GME
13
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00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one or more 00003 * contributor license agreements. See the NOTICE file distributed with 00004 * this work for additional information regarding copyright ownership. 00005 * The ASF licenses this file to You under the Apache License, Version 2.0 00006 * (the "License"); you may not use this file except in compliance with 00007 * the License. You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 00018 /* 00019 * $Id: DOMStringPool.cpp 678766 2008-07-22 14:00:16Z borisk $ 00020 */ 00021 00022 #include <xercesc/util/XMLString.hpp> 00023 #include <xercesc/util/PlatformUtils.hpp> 00024 00025 #include "DOMStringPool.hpp" 00026 #include "DOMDocumentImpl.hpp" 00027 00028 XERCES_CPP_NAMESPACE_BEGIN 00029 00030 DOMBuffer:: 00031 DOMBuffer(DOMDocumentImpl *doc, XMLSize_t capacity) : 00032 fBuffer(0) 00033 , fIndex(0) 00034 , fCapacity(capacity) 00035 , fDoc(doc) 00036 { 00037 // Buffer is one larger than capacity, to allow for zero term 00038 fBuffer = (XMLCh*) doc->allocate((fCapacity+1)*sizeof(XMLCh)); 00039 00040 // Keep it null terminated 00041 fBuffer[0] = XMLCh(0); 00042 } 00043 00044 // --------------------------------------------------------------------------- 00045 // DOMBuffer: Private helper methods 00046 // --------------------------------------------------------------------------- 00047 void DOMBuffer::expandCapacity(const XMLSize_t extraNeeded) 00048 { 00049 //not enough room. Calc new capacity and allocate new buffer 00050 const XMLSize_t newCap = (XMLSize_t)((fIndex + extraNeeded) * 1.25); 00051 XMLCh* newBuf = (XMLCh*) fDoc->allocate((newCap+1)*sizeof(XMLCh)); 00052 00053 // Copy over the old stuff 00054 memcpy(newBuf, fBuffer, fCapacity * sizeof(XMLCh)); 00055 00056 // revisit: Leave the old buffer in document heap, yes, this is a leak, but live with it! 00057 // store new stuff 00058 fBuffer = newBuf; 00059 fCapacity = newCap; 00060 } 00061 00062 XERCES_CPP_NAMESPACE_END