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

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<h1>NullConvergenceLayer.cc</h1><a href="NullConvergenceLayer_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 Intel Corporation</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 &lt;oasys/util/OptParser.h&gt;</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="NullConvergenceLayer_8h.html">NullConvergenceLayer.h</a>"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="BundleDaemon_8h.html">bundling/BundleDaemon.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">struct </span>NullConvergenceLayer::Params NullConvergenceLayer::defaults_;
<a name="l00028"></a>00028 
<a name="l00029"></a>00029 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00030"></a>00030 void
<a name="l00031"></a><a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html#1c4a75f1fd561a5495b1ce9a4a036134">00031</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html" title="The null convergence layer consumes all bundles immediately and does no actual transmission...">NullConvergenceLayer</a>::<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>::serialize(oasys::SerializeAction* a)
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033     a-&gt;process(<span class="stringliteral">"can_transmit"</span>, &amp;<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html#5a9eef45c337c0e0eee3ca1dce8db5a8" title="Whether or not the link can actually send bundles (default true).">can_transmit_</a>);
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035 
<a name="l00036"></a>00036 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00037"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#5e9247664320f4bd450e15c6319f7282">00037</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#5e9247664320f4bd450e15c6319f7282">NullConvergenceLayer::NullConvergenceLayer</a>()
<a name="l00038"></a>00038   : <a class="code" href="classdtn_1_1ConvergenceLayer.html" title="The abstract interface for a convergence layer.">ConvergenceLayer</a>(<span class="stringliteral">"NullConvergenceLayer"</span>, <span class="stringliteral">"null"</span>)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040     <a class="code" href="classdtn_1_1NullConvergenceLayer.html#4414c5004106ebc66c4f6db82c34b8e2" title="Default parameters.">defaults_</a>.<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html#5a9eef45c337c0e0eee3ca1dce8db5a8" title="Whether or not the link can actually send bundles (default true).">can_transmit_</a> = <span class="keyword">true</span>;
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042 
<a name="l00043"></a>00043 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00044"></a>00044 <span class="keywordtype">bool</span>
<a name="l00045"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#cdd1371178d8bf73abe5e767ddb899b4">00045</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#cdd1371178d8bf73abe5e767ddb899b4" title="Helper function to parse link parameters.">NullConvergenceLayer::parse_link_params</a>(<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>* params,
<a name="l00046"></a>00046                                         <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>** argv,
<a name="l00047"></a>00047                                         <span class="keyword">const</span> <span class="keywordtype">char</span>** invalidp)
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049     oasys::OptParser p;
<a name="l00050"></a>00050     p.addopt(<span class="keyword">new</span> oasys::BoolOpt(<span class="stringliteral">"can_transmit"</span>, &amp;params-&gt;<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html#5a9eef45c337c0e0eee3ca1dce8db5a8" title="Whether or not the link can actually send bundles (default true).">can_transmit_</a>));
<a name="l00051"></a>00051     <span class="keywordflow">return</span> p.parse(argc, argv, invalidp);
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053 
<a name="l00054"></a>00054 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00055"></a>00055 <span class="keywordtype">bool</span>
<a name="l00056"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#7f0d1d623aa575d8c366da2ef197d3ae">00056</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#7f0d1d623aa575d8c366da2ef197d3ae" title="Virtual from ConvergenceLayer.">NullConvergenceLayer::init_link</a>(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>&amp; link,
<a name="l00057"></a>00057                                 <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>* argv[])
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link != NULL);
<a name="l00060"></a>00060     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(!link-&gt;isdeleted());
<a name="l00061"></a>00061     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link-&gt;cl_info() == NULL);
<a name="l00062"></a>00062     
<a name="l00063"></a>00063     log_debug(<span class="stringliteral">"adding %s link %s"</span>, link-&gt;type_str(), link-&gt;nexthop());
<a name="l00064"></a>00064 
<a name="l00065"></a>00065     <span class="comment">// Create a new parameters structure, parse the options, and store</span>
<a name="l00066"></a>00066     <span class="comment">// them in the link's cl info slot</span>
<a name="l00067"></a>00067     <a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>* params = <span class="keyword">new</span> <a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>(<a class="code" href="classdtn_1_1NullConvergenceLayer.html#4414c5004106ebc66c4f6db82c34b8e2" title="Default parameters.">defaults_</a>);
<a name="l00068"></a>00068 
