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

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<h1>DiscoveryTable.cc</h1><a href="DiscoveryTable_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 2006 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">#ifdef HAVE_CONFIG_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;<a class="code" href="dtn-config_8h.html">dtn-config.h</a>&gt;</span>
<a name="l00019"></a>00019 <span class="preprocessor">#endif</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "<a class="code" href="Discovery_8h.html">Discovery.h</a>"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="DiscoveryTable_8h.html">DiscoveryTable.h</a>"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="ConvergenceLayer_8h.html">conv_layers/ConvergenceLayer.h</a>"</span>
<a name="l00024"></a>00024 
<a name="l00025"></a>00025 <span class="keyword">namespace </span>dtn {
<a name="l00026"></a>00026 
<a name="l00027"></a>00027 <span class="keyword">template</span>&lt;&gt;
<a name="l00028"></a>00028 DiscoveryTable* oasys::Singleton&lt;DiscoveryTable,false&gt;::instance_ = NULL;
<a name="l00029"></a>00029 
<a name="l00030"></a><a class="code" href="classdtn_1_1DiscoveryTable.html#8a6f0e045795d45c998188da1e43dea8">00030</a> <a class="code" href="classdtn_1_1DiscoveryTable.html#8a6f0e045795d45c998188da1e43dea8">DiscoveryTable::DiscoveryTable</a>()
<a name="l00031"></a>00031     : <a class="code" href="classoasys_1_1Logger.html">Logger</a>(<span class="stringliteral">"DiscoveryTable"</span>,<span class="stringliteral">"/dtn/discovery/table"</span>)
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 }
<a name="l00034"></a>00034 
<a name="l00035"></a><a class="code" href="classdtn_1_1DiscoveryTable.html#fc75d0fda4e19348b0d814dd8fe824a6">00035</a> <a class="code" href="classdtn_1_1DiscoveryTable.html#fc75d0fda4e19348b0d814dd8fe824a6">DiscoveryTable::~DiscoveryTable</a>()
<a name="l00036"></a>00036 {
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 <span class="keywordtype">void</span>
<a name="l00040"></a><a class="code" href="classdtn_1_1DiscoveryTable.html#c7eb88618bfc1441f46de0375c1caed1">00040</a> <a class="code" href="classdtn_1_1DiscoveryTable.html#c7eb88618bfc1441f46de0375c1caed1">DiscoveryTable::shutdown</a>()
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042     <span class="keywordflow">for</span>(DiscoveryList::iterator i = <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.begin();
<a name="l00043"></a>00043         i != <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.end();
<a name="l00044"></a>00044         i++)
<a name="l00045"></a>00045     {
<a name="l00046"></a>00046         <a class="code" href="classdtn_1_1Discovery.html" title="Abstraction of neighbor discovery agent.">Discovery</a>* d = *i;
<a name="l00047"></a>00047         d-&gt;<a class="code" href="classdtn_1_1Discovery.html#f9d87f0da923ab6ede111146b3348771" title="Close down listening socket and stop the thread.">shutdown</a>();
<a name="l00048"></a>00048         <span class="keyword">delete</span> d;
<a name="l00049"></a>00049     }
<a name="l00050"></a>00050     <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.clear();
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052 
<a name="l00053"></a>00053 <span class="keywordtype">bool</span>
<a name="l00054"></a><a class="code" href="classdtn_1_1DiscoveryTable.html#756f0ef8bee8033cfa5774b4cda78827">00054</a> <a class="code" href="classdtn_1_1DiscoveryTable.html#756f0ef8bee8033cfa5774b4cda78827">DiscoveryTable::find</a>(<span class="keyword">const</span> std::string&amp; name,
<a name="l00055"></a>00055                      DiscoveryList::iterator* iter)
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057     <a class="code" href="classdtn_1_1Discovery.html" title="Abstraction of neighbor discovery agent.">Discovery</a>* disc;
<a name="l00058"></a>00058     <span class="keywordflow">for</span> (*iter = <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.begin(); *iter != <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.end(); (*iter)++)
<a name="l00059"></a>00059     {
<a name="l00060"></a>00060         disc = **iter;
<a name="l00061"></a>00061         <span class="keywordflow">if</span> (disc-&gt;<a class="code" href="classdtn_1_1Discovery.html#28f6c94d28520370db8c09c8b5881b8f" title="Name of this Discovery instance.">name</a>() == name)
<a name="l00062"></a>00062             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00063"></a>00063     }
<a name="l00064"></a>00064     <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066 
<a name="l00067"></a>00067 <span class="keywordtype">bool</span>
<a name="l00068"></a><a class="code" href="classdtn_1_1DiscoveryTable.html#f2aa104f3b5618e58b21b80624c1a393">00068</a> <a class="code" href="classdtn_1_1DiscoveryTable.html#f2aa104f3b5618e58b21b80624c1a393">DiscoveryTable::add</a>(<span class="keyword">const</span> std::string&amp; name,
<a name="l00069"></a>00069                     <span class="keyword">const</span> <span class="keywordtype">char</span>* afname,
<a name="l00070"></a>00070                     <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>* argv[],
<a name="l00071"></a>00071                     <span class="keyword">const</span> <span class="keywordtype">char</span>** error)
