<!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: APIBlockProcessor.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>APIBlockProcessor.cc</h1><a href="APIBlockProcessor_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 <<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="APIBlockProcessor_8h.html">APIBlockProcessor.h</a>"</span> <a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="BlockInfo_8h.html">BlockInfo.h</a>"</span> <a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="BundleProtocol_8h.html">BundleProtocol.h</a>"</span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="keyword">namespace </span>dtn { <a name="l00027"></a>00027 <a name="l00028"></a>00028 <span class="keyword">template</span> <> APIBlockProcessor* <a name="l00029"></a>00029 oasys::Singleton<APIBlockProcessor>::instance_ = NULL; <a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="comment">//----------------------------------------------------------------------</span> <a name="l00032"></a><a class="code" href="classdtn_1_1APIBlockProcessor.html#b40aac6e3b39add4ac8c7c1ef28250b7">00032</a> <a class="code" href="classdtn_1_1APIBlockProcessor.html#b40aac6e3b39add4ac8c7c1ef28250b7" title="Constructor.">APIBlockProcessor::APIBlockProcessor</a>() : <a name="l00033"></a>00033 <a class="code" href="classdtn_1_1BlockProcessor.html" title="Base class for the protocol handling of bundle blocks, including the core primary...">BlockProcessor</a>(<a class="code" href="classdtn_1_1BundleProtocol.html" title="Centralized class used to convert a Bundle to / from the bundle protocol specification...">BundleProtocol</a>::API_EXTENSION_BLOCK) <a name="l00034"></a>00034 { <a name="l00035"></a>00035 } <a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="comment">//----------------------------------------------------------------------</span> <a name="l00038"></a>00038 <span class="keywordtype">int</span> <a name="l00039"></a><a class="code" href="classdtn_1_1APIBlockProcessor.html#f1f1e31555a6065383178d8f2b009a39">00039</a> APIBlockProcessor::consume(<a class="code" href="classdtn_1_1Bundle.html" title="The internal representation of a bundle.">Bundle</a>* bundle, <a name="l00040"></a>00040 <a class="code" href="classdtn_1_1BlockInfo.html" title="Class used to store unparsed bundle blocks and associated metadata about them.">BlockInfo</a>* block, <a name="l00041"></a>00041 u_char* <a class="code" href="num2sdnv_8c.html#a81cdcc7ff6987bc85c073253e32715f">buf</a>, <a name="l00042"></a>00042 <span class="keywordtype">size_t</span> <a class="code" href="num2sdnv_8c.html#fed088663f8704004425cdae2120b9b3">len</a>) <a name="l00043"></a>00043 { <a name="l00044"></a>00044 (void)bundle; <a name="l00045"></a>00045 (void)block; <a name="l00046"></a>00046 (void)buf; <a name="l00047"></a>00047 (void)len; <a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="keywordflow">return</span> -1; <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">int</span> <a name="l00054"></a><a class="code" href="classdtn_1_1APIBlockProcessor.html#b0b0e9cd6ba6360ecf479a4d0ced218f">00054</a> <a class="code" href="classdtn_1_1APIBlockProcessor.html#b0b0e9cd6ba6360ecf479a4d0ced218f" title="Virtual from BlockProcessor.">APIBlockProcessor::generate</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 name="l00055"></a>00055 <a class="code" href="classdtn_1_1BlockInfoVec.html" title="Class for a vector of BlockInfo structures.">BlockInfoVec</a>* xmit_blocks, <a name="l00056"></a>00056 <a class="code" href="classdtn_1_1BlockInfo.html" title="Class used to store unparsed bundle blocks and associated metadata about them.">BlockInfo</a>* block, <a name="l00057"></a>00057 <span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>& link, <a name="l00058"></a>00058 <span class="keywordtype">bool</span> last) <a name="l00059"></a>00059 { <a name="l00060"></a>00060 (void)bundle; <a name="l00061"></a>00061 (void)link; <a name="l00062"></a>00062 <a name="l00063"></a>00063 <span class="comment">// there must be a corresponding source block created at the API</span> <a name="l00064"></a>00064 <span class="keyword">const</span> <a class="code" href="classdtn_1_1BlockInfo.html" title="Class used to store unparsed bundle blocks and associated metadata about them.">BlockInfo</a>* source = block-><a class="code" href="classdtn_1_1BlockInfo.html#f11df0a802e40fd503e49ee6580f585d" title="Accessors.">source</a>(); <a name="l00065"></a>00065 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(source != NULL); <a name="l00066"></a>00066 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(source-><a