/*
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* Copyright (c) 1998, 2005, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "util.h"
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#include "ObjectReferenceImpl.h"
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#include "commonRef.h"
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#include "inStream.h"
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#include "outStream.h"
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static jboolean
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referenceType(PacketInputStream *in, PacketOutputStream *out)
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{
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JNIEnv *env;
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jobject object;
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env = getEnv();
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object = inStream_readObjectRef(env, in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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WITH_LOCAL_REFS(env, 1) {
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jbyte tag;
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jclass clazz;
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clazz = JNI_FUNC_PTR(env,GetObjectClass)(env, object);
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tag = referenceTypeTag(clazz);
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(void)outStream_writeByte(out, tag);
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(void)outStream_writeObjectRef(env, out, clazz);
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} END_WITH_LOCAL_REFS(env);
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return JNI_TRUE;
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}
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static jboolean
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getValues(PacketInputStream *in, PacketOutputStream *out)
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{
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sharedGetFieldValues(in, out, JNI_FALSE);
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return JNI_TRUE;
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}
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static jvmtiError
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readFieldValue(JNIEnv *env, PacketInputStream *in, jclass clazz,
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jobject object, jfieldID field, char *signature)
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{
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jvalue value;
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jvmtiError error;
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switch (signature[0]) {
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case JDWP_TAG(ARRAY):
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case JDWP_TAG(OBJECT):
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value.l = inStream_readObjectRef(env, in);
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JNI_FUNC_PTR(env,SetObjectField)(env, object, field, value.l);
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break;
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case JDWP_TAG(BYTE):
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value.b = inStream_readByte(in);
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JNI_FUNC_PTR(env,SetByteField)(env, object, field, value.b);
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break;
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case JDWP_TAG(CHAR):
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value.c = inStream_readChar(in);
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JNI_FUNC_PTR(env,SetCharField)(env, object, field, value.c);
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break;
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case JDWP_TAG(FLOAT):
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value.f = inStream_readFloat(in);
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JNI_FUNC_PTR(env,SetFloatField)(env, object, field, value.f);
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break;
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case JDWP_TAG(DOUBLE):
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value.d = inStream_readDouble(in);
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JNI_FUNC_PTR(env,SetDoubleField)(env, object, field, value.d);
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break;
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case JDWP_TAG(INT):
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value.i = inStream_readInt(in);
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JNI_FUNC_PTR(env,SetIntField)(env, object, field, value.i);
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break;
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case JDWP_TAG(LONG):
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value.j = inStream_readLong(in);
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JNI_FUNC_PTR(env,SetLongField)(env, object, field, value.j);
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break;
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case JDWP_TAG(SHORT):
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value.s = inStream_readShort(in);
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JNI_FUNC_PTR(env,SetShortField)(env, object, field, value.s);
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break;
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case JDWP_TAG(BOOLEAN):
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value.z = inStream_readBoolean(in);
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JNI_FUNC_PTR(env,SetBooleanField)(env, object, field, value.z);
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break;
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}
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error = JVMTI_ERROR_NONE;
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if (JNI_FUNC_PTR(env,ExceptionOccurred)(env)) {
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error = AGENT_ERROR_JNI_EXCEPTION;
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}
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return error;
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}
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static jboolean
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setValues(PacketInputStream *in, PacketOutputStream *out)
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{
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JNIEnv *env;
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jint count;
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jvmtiError error;
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jobject object;
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env = getEnv();
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object = inStream_readObjectRef(env, in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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count = inStream_readInt(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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error = JVMTI_ERROR_NONE;
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WITH_LOCAL_REFS(env, count + 1) {
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jclass clazz;
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clazz = JNI_FUNC_PTR(env,GetObjectClass)(env, object);
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if (clazz != NULL ) {
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int i;
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for (i = 0; (i < count) && !inStream_error(in); i++) {
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jfieldID field;
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char *signature = NULL;
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field = inStream_readFieldID(in);
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if (inStream_error(in))
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break;
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error = fieldSignature(clazz, field, NULL, &signature, NULL);
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if (error != JVMTI_ERROR_NONE) {
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break;
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}
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error = readFieldValue(env, in, clazz, object, field, signature);
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jvmtiDeallocate(signature);
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if (error != JVMTI_ERROR_NONE) {
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break;
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}
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}
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}
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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}
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} END_WITH_LOCAL_REFS(env);
