, j);
         CHECK_JNI3(entry, GetObjectArrayElement, false);

         bool found = false;
         for (int i = 0; i < array_length; i++) {
             jboolean is_same = jni->IsSameObject(entry, array[i]);
             CHECK_JNI3(true, IsSameObject, false);

             if (is_same)
                 found = ! found;
         }

         if (! found) {
             cerr << "Expected element not found" << endl;
             return false;
         }

     }

     return true;

 }

 static void JNICALL
 Exception(jvmtiEnv *jvmti,
             JNIEnv* jni,
             jthread thread,
             jmethodID method,
             jlocation location,
             jobject exception,
             jmethodID catch_method,
             jlocation catch_location)
 {
     jvmtiError err;

     jclass exn_class = jni->GetObjectClass(exception);
     CHECK_JNI(exn_class, GetObjectClass);

     char* class_name = NULL;
     err = jvmti->GetClassSignature(exn_class, &class_name, NULL);
     CHECK_RESULT(GetClassSignature);

     if (0 != strcmp(EXCEPTION_CLASS, class_name))
         return;

     cerr << endl << "==> Exception callback" << endl;
     cerr << "    for class: " << class_name << endl;

     TURN_EVENT(JVMTI_EVENT_EXCEPTION, false);

     jfieldID testGroup_field = jni->GetFieldID(exn_class, "testGroup",
             "Ljava/lang/ThreadGroup;");
     CHECK_JNI(testGroup_field, GetFieldID);

     jthreadGroup group = jni->GetObjectField(exception, testGroup_field);
     CHECK_JNI(group, GetObjectField);

     jint thread_count;
     jthread* threads;
     jint group_count;
     jthreadGroup* groups;

     err = jvmti->GetThreadGroupChildren(group, &thread_count, &threads,
             &group_count, &groups);
     CHECK_RESULT(GetThreadGroupChildren);

     cerr << endl << "Child threads:" << endl;
     for (int i = 0; i < thread_count; i++) {
         jvmtiThreadInfo info;

         err = jvmti->GetThreadInfo(threads[i], &info);
         CHECK_RESULT(GetThreadInfo);

         cerr << i << ":\t" << info.name << endl;
     }

     cerr << endl << "Child groups:" << endl;
     for (int i = 0; i < group_count; i++) {
         jvmtiThreadGroupInfo info;

         err = jvmti->GetThreadGroupInfo(groups[i], &info);
         CHECK_RESULT(GetThreadDroupInfo);

         cerr << i << ":\t" << info.name << endl;
     }

     cerr << endl << "Checking threads..." << endl;
     if (! check_array(jvmti, jni, threads, thread_count, exception, exn_class,
             "childThreads", "[Ljava/lang/Thread;")) {
         return;
     }

     cerr << endl << "Checking groups..." << endl;
     if (! check_array(jvmti, jni, groups, group_count, exception, exn_class,
             "childGroups", "[Ljava/lang/ThreadGroup;")) {
         return;
     }


     set_passed_state(jni);
 }

 JNIEXPORT jint JNICALL Agent_OnLoad(JavaVM *vm, char *options, void *reserved)
 {
     jvmtiEnv *jvmti = NULL;
     jvmtiError err;

     // Get JVMTI interface pointer
     jint iRes = vm->GetEnv((void**)&jvmti, JVMTI_VERSION);
     if (JNI_OK != iRes) {
         cerr << "[JvmtiAgent] ERROR: unable to get JVMTI environment" << endl;
         return -1;
     }

     // Set events callbacks
     jvmtiEventCallbacks callbacks;
     memset(&callbacks, 0, sizeof(jvmtiEventCallbacks));

     callbacks.VMInit = VMInit;
     callbacks.Exception = Exception;

     err = jvmti->SetEventCallbacks(&callbacks, sizeof(jvmtiEventCallbacks));
     if (JVMTI_ERROR_NONE != err) {
         cerr << "[JvmtiAgent] ERROR: unable to register event callbacks" << endl;
         return -1;
     }

     err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
             JVMTI_EVENT_VM_INIT, NULL);
     if (JVMTI_ERROR_NONE != err) {
         cerr << "[JvmtiAgent] ERROR: unable to enable VMInit event"
                 << endl;
         return -1;
     }

