source: icXML/icXML-devel/src/xercesc/framework/MemBufFormatTarget.cpp @ 2722

Last change on this file since 2722 was 2722, checked in by cameron, 6 years ago

Original Xerces files with import mods for icxercesc

File size: 3.1 KB
Line 
1/*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements.  See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License.  You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18/*
19 * $Id: MemBufFormatTarget.cpp 932887 2010-04-11 13:04:59Z borisk $
20 */
21
22#include <xercesc/framework/MemBufFormatTarget.hpp>
23#include <icxercesc/util/XMLString.hpp>
24#include <string.h>
25
26XERCES_CPP_NAMESPACE_BEGIN
27
28MemBufFormatTarget::MemBufFormatTarget( XMLSize_t            initCapacity
29                                      , MemoryManager* const manager)
30    : fMemoryManager(manager)
31    , fDataBuf(0)
32    , fIndex(0)
33    , fCapacity(initCapacity)
34{
35    // Buffer is one larger than capacity, to allow for zero term
36    fDataBuf = (XMLByte*) fMemoryManager->allocate
37    (
38        (fCapacity + 4) * sizeof(XMLByte)
39    );//new XMLByte[fCapacity+4];
40
41    // Keep it null terminated
42    fDataBuf[0] = XMLByte(0);
43}
44
45MemBufFormatTarget::~MemBufFormatTarget()
46{
47    fMemoryManager->deallocate(fDataBuf);//delete [] fDataBuf;
48}
49
50void MemBufFormatTarget::writeChars(const XMLByte* const toWrite
51                                  , const XMLSize_t      count
52                                  , XMLFormatter * const)
53{
54
55    if (count)
56    {
57      if (fIndex + count >= fCapacity)
58        ensureCapacity(count);
59
60      memcpy(&fDataBuf[fIndex], toWrite, count * sizeof(XMLByte));
61      fIndex += count;
62    }
63
64}
65
66const XMLByte* MemBufFormatTarget::getRawBuffer() const
67{
68    fDataBuf[fIndex] = 0;
69    fDataBuf[fIndex + 1] = 0;
70    fDataBuf[fIndex + 2] = 0;
71    fDataBuf[fIndex + 3] = 0;
72    return fDataBuf;
73}
74
75void MemBufFormatTarget::reset()
76{
77    fIndex = 0;
78    fDataBuf[0] = 0;
79    fDataBuf[fIndex + 1] = 0;
80    fDataBuf[fIndex + 2] = 0;
81    fDataBuf[fIndex + 3] = 0;
82}
83
84// ---------------------------------------------------------------------------
85//  MemBufFormatTarget: Private helper methods
86// ---------------------------------------------------------------------------
87void MemBufFormatTarget::ensureCapacity(const XMLSize_t extraNeeded)
88{
89    // Oops, not enough room. Calc new capacity and allocate new buffer
90    const XMLSize_t newCap = ((fIndex + extraNeeded) * 2);
91    XMLByte* newBuf = (XMLByte*) fMemoryManager->allocate
92    (
93        (newCap+4) * sizeof(XMLByte)
94    );//new XMLByte[newCap+4];
95
96    // Copy over the old stuff
97    memcpy(newBuf, fDataBuf, fIndex * sizeof(XMLByte));
98
99    // Clean up old buffer and store new stuff
100    fMemoryManager->deallocate(fDataBuf); //delete [] fDataBuf;
101    fDataBuf = newBuf;
102    fCapacity = newCap;
103}
104
105XERCES_CPP_NAMESPACE_END
Note: See TracBrowser for help on using the repository browser.