<a name="l00069"></a>00069     <span class="keyword">const</span> <span class="keywordtype">char</span>* invalid;
<a name="l00070"></a>00070     <span class="keywordflow">if</span> (! <a class="code" href="classdtn_1_1NullConvergenceLayer.html#cdd1371178d8bf73abe5e767ddb899b4" title="Helper function to parse link parameters.">parse_link_params</a>(params, argc, argv, &amp;invalid)) {
<a name="l00071"></a>00071         log_err(<span class="stringliteral">"error parsing link options: invalid option '%s'"</span>, invalid);
<a name="l00072"></a>00072         <span class="keyword">delete</span> params;
<a name="l00073"></a>00073         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00074"></a>00074     }
<a name="l00075"></a>00075     link-&gt;set_cl_info(params);
<a name="l00076"></a>00076     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078 
<a name="l00079"></a>00079 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00080"></a>00080 <span class="keywordtype">bool</span>
<a name="l00081"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#51dd570deac224a9b18a641b5a68a56b">00081</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#51dd570deac224a9b18a641b5a68a56b" title="Virtual from ConvergenceLayer.">NullConvergenceLayer::reconfigure_link</a>(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>&amp; link,
<a name="l00082"></a>00082                                        <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>* argv[])
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link != NULL);
<a name="l00085"></a>00085     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(!link-&gt;isdeleted());
<a name="l00086"></a>00086     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link-&gt;cl_info() != NULL);
<a name="l00087"></a>00087     
<a name="l00088"></a>00088     <a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>* params = <span class="keyword">dynamic_cast&lt;</span><a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>*<span class="keyword">&gt;</span>(link-&gt;cl_info());
<a name="l00089"></a>00089     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(params != NULL);
<a name="l00090"></a>00090     
<a name="l00091"></a>00091     <span class="keyword">const</span> <span class="keywordtype">char</span>* invalid;
<a name="l00092"></a>00092     <span class="keywordflow">if</span> (! <a class="code" href="classdtn_1_1NullConvergenceLayer.html#cdd1371178d8bf73abe5e767ddb899b4" title="Helper function to parse link parameters.">parse_link_params</a>(params, argc, argv, &amp;invalid)) {
<a name="l00093"></a>00093         log_err(<span class="stringliteral">"reconfigure_link: invalid parameter %s"</span>, invalid);
<a name="l00094"></a>00094         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00095"></a>00095     }
<a name="l00096"></a>00096 
<a name="l00097"></a>00097     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099 
<a name="l00100"></a>00100 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00101"></a>00101 <span class="keywordtype">void</span>
<a name="l00102"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#8eb0b6c866434fce7368cff988b92445">00102</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#8eb0b6c866434fce7368cff988b92445" title="Virtual from ConvergenceLayer.">NullConvergenceLayer::delete_link</a>(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>&amp; link)
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link != NULL);
<a name="l00105"></a>00105     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(!link-&gt;isdeleted());
<a name="l00106"></a>00106     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link-&gt;cl_info() != NULL);
<a name="l00107"></a>00107 
<a name="l00108"></a>00108     log_debug(<span class="stringliteral">"deleting link %s"</span>, link-&gt;name());
<a name="l00109"></a>00109     
<a name="l00110"></a>00110     <span class="keyword">delete</span> link-&gt;cl_info();
<a name="l00111"></a>00111     link-&gt;set_cl_info(NULL);
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 
<a name="l00114"></a>00114 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00115"></a>00115 <span class="keywordtype">bool</span>
<a name="l00116"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#ee3556e60ea792f4dbceec3850bb641f">00116</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#ee3556e60ea792f4dbceec3850bb641f" title="Virtual from ConvergenceLayer.">NullConvergenceLayer::open_contact</a>(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#5f869544c85c75b5a85a14d6e90d7ff7" title="Typedef for a reference on a contact.">ContactRef</a>&amp; contact)
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118     <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a> link = contact-&gt;link();
<a name="l00119"></a>00119     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link != NULL);
<a name="l00120"></a>00120     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(!link-&gt;isdeleted());
<a name="l00121"></a>00121 
<a name="l00122"></a>00122     <a class="code" href="classdtn_1_1BundleDaemon.html#370a80f7dd9fd9297e76d7f830d737a8" title="Queues the event at the tail of the queue for processing by the daemon thread.">BundleDaemon::post</a>(<span class="keyword">new</span> <a class="code" href="classdtn_1_1ContactUpEvent.html" title="Event class for contact up events.">ContactUpEvent</a>(contact));
<a name="l00123"></a>00123     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 
<a name="l00126"></a>00126 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00127"></a>00127 <span class="keywordtype">void</span>
