arrayreferenceimpl.c

来自「This is a resource based on j2me embedde」· C语言 代码 · 共 595 行 · 第 1/2 页

                    writeFloatComponents(env, out, array, index, length);
                    break;
        
                case JDWP_TAG(DOUBLE):
                    writeDoubleComponents(env, out, array, index, length);
                    break;
        
                case JDWP_TAG(INT):
                    writeIntComponents(env, out, array, index, length);
                    break;
        
                case JDWP_TAG(LONG):
                    writeLongComponents(env, out, array, index, length);
                    break;
        
                case JDWP_TAG(SHORT):
                    writeShortComponents(env, out, array, index, length);
                    break;
        
                case JDWP_TAG(BOOLEAN):
                    writeBooleanComponents(env, out, array, index, length);
                    break;
        
                default:
                    outStream_setError(out, JDWP_ERROR(INVALID_TAG));
                    break;
            }
        }

        jvmtiDeallocate(signature);

    err:;

    } END_WITH_LOCAL_REFS(env);

    if (JNI_FUNC_PTR(env,ExceptionOccurred)(env)) {
        outStream_setError(out, JDWP_ERROR(INTERNAL));
        JNI_FUNC_PTR(env,ExceptionClear)(env);
    } 

    return JNI_TRUE;
}

static jdwpError 
readBooleanComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jboolean component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readBoolean(in);
        JNI_FUNC_PTR(env,SetBooleanArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}

static jdwpError 
readByteComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jbyte component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readByte(in);
        JNI_FUNC_PTR(env,SetByteArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}

static jdwpError 
readCharComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jchar component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readChar(in);
        JNI_FUNC_PTR(env,SetCharArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}

static jdwpError 
readShortComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jshort component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readShort(in);
        JNI_FUNC_PTR(env,SetShortArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}

static jdwpError 
readIntComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jint component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readInt(in);
        JNI_FUNC_PTR(env,SetIntArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}

static jdwpError 
readLongComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jlong component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readLong(in);
        JNI_FUNC_PTR(env,SetLongArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}

static jdwpError 
readFloatComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jfloat component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readFloat(in);
        JNI_FUNC_PTR(env,SetFloatArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}

static jdwpError 
readDoubleComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
{
    int i;
    jdouble component;

    for (i = 0; (i < length) && !inStream_error(in); i++) {
        component = inStream_readDouble(in);
        JNI_FUNC_PTR(env,SetDoubleArrayRegion)(env, array, index + i, 1, &component);
    }
    return inStream_error(in);
}


static jdwpError 
readObjectComponents(JNIEnv *env, PacketInputStream *in, 
                   jarray array, int index, int length)
                   /* char *componentSignature) */
{
    int i;

    for (i = 0; i < length; i++) {
        jobject object = inStream_readObjectRef(env, in);

        JNI_FUNC_PTR(env,SetObjectArrayElement)(env, array, index + i, object);
        if (JNI_FUNC_PTR(env,ExceptionOccurred)(env)) {
            /* caller will clear */
            break;
        }
    }

    return JDWP_ERROR(NONE);
}


static jboolean 
setValues(PacketInputStream *in, PacketOutputStream *out)
{
    JNIEnv *env = getEnv();
    jdwpError serror = JDWP_ERROR(NONE);
    int arrayLength;
    jarray array;
    jint index;
    jint length;
    
    array = inStream_readArrayRef(env, in);
    if (inStream_error(in)) {
        return JNI_TRUE;
    }
    index = inStream_readInt(in);
    if (inStream_error(in)) {
        return JNI_TRUE;
    }
    length = inStream_readInt(in);
    if (inStream_error(in)) {
        return JNI_TRUE;
    }
    
    arrayLength = JNI_FUNC_PTR(env,GetArrayLength)(env, array);

    if ((index < 0) || (index > arrayLength - 1)) {
        outStream_setError(out, JDWP_ERROR(INVALID_INDEX));
        return JNI_TRUE;
    }

    if ((length < 0) || (length + index > arrayLength)) {
        outStream_setError(out, JDWP_ERROR(INVALID_LENGTH));
        return JNI_TRUE;
    }

    WITH_LOCAL_REFS(env, 1)  {

        jclass arrayClass;
        char *signature = NULL;
        char *componentSignature;
        jvmtiError error;
        
        arrayClass = JNI_FUNC_PTR(env,GetObjectClass)(env, array);
        error = classSignature(arrayClass, &signature, NULL);
        if (error != JVMTI_ERROR_NONE) {
            goto err;
        }
        componentSignature = &signature[1];

        switch (componentSignature[0]) {
            case JDWP_TAG(OBJECT):
            case JDWP_TAG(ARRAY):
                serror = readObjectComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(BYTE):
                serror = readByteComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(CHAR):
                serror = readCharComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(FLOAT):
                serror = readFloatComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(DOUBLE):
                serror = readDoubleComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(INT):
                serror = readIntComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(LONG):
                serror = readLongComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(SHORT):
                serror = readShortComponents(env, in, array, index, length);
                break;

            case JDWP_TAG(BOOLEAN):
                serror = readBooleanComponents(env, in, array, index, length);
                break;

            default:
                {
                    ERROR_MESSAGE(("Invalid array component signature: %s",
                                        componentSignature));
                    EXIT_ERROR(AGENT_ERROR_INVALID_OBJECT,NULL);
                }
                break;
        }

        jvmtiDeallocate(signature);

    err:;

    } END_WITH_LOCAL_REFS(env);

    if (JNI_FUNC_PTR(env,ExceptionOccurred)(env)) {
        /*
         * TO DO: Check exception type
         */
        serror = JDWP_ERROR(TYPE_MISMATCH);
        JNI_FUNC_PTR(env,ExceptionClear)(env);
    }

    outStream_setError(out, serror);
    return JNI_TRUE;
}


void *ArrayReference_Cmds[] = { (void *)0x3
    ,(void *)length
    ,(void *)getValues
    ,(void *)setValues};