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<h1>objmap.h</h1><a href="objmap_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (C) 2001 Open Source Telecom Corporation.</span>
<a name="l00002"></a>00002 <span class="comment">// </span>
<a name="l00003"></a>00003 <span class="comment">// This program is free software; you can redistribute it and/or modify</span>
<a name="l00004"></a>00004 <span class="comment">// it under the terms of the GNU General Public License as published by</span>
<a name="l00005"></a>00005 <span class="comment">// the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00006"></a>00006 <span class="comment">// (at your option) any later version.</span>
<a name="l00007"></a>00007 <span class="comment">// </span>
<a name="l00008"></a>00008 <span class="comment">// This program is distributed in the hope that it will be useful,</span>
<a name="l00009"></a>00009 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00010"></a>00010 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00011"></a>00011 <span class="comment">// GNU General Public License for more details.</span>
<a name="l00012"></a>00012 <span class="comment">// </span>
<a name="l00013"></a>00013 <span class="comment">// You should have received a copy of the GNU General Public License</span>
<a name="l00014"></a>00014 <span class="comment">// along with this program; if not, write to the Free Software </span>
<a name="l00015"></a>00015 <span class="comment">// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span>
<a name="l00016"></a>00016 <span class="comment">// </span>
<a name="l00017"></a>00017 <span class="comment">// As a special exception to the GNU General Public License, permission is </span>
<a name="l00018"></a>00018 <span class="comment">// granted for additional uses of the text contained in its release </span>
<a name="l00019"></a>00019 <span class="comment">// of Common C++.</span>
<a name="l00020"></a>00020 <span class="comment">// </span>
<a name="l00021"></a>00021 <span class="comment">// The exception is that, if you link the Common C++ library with other</span>
<a name="l00022"></a>00022 <span class="comment">// files to produce an executable, this does not by itself cause the</span>
<a name="l00023"></a>00023 <span class="comment">// resulting executable to be covered by the GNU General Public License.</span>
<a name="l00024"></a>00024 <span class="comment">// Your use of that executable is in no way restricted on account of</span>
<a name="l00025"></a>00025 <span class="comment">// linking the Common C++ library code into it.</span>
<a name="l00026"></a>00026 <span class="comment">// </span>
<a name="l00027"></a>00027 <span class="comment">// This exception does not however invalidate any other reasons why</span>
<a name="l00028"></a>00028 <span class="comment">// the executable file might be covered by the GNU General Public License.</span>
<a name="l00029"></a>00029 <span class="comment">// </span>
<a name="l00030"></a>00030 <span class="comment">// This exception applies only to the code released under the </span>
<a name="l00031"></a>00031 <span class="comment">// name Common C++. If you copy code from other releases into a copy of</span>
<a name="l00032"></a>00032 <span class="comment">// Common C++, as the General Public License permits, the exception does</span>
<a name="l00033"></a>00033 <span class="comment">// not apply to the code that you add in this way. To avoid misleading</span>
<a name="l00034"></a>00034 <span class="comment">// anyone as to the status of such modified files, you must delete</span>
<a name="l00035"></a>00035 <span class="comment">// this exception notice from them.</span>
<a name="l00036"></a>00036 <span class="comment">// </span>
<a name="l00037"></a>00037 <span class="comment">// If you write modifications of your own for Common C++, it is your choice</span>
<a name="l00038"></a>00038 <span class="comment">// whether to permit this exception to apply to your modifications.</span>
<a name="l00039"></a>00039 <span class="comment">// If you do not wish that, delete this exception notice. </span>
<a name="l00040"></a>00040
<a name="l00046"></a>00046 <span class="preprocessor">#include <<a class="code" href="strchar_8h.html">cc++/strchar.h</a>></span>
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">namespace </span>ost {
<a name="l00049"></a>00049
<a name="l00058"></a>00058 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> K, <span class="keywordtype">unsigned</span> S>
<a name="l00059"></a><a class="code" href="classost_1_1obj_map.html">00059</a> <span class="keyword">class </span><a class="code" href="classost_1_1obj_map.html">objMap</a> {
<a name="l00060"></a>00060 <span class="keyword">protected</span>:
<a name="l00061"></a><a class="code" href="classost_1_1obj_map.html#ef8176a8acd51c60d305df1dc33c667d">00061</a> <span class="keyword">static</span> T *<a class="code" href="classost_1_1obj_map.html#ef8176a8acd51c60d305df1dc33c667d">objIndex</a>[S];
<a name="l00062"></a><a class="code" href="classost_1_1obj_map.html#1fc9048257b5dd2cf98fe1d86ee8d75b">00062</a> T* <a class="code" href="classost_1_1obj_map.html#1fc9048257b5dd2cf98fe1d86ee8d75b">objNext</a>;
