<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>DTN Reference Implementation: Stats.cc Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"> <link href="doxygen.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.8 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="main.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> <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&#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-><a class="code" href="structprophet_1_1StatsEntry.html#ac641640ed1393380d71015ed56caec0">p_max_</a> < p) se-><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-><a class="code" href="structprophet_1_1StatsEntry.html#c632984803f280b1ae63be79a5a53816">mopr_</a> += (1 - se-><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-><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&#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<</span><a class="code" href="classprophet_1_1Stats.html" title="Container for Bundle statistics, indexed by Bundle identifier.">Stats</a>*<span class="keyword">></span>(<span class="keyword">this</span>)-><a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">find</a>(b)-><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&#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<</span><a class="code" href="classprophet_1_1Stats.html" title="Container for Bundle statistics, indexed by Bundle identifier.">Stats</a>*<span class="keyword">></span>(<span class="keyword">this</span>)-><a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">find</a>(b)-><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&#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<</span><a class="code" href="classprophet_1_1Stats.html" title="Container for Bundle statistics, indexed by Bundle identifier.">Stats</a>*<span class="keyword">></span>(<span class="keyword">this</span>)-><a class="code" href="classprophet_1_1Stats.html#c9c2d45c4d7b8d685a45d23392209018" title="Convenience function for finding the StatEntry per bundle id.">find</a>(b)-><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&#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-><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() && !<a class="code" href="classprophet_1_1Stats.html#1c35ba0845e8b075ceea7236b2ff2ad4">pstats_</a>.key_comp()(b-><a class="code" href="classprophet_1_1Bundle.html#8f4fad2c83696237207ba7a19acb9ca4" title="Accessors.">sequence_num</a>(),i->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-><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&#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-><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> <hr size="1"><address style="text-align: right;"><small>Generated on Fri Jan 30 09:26:58 2009 for DTN Reference Implementation by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address> </body> </html>