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<h1>BluetoothConvergenceLayer.cc</h1><a href="BluetoothConvergenceLayer_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 <<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">#ifdef OASYS_BLUETOOTH_ENABLED</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <oasys/bluez/Bluetooth.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <oasys/bluez/BluetoothSDP.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <oasys/util/Random.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <oasys/util/OptParser.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="BundleDaemon_8h.html">bundling/BundleDaemon.h</a>"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="ContactManager_8h.html">contacts/ContactManager.h</a>"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="BluetoothConvergenceLayer_8h.html">BluetoothConvergenceLayer.h</a>"</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">namespace </span>dtn {
<a name="l00032"></a>00032
<a name="l00033"></a>00033 BluetoothConvergenceLayer::BluetoothLinkParams
<a name="l00034"></a>00034 BluetoothConvergenceLayer::default_link_params_(<span class="keyword">true</span>);
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00037"></a>00037 BluetoothConvergenceLayer::BluetoothLinkParams::BluetoothLinkParams(
<a name="l00038"></a>00038 <span class="keywordtype">bool</span> init_defaults )
<a name="l00039"></a>00039 : StreamLinkParams(init_defaults),
<a name="l00040"></a>00040 local_addr_(*(BDADDR_ANY)),
<a name="l00041"></a>00041 remote_addr_(*(BDADDR_ANY)),
<a name="l00042"></a>00042 channel_(BTCL_DEFAULT_CHANNEL)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00047"></a>00047 BluetoothConvergenceLayer::BluetoothConvergenceLayer()
<a name="l00048"></a>00048 : StreamConvergenceLayer(<span class="stringliteral">"BluetoothConvergenceLayer"</span>,
<a name="l00049"></a>00049 <span class="stringliteral">"bt"</span>,BTCL_VERSION)
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00054"></a>00054 ConnectionConvergenceLayer::LinkParams*
<a name="l00055"></a>00055 BluetoothConvergenceLayer::new_link_params()
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 <span class="keywordflow">return</span> <span class="keyword">new</span> BluetoothLinkParams(default_link_params_);
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00061"></a>00061 <span class="keywordtype">bool</span>
<a name="l00062"></a>00062 BluetoothConvergenceLayer::parse_link_params(LinkParams* lparams,
<a name="l00063"></a>00063 <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>** argv,
<a name="l00064"></a>00064 <span class="keyword">const</span> <span class="keywordtype">char</span>** invalidp)
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066
<a name="l00067"></a>00067 BluetoothLinkParams* params = <span class="keyword">dynamic_cast<</span>BluetoothLinkParams*<span class="keyword">></span>(lparams);
<a name="l00068"></a>00068 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(params != NULL);
<a name="l00069"></a>00069
<a name="l00070"></a>00070 oasys::OptParser p;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 p.addopt(<span class="keyword">new</span> oasys::BdAddrOpt(<span class="stringliteral">"local_addr"</span>,&params->local_addr_));
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordtype">int</span> <a class="code" href="dtnping_8c.html#d43c3812e6d13e0518d9f8b8f463ffcf">count</a> = p.parse_and_shift(argc, argv, invalidp);
<a name="l00075"></a>00075 <span class="keywordflow">if</span> (count == -1) {
<a name="l00076"></a>00076 <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// bogus value</span>
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00079"></a>00079 argc -= count;
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="comment">// validate the local address</span>
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (bacmp(&params->local_addr_,BDADDR_ANY) == 0) {
<a name="l00083"></a>00083 <span class="comment">// try again by reading address</span>
<a name="l00084"></a>00084 oasys::Bluetooth::hci_get_bdaddr(&params->local_addr_);
<a name="l00085"></a>00085 <span class="keywordflow">if</span> (bacmp(&params->local_addr_,BDADDR_ANY) == 0) {
<a name="l00086"></a>00086 log_err(<span class="stringliteral">"cannot find local Bluetooth adapter address"</span>);
<a name="l00087"></a>00087 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="comment">// continue up to parse the parent class</span>
<a name="l00092"></a>00092 <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1StreamConvergenceLayer.html#7ff0e15422faa7ab806b1945bf598e56" title="Virtual from ConnectionConvergenceLayer.">StreamConvergenceLayer::parse_link_params</a>(lparams, argc, argv,
<a name="l00093"></a>00093 invalidp);
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00097"></a>00097 <span class="keywordtype">void</span>
