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libdtn-devel-2.6.0-2mdv2009.1.i586.rpm

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<h1>Stats.cc</h1><a href="Stats_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> *    Copyright 2007 Baylor University</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> *    Licensed under the Apache License, Version 2.0 (the "License");</span>
<a name="l00005"></a>00005 <span class="comment"> *    you may not use this file except in compliance with the License.</span>
<a name="l00006"></a>00006 <span class="comment"> *    You may obtain a copy of the License at</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> *        http://www.apache.org/licenses/LICENSE-2.0</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> *    Unless required by applicable law or agreed to in writing, software</span>
<a name="l00011"></a>00011 <span class="comment"> *    distributed under the License is distributed on an "AS IS" BASIS,</span>
<a name="l00012"></a>00012 <span class="comment"> *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<a name="l00013"></a>00013 <span class="comment"> *    See the License for the specific language governing permissions and</span>
<a name="l00014"></a>00014 <span class="comment"> *    limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment"> */</span>
<a name="l00016"></a>00016 
<a name="l00017"></a>00017 <span class="preprocessor">#include "<a class="code" href="Stats_8h.html">Stats.h</a>"</span>
<a name="l00018"></a>00018 
<a name="l00019"></a>00019 <span class="keyword">namespace </span>prophet
<a name="l00020"></a>00020 {
<a name="l00021"></a>00021 
<a name="l00022"></a><a class="code" href="classprophet_1_1Stats.html#11251afd6bc4166b855ea70dcfd6787c">00022</a> <a class="code" href="classprophet_1_1Stats.html#11251afd6bc4166b855ea70dcfd6787c" title="Destructor.">Stats::~Stats</a>()
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024     <span class="keywordflow">for</span> (pstats::iterator i = <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.begin(); i != <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.end(); i++)
<a name="l00025"></a>00025     {
<a name="l00026"></a>00026         <span class="keyword">delete</span> (*i).second;
<a name="l00027"></a>00027     }
<a name="l00028"></a>00028     <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.clear();
<a name="l00029"></a>00029 }
<a name="l00030"></a>00030 
<a name="l00031"></a>00031 <span class="keywordtype">void</span>
<a name="l00032"></a><a class="code" href="classprophet_1_1Stats.html#b0bc4412f7ac096b5b8af312ed4f7622">00032</a> <a class="code" href="classprophet_1_1Stats.html#b0bc4412f7ac096b5b8af312ed4f7622" title="Given a Bundle and a predictability value, update the stats kept for that Bundle...">Stats::update_stats</a>(<span class="keyword">const</span> <a class="code" href="classprophet_1_1Bundle.html" title="Facade interface between Prophet router and host implmentation&amp;#39;s Bundle representation...">Bundle</a>* b, <span class="keywordtype">double</span> p)
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034     <a class="code" href="structprophet_1_1StatsEntry.html" title="Statistics to gather per Bundle as described in section 3.7 regarding Queuing Policies...">StatsEntry</a>* se = <a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">find</a>(b);
<a name="l00035"></a>00035 
<a name="l00036"></a>00036     <span class="comment">// weed out the oddball</span>
<a name="l00037"></a>00037     <span class="keywordflow">if</span> (se == NULL) <span class="keywordflow">return</span>;
<a name="l00038"></a>00038 
<a name="l00039"></a>00039     <span class="comment">// update p_max</span>
<a name="l00040"></a>00040     <span class="keywordflow">if</span> (se-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#ac641640ed1393380d71015ed56caec0">p_max_</a> &lt; p) se-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#ac641640ed1393380d71015ed56caec0">p_max_</a> = p;
<a name="l00041"></a>00041 
<a name="l00042"></a>00042     <span class="comment">// update MOPR, Section 3.7, eq. 7</span>
<a name="l00043"></a>00043     se-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#c632984803f280b1ae63be79a5a53816">mopr_</a> += (1 - se-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#c632984803f280b1ae63be79a5a53816">mopr_</a>) * p;
<a name="l00044"></a>00044 
<a name="l00045"></a>00045     <span class="comment">// update LMOPR, Section 3.7, eq. 8</span>
