<!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: Controller.cc Source File</title> <link href="doxygen.css" rel="stylesheet" type="text/css"> <link href="tabs.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.6 --> <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> <h1>Controller.cc</h1><a href="Controller_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="Controller_8h.html">Controller.h</a>"</span> <a name="l00018"></a>00018 <a name="l00019"></a><a class="code" href="Controller_8cc.html#bf4d81c4f089c809f460b9c9cac6a682">00019</a> <span class="preprocessor">#define NEXT_INSTANCE \</span> <a name="l00020"></a>00020 <span class="preprocessor"> (++next_instance_ == 0) ? ++next_instance_ : next_instance_</span> <a name="l00021"></a>00021 <span class="preprocessor"></span> <a name="l00022"></a><a class="code" href="Controller_8cc.html#275861c30b08ec652f25510a884ccd58">00022</a> <span class="preprocessor">#define LOG(_level, _args...) core_->print_log( \</span> <a name="l00023"></a>00023 <span class="preprocessor"> "controller", BundleCore::_level, _args )</span> <a name="l00024"></a>00024 <span class="preprocessor"></span> <a name="l00025"></a>00025 <span class="keyword">namespace </span>prophet <a name="l00026"></a>00026 { <a name="l00027"></a>00027 <a name="l00028"></a>00028 Controller::Controller(BundleCore* core, Repository* repository, <a name="l00029"></a>00029 ProphetParams* params) <a name="l00030"></a>00030 : ExpirationHandler(<span class="stringliteral">"controller"</span>), <a name="l00031"></a>00031 core_(core), <a name="l00032"></a>00032 params_(params), <a name="l00033"></a>00033 max_route_(0), <a name="l00034"></a>00034 nodes_(core,<span class="stringliteral">"local"</span>,<span class="keyword">true</span>), <a name="l00035"></a>00035 next_instance_(0), <a name="l00036"></a>00036 timeout_(params_->hello_interval_ * 100), <a name="l00037"></a>00037 repository_(repository) <a name="l00038"></a>00038 { <a name="l00039"></a>00039 <span class="keywordflow">if</span> (core == NULL || params == NULL || repository == NULL) <a name="l00040"></a>00040 <span class="comment">// uh, how to signal error state?</span> <a name="l00041"></a>00041 { <a name="l00042"></a>00042 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_ERR,<span class="stringliteral">"constructor invoked with NULL parameter"</span>); <a name="l00043"></a>00043 <span class="keywordflow">return</span>; <a name="l00044"></a>00044 } <a name="l00045"></a>00045 <a name="l00046"></a>00046 <span class="keywordflow">if</span> (repository_->get_comparator()->qp() != params_->qp()) <a name="l00047"></a>00047 { <a name="l00048"></a>00048 QueueComp* qc = <a class="code" href="structprophet_1_1QueuePolicy.html#0af83ec59196788050fff090528d61a7" title="Factory method for creating QueuePolicy comparator instance.">QueuePolicy::policy</a>(params_->qp(), &stats_, <a name="l00049"></a>00049 &nodes_, params_->min_forward()); <a name="l00050"></a>00050 repository_->set_comparator(qc); <a name="l00051"></a>00051 } <a name="l00052"></a>00052 <a name="l00053"></a>00053 <span class="comment">// set up reminder for aging out Nodes, Acks</span> <a name="l00054"></a>00054 alarm_ = core_->create_alarm(<span class="keyword">this</span>,timeout_ * 100); <a name="l00055"></a>00055 <a name="l00056"></a>00056 <span class="comment">// set upper limit to growth of routing table</span> <a name="l00057"></a>00057 max_route_ = params->max_table_size_; <a name="l00058"></a>00058 nodes_.set_max_route(max_route_); <a name="l00059"></a>00059 <a name="l00060"></a>00060 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"constructor"</span>); <a name="l00061"></a>00061 } <a name="l00062"></a>00062 <a name="l00063"></a>00063 Controller::~Controller() <a name="l00064"></a>00064 { <a name="l00065"></a>00065 List::iterator i = list_.begin(); <a name="l00066"></a>00066 <span class="keywordflow">while</span> (i != list_.end()) <a name="l00067"></a>00067 { <a name="l00068"></a>00068 <span class="keyword">delete</span> *i; <a name="l00069"></a>00069 list_.erase(i++); <a name="l00070"></a>00070 } <a name="l00071"></a>00071 } <a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="keywordtype">bool</span> <a name="l00074"></a>00074 Controller::find(<span class="keyword">const</span> Link* link, List::iterator& i) <a name="l00075"></a>00075 { <a name="l00076"></a>00076 <span class="keywordflow">if</span> (link == NULL) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00077"></a>00077 <a name="l00078"></a>00078 i = list_.begin(); <a name="l00079"></a>00079 <span class="keywordflow">while</span> (i != list_.end()) <a name="l00080"></a>00080 <span class="keywordflow">if</span> ((*i)->nexthop() == link) <a name="l00081"></a>00081 <span class="keywordflow">break</span>; <a name="l00082"></a>00082 <span class="keywordflow">else</span> <a name="l00083"></a>00083 i++; <a name="l00084"></a>00084 <span class="keywordflow">return</span> (i != list_.end()); <a name="l00085"></a>00085 } <a name="l00086"></a>00086 <a name="l00087"></a>00087 <span class="keywordtype">bool</span> <a name="l00088"></a>00088 Controller::is_prophet_control(<span class="keyword">const</span> Bundle* b)<span class="keyword"> const</span> <a name="l00089"></a>00089 <span class="keyword"></span>{ <a name="l00090"></a>00090 <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00091"></a>00091 <a name="l00092"></a>00092 std::string str = b->destination_id(); <a name="l00093"></a>00093 <span class="keywordflow">return</span> (str.rfind(<span class="stringliteral">"/prophet"</span>) == <a name="l00094"></a>00094 str.length() - strlen(<span class="stringliteral">"/prophet"</span>)); <a name="l00095"></a>00095 } <a name="l00096"></a>00096 <a name="l00097"></a>00097 <span class="keywordtype">void</span> <a name="l00098"></a>00098 Controller::new_neighbor(<span class="keyword">const</span> Link* link) <a name="l00099"></a>00099 { <a name="l00100"></a>00100 <span class="keywordflow">if</span> (link == NULL) <span class="keywordflow">return</span>; <a name="l00101"></a>00101 <a name="l00102"></a>00102 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"new_neighbor(%s)"</span>,link->remote_eid()); <a name="l00103"></a>00103 <a name="l00104"></a>00104 <span class="comment">// first search for existing Encounter</span> <a name="l00105"></a>00105 List::iterator i; <a name="l00106"></a>00106 <span class="keywordflow">if</span> (find(link,i)) <a name="l00107"></a>00107 { <a name="l00108"></a>00108 <span class="keywordflow">if</span> ((*i)->neighbor_gone()) <a name="l00109"></a>00109 { <a name="l00110"></a>00110 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_INFO,<span class="stringliteral">"encounter-%d: neighbor gone"</span>, <a name="l00111"></a>00111 (*i)->local_instance()); <a name="l00112"></a>00112 <span class="keyword">delete</span> *i; <a name="l00113"></a>00113 list_.erase(i); <a name="l00114"></a>00114 } <a name="l00115"></a>00115 <span class="keywordflow">else</span> <a name="l00116"></a>00116 { <a name="l00117"></a>00117 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"session exists (%s)"</span>,(*i)->name()); <a name="l00118"></a>00118 <span class="keywordflow">return</span>; <span class="comment">// do nothing</span> <a name="l00119"></a>00119 } <a name="l00120"></a>00120 } <a name="l00121"></a>00121 <a name="l00122"></a>00122 <span class="comment">// if none found, create a new Encounter</span> <a name="l00123"></a>00123 Encounter* e = <span class="keyword">new</span> Encounter(link,<span class="keyword">this</span>,<a class="code" href="Controller_8cc.html#bf4d81c4f089c809f460b9c9cac6a682">NEXT_INSTANCE</a>); <a name="l00124"></a>00124 <span class="keywordflow">if</span> (e->neighbor_gone()) <a