<a name="l00098"></a>00098 BluetoothConvergenceLayer::dump_link(<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="l00099"></a>00099 oasys::StringBuffer* <a class="code" href="num2sdnv_8c.html#a81cdcc7ff6987bc85c073253e32715f">buf</a>)
<a name="l00100"></a>00100 {
<a name="l00101"></a>00101 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link != NULL);
<a name="l00102"></a>00102 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(!link->isdeleted());
<a name="l00103"></a>00103 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(link->cl_info() != NULL);
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <a class="code" href="classdtn_1_1StreamConvergenceLayer.html#a6c4edd67ccbef20b2da705474048fed" title="Virtual from ConvergenceLayer.">StreamConvergenceLayer::dump_link</a>(link,buf);
<a name="l00106"></a>00106 BluetoothLinkParams* params =
<a name="l00107"></a>00107 <span class="keyword">dynamic_cast<</span>BluetoothLinkParams*<span class="keyword">></span>(link->cl_info());
<a name="l00108"></a>00108 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(params != NULL);
<a name="l00109"></a>00109 buf->appendf(<span class="stringliteral">"local_addr: %s\n"</span>, bd2str(params->local_addr_));
<a name="l00110"></a>00110 buf->appendf(<span class="stringliteral">"remote_addr: %s\n"</span>, bd2str(params->remote_addr_));
<a name="l00111"></a>00111 buf->appendf(<span class="stringliteral">"channel: %u\n"</span>,params->channel_);
<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>00116 BluetoothConvergenceLayer::set_link_defaults(<span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>* argv[],
<a name="l00117"></a>00117 <span class="keyword">const</span> <span class="keywordtype">char</span>** invalidp)
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 <span class="keywordflow">return</span> parse_link_params(&default_link_params_, argc, argv, invalidp);
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00123"></a>00123 <span class="keywordtype">bool</span>
<a name="l00124"></a>00124 BluetoothConvergenceLayer::parse_nexthop(<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="l00125"></a>00125 LinkParams* lparams)
<a name="l00126"></a>00126 {
<a name="l00127"></a>00127 BluetoothLinkParams* params = <span class="keyword">dynamic_cast<</span>BluetoothLinkParams*<span class="keyword">></span>(lparams);
<a name="l00128"></a>00128 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(params != NULL);
<a name="l00129"></a>00129
<a name="l00130"></a>00130 std::string tmp;
<a name="l00131"></a>00131 bdaddr_t ba;
<a name="l00132"></a>00132 <span class="keyword">const</span> <span class="keywordtype">char</span>* p = link->nexthop();
<a name="l00133"></a>00133 <span class="keywordtype">int</span> numcolons = 5; <span class="comment">// expecting 12 hex digits, 5 colons total</span>
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keywordflow">while</span> (numcolons > 0) {
<a name="l00136"></a>00136 p = strchr(p+1, <span class="charliteral">':'</span>);
<a name="l00137"></a>00137 <span class="keywordflow">if</span> (p != NULL) {
<a name="l00138"></a>00138 numcolons--;
<a name="l00139"></a>00139 } <span class="keywordflow">else</span> {
<a name="l00140"></a>00140 log_warn(<span class="stringliteral">"bad format for remote Bluetooth address: '%s'"</span>,
<a name="l00141"></a>00141 link->nexthop());
<a name="l00142"></a>00142 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 tmp.assign(link->nexthop(), p - link->nexthop() + 3);
<a name="l00146"></a>00146 oasys::Bluetooth::strtoba(tmp.c_str(),&ba);
<a name="l00147"></a>00147
<a name="l00148"></a>00148 bacpy(&params->remote_addr_,&ba);
<a name="l00149"></a>00149 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00150"></a>00150 }
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00153"></a>00153 CLConnection*
<a name="l00154"></a>00154 BluetoothConvergenceLayer::new_connection(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>& link, LinkParams* p)
<a name="l00155"></a>00155 {
<a name="l00156"></a>00156 (void)link;
<a name="l00157"></a>00157 BluetoothLinkParams *params = <span class="keyword">dynamic_cast<</span>BluetoothLinkParams*<span class="keyword">></span>(p);
<a name="l00158"></a>00158 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(params != NULL);
<a name="l00159"></a>00159 <span class="keywordflow">return</span> <span class="keyword">new</span> Connection(<span class="keyword">this</span>, params);
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00163"></a>00163 <span class="keywordtype">bool</span>
<a name="l00164"></a>00164 BluetoothConvergenceLayer::interface_up(Interface* iface,
<a name="l00165"></a>00165 <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>* argv[])
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 log_debug(<span class="stringliteral">"adding interface %s"</span>, iface->name().c_str());
<a name="l00168"></a>00168 bdaddr_t local_addr;
