<!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: BundleInfoCache.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>BundleInfoCache.cc</h1><a href="BundleInfoCache_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 2007-2008 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 <<a class="code" href="dtn-config_8h.html">dtn-config.h</a>></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="BundleInfoCache_8h.html">BundleInfoCache.h</a>"</span> <a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="keyword">namespace </span>dtn { <a name="l00024"></a>00024 <a name="l00025"></a>00025 <span class="comment">//----------------------------------------------------------------------</span> <a name="l00026"></a><a class="code" href="classdtn_1_1BundleInfoCache.html#60d876213e40403dc2c442a5a0700f10">00026</a> <a class="code" href="classdtn_1_1BundleInfoCache.html#60d876213e40403dc2c442a5a0700f10" title="Constructor that takes the logpath and the number of entries to maintain in the cache...">BundleInfoCache::BundleInfoCache</a>(<span class="keyword">const</span> std::string& logpath, <span class="keywordtype">size_t</span> capacity) <a name="l00027"></a>00027 : cache_(logpath, CacheCapacityHelper(capacity), <a name="l00028"></a>00028 false <span class="comment">/* no reorder on get() */</span> ) <a name="l00029"></a>00029 { <a name="l00030"></a>00030 } <a name="l00031"></a>00031 <a name="l00032"></a>00032 <span class="comment">//----------------------------------------------------------------------</span> <a name="l00033"></a>00033 <span class="keywordtype">bool</span> <a name="l00034"></a><a class="code" href="classdtn_1_1BundleInfoCache.html#5c7594a62ad46e3b8eb9939092e2167c">00034</a> BundleInfoCache::add_entry(<span class="keyword">const</span> <a class="code" href="classdtn_1_1Bundle.html" title="The internal representation of a bundle.">Bundle</a>* bundle, <span class="keyword">const</span> <a class="code" href="classdtn_1_1EndpointID.html">EndpointID</a>& prevhop) <a name="l00035"></a>00035 { <a name="l00036"></a>00036 <a class="code" href="classdtn_1_1GbofId.html" title="Class definition for a GBOF ID (Global Bundle Or Fragment ID).">GbofId</a> id(bundle-><a class="code" href="classdtn_1_1Bundle.html#2dae8a97270a95799acf45d859eaf866" title="Accessors.">source</a>(), <a name="l00037"></a>00037 bundle-><a class="code" href="classdtn_1_1Bundle.html#13cd9ab7b010f09562170e2a57242209" title="Accessors.">creation_ts</a>(), <a name="l00038"></a>00038 bundle-><a class="code" href="classdtn_1_1Bundle.html#d6c74eba219bfe55854cf7a90e210cca" title="Accessors.">is_fragment</a>(), <a name="l00039"></a>00039 bundle-><a class="code" href="classdtn_1_1Bundle.html#3bc0b88b547620b4029eba4809a73447" title="Accessors.">payload</a>().<a class="code" href="classdtn_1_1BundlePayload.html#56b3851ad789c4dbf019a32d557b7453" title="The payload length.">length</a>(), <a name="l00040"></a>00040 bundle-><a class="code" href="classdtn_1_1Bundle.html#76cf6a44f566aa22e2a98007bf233ee2" title="Accessors.">frag_offset</a>()); <a name="l00041"></a>00041 <a name="l00042"></a>00042 Cache::Handle h; <a name="l00043"></a>00043 <span class="keywordtype">bool</span> ok = <a class="code" href="classdtn_1_1BundleInfoCache.html#f6ff9bd05b18500981aac3a4d7fce846">cache_</a>.put_and_pin(<span class="keywordtype">id</span>, prevhop, &h); <a name="l00044"></a>00044 <span class="keywordflow">if</span> (!ok) { <a name="l00045"></a>00045 <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00046"></a>00046 } <a name="l00047"></a>00047 <a name="l00048"></a>00048 h.unpin(); <a name="l00049"></a>00049 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00050"></a>00050 } <a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="comment">//----------------------------------------------------------------------</span> <a name="l00053"></a>00053 <span class="keywordtype">bool</span> <a name="l00054"></a><a class="code" href="classdtn_1_1BundleInfoCache.html#ebcfd7dc9e1e14a37e53713fc7f6259e">00054</a> <a class="code" href="classdtn_1_1BundleInfoCache.html#ebcfd7dc9e1e14a37e53713fc7f6259e" title="Check if the given bundle is in the cache, returning the EID of the node from which...">BundleInfoCache::lookup</a>(<span class="keyword">const</span> <a class="code" href="classdtn_1_1Bundle.html" title="The internal representation of a bundle.">Bundle</a>* bundle, <a class="code" href="classdtn_1_1EndpointID.html">EndpointID</a>* prevhop) <a name="l00055"></a>00055 { <a name="l00056"></a>00056 <a class="code" href="classdtn_1_1GbofId.html" title="Class definition for a GBOF ID (Global Bundle Or Fragment ID).">GbofId</a> id(bundle-><a class="code" href="classdtn_1_1Bundle.html#2dae8a97270a95799acf45d859eaf866" title="Accessors.">source</a>(), <a name="l00057"></a>00057 bundle-><a class="code" href="classdtn_1_1Bundle.html#13cd9ab7b010f09562170e2a57242209" title="Accessors.">creation_ts</a>(), <a name="l00058"></a>00058 bundle-><a class="code" href="classdtn_1_1Bundle.html#d6c74eba219bfe55854cf7a90e210cca" title="Accessors.">is_fragment</a>(), <a name="l00059"></a>00059 bundle-><a class="code" href="classdtn_1_1Bundle.html#3bc0b88b547620b4029eba4809a73447" title="Accessors.">payload</a>().<a class="code" href="classdtn_1_1BundlePayload.html#56b3851ad789c4dbf019a32d557b7453" title="The payload length.">length</a>(), <a name="l00060"></a>00060 bundle-><a class="code" href="classdtn_1_1Bundle.html#76cf6a44f566aa22e2a98007bf233ee2" title="Accessors.">frag_offset</a>()); <a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1BundleInfoCache.html#f6ff9bd05b18500981aac3a4d7fce846">cache_</a>.get(<span class="keywordtype">id</span>, prevhop); <a name="l00063"></a>00063 } <a name="l00064"></a>00064 <a name="l00065"></a>00065 <span class="comment">//----------------------------------------------------------------------</span> <a name="l00066"></a>00066 <span class="keywordtype">void</span> <a name="l00067"></a><a class="code" href="classdtn_1_1BundleInfoCache.html#50298b94d5cc2c266164e2c75ff6b8b3">00067</a> <a class="code" href="classdtn_1_1BundleInfoCache.html#50298b94d5cc2c266164e2c75ff6b8b3" title="Flush the cache.">BundleInfoCache::evict_all</a>() <a name="l00068"></a>00068 { <a name="l00069"></a>00069 <a class="code" href="classdtn_1_1BundleInfoCache.html#f6ff9bd05b18500981aac3a4d7fce846">cache_</a>.evict_all(); <a name="l00070"></a>00070 } <a name="l00071"></a>00071 <a name="l00072"></a>00072 } <span class="comment">// namespace dtn</span> </pre></div></div> <hr size="1"><address style="text-align: right;"><small>Generated on Mon Jul 21 14:09:38 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>