/*
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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 "ArrayTypeImpl.h"
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#include "util.h"
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#include "inStream.h"
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#include "outStream.h"
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/*
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* Determine the component class by looking thru all classes for
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* one that has the signature of the component and the same class loadeer
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* as the array. See JVM spec 5.3.3:
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* If the component type is a reference type, C is marked as having
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* been defined by the defining class loader of the component type.
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*/
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static jdwpError
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getComponentClass(JNIEnv *env, jclass arrayClass, char *componentSignature,
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jclass *componentClassPtr)
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{
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jobject arrayClassLoader;
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jclass *classes;
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jint count;
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jclass componentClass = NULL;
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jdwpError serror;
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jvmtiError error;
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serror = JDWP_ERROR(NONE);
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error = classLoader(arrayClass, &arrayClassLoader);
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if (error != JVMTI_ERROR_NONE) {
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return map2jdwpError(error);
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}
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error = allLoadedClasses(&classes, &count);
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if (error != JVMTI_ERROR_NONE) {
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serror = map2jdwpError(error);
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} else {
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int i;
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for (i = 0; (i < count) && (componentClass == NULL); i++) {
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char *signature = NULL;
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jclass clazz = classes[i];
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jboolean match;
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jvmtiError error;
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/* signature must match */
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error = classSignature(clazz, &signature, NULL);
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if (error != JVMTI_ERROR_NONE) {
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serror = map2jdwpError(error);
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break;
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}
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match = strcmp(signature, componentSignature) == 0;
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jvmtiDeallocate(signature);
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/* if signature matches, get class loader to check if
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* it matches
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*/
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if (match) {
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jobject loader;
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error = classLoader(clazz, &loader);
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if (error != JVMTI_ERROR_NONE) {
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return map2jdwpError(error);
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}
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match = isSameObject(env, loader, arrayClassLoader);
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}
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if (match) {
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componentClass = clazz;
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}
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}
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jvmtiDeallocate(classes);
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*componentClassPtr = componentClass;
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}
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if (serror == JDWP_ERROR(NONE) && componentClass == NULL) {
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/* per JVM spec, component class is always loaded
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* before array class, so this should never occur.
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*/
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serror = JDWP_ERROR(NOT_FOUND);
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}
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return serror;
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}
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static void
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writeNewObjectArray(JNIEnv *env, PacketOutputStream *out,
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jclass arrayClass, jint size, char *componentSignature)
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{
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WITH_LOCAL_REFS(env, 1) {
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jarray array;
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jclass componentClass;
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jdwpError serror;
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serror = getComponentClass(env, arrayClass,
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componentSignature, &componentClass);
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if (serror != JDWP_ERROR(NONE)) {
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outStream_setError(out, serror);
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} else {
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array = JNI_FUNC_PTR(env,NewObjectArray)(env, size, componentClass, 0);
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if (JNI_FUNC_PTR(env,ExceptionOccurred)(env)) {
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JNI_FUNC_PTR(env,ExceptionClear)(env);
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array = NULL;
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}
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if (array == NULL) {
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outStream_setError(out, JDWP_ERROR(OUT_OF_MEMORY));
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} else {
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(void)outStream_writeByte(out, specificTypeKey(env, array));
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(void)outStream_writeObjectRef(env, out, array);
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}
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}
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} END_WITH_LOCAL_REFS(env);
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}
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static void
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writeNewPrimitiveArray(JNIEnv *env, PacketOutputStream *out,
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jclass arrayClass, jint size, char *componentSignature)
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{
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WITH_LOCAL_REFS(env, 1) {
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jarray array = NULL;
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switch (componentSignature[0]) {
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case JDWP_TAG(BYTE):
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array = JNI_FUNC_PTR(env,NewByteArray)(env, size);
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break;
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case JDWP_TAG(CHAR):
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array = JNI_FUNC_PTR(env,NewCharArray)(env, size);
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break;
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case JDWP_TAG(FLOAT):
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array = JNI_FUNC_PTR(env,NewFloatArray)(env, size);
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break;
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case JDWP_TAG(DOUBLE):
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array = JNI_FUNC_PTR(env,NewDoubleArray)(env, size);
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break;
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case JDWP_TAG(INT):
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array = JNI_FUNC_PTR(env,NewIntArray)(env, size);
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break;
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case JDWP_TAG(LONG):
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array = JNI_FUNC_PTR(env,NewLongArray)(env, size);
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break;
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case JDWP_TAG(SHORT):
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array = JNI_FUNC_PTR(env,NewShortArray)(env, size);
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break;
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case JDWP_TAG(BOOLEAN):
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array = JNI_FUNC_PTR(env,NewBooleanArray)(env, size);
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break;
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default:
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outStream_setError(out, JDWP_ERROR(TYPE_MISMATCH));
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break;
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}
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if (JNI_FUNC_PTR(env,ExceptionOccurred)(env)) {
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JNI_FUNC_PTR(env,ExceptionClear)(env);
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array = NULL;
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}
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if (array == NULL) {
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outStream_setError(out, JDWP_ERROR(OUT_OF_MEMORY));
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} else {
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(void)outStream_writeByte(out, specificTypeKey(env, array));
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(void)outStream_writeObjectRef(env, out, array);
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}
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} END_WITH_LOCAL_REFS(env);
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}
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static jboolean
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newInstance(PacketInputStream *in, PacketOutputStream *out)
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{
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JNIEnv *env;
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char *signature = NULL;
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char *componentSignature;
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jclass arrayClass;
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jint size;
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jvmtiError error;
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env = getEnv();
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arrayClass = inStream_readClassRef(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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size = 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 = classSignature(arrayClass, &signature, NULL);
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if ( error != JVMTI_ERROR_NONE ) {
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outStream_setError(out, map2jdwpError(error));
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return JNI_FALSE;
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}
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componentSignature = &signature[1];
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if ((componentSignature[0] == JDWP_TAG(OBJECT)) ||
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(componentSignature[0] == JDWP_TAG(ARRAY))) {
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writeNewObjectArray(env, out, arrayClass, size, componentSignature);
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} else {
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writeNewPrimitiveArray(env, out, arrayClass, size, componentSignature);
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}
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jvmtiDeallocate(signature);
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return JNI_TRUE;
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}
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void *ArrayType_Cmds[] = { (void *)0x1
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,(void *)newInstance};
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