<a name="l00046"></a>00046     se-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#b9f55d760b17d35df3fd71c14b43f36e">lmopr_</a> += p;
<a name="l00047"></a>00047 
<a name="l00048"></a>00048     <span class="comment">// this shouldn't be necessary, since the pointer is already stored</span>
<a name="l00049"></a>00049     <span class="comment">// pstats_[b] = se;</span>
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051 
<a name="l00052"></a>00052 <span class="keywordtype">double</span>
<a name="l00053"></a><a class="code" href="classprophet_1_1Stats.html#7388738e42fdb699a95a88e2be62d8c8">00053</a> <a class="code" href="classprophet_1_1Stats.html#7388738e42fdb699a95a88e2be62d8c8" title="Given a Bundle, return the max predictability for any route over which this Bundle...">Stats::get_p_max</a>(<span class="keyword">const</span> <a class="code" href="classprophet_1_1Bundle.html" title="Facade interface between Prophet router and host implmentation&amp;#39;s Bundle representation...">Bundle</a>* b)<span class="keyword"> const</span>
<a name="l00054"></a>00054 <span class="keyword"></span>{
<a name="l00055"></a>00055     <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span> 0.0;
<a name="l00056"></a>00056     <span class="keywordflow">return</span> <span class="keyword">const_cast&lt;</span><a class="code" href="classprophet_1_1Stats.html" title="Container for Bundle statistics, indexed by Bundle identifier.">Stats</a>*<span class="keyword">&gt;</span>(<span class="keyword">this</span>)-&gt;<a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">find</a>(b)-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#ac641640ed1393380d71015ed56caec0">p_max_</a>;
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058 
<a name="l00059"></a>00059 <span class="keywordtype">double</span>
<a name="l00060"></a><a class="code" href="classprophet_1_1Stats.html#1e42b3fb7cb514336dbb17a6063c7fd3">00060</a> <a class="code" href="classprophet_1_1Stats.html#1e42b3fb7cb514336dbb17a6063c7fd3" title="Given a Bundle, return the predictability favor for the routes over which this Bundle...">Stats::get_mopr</a>(<span class="keyword">const</span> <a class="code" href="classprophet_1_1Bundle.html" title="Facade interface between Prophet router and host implmentation&amp;#39;s Bundle representation...">Bundle</a>* b)<span class="keyword"> const</span>
<a name="l00061"></a>00061 <span class="keyword"></span>{
<a name="l00062"></a>00062     <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span> 0.0;
<a name="l00063"></a>00063     <span class="keywordflow">return</span> <span class="keyword">const_cast&lt;</span><a class="code" href="classprophet_1_1Stats.html" title="Container for Bundle statistics, indexed by Bundle identifier.">Stats</a>*<span class="keyword">&gt;</span>(<span class="keyword">this</span>)-&gt;<a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">find</a>(b)-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#c632984803f280b1ae63be79a5a53816">mopr_</a>;
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 
<a name="l00066"></a>00066 <span class="keywordtype">double</span>
<a name="l00067"></a><a class="code" href="classprophet_1_1Stats.html#cc7e28afebf8aa7c06ebf16a1140e1a1">00067</a> <a class="code" href="classprophet_1_1Stats.html#cc7e28afebf8aa7c06ebf16a1140e1a1" title="Given a Bundle, return the linear predictability favor for the routes over which...">Stats::get_lmopr</a>(<span class="keyword">const</span> <a class="code" href="classprophet_1_1Bundle.html" title="Facade interface between Prophet router and host implmentation&amp;#39;s Bundle representation...">Bundle</a>* b)<span class="keyword"> const</span>
<a name="l00068"></a>00068 <span class="keyword"></span>{
<a name="l00069"></a>00069     <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span> 0.0;
<a name="l00070"></a>00070     <span class="keywordflow">return</span> <span class="keyword">const_cast&lt;</span><a class="code" href="classprophet_1_1Stats.html" title="Container for Bundle statistics, indexed by Bundle identifier.">Stats</a>*<span class="keyword">&gt;</span>(<span class="keyword">this</span>)-&gt;<a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">find</a>(b)-&gt;<a class="code" href="structprophet_1_1StatsEntry.html#b9f55d760b17d35df3fd71c14b43f36e">lmopr_</a>;
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072 