name="l00125"></a>00125 { <a name="l00126"></a>00126 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_INFO,<span class="stringliteral">"encounter-%d: neighbor gone"</span>, <a name="l00127"></a>00127 e->local_instance()); <a name="l00128"></a>00128 <span class="keyword">delete</span> e; <a name="l00129"></a>00129 } <a name="l00130"></a>00130 <span class="keywordflow">else</span> <a name="l00131"></a>00131 list_.push_back(e); <a name="l00132"></a>00132 } <a name="l00133"></a>00133 <a name="l00134"></a>00134 <span class="keywordtype">void</span> <a name="l00135"></a>00135 Controller::neighbor_gone(<span class="keyword">const</span> Link* link) <a name="l00136"></a>00136 { <a name="l00137"></a>00137 <span class="keywordflow">if</span> (link == NULL) <span class="keywordflow">return</span>; <a name="l00138"></a>00138 <a name="l00139"></a>00139 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"neighbor_gone(%s)"</span>,link->remote_eid()); <a name="l00140"></a>00140 <span class="comment">// search for Encounter</span> <a name="l00141"></a>00141 <span class="comment">// if found, erase from list and delete from memory</span> <a name="l00142"></a>00142 List::iterator i; <a name="l00143"></a>00143 <span class="keywordflow">if</span> (find(link,i)) <a name="l00144"></a>00144 { <a name="l00145"></a>00145 Encounter* e = (*i); <a name="l00146"></a>00146 list_.erase(i); <a name="l00147"></a>00147 <span class="keyword">delete</span> e; <a name="l00148"></a>00148 } <a name="l00149"></a>00149 } <a name="l00150"></a>00150 <a name="l00151"></a>00151 <span class="keywordtype">bool</span> <a name="l00152"></a>00152 Controller::accept_bundle(<span class="keyword">const</span> Bundle* b) <a name="l00153"></a>00153 { <a name="l00154"></a>00154 <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00155"></a>00155 <a name="l00156"></a>00156 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"accept_bundle(%u)"</span>,b->sequence_num()); <a name="l00157"></a>00157 <a name="l00158"></a>00158 <span class="comment">// do we relay to other nodes?</span> <a name="l00159"></a>00159 <span class="keywordflow">if</span> (params_->relay_node() == <span class="keyword">false</span>) <a name="l00160"></a>00160 { <a name="l00161"></a>00161 std::string eid(core_->local_eid()); <a name="l00162"></a>00162 <span class="comment">// if not, limit what bundles are accepted -- reject all unless</span> <a name="l00163"></a>00163 <span class="comment">// src or dst is local eid</span> <a name="l00164"></a>00164 <span class="keywordflow">if</span> (!core_->is_route(eid,b->destination_id()) && <a name="l00165"></a>00165 !core_->is_route(eid,b->source_id())) <a name="l00166"></a>00166 { <a name="l00167"></a>00167 <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00168"></a>00168 } <a name="l00169"></a>00169 } <a name="l00170"></a>00170 <a name="l00171"></a>00171 <span class="comment">// else accept </span> <a name="l00172"></a>00172 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00173"></a>00173 } <a name="l00174"></a>00174 <a name="l00175"></a>00175 <span class="keywordtype">void</span> <a name="l00176"></a>00176 Controller::handle_bundle_received(<span class="keyword">const</span> Bundle* b, <span class="keyword">const</span> Link* link) <a name="l00177"></a>00177 { <a name="l00178"></a>00178 <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span>; <a name="l00179"></a>00179 <a name="l00180"></a>00180 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"handle_bundle_received(%d,%s)"</span>, <a name="l00181"></a>00181 b->sequence_num(), (link == NULL) ? <span class="stringliteral">"NULL"</span> : link->remote_eid()); <a name="l00182"></a>00182 <a name="l00183"></a>00183 <span class="keywordflow">if</span> (link == NULL) <a name="l00184"></a>00184 <span class="keywordflow">return</span>; <a name="l00185"></a>00185 <a name="l00186"></a>00186 Encounter* e = NULL; <a name="l00187"></a>00187 List::iterator i; <a name="l00188"></a>00188 <span class="comment">// find the appropriate Encounter protocol handler</span> <a name="l00189"></a>00189 <span class="keywordflow">if</span> (find(link,i)) <a name="l00190"></a>00190 { <a name="l00191"></a>00191 e = *i; <a name="l00192"></a>00192 <span class="keywordflow">if</span> (e->neighbor_gone()) <a name="l00193"></a>00193 { <a name="l00194"></a>00194 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_INFO,<span class="stringliteral">"encounter-%d: neighbor gone"</span>, <a name="l00195"></a>00195 e->local_instance()); <a name="l00196"></a>00196 <span class="keyword">delete</span> e; <a name="l00197"></a>00197 list_.erase(i); <a name="l00198"></a>00198 e = NULL; <a name="l00199"></a>00199 } <a name="l00200"></a>00200 } <a name="l00201"></a>00201 <span class="keywordflow">if</span> (e == NULL) <a name="l00202"></a>00202 { <a name="l00203"></a>00203 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_INFO,<span class="stringliteral">"unable to find session to assign bundle from %s"</span>, <a name="l00204"></a>00204 b->source_id().c_str()); <a name="l00205"></a>00205 <span class="keywordflow">return</span>; <a name="l00206"></a>00206 } <a name="l00207"></a>00207 <span class="comment">// handle the protocol message</span> <a name="l00208"></a>00208 <span class="keywordflow">if</span> (is_prophet_control(b)) <a name="l00209"></a>00209 { <a name="l00210"></a>00210 <span class="comment">// read contents from core's bundle payload into BundleBuffer</span> <a name="l00211"></a>00211 <span class="keywordtype">size_t</span> <a class="code" href="num2sdnv_8c.html#fed088663f8704004425cdae2120b9b3">len</a> = b->size(); <a name="l00212"></a>00212 u_char* <a class="code" href="num2sdnv_8c.html#a81cdcc7ff6987bc85c073253e32715f">buf</a> = <span class="keyword">new</span> u_char[len]; <a name="l00213"></a>00213 <span class="keywordflow">if</span> (!core_->read_bundle(b,buf,len)) <a name="l00214"></a>00214 { <a name="l00215"></a>00215 <span class="keyword">delete</span> [] buf; <a name="l00216"></a>00216 <span class="comment">// signal error state?!?</span> <a name="l00217"></a>00217 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_ERR,<span class="stringliteral">"BundleCore failed to read bundle buffer"</span>); <a name="l00218"></a>00218 core_->drop_bundle(b); <a name="l00219"></a>00219 <span class="keywordflow">return</span>; <a name="l00220"></a>00220 } <a name="l00221"></a>00221 <span class="comment">// parse into ProphetTLV</span> <a name="l00222"></a>00222 ProphetTLV* tlv = ProphetTLV::deserialize(b->source_id(), <a name="l00223"></a>00223 b->destination_id(), buf, len); <a name="l00224"></a>00224 <a name="l00225"></a>00225 <span class="keyword">delete</span> [] buf; <a name="l00226"></a>00226 <a name="l00227"></a>00227 <span class="keywordflow">if</span> (tlv == NULL) <a name="l00228"></a>00228 { <a name="l00229"></a>00229 <span class="comment">// signal error state?!?</span> <a name="l00230"></a>00230 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_ERR,<span class="stringliteral">"ProphetTLV failed to deserialize"</span>); <a name="l00231"></a>00231 core_->drop_bundle(b); <a name="l00232"></a>00232 <span class="keywordflow">return</span>; <a name="l00233"></a>00233 } <a name="l00234"></a>00234 <a name="l00235"></a>00235 e->receive_tlv(tlv); <a name="l00236"></a>00236 <span class="keywordflow">if</span> (e->neighbor_gone()) <a name="l00237"></a>00237 { <a name="l00238"></a>00238 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_INFO,<span class="stringliteral">"encounter-%d: neighbor gone"</span>, <a name="l00239"></a>00239 e->local_instance()); <a name="l00240"></a>00240 <span class="keyword">delete</span> e; <a name="l00241"></a>00241 list_.erase(i); <a