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073     DiscoveryList::iterator iter;
<a name="l00074"></a>00074 
<a name="l00075"></a>00075     <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1DiscoveryTable.html#756f0ef8bee8033cfa5774b4cda78827">find</a>(name, &amp;iter))
<a name="l00076"></a>00076     {
<a name="l00077"></a>00077         *error = <span class="stringliteral">"agent exists with that name"</span>;
<a name="l00078"></a>00078         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00079"></a>00079     }
<a name="l00080"></a>00080 
<a name="l00081"></a>00081     std::string af(afname);
<a name="l00082"></a>00082     <a class="code" href="classdtn_1_1Discovery.html" title="Abstraction of neighbor discovery agent.">Discovery</a>* disc = <a class="code" href="classdtn_1_1Discovery.html#a4db7b5f18c029eb30bf5f90a8b872a3" title="Factory method for instantiating objects from the appropriate derived class.">Discovery::create_discovery</a>(name, afname, argc, argv,
<a name="l00083"></a>00083                                                   error);
<a name="l00084"></a>00084 
<a name="l00085"></a>00085     <span class="keywordflow">if</span> (disc == NULL) {
<a name="l00086"></a>00086         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00087"></a>00087     }
<a name="l00088"></a>00088     
<a name="l00089"></a>00089     log_info(<span class="stringliteral">"adding discovery agent %s (%s)"</span>,name.c_str(),afname);
<a name="l00090"></a>00090     
<a name="l00091"></a>00091     <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.push_back(disc);
<a name="l00092"></a>00092     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094 
<a name="l00095"></a>00095 <span class="keywordtype">bool</span>
<a name="l00096"></a><a class="code" href="classdtn_1_1DiscoveryTable.html#a2d8309867011d3a8c51678a95028d21">00096</a> <a class="code" href="classdtn_1_1DiscoveryTable.html#a2d8309867011d3a8c51678a95028d21">DiscoveryTable::del</a>(<span class="keyword">const</span> std::string&amp; name)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098     DiscoveryList::iterator iter;
<a name="l00099"></a>00099     <a class="code" href="classdtn_1_1Discovery.html" title="Abstraction of neighbor discovery agent.">Discovery</a>* disc;
<a name="l00100"></a>00100 
<a name="l00101"></a>00101     log_info(<span class="stringliteral">"removing discovery agent %s"</span>,name.c_str());
<a name="l00102"></a>00102 
<a name="l00103"></a>00103     <span class="keywordflow">if</span>(! <a class="code" href="classdtn_1_1DiscoveryTable.html#756f0ef8bee8033cfa5774b4cda78827">find</a>(name,&amp;iter))
<a name="l00104"></a>00104     {
<a name="l00105"></a>00105         log_err(<span class="stringliteral">"error removing agent %s: no such agent"</span>,name.c_str());
<a name="l00106"></a>00106         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00107"></a>00107     }
<a name="l00108"></a>00108 
<a name="l00109"></a>00109     disc = *iter;
<a name="l00110"></a>00110     <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.erase(iter);
<a name="l00111"></a>00111     disc-&gt;<a class="code" href="classdtn_1_1Discovery.html#f9d87f0da923ab6ede111146b3348771" title="Close down listening socket and stop the thread.">shutdown</a>(); 
<a name="l00112"></a>00112     <span class="keyword">delete</span> disc;
<a name="l00113"></a>00113 
<a name="l00114"></a>00114     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 
<a name="l00117"></a>00117 <span class="keywordtype">void</span>
<a name="l00118"></a><a class="code" href="classdtn_1_1DiscoveryTable.html#ba6dcb6ab839afed5481ecb1c1e45e1b">00118</a> <a class="code" href="classdtn_1_1DiscoveryTable.html#ba6dcb6ab839afed5481ecb1c1e45e1b">DiscoveryTable::dump</a>(oasys::StringBuffer* <a class="code" href="num2sdnv_8c.html#a81cdcc7ff6987bc85c073253e32715f">buf</a>)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120     DiscoveryList::iterator iter;
<a name="l00121"></a>00121     <a class="code" href="classdtn_1_1Discovery.html" title="Abstraction of neighbor discovery agent.">Discovery</a>* disc;
<a name="l00122"></a>00122 
<a name="l00123"></a>00123     buf-&gt;appendf(<span class="stringliteral">"\nDiscovery: %zu agents\n"</span>
<a name="l00124"></a>00124                  <span class="stringliteral">"---------\n"</span>,<a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.size());
<a name="l00125"></a>00125     <span class="keywordflow">for</span> (iter = <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.begin(); iter != <a class="code" href="classdtn_1_1DiscoveryTable.html#4a1452133cacd071b4b2bd70aeeb781a">dlist_</a>.end(); iter++)
<a name="l00126"></a>00126     {
<a name="l00127"></a>00127         disc = *iter;
<a name="l00128"></a>00128         disc-&gt;<a class="code" href="classdtn_1_1Discovery.html#a380c76912923a5a2f5ead66d92f2259" title="Append snapshot of object state to StringBuffer.">dump</a>(buf);
<a name="l00129"></a>00129         buf-&gt;append(<span class="stringliteral">"\n"</span>);
<a name="l00130"></a>00130     }
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132 
<a name="l00133"></a>00133 } <span class="comment">// namespace dtn</span>
</pre></div></div>
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