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return JNI_TRUE;
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}
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static jboolean
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monitorInfo(PacketInputStream *in, PacketOutputStream *out)
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{
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JNIEnv *env;
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jobject object;
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env = getEnv();
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object = inStream_readObjectRef(env, in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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WITH_LOCAL_REFS(env, 1) {
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jvmtiError error;
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jvmtiMonitorUsage info;
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(void)memset(&info, 0, sizeof(info));
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error = JVMTI_FUNC_PTR(gdata->jvmti,GetObjectMonitorUsage)
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(gdata->jvmti, object, &info);
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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} else {
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int i;
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(void)outStream_writeObjectRef(env, out, info.owner);
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(void)outStream_writeInt(out, info.entry_count);
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(void)outStream_writeInt(out, info.waiter_count);
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for (i = 0; i < info.waiter_count; i++) {
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(void)outStream_writeObjectRef(env, out, info.waiters[i]);
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}
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}
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if (info.waiters != NULL )
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jvmtiDeallocate(info.waiters);
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} END_WITH_LOCAL_REFS(env);
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return JNI_TRUE;
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}
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static jboolean
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invokeInstance(PacketInputStream *in, PacketOutputStream *out)
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{
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return sharedInvoke(in, out);
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}
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static jboolean
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disableCollection(PacketInputStream *in, PacketOutputStream *out)
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{
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jlong id;
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jvmtiError error;
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id = inStream_readObjectID(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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error = commonRef_pin(id);
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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}
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return JNI_TRUE;
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}
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static jboolean
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enableCollection(PacketInputStream *in, PacketOutputStream *out)
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{
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jvmtiError error;
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jlong id;
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id = inStream_readObjectID(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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error = commonRef_unpin(id);
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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}
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return JNI_TRUE;
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}
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static jboolean
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isCollected(PacketInputStream *in, PacketOutputStream *out)
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{
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jobject ref;
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jlong id;
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JNIEnv *env;
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env = getEnv();
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id = inStream_readObjectID(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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if (id == NULL_OBJECT_ID) {
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outStream_setError(out, JDWP_ERROR(INVALID_OBJECT));
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return JNI_TRUE;
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}
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ref = commonRef_idToRef(env, id);
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(void)outStream_writeBoolean(out, (jboolean)(ref == NULL));
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commonRef_idToRef_delete(env, ref);
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return JNI_TRUE;
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}
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static jboolean
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referringObjects(PacketInputStream *in, PacketOutputStream *out)
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{
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jobject object;
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jint maxReferrers;
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JNIEnv *env;
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env = getEnv();
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if (gdata->vmDead) {
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outStream_setError(out, JDWP_ERROR(VM_DEAD));
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return JNI_TRUE;
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}
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object = inStream_readObjectRef(env,in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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maxReferrers = inStream_readInt(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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WITH_LOCAL_REFS(env, 1) {
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jvmtiError error;
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ObjectBatch referrerBatch;
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error = objectReferrers(object, &referrerBatch, maxReferrers);
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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} else {
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int kk;
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(void)outStream_writeInt(out, referrerBatch.count);
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for (kk = 0; kk < referrerBatch.count; kk++) {
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jobject ref;
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ref = referrerBatch.objects[kk];
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(void)outStream_writeByte(out, specificTypeKey(env, ref));
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(void)outStream_writeObjectRef(env, out, ref);
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}
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jvmtiDeallocate(referrerBatch.objects);
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}
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} END_WITH_LOCAL_REFS(env);
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return JNI_TRUE;
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}
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void *ObjectReference_Cmds[] = { (void *)10
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,(void *)referenceType
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,(void *)getValues
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,(void *)setValues
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,(void *)NULL /* no longer used */
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,(void *)monitorInfo
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,(void *)invokeInstance
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,(void *)disableCollection
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,(void *)enableCollection
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,(void *)isCollected
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,(void *)referringObjects
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};
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