| /* |
| * 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. |
| */ |
| |
| /* |
| * $Id$ |
| */ |
| |
| #include <xercesc/util/XMLString.hpp> |
| #include <xercesc/util/PlatformUtils.hpp> |
| |
| #include "DOMStringPool.hpp" |
| #include "DOMDocumentImpl.hpp" |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| DOMBuffer:: |
| DOMBuffer(DOMDocumentImpl *doc, XMLSize_t capacity) : |
| fBuffer(0) |
| , fIndex(0) |
| , fCapacity(capacity) |
| , fDoc(doc) |
| { |
| // Buffer is one larger than capacity, to allow for zero term |
| fBuffer = (XMLCh*) doc->allocate((fCapacity+1)*sizeof(XMLCh)); |
| |
| // Keep it null terminated |
| fBuffer[0] = XMLCh(0); |
| } |
| |
| // --------------------------------------------------------------------------- |
| // DOMBuffer: Private helper methods |
| // --------------------------------------------------------------------------- |
| void DOMBuffer::expandCapacity(const XMLSize_t extraNeeded, bool releasePrevious /*= false*/) |
| { |
| //not enough room. Calc new capacity and allocate new buffer |
| const XMLSize_t newCap = (XMLSize_t)((fIndex + extraNeeded) * 1.25); |
| XMLCh* newBuf = (XMLCh*) fDoc->allocate((newCap+1)*sizeof(XMLCh)); |
| |
| // Copy over the old stuff |
| memcpy(newBuf, fBuffer, fCapacity * sizeof(XMLCh)); |
| |
| // If the caller told us to deallocate the old memory, do it; |
| // it may know that nobody could possibly get a pointer to the old memory buffer |
| // (e.g. if the DOM node is being created by the parser). Otherwise leave the old |
| // buffer in document heap; yes, this is a leak, but live with it! |
| if (releasePrevious) |
| fDoc->release(fBuffer); |
| // store new stuff |
| fBuffer = newBuf; |
| fCapacity = newCap; |
| } |
| |
| XERCES_CPP_NAMESPACE_END |