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<h1>StringPool.hpp</h1><a href="StringPool_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*</span>
00002 <span class="comment"> * Copyright (c) 2001-2008</span>
00003 <span class="comment"> * DecisionSoft Limited. All rights reserved.</span>
00004 <span class="comment"> * Copyright (c) 2004-2008</span>
00005 <span class="comment"> * Oracle. All rights reserved.</span>
00006 <span class="comment"> *</span>
00007 <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</span>
00008 <span class="comment"> * you may not use this file except in compliance with the License.</span>
00009 <span class="comment"> * You may obtain a copy of the License at</span>
00010 <span class="comment"> *</span>
00011 <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span>
00012 <span class="comment"> *</span>
00013 <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span>
00014 <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
00015 <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
00016 <span class="comment"> * See the License for the specific language governing permissions and</span>
00017 <span class="comment"> * limitations under the License.</span>
00018 <span class="comment"> *</span>
00019 <span class="comment"> * $Id: StringPool.hpp 663 2008-10-08 17:51:30Z jpcs $</span>
00020 <span class="comment"> */</span>
00021
00022 <span class="preprocessor">#ifndef __STRINGPOOL_HPP</span>
00023 <span class="preprocessor"></span><span class="preprocessor">#define __STRINGPOOL_HPP</span>
00024 <span class="preprocessor"></span>
00025 <span class="preprocessor">#include &lt;xqilla/framework/XQillaExport.hpp&gt;</span>
00026 <span class="preprocessor">#include &lt;<a class="code" href="MemoryManager_8hpp.html">xercesc/framework/MemoryManager.hpp</a>&gt;</span>
00027 <span class="preprocessor">#include &lt;memory&gt;</span>
00028 <span class="preprocessor">#include &lt;cstring&gt;</span>
00029 <span class="comment">//Added so xqilla will compile under CC on Solaris</span>
00030 <span class="preprocessor">#include &lt;string&gt;</span>
00031 <span class="comment">// Added so xqilla will compile on SunOS 10 using STLPort</span>
00032 <span class="preprocessor">#include &lt;memory.h&gt;</span>
00033
<a name="l00034"></a><a class="code" href="classStringPool.html">00034</a> <span class="keyword">class </span>XQILLA_API StringPool
00035 {
00036 <span class="keyword">public</span>:
00037 <a class="code" href="classStringPool.html#a0">StringPool</a>(XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager *mm);
00038 <a class="code" href="classStringPool.html#a1">~StringPool</a>();
00039
00041 <span class="keyword">const</span> XMLCh* <a class="code" href="classStringPool.html#a2">getPooledString</a>(<span class="keyword">const</span> XMLCh *src);
00043 <span class="keyword">const</span> XMLCh* <a class="code" href="classStringPool.html#a2">getPooledString</a>(<span class="keyword">const</span> XMLCh *src, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length);
00045 <span class="keyword">const</span> XMLCh* <a class="code" href="classStringPool.html#a2">getPooledString</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *src);
00046
<a name="l00047"></a><a class="code" href="classStringPool.html#a5">00047</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classStringPool.html#a5">getCount</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _count; }
<a name="l00048"></a><a class="code" href="classStringPool.html#a6">00048</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classStringPool.html#a6">getHits</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _hits; }
<a name="l00049"></a><a class="code" href="classStringPool.html#a7">00049</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classStringPool.html#a7">getMisses</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _misses; }
<a name="l00050"></a><a class="code" href="classStringPool.html#a8">00050</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classStringPool.html#a8">getTooBig</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _toobig; }
00051 <span class="keywordtype">void</span> <a class="code" href="classStringPool.html#a9">dumpStatistics</a>() <span class="keyword">const</span>;
00052
00053 <span class="keyword">private</span>:
00054 <a class="code" href="classStringPool.html#a0">StringPool</a>(<span class="keyword">const</span> StringPool&amp;);
00055 StringPool &amp;operator=(<span class="keyword">const</span> StringPool&amp;);
00056
00057 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hash(<span class="keyword">const</span> XMLCh *v, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length);
00058 <span class="keyword">const</span> XMLCh *replicate(<span class="keyword">const</span> XMLCh *v, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length) <span class="keyword">const</span>;
00059 <span class="keywordtype">void</span> resize();
00060
00061 <span class="keyword">class </span>Bucket
00062 {
00063 <span class="keyword">public</span>:
00064 Bucket(<span class="keyword">const</span> XMLCh *v, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> l, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> h, Bucket *n)
00065 : value(v), length(l), hashValue(h), next(n) {}
00066
00067 <span class="keyword">const</span> XMLCh *value;
00068 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length;
00069 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hashValue;
00070 Bucket *next;
00071 };
00072
00073 XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager *_mm;
00074 Bucket **_bucketList;
00075 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _modulus;
00076 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _count;
00077 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _hits;
00078 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _misses;
00079 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _toobig;
00080 };
00081
00082 <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> StringPool::hash(<span class="keyword">const</span> XMLCh *v, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length)
00083 {
00084 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hashVal = 0;
00085 <span class="keywordflow">while</span>(length) {
00086 hashVal += (hashVal * 37) + (hashVal &gt;&gt; 24) + (<span class="keywordtype">unsigned</span> int)(*v);
00087 ++v;
00088 --length;
00089 }
00090 <span class="keywordflow">return</span> hashVal;
00091 }
00092
00093 <span class="keyword">inline</span> <span class="keyword">const</span> XMLCh *StringPool::replicate(<span class="keyword">const</span> XMLCh *v, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length)<span class="keyword"> const</span>
00094 <span class="keyword"></span>{
00095 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size = length * <span class="keyword">sizeof</span>(XMLCh);
00096 XMLCh *ret = (XMLCh*)_mm-&gt;<a class="code" href="classxercesc_1_1MemoryManager.html#z15_0">allocate</a>(size + <span class="keyword">sizeof</span>(XMLCh));
00097 memcpy(ret, v, size);
00098 ret[length] = 0;
00099 <span class="keywordflow">return</span> ret;
00100 }
00101
00102 <span class="preprocessor">#endif</span>
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