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+<hr><h1>login_cookie.cpp</h1><a href="login__cookie_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
+00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
+00008 <font class="comment"> *</font>
+00009 <font class="comment"> * This file is part of NEVRAX NeL Network Services.</font>
+00010 <font class="comment"> * NEVRAX NeL Network Services is free software; you can redistribute it and/or modify</font>
+00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
+00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
+00013 <font class="comment"> * any later version.</font>
+00014 <font class="comment"></font>
+00015 <font class="comment"> * NEVRAX NeL Network Services is distributed in the hope that it will be useful, but</font>
+00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
+00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
+00018 <font class="comment"> * General Public License for more details.</font>
+00019 <font class="comment"></font>
+00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
+00021 <font class="comment"> * along with NEVRAX NeL Network Services; see the file COPYING. If not, write to the</font>
+00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
+00023 <font class="comment"> * MA 02111-1307, USA.</font>
+00024 <font class="comment"> */</font>
+00025
+00026 <font class="preprocessor">#include "<a class="code" href="stdnet_8h.html">stdnet.h</a>"</font>
+00027
+00028 <font class="preprocessor">#include "<a class="code" href="login__cookie_8h.html">nel/net/login_cookie.h</a>"</font>
+00029
+00030 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
+00031 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
+00032
+00033
+00034 <font class="keyword">namespace </font>NLNET {
+00035
+00036
+00037 <font class="comment">/*</font>
+00038 <font class="comment"> * Comparison == operator</font>
+00039 <font class="comment"> */</font>
+<a name="l00040"></a><a class="code" href="classNLNET_1_1CLoginCookie.html#a103">00040</a> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLNET.html#a98">operator== </a>(<font class="keyword">const</font> CLoginCookie &amp;c1, <font class="keyword">const</font> CLoginCookie &amp;c2)
+00041 {
+00042 <a class="code" href="debug_8h.html#a6">nlassert</a> (c1._Valid &amp;&amp; c2._Valid);
+00043
+00044 <font class="keywordflow">return</font> c1._UserAddr==c2._UserAddr &amp;&amp; c1._UserKey==c2._UserKey &amp;&amp; c1._UserId==c2._UserId;
+00045 }
+00046
+<a name="l00047"></a><a class="code" href="classNLNET_1_1CLoginCookie.html#a0">00047</a> CLoginCookie::CLoginCookie (<a class="code" href="types__nl_8h.html#a10">uint32</a> addr, <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>) : _Valid(true), _UserAddr(addr), _UserId(<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>)
+00048 {
+00049 <font class="comment">// generates the key for this cookie</font>
+00050 <a class="code" href="classNLNET_1_1CLoginCookie.html#o2">_UserKey</a> = <a class="code" href="classNLNET_1_1CLoginCookie.html#a10">generateKey</a>();
+00051 }
+00052
+00054
+<a name="l00055"></a><a class="code" href="classNLNET_1_1CLoginCookie.html#a10">00055</a> <a class="code" href="types__nl_8h.html#a10">uint32</a> CLoginCookie::generateKey()
+00056 {
+00057 <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="driver__opengl__extension__def_8h.html#a261">t</a> = time (NULL);
+00058 srand (time(NULL));
+00059 <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="driver__opengl__extension__def_8h.html#a262">r</a> = rand ();
+00060 <font class="keyword">static</font> <a class="code" href="types__nl_8h.html#a10">uint32</a> n = 0;
+00061 n++;
+00062
+00063 <font class="comment">// 12bits for the time (in second) =&gt; loop in 1 hour</font>
+00064 <font class="comment">// 8bits for random =&gt; 256 case</font>
+00065 <font class="comment">// 12bits for the inc number =&gt; can generate 4096 keys per second without any problem (if you generate more than this number, you could have 2 same keys)</font>
+00066 <font class="keywordflow">return</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a261">t</a>&amp;0xFFF)&lt;&lt;20 | (<a class="code" href="driver__opengl__extension__def_8h.html#a262">r</a>&amp;0xFF)&lt;&lt;12 | (n&amp;0xFFF);
+00067
+00068 <font class="comment">// 12bits for the time (in second) =&gt; loop in 1 hour</font>
+00069 <font class="comment">// 20bits for the inc number =&gt; can generate more than 1 million keys per second without any problem (never exceed on my computer)</font>
+00070 <font class="comment">// return (t&amp;0xFFF)&lt;&lt;20 | (n&amp;0xFFFFF);</font>
+00071 }
+00072
+00073
+00074 <font class="comment">/* test key generation</font>
+00075 <font class="comment">void main()</font>
+00076 <font class="comment">{</font>
+00077 <font class="comment"> set&lt;uint32&gt; myset;</font>
+00078 <font class="comment"></font>
+00079 <font class="comment"> // generates the key for this cookie</font>
+00080 <font class="comment"> while (true)</font>
+00081 <font class="comment"> {</font>
+00082 <font class="comment"> uint32 val = (t&amp;0xFFF)&lt;&lt;20 | (r&amp;0xFF)&lt;&lt;12 | (n&amp;0xFFF);</font>
+00083 <font class="comment"> pair&lt;set&lt;uint32&gt;::iterator,bool&gt; p = myset.insert (val);</font>
+00084 <font class="comment"> if (!p.second) printf("%10u 0x%x already inserted\n", val, val);</font>
+00085 <font class="comment"> }</font>
+00086 <font class="comment">}</font>
+00087 <font class="comment">*/</font>
+00088
+00089 } <font class="comment">// NL.</font>
+</pre></div>
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