00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * Copyright (c) 1999-2000 The Apache Software Foundation. All rights 00005 * reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 00014 * 2. Redistributions in binary form must reproduce the above copyright 00015 * notice, this list of conditions and the following disclaimer in 00016 * the documentation and/or other materials provided with the 00017 * distribution. 00018 * 00019 * 3. The end-user documentation included with the redistribution, 00020 * if any, must include the following acknowledgment: 00021 * "This product includes software developed by the 00022 * Apache Software Foundation (http://www.apache.org/)." 00023 * Alternately, this acknowledgment may appear in the software itself, 00024 * if and wherever such third-party acknowledgments normally appear. 00025 * 00026 * 4. The names "Xerces" and "Apache Software Foundation" must 00027 * not be used to endorse or promote products derived from this 00028 * software without prior written permission. For written 00029 * permission, please contact apache\@apache.org. 00030 * 00031 * 5. Products derived from this software may not be called "Apache", 00032 * nor may "Apache" appear in their name, without prior written 00033 * permission of the Apache Software Foundation. 00034 * 00035 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00036 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00037 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00038 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00039 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00040 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00041 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00042 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00043 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00044 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00045 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00046 * SUCH DAMAGE. 00047 * ==================================================================== 00048 * 00049 * This software consists of voluntary contributions made by many 00050 * individuals on behalf of the Apache Software Foundation, and was 00051 * originally based on software copyright (c) 1999, International 00052 * Business Machines, Inc., http://www.ibm.com . For more information 00053 * on the Apache Software Foundation, please see 00054 * <http://www.apache.org/>. 00055 */ 00056 00057 /* 00058 * $Log: XMLBufferMgr.hpp,v $ 00059 * Revision 1.1 2002/05/11 20:01:39 bhavani 00060 * CR#CR062582# adding xercesc 1.7 file 00061 * 00062 * Revision 1.1.1.1 2002/02/01 22:21:51 peiyongz 00063 * sane_include 00064 * 00065 * Revision 1.5 2000/03/02 19:54:24 roddey 00066 * This checkin includes many changes done while waiting for the 00067 * 1.1.0 code to be finished. I can't list them all here, but a list is 00068 * available elsewhere. 00069 * 00070 * Revision 1.4 2000/02/24 20:00:23 abagchi 00071 * Swat for removing Log from API docs 00072 * 00073 * Revision 1.3 2000/02/15 01:21:30 roddey 00074 * Some initial documentation improvements. More to come... 00075 * 00076 * Revision 1.2 2000/02/06 07:47:47 rahulj 00077 * Year 2K copyright swat. 00078 * 00079 * Revision 1.1.1.1 1999/11/09 01:08:30 twl 00080 * Initial checkin 00081 * 00082 * Revision 1.2 1999/11/08 20:44:36 rahul 00083 * Swat for adding in Product name and CVS comment log variable. 00084 * 00085 */ 00086 00087 00088 #if !defined(XMLBUFFERMGR_HPP) 00089 #define XMLBUFFERMGR_HPP 00090 00091 #include <xercesc/util/XercesDefs.hpp> 00092 #include <xercesc/framework/XMLBuffer.hpp> 00093 00094 class XMLBufBid; 00095 00104 class XMLPARSER_EXPORT XMLBufferMgr 00105 { 00106 public : 00107 // ----------------------------------------------------------------------- 00108 // Constructors and Destructor 00109 // ----------------------------------------------------------------------- 00110 00113 XMLBufferMgr(); 00115 00118 ~XMLBufferMgr(); 00120 00121 00122 // ----------------------------------------------------------------------- 00123 // Buffer management 00124 // ----------------------------------------------------------------------- 00125 XMLBuffer& bidOnBuffer(); 00126 void releaseBuffer(XMLBuffer& toRelease); 00127 00128 00129 private : 00130 // ----------------------------------------------------------------------- 00131 // Private data members 00132 // 00133 // fBufCount 00134 // The count of buffers that have been allocated so far. 00135 // 00136 // fBufList; 00137 // The list of pointers to buffers that are loaned out. There will 00138 // never be a lot of them, so a flat list is good enough. 00139 // ----------------------------------------------------------------------- 00140 unsigned int fBufCount; 00141 XMLBuffer** fBufList; 00142 }; 00143 00144 00150 class XMLBufBid 00151 { 00152 public : 00153 // ----------------------------------------------------------------------- 00154 // Constructors and Destructor 00155 // ----------------------------------------------------------------------- 00156 XMLBufBid(XMLBufferMgr* const srcMgr) : 00157 00158 fBuffer(srcMgr->bidOnBuffer()) 00159 , fMgr(srcMgr) 00160 { 00161 } 00162 00163 ~XMLBufBid() 00164 { 00165 fMgr->releaseBuffer(fBuffer); 00166 } 00167 00168 00169 00170 // ----------------------------------------------------------------------- 00171 // Buffer access 00172 // ----------------------------------------------------------------------- 00173 void append(const XMLCh toAppend) 00174 { 00175 fBuffer.append(toAppend); 00176 } 00177 00178 void append(const XMLCh* const toAppend, const unsigned int count = 0) 00179 { 00180 fBuffer.append(toAppend, count); 00181 } 00182 00183 const XMLBuffer& getBuffer() const 00184 { 00185 return fBuffer; 00186 } 00187 00188 XMLBuffer& getBuffer() 00189 { 00190 return fBuffer; 00191 } 00192 00193 const XMLCh* getRawBuffer() const 00194 { 00195 fBuffer.fBuffer[fBuffer.fIndex] = 0; 00196 return fBuffer.fBuffer; 00197 } 00198 00199 XMLCh* getRawBuffer() 00200 { 00201 fBuffer.fBuffer[fBuffer.fIndex] = 0; 00202 return fBuffer.fBuffer; 00203 } 00204 00205 unsigned int getLen() const 00206 { 00207 return fBuffer.fIndex; 00208 } 00209 00210 bool isEmpty() 00211 { 00212 return (fBuffer.fIndex == 0); 00213 } 00214 00215 void reset() 00216 { 00217 fBuffer.reset(); 00218 } 00219 00220 void set(const XMLCh* const chars, const unsigned int count = 0) 00221 { 00222 fBuffer.set(chars, count); 00223 } 00224 00225 00226 private : 00227 // ----------------------------------------------------------------------- 00228 // Private data members 00229 // 00230 // fBuffer 00231 // This is the buffer we got, and which we will release. 00232 // 00233 // fMgr 00234 // This is the buffer manager we got the buffer from. This is needed 00235 // to release the buffer later. 00236 // ----------------------------------------------------------------------- 00237 XMLBuffer& fBuffer; 00238 XMLBufferMgr* const fMgr; 00239 }; 00240 00241 #endif