<a name="l00073"></a>00073 <a class="code" href="structprophet_1_1StatsEntry.html" title="Statistics to gather per Bundle as described in section 3.7 regarding Queuing Policies...">StatsEntry</a>*
<a name="l00074"></a><a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018">00074</a> <a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">Stats::find</a>(<span class="keyword">const</span> <a class="code" href="classprophet_1_1Bundle.html" title="Facade interface between Prophet router and host implmentation&amp;#39;s Bundle representation...">Bundle</a>* b)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076     <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span> NULL;
<a name="l00077"></a>00077 
<a name="l00078"></a>00078     <span class="comment">// search for Stats for Bundle</span>
<a name="l00079"></a>00079     <a class="code" href="classprophet_1_1Stats.html#02e876b94cbb423ff229841cf596191f">iterator</a> i = <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.lower_bound(b-&gt;<a class="code" href="classprophet_1_1Bundle.html#8f4fad2c83696237207ba7a19acb9ca4" title="Accessors.">sequence_num</a>());
<a name="l00080"></a>00080 
<a name="l00081"></a>00081     <span class="comment">// return it if we find it</span>
<a name="l00082"></a>00082     <span class="keywordflow">if</span> (i != <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.end() &amp;&amp; !<a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.key_comp()(b-&gt;<a class="code" href="classprophet_1_1Bundle.html#8f4fad2c83696237207ba7a19acb9ca4" title="Accessors.">sequence_num</a>(),i-&gt;first))
<a name="l00083"></a>00083         <span class="keywordflow">return</span> (*i).second;
<a name="l00084"></a>00084 
<a name="l00085"></a>00085     <span class="comment">// otherwise create new zero'd StatsEntry</span>
<a name="l00086"></a>00086     <a class="code" href="structprophet_1_1StatsEntry.html" title="Statistics to gather per Bundle as described in section 3.7 regarding Queuing Policies...">StatsEntry</a>* se = <span class="keyword">new</span> <a class="code" href="structprophet_1_1StatsEntry.html" title="Statistics to gather per Bundle as described in section 3.7 regarding Queuing Policies...">StatsEntry</a>();
<a name="l00087"></a>00087 
<a name="l00088"></a>00088     <span class="comment">// insert into container</span>
<a name="l00089"></a>00089     <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.insert(i,pstats::value_type(b-&gt;<a class="code" href="classprophet_1_1Bundle.html#8f4fad2c83696237207ba7a19acb9ca4" title="Accessors.">sequence_num</a>(),se));
<a name="l00090"></a>00090 
<a name="l00091"></a>00091     <span class="comment">// return new entry</span>
<a name="l00092"></a>00092     <span class="keywordflow">return</span> se;
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094 
<a name="l00095"></a>00095 <span class="keywordtype">void</span>
<a name="l00096"></a><a class="code" href="classprophet_1_1Stats.html#a2ed8521c7551119d823d6b509716a80">00096</a> <a class="code" href="classprophet_1_1Stats.html#a2ed8521c7551119d823d6b509716a80" title="Bundle is no longer with us, so get rid of its stats.">Stats::drop_bundle</a>(<span class="keyword">const</span> <a class="code" href="classprophet_1_1Bundle.html" title="Facade interface between Prophet router and host implmentation&amp;#39;s Bundle representation...">Bundle</a>* b)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098     <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span>;
<a name="l00099"></a>00099 
<a name="l00100"></a>00100     <a class="code" href="classprophet_1_1Stats.html#02e876b94cbb423ff229841cf596191f">iterator</a> i = <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.find(b-&gt;<a class="code" href="classprophet_1_1Bundle.html#8f4fad2c83696237207ba7a19acb9ca4" title="Accessors.">sequence_num</a>());
<a name="l00101"></a>00101     <span class="keywordflow">if</span> (i != <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.end())
<a name="l00102"></a>00102     {
<a name="l00103"></a>00103         <span class="keyword">delete</span> (*i).second;
<a name="l00104"></a>00104         <a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.erase(i);
<a name="l00105"></a>00105         <a class="code" href="classprophet_1_1Stats.html#c09a6c6cd3f8fb948e83985d7f505d81">dropped_</a>++;
<a name="l00106"></a>00106     }
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 
<a name="l00109"></a>00109 }; <span class="comment">// namespace prophet</span>
</pre></div></div>
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