<a name="l00063"></a><a class="code" href="classost_1_1obj_map.html#96897e628e96ca4590efb4c84db7edf0">00063</a> <span class="keyword">const</span> K <a class="code" href="classost_1_1obj_map.html#96897e628e96ca4590efb4c84db7edf0">objKey</a>;
<a name="l00064"></a>00064
<a name="l00065"></a><a class="code" href="classost_1_1obj_map.html#569d900c4fd6288742df69b5f9892e64">00065</a> <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <a class="code" href="classost_1_1obj_map.html#569d900c4fd6288742df69b5f9892e64">keyIndex</a>(K k)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="keywordtype">unsigned</span> idx = 0;
<a name="l00068"></a>00068 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *p = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)&k;
<a name="l00069"></a>00069 <span class="keywordtype">unsigned</span> len = <span class="keyword">sizeof</span>(K);
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keywordflow">while</span>(len--)
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 idx ^= (idx << 1) ^ *p;
<a name="l00074"></a>00074 ++p;
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076 <span class="keywordflow">return</span> idx % S;
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00079"></a><a class="code" href="classost_1_1obj_map.html#fc0f9891beba8ddfd2285566c74f1a62">00079</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <a class="code" href="classost_1_1obj_map.html#fc0f9891beba8ddfd2285566c74f1a62">getSize</a>(<span class="keywordtype">void</span>)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 <span class="keywordflow">return</span> S;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a><a class="code" href="classost_1_1obj_map.html#8a7026786efd9c660fbdfa05205ea313">00084</a> <a class="code" href="classost_1_1obj_map.html#8a7026786efd9c660fbdfa05205ea313">objMap</a>(<span class="keyword">const</span> K key)
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <span class="keywordtype">unsigned</span> idx = <a class="code" href="classost_1_1obj_map.html#569d900c4fd6288742df69b5f9892e64">keyIndex</a>(key);
<a name="l00087"></a>00087 <a class="code" href="classost_1_1obj_map.html#96897e628e96ca4590efb4c84db7edf0">objKey</a> = key;
<a name="l00088"></a>00088 <a class="code" href="classost_1_1obj_map.html#1fc9048257b5dd2cf98fe1d86ee8d75b">objNext</a> = <a class="code" href="classost_1_1obj_map.html#ef8176a8acd51c60d305df1dc33c667d">objIndex</a>[idx];
<a name="l00089"></a>00089 <a class="code" href="classost_1_1obj_map.html#ef8176a8acd51c60d305df1dc33c667d">objIndex</a>[idx] = (T *)<span class="keyword">this</span>;
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091 <span class="keyword">public</span>:
<a name="l00092"></a>00092 <span class="keyword">static</span> T *<a class="code" href="classost_1_1obj_map.html#6a4a422b97bf84670c05c934d93371ea">getObject</a>(keystring key);
<a name="l00093"></a>00093 };
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keywordtype">unsigned</span> S>
<a name="l00096"></a><a class="code" href="classost_1_1key_map.html">00096</a> <span class="keyword">class </span><a class="code" href="classost_1_1key_map.html">keyMap</a> : <span class="keyword">public</span> <a class="code" href="classost_1_1obj_map.html">objMap</a><T, keystring, S>
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 <a class="code" href="classost_1_1key_map.html">keyMap</a>(keystring key) : <a class="code" href="classost_1_1obj_map.html">objMap<T, keystring, S></a>(key) {};
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordtype">unsigned</span> keyIndex(keystring k)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="keywordtype">unsigned</span> idx = 0;
<a name="l00103"></a>00103 <span class="keywordflow">while</span>(*k)
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 idx = (idx << 1) ^ (<span class="keywordtype">unsigned</span>)*k;
<a name="l00106"></a>00106 ++k;
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 <span class="keywordflow">return</span> idx % S;
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110 };
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> K, <span class="keywordtype">unsigned</span> S>
<a name="l00113"></a>00113 T *<a class="code" href="classost_1_1obj_map.html">objMap<T, K, S>::objIndex</a>[S](0);
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> K, <span class="keywordtype">unsigned</span> S>
<a name="l00116"></a><a class="code" href="classost_1_1obj_map.html#6a4a422b97bf84670c05c934d93371ea">00116</a> T *<a class="code" href="classost_1_1obj_map.html">objMap<T, K, S>::getObject</a>(<span class="keyword">const</span> keystring key)
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 T *obj = <a class="code" href="classost_1_1obj_map.html#ef8176a8acd51c60d305df1dc33c667d">objIndex</a>[<a class="code" href="classost_1_1obj_map.html#569d900c4fd6288742df69b5f9892e64">keyIndex</a>(key)];
<a name="l00119"></a>00119 <span class="keywordflow">while</span>(obj)
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 <span class="keywordflow">if</span>(key == obj->objKey)
<a name="l00122"></a>00122 <span class="keywordflow">break</span>;
<a name="l00123"></a>00123 obj = obj->objNext;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 <span class="keywordflow">return</span> obj;
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127
<a name="l00128"></a>00128 }
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