<a name="l00128"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#04f637451c203e04bd8de32fff52bf48">00128</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#04f637451c203e04bd8de32fff52bf48" title="Virtual from ConvergenceLayer.">NullConvergenceLayer::bundle_queued</a>(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>&amp; link, <span class="keyword">const</span> <a class="code" href="namespacedtn.html#87094f3b26b9f1d469e616d311ae57b1" title="Class definition for a Bundle reference.">BundleRef</a>&amp; bundle)
<a name="l00129"></a>00129 {
<a name="l00130"></a>00130     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link != NULL);
<a name="l00131"></a>00131     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(!link-&gt;isdeleted());
<a name="l00132"></a>00132 
<a name="l00133"></a>00133     <a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>* params = (<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>*)link-&gt;cl_info();
<a name="l00134"></a>00134 
<a name="l00135"></a>00135     <span class="keywordflow">if</span> (! params-&gt;can_transmit_) {
<a name="l00136"></a>00136         <span class="keywordflow">return</span>;
<a name="l00137"></a>00137     }
<a name="l00138"></a>00138     
<a name="l00139"></a>00139     <span class="keyword">const</span> <a class="code" href="classdtn_1_1BlockInfoVec.html" title="Class for a vector of BlockInfo structures.">BlockInfoVec</a>* blocks = bundle-&gt;xmit_blocks()-&gt;find_blocks(link);
<a name="l00140"></a>00140     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(blocks != NULL);
<a name="l00141"></a>00141     <span class="keywordtype">size_t</span> total_len = <a class="code" href="classdtn_1_1BundleProtocol.html#a1dedd9ea4300339bc2a3f7a231ca5dd" title="Return the total length of the formatted bundle block data.">BundleProtocol::total_length</a>(blocks);
<a name="l00142"></a>00142     
<a name="l00143"></a>00143     log_debug(<span class="stringliteral">"send_bundle *%p to *%p (total len %zu)"</span>,
<a name="l00144"></a>00144               bundle.object(), link.object(), total_len);
<a name="l00145"></a>00145     
<a name="l00146"></a>00146     link-&gt;del_from_queue(bundle, total_len);
<a name="l00147"></a>00147     link-&gt;add_to_inflight(bundle, total_len);
<a name="l00148"></a>00148     
<a name="l00149"></a>00149     <a class="code" href="classdtn_1_1BundleDaemon.html#370a80f7dd9fd9297e76d7f830d737a8" title="Queues the event at the tail of the queue for processing by the daemon thread.">BundleDaemon::post</a>(
<a name="l00150"></a>00150         <span class="keyword">new</span> <a class="code" href="classdtn_1_1BundleTransmittedEvent.html" title="Event class for bundle or fragment transmission.">BundleTransmittedEvent</a>(bundle.object(), link-&gt;contact(), link, total_len, 0));
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152 
<a name="l00153"></a>00153 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00154"></a>00154 <span class="keywordtype">void</span>
<a name="l00155"></a><a class="code" href="classdtn_1_1NullConvergenceLayer.html#49d26a539bed820d5009ab763b184714">00155</a> <a class="code" href="classdtn_1_1NullConvergenceLayer.html#49d26a539bed820d5009ab763b184714" title="Virtual from ConvergenceLayer.">NullConvergenceLayer::cancel_bundle</a>(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>&amp; link, <span class="keyword">const</span> <a class="code" href="namespacedtn.html#87094f3b26b9f1d469e616d311ae57b1" title="Class definition for a Bundle reference.">BundleRef</a>&amp; bundle)
<a name="l00156"></a>00156 {
<a name="l00157"></a>00157     <a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>* params = (<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html" title="Link parameters.">Params</a>*)link-&gt;cl_info();
<a name="l00158"></a>00158     
<a name="l00159"></a>00159     <span class="comment">// if configured to not sent bundles, and if the bundle in</span>
<a name="l00160"></a>00160     <span class="comment">// question is still on the link queue, then it can be cancelled</span>
<a name="l00161"></a>00161     <span class="keywordflow">if</span> (! params-&gt;<a class="code" href="classdtn_1_1NullConvergenceLayer_1_1Params.html#5a9eef45c337c0e0eee3ca1dce8db5a8" title="Whether or not the link can actually send bundles (default true).">can_transmit_</a>&amp;&amp; link-&gt;queue()-&gt;contains(bundle)) {
<a name="l00162"></a>00162         log_debug(<span class="stringliteral">"NullConvergenceLayer::cancel_bundle: "</span>
<a name="l00163"></a>00163                   <span class="stringliteral">"cancelling bundle *%p on *%p"</span>, bundle.object(), link.object());
<a name="l00164"></a>00164         <a class="code" href="classdtn_1_1BundleDaemon.html#370a80f7dd9fd9297e76d7f830d737a8" title="Queues the event at the tail of the queue for processing by the daemon thread.">BundleDaemon::post</a>(<span class="keyword">new</span> <a class="code" href="classdtn_1_1BundleSendCancelledEvent.html" title="Event class for succesful cancellation of a bundle send.">BundleSendCancelledEvent</a>(bundle.object(), link));
<a name="l00165"></a>00165         <span class="keywordflow">return</span>;
<a name="l00166"></a>00166     } <span class="keywordflow">else</span> {
<a name="l00167"></a>00167         log_debug(<span class="stringliteral">"NullConvergenceLayer::cancel_bundle: "</span>
<a name="l00168"></a>00168                   <span class="stringliteral">"not cancelling bundle *%p on *%p since !is_queued()"</span>,
<a name="l00169"></a>00169                   bundle.object(), link.object());
<a name="l00170"></a>00170     }
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172 
<a name="l00173"></a>00173 } <span class="comment">// namespace dtn</span>
</pre></div></div>
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