class="code" href="classdtn_1_1BlockInfo.html#bc48fc2f7f543561e26a8a9e32aceda2" title="Accessors.">owner</a>() == <span class="keyword">this</span>); <a name="l00067"></a>00067 <a name="l00068"></a>00068 <span class="comment">// source block must include at least a block header, if not actual data</span> <a name="l00069"></a>00069 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(source-><a class="code" href="classdtn_1_1BlockInfo.html#40fee1299938523234d3ae8c80661e22" title="Accessors.">contents</a>().len() != 0); <a name="l00070"></a>00070 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(source-><a class="code" href="classdtn_1_1BlockInfo.html#590c483ae6cc403c5062b8b3acc51ae3" title="Accessors.">data_offset</a>() != 0); <a name="l00071"></a>00071 <a name="l00072"></a>00072 u_int8_t flags = source-><a class="code" href="classdtn_1_1BlockInfo.html#51f21d5cf4aef2550b605ab90961e045">flags</a>(); <a name="l00073"></a>00073 <span class="keywordflow">if</span> (last) { <a name="l00074"></a>00074 flags |= <a class="code" href="classdtn_1_1BundleProtocol.html#cd56fabd4393bd86ffc295bafaba540b60a3533536c98ae651d4533edd238037">BundleProtocol::BLOCK_FLAG_LAST_BLOCK</a>; <a name="l00075"></a>00075 } <span class="keywordflow">else</span> { <a name="l00076"></a>00076 flags &= ~<a class="code" href="classdtn_1_1BundleProtocol.html" title="Centralized class used to convert a Bundle to / from the bundle protocol specification...">BundleProtocol</a>::BLOCK_FLAG_LAST_BLOCK; <a name="l00077"></a>00077 } <a name="l00078"></a>00078 <a name="l00079"></a>00079 <a class="code" href="classdtn_1_1BlockProcessor.html#c08f7b82f6049f30710a5dcdebb61ce7" title="Generate the standard preamble for the given block type, flags, EID-list and content...">generate_preamble</a>(xmit_blocks, block, source-><a class="code" href="classdtn_1_1BlockInfo.html#46e4157d30528eae60a1cd240e58b495">type</a>(), flags, source-><a class="code" href="classdtn_1_1BlockInfo.html#cb7676dfe53630699317388ad32e8d99" title="Accessors.">data_length</a>()); <a name="l00080"></a>00080 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(block-><a class="code" href="classdtn_1_1BlockInfo.html#590c483ae6cc403c5062b8b3acc51ae3" title="Accessors.">data_offset</a>() == source-><a class="code" href="classdtn_1_1BlockInfo.html#590c483ae6cc403c5062b8b3acc51ae3" title="Accessors.">data_offset</a>()); <a name="l00081"></a>00081 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(block-><a class="code" href="classdtn_1_1BlockInfo.html#cb7676dfe53630699317388ad32e8d99" title="Accessors.">data_length</a>() == source-><a class="code" href="classdtn_1_1BlockInfo.html#cb7676dfe53630699317388ad32e8d99" title="Accessors.">data_length</a>()); <a name="l00082"></a>00082 <a name="l00083"></a>00083 <a class="code" href="classdtn_1_1BlockInfo.html#369e8412fcff682247168dbc4776ded2" title="To store the formatted block data, we use a scratch buffer with 64 bytes of static...">BlockInfo::DataBuffer</a>* contents = block-><a class="code" href="classdtn_1_1BlockInfo.html#2b1a3f8f9c10d722bc4313781aac8e19" title="Mutating accessors.">writable_contents</a>(); <a name="l00084"></a>00084 contents->reserve(block-><a class="code" href="classdtn_1_1BlockInfo.html#2045184fe07026a47e1226bf7142f89a" title="Accessors.">full_length</a>()); <a name="l00085"></a>00085 memcpy(contents->buf() + block-><a class="code" href="classdtn_1_1BlockInfo.html#590c483ae6cc403c5062b8b3acc51ae3" title="Accessors.">data_offset</a>(), <a name="l00086"></a>00086 source-><a class="code" href="classdtn_1_1BlockInfo.html#40fee1299938523234d3ae8c80661e22" title="Accessors.">contents</a>().buf() + block-><a class="code" href="classdtn_1_1BlockInfo.html#590c483ae6cc403c5062b8b3acc51ae3" title="Accessors.">data_offset</a>(), <a name="l00087"></a>00087 block-><a class="code" href="classdtn_1_1BlockInfo.html#cb7676dfe53630699317388ad32e8d99" title="Accessors.">data_length</a>()); <a name="l00088"></a>00088 contents->set_len(block-><a class="code" href="classdtn_1_1BlockInfo.html#2045184fe07026a47e1226bf7142f89a" title="Accessors.">full_length</a>()); <a name="l00089"></a>00089 <a name="l00090"></a>00090 <span class="keywordflow">return</span> <a class="code" href="BlockProcessor_8h.html#446572d61c813971cb4d5ce4ee1b9c0b">BP_SUCCESS</a>; <a name="l00091"></a>00091 } <a name="l00092"></a>00092 <a name="l00093"></a>00093 } <span class="comment">// namespace dtn</span> </pre></div></div> <hr size="1"><address style="text-align: right;"><small>Generated on Mon Jul 21 14:09:37 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>