     // Set capabilities
     jvmtiCapabilities capabilities;
     memset(&capabilities, 0, sizeof(jvmtiCapabilities));
     capabilities.can_generate_exception_events = 1;

     err = jvmti->AddCapabilities(&capabilities);
     if (JVMTI_ERROR_NONE != err) {
         cerr << "[JvmtiAgent] ERROR: unable to possess capabilities" << endl;
         return -1;
     }

     // Agent initialized successfully
     return 0;
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You 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.
	*/

	/**
	* Test case for GetThreadGroupChildren() jvmti function.
	* Checks that the function may report more than 10 child theads.
	* Checks that the function reports the same thread group children that were
	* added by java application.
	*/

	#include <iostream>
	#include <jvmti.h>

	using namespace std;

	#define PACKAGE "org/apache/harmony/drlvm/tests/regression/h3894/"

	static const char* EXCEPTION_CLASS = "L" PACKAGE "InvokeAgentException;";

	#define TURN_EVENT(event, state) { \
	jvmtiError err = turn_event(jvmti, event, state, #event); \
	if (JVMTI_ERROR_NONE != err) return; \
	}

	#define CHECK_RESULT(func) \
	if (JVMTI_ERROR_NONE != err) { \
	cerr << "[JvmtiAgent] ERROR: " << #func << " failed with error: " << err << endl; \
	return; \
	}

	#define CHECK_JNI3(result, func, error_code) { \
	if (jni->ExceptionCheck()) { \
	cerr << "[JvmtiAgent] ERROR: unexpected exception in " << #func << endl; \
	jni->ExceptionDescribe(); \
	return error_code; \
	} \
	if (! (result)) { \
	cerr << "[JvmtiAgent] ERROR: get NULL in " << #func << endl; \
	return error_code; \
	} \
	}

	#define CHECK_JNI(result, func) CHECK_JNI3(result, func, )

	static void set_passed_state(JNIEnv* jni)
	{
	cerr << endl << "TEST PASSED" << endl << endl;

	jclass cl = jni->FindClass(PACKAGE "Status");
	CHECK_JNI(cl, FindClass);

	jfieldID testGroup_field = jni->GetStaticFieldID(cl, "status", "Z");
	CHECK_JNI(testGroup_field, GetStaticFieldID);

	jni->SetStaticBooleanField(cl, testGroup_field, JNI_TRUE);
	CHECK_JNI(true, SetStaticBooleanField);
	}

	static jvmtiError turn_event(jvmtiEnv* jvmti, jvmtiEvent event, bool state,
	const char* event_name)
	{
	jvmtiError err;
	err = jvmti->SetEventNotificationMode(state ? JVMTI_ENABLE : JVMTI_DISABLE,
	event, NULL);
	if (JVMTI_ERROR_NONE != err) {
	cerr << "[JvmtiAgent] ERROR: unable to " << (state ? "en" : "dis")
	<< "able " << event_name
	<< endl;
	}

	return err;
	}

	static void JNICALL VMInit(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread)
	{
	cerr << endl << "==> VM Init callback" << endl;

	TURN_EVENT(JVMTI_EVENT_EXCEPTION, true);
	}

	static bool check_array(jvmtiEnv* jvmti,
	JNIEnv* jni,
	jobject* array,
	int array_length,
	jobject object,
	jclass clazz,
	const char* field_name,
	const char* field_sig)
	{
	jfieldID field = jni->GetFieldID(clazz, field_name, field_sig);
	CHECK_JNI3(field, GetFieldID, false);

	jobjectArray expected = jni->GetObjectField(object, field);
	CHECK_JNI3(expected, GetObjectField, false);

	jint expected_length = jni->GetArrayLength(expected);
	CHECK_JNI3(expected_length, GetArrayLength, false);

	cerr << "Array length: \t" << array_length << endl
	<< "Expected length:\t" << expected_length << endl;

	if (array_length != expected_length) {
	cerr << "Array length doesn't match expected" << endl;
	return false;
	}

	for (jint j = 0; j < expected_length; j++) {
	jobject entry = jni->GetObjectArrayElement(expected, j);
	CHECK_JNI3(entry, GetObjectArrayElement, false);

	bool found = false;
	for (int i = 0; i < array_length; i++) {
	jboolean is_same = jni->IsSameObject(entry, array[i]);
	CHECK_JNI3(true, IsSameObject, false);

	if (is_same)
	found = ! found;
	}

	if (! found) {
	cerr << "Expected element not found" << endl;
	return false;
	}

	}

	return true;