name="l00242"></a>00242 } <a name="l00243"></a>00243 <a name="l00244"></a>00244 <span class="comment">// signal back to core that this bundle can be dropped now</span> <a name="l00245"></a>00245 core_->drop_bundle(b); <a name="l00246"></a>00246 } <a name="l00247"></a>00247 <span class="keywordflow">else</span> <a name="l00248"></a>00248 { <a name="l00249"></a>00249 <span class="comment">// decrement the request count</span> <a name="l00250"></a>00250 e->handle_bundle_received(b); <a name="l00251"></a>00251 } <a name="l00252"></a>00252 } <a name="l00253"></a>00253 <a name="l00254"></a>00254 <span class="keywordtype">void</span> <a name="l00255"></a>00255 Controller::handle_bundle_transmitted(<span class="keyword">const</span> Bundle* b, <span class="keyword">const</span> Link* l) <a name="l00256"></a>00256 { <a name="l00257"></a>00257 <span class="keywordflow">if</span> (b == NULL) <span class="keywordflow">return</span>; <a name="l00258"></a>00258 <span class="keywordflow">if</span> (l == NULL) <span class="keywordflow">return</span>; <a name="l00259"></a>00259 <span class="keywordflow">if</span> (is_prophet_control(b)) <a name="l00260"></a>00260 { <a name="l00261"></a>00261 core()->drop_bundle(b); <a name="l00262"></a>00262 <span class="keywordflow">return</span>; <a name="l00263"></a>00263 } <a name="l00264"></a>00264 stats_.update_stats(b,nodes_.p_value(l->remote_eid())); <a name="l00265"></a>00265 repository_->change_priority(b); <a name="l00266"></a>00266 } <a name="l00267"></a>00267 <a name="l00268"></a>00268 <span class="keywordtype">void</span> <a name="l00269"></a>00269 Controller::ack(<span class="keyword">const</span> Bundle* b) <a name="l00270"></a>00270 { <a name="l00271"></a>00271 <span class="keywordflow">if</span> (b == NULL || is_prophet_control(b)) <span class="keywordflow">return</span>; <a name="l00272"></a>00272 <a name="l00273"></a>00273 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"ack(%u)"</span>, b->sequence_num()); <a name="l00274"></a>00274 <span class="comment">// insert ack, drop from stats, drop from bundles, drop from core</span> <a name="l00275"></a>00275 Oracle::ack(b); <a name="l00276"></a>00276 } <a name="l00277"></a>00277 <a name="l00278"></a>00278 <span class="keywordtype">void</span> <a name="l00279"></a>00279 Controller::set_queue_policy() <a name="l00280"></a>00280 { <a name="l00281"></a>00281 <span class="comment">// read current values to decide whether to create new comparator</span> <a name="l00282"></a>00282 QueueComp* qc = <span class="keyword">const_cast<</span>QueueComp*<span class="keyword">></span>(repository_->get_comparator()); <a name="l00283"></a>00283 <a name="l00284"></a>00284 <span class="keywordflow">if</span> (qc->qp() != params_->qp() || params_->min_forward() != qc->min_fwd_) <a name="l00285"></a>00285 { <a name="l00286"></a>00286 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"set_queue_policy (%s -> %s)"</span>, <a name="l00287"></a>00287 QueuePolicy::qp_to_str(qc->qp()), <a name="l00288"></a>00288 QueuePolicy::qp_to_str(params_->qp())); <a name="l00289"></a>00289 <a name="l00290"></a>00290 qc = QueuePolicy::policy(params_->qp(), &stats_, &nodes_, <a name="l00291"></a>00291 params_->min_forward()); <a name="l00292"></a>00292 <span class="comment">// repository_ cleans up previous qc object</span> <a name="l00293"></a>00293 repository_->set_comparator(qc); <a name="l00294"></a>00294 } <a name="l00295"></a>00295 } <a name="l00296"></a>00296 <a name="l00297"></a>00297 <span class="keywordtype">void</span> <a name="l00298"></a>00298 Controller::set_hello_interval() <a name="l00299"></a>00299 { <a name="l00300"></a>00300 <span class="keywordflow">if</span> (timeout_ != ((u_int)(params_->hello_interval_ * 100))) <a name="l00301"></a>00301 { <a name="l00302"></a>00302 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"set_hello_interval (%u -> %u)"</span>, <a name="l00303"></a>00303 timeout_/100, params_->hello_interval_); <a name="l00304"></a>00304 <a name="l00305"></a>00305 timeout_ = params_->hello_interval_ * 100; <a name="l00306"></a>00306 <span class="comment">// alert the active peering sessions to parameter change</span> <a name="l00307"></a>00307 <span class="keywordflow">for</span> (List::iterator i = list_.begin(); i != list_.end(); i++) <a name="l00308"></a>00308 (*i)->hello_interval_changed(); <a name="l00309"></a>00309 } <a name="l00310"></a>00310 } <a name="l00311"></a>00311 <a name="l00312"></a>00312 <span class="keywordtype">void</span> <a name="l00313"></a>00313 Controller::set_max_route() <a name="l00314"></a>00314 { <a name="l00315"></a>00315 <span class="keywordflow">if</span> (max_route_ != ((u_int)(params_->max_table_size_))) <a name="l00316"></a>00316 { <a name="l00317"></a>00317 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"set_max_route (%u -> %u)"</span>, <a name="l00318"></a>00318 max_route_, params_->max_table_size_); <a name="l00319"></a>00319 nodes_.set_max_route(max_route_); <a name="l00320"></a>00320 } <a name="l00321"></a>00321 } <a name="l00322"></a>00322 <a name="l00323"></a>00323 <span class="keywordtype">void</span> <a name="l00324"></a>00324 Controller::handle_timeout() <a name="l00325"></a>00325 { <a name="l00326"></a>00326 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"handle_timeout"</span>); <a name="l00327"></a>00327 <a name="l00328"></a>00328 acks_.expire(); <a name="l00329"></a>00329 nodes_.age_nodes(); <a name="l00330"></a>00330 nodes_.truncate(params_->epsilon()); <a name="l00331"></a>00331 <a name="l00332"></a>00332 <span class="comment">// schedule new alarm</span> <a name="l00333"></a>00333 alarm_ = core_->create_alarm(<span class="keyword">this</span>,timeout_ * 100); <a name="l00334"></a>00334 <a name="l00335"></a>00335 List::iterator i = list_.begin(); <a name="l00336"></a>00336 <span class="keywordflow">while</span> (i != list_.end()) <a name="l00337"></a>00337 { <a name="l00338"></a>00338 <span class="keywordflow">if</span> ((*i)->neighbor_gone()) <a name="l00339"></a>00339 { <a name="l00340"></a>00340 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_INFO,<span class="stringliteral">"encounter-%d: neighbor gone"</span>, <a name="l00341"></a>00341 (*i)->local_instance()); <a name="l00342"></a>00342 <span class="keyword">delete</span> *i; <a name="l00343"></a>00343 list_.erase(i++); <a name="l00344"></a>00344 } <a name="l00345"></a>00345 <span class="keywordflow">else</span> <a name="l00346"></a>00346 i++; <a name="l00347"></a>00347 } <a name="l00348"></a>00348 } <a name="l00349"></a>00349 <a name="l00350"></a>00350 <span class="keywordtype">void</span> <a name="l00351"></a>00351 Controller::shutdown() <a name="l00352"></a>00352 { <a name="l00353"></a>00353 <a class="code" href="BundleOffer_8cc.html#259e390b81bb640af4691776b15a9116">LOG</a>(LOG_DEBUG,<span class="stringliteral">"shutdown"</span>); <a name="l00354"></a>00354 <span class="keywordflow">if</span> (alarm_ != NULL && alarm_->pending()) <a name="l00355"></a>00355 <span class="comment">// host's timer implementation will clean this up</span> <a name="l00356"></a>00356 alarm_->cancel(); <a name="l00357"></a>00357 <span class="keywordflow">while</span> (! list_.empty()) <a name="l00358"></a>00358 { <a name="l00359"></a>00359 <span class="keyword">delete</span> list_.front(); <a name="l00360"></a>00360 list_.pop_front(); <a name="l00361"></a>00361 } <a name="l00362"></a>00362 } <a name="l00363"></a>00363 <a name="l00364"></a>00364 }; <span class="comment">// namespace prophet</span> </pre></div></div> <hr size="1"><address style="text-align: right;"><small>Generated on Mon Jul 21 14:09:39 2008 for DTN Reference Implementation by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address> </body> </html>