	}

	static void JNICALL
	Exception(jvmtiEnv *jvmti,
	JNIEnv* jni,
	jthread thread,
	jmethodID method,
	jlocation location,
	jobject exception,
	jmethodID catch_method,
	jlocation catch_location)
	{
	jvmtiError err;

	jclass exn_class = jni->GetObjectClass(exception);
	CHECK_JNI(exn_class, GetObjectClass);

	char* class_name = NULL;
	err = jvmti->GetClassSignature(exn_class, &class_name, NULL);
	CHECK_RESULT(GetClassSignature);

	if (0 != strcmp(EXCEPTION_CLASS, class_name))
	return;

	cerr << endl << "==> Exception callback" << endl;
	cerr << " for class: " << class_name << endl;

	TURN_EVENT(JVMTI_EVENT_EXCEPTION, false);

	jfieldID testGroup_field = jni->GetFieldID(exn_class, "testGroup",
	"Ljava/lang/ThreadGroup;");
	CHECK_JNI(testGroup_field, GetFieldID);

	jthreadGroup group = jni->GetObjectField(exception, testGroup_field);
	CHECK_JNI(group, GetObjectField);

	jint thread_count;
	jthread* threads;
	jint group_count;
	jthreadGroup* groups;

	err = jvmti->GetThreadGroupChildren(group, &thread_count, &threads,
	&group_count, &groups);
	CHECK_RESULT(GetThreadGroupChildren);

	cerr << endl << "Child threads:" << endl;
	for (int i = 0; i < thread_count; i++) {
	jvmtiThreadInfo info;

	err = jvmti->GetThreadInfo(threads[i], &info);
	CHECK_RESULT(GetThreadInfo);

	cerr << i << ":\t" << info.name << endl;
	}

	cerr << endl << "Child groups:" << endl;
	for (int i = 0; i < group_count; i++) {
	jvmtiThreadGroupInfo info;

	err = jvmti->GetThreadGroupInfo(groups[i], &info);
	CHECK_RESULT(GetThreadDroupInfo);

	cerr << i << ":\t" << info.name << endl;
	}

	cerr << endl << "Checking threads..." << endl;
	if (! check_array(jvmti, jni, threads, thread_count, exception, exn_class,
	"childThreads", "[Ljava/lang/Thread;")) {
	return;
	}

	cerr << endl << "Checking groups..." << endl;
	if (! check_array(jvmti, jni, groups, group_count, exception, exn_class,
	"childGroups", "[Ljava/lang/ThreadGroup;")) {
	return;
	}


	set_passed_state(jni);
	}

	JNIEXPORT jint JNICALL Agent_OnLoad(JavaVM vm, char options, void *reserved)
	{
	jvmtiEnv *jvmti = NULL;
	jvmtiError err;

	// Get JVMTI interface pointer
	jint iRes = vm->GetEnv((void**)&jvmti, JVMTI_VERSION);
	if (JNI_OK != iRes) {
	cerr << "[JvmtiAgent] ERROR: unable to get JVMTI environment" << endl;
	return -1;
	}

	// Set events callbacks
	jvmtiEventCallbacks callbacks;
	memset(&callbacks, 0, sizeof(jvmtiEventCallbacks));

	callbacks.VMInit = VMInit;
	callbacks.Exception = Exception;

	err = jvmti->SetEventCallbacks(&callbacks, sizeof(jvmtiEventCallbacks));
	if (JVMTI_ERROR_NONE != err) {
	cerr << "[JvmtiAgent] ERROR: unable to register event callbacks" << endl;
	return -1;
	}

	err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
	JVMTI_EVENT_VM_INIT, NULL);
	if (JVMTI_ERROR_NONE != err) {
	cerr << "[JvmtiAgent] ERROR: unable to enable VMInit event"
	<< endl;
	return -1;
	}

	// Set capabilities
	jvmtiCapabilities capabilities;
	memset(&capabilities, 0, sizeof(jvmtiCapabilities));
	capabilities.can_generate_exception_events = 1;

	err = jvmti->AddCapabilities(&capabilities);
	if (JVMTI_ERROR_NONE != err) {
	cerr << "[JvmtiAgent] ERROR: unable to possess capabilities" << endl;
	return -1;
	}

	// Agent initialized successfully
	return 0;
	}