<a name="l00169"></a>00169 u_int8_t channel = BTCL_DEFAULT_CHANNEL;
<a name="l00170"></a>00170
<a name="l00171"></a>00171 memset(&local_addr,0,<span class="keyword">sizeof</span>(bdaddr_t));
<a name="l00172"></a>00172
<a name="l00173"></a>00173 oasys::OptParser p;
<a name="l00174"></a>00174 p.addopt(<span class="keyword">new</span> oasys::UInt8Opt(<span class="stringliteral">"channel"</span>,&channel));
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keyword">const</span> <span class="keywordtype">char</span>* invalid = NULL;
<a name="l00177"></a>00177 <span class="keywordflow">if</span> (! p.parse(argc, argv, &invalid)) {
<a name="l00178"></a>00178 log_err(<span class="stringliteral">"error parsing interface options: invalid option '%s'"</span>,
<a name="l00179"></a>00179 invalid);
<a name="l00180"></a>00180 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="comment">// read adapter address from default adapter (hci0)</span>
<a name="l00184"></a>00184 oasys::Bluetooth::hci_get_bdaddr(&local_addr);
<a name="l00185"></a>00185 <span class="keywordflow">if</span> (bacmp(&local_addr,BDADDR_ANY) == 0) {
<a name="l00186"></a>00186 log_err(<span class="stringliteral">"invalid local address setting of BDADDR_ANY"</span>);
<a name="l00187"></a>00187 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189
<a name="l00190"></a>00190 <span class="keywordflow">if</span> (channel < 1 || channel > 30) {
<a name="l00191"></a>00191 log_err(<span class="stringliteral">"invalid channel setting of %d"</span>,channel);
<a name="l00192"></a>00192 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="comment">// create a new server socket for the requested interface</span>
<a name="l00196"></a>00196 Listener* listener = <span class="keyword">new</span> Listener(<span class="keyword">this</span>);
<a name="l00197"></a>00197 listener->logpathf(<span class="stringliteral">"%s/iface/%s"</span>, logpath_, iface->name().c_str());
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordtype">int</span> ret = listener->bind(local_addr, channel);
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="comment">// be a little forgiving -- if the address is in use, wait for a</span>
<a name="l00202"></a>00202 <span class="comment">// bit and try again</span>
<a name="l00203"></a>00203 <span class="keywordflow">if</span> (ret != 0 && errno == EADDRINUSE) {
<a name="l00204"></a>00204 listener->logf(oasys::LOG_WARN,
<a name="l00205"></a>00205 <span class="stringliteral">"WARNING: error binding to requested socket: %s"</span>,
<a name="l00206"></a>00206 strerror(errno));
<a name="l00207"></a>00207 listener->logf(oasys::LOG_WARN,
<a name="l00208"></a>00208 <span class="stringliteral">"waiting for 10 seconds then trying again"</span>);
<a name="l00209"></a>00209 sleep(10);
<a name="l00210"></a>00210
<a name="l00211"></a>00211 ret = listener->bind(local_addr, channel);
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="keywordflow">if</span> (ret != 0) {
<a name="l00215"></a>00215 <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// error already logged</span>
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a>00218 <span class="comment">// start listening and then start the thread to loop calling accept()</span>
<a name="l00219"></a>00219 listener->listen();
<a name="l00220"></a>00220 listener->start();
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="comment">// store the new listener object in the cl specific portion of the</span>
<a name="l00223"></a>00223 <span class="comment">// interface</span>
<a name="l00224"></a>00224 iface->set_cl_info(listener);
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00227"></a>00227 }
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00230"></a>00230 <span class="keywordtype">bool</span>
<a name="l00231"></a>00231 BluetoothConvergenceLayer::interface_down(Interface* iface)
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 Listener* listener = <span class="keyword">dynamic_cast<</span>Listener*<span class="keyword">></span>(iface->cl_info());
<a name="l00234"></a>00234 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(listener != NULL);
<a name="l00235"></a>00235 listener->stop();
<a name="l00236"></a>00236 <span class="keyword">delete</span> listener;
<a name="l00237"></a>00237 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239
<a name="l00240"></a>00240 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00241"></a>00241 <span class="keywordtype">void</span>
<a name="l00242"></a>00242 BluetoothConvergenceLayer::dump_interface(Interface* iface,
<a name="l00243"></a>00243 oasys::StringBuffer* buf)
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 Listener* listener = <span class="keyword">dynamic_cast<</span>Listener*<span class="keyword">></span>(iface->cl_info());
<a name="l00246"></a>00246 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(listener != NULL);
<a name="l00247"></a>00247
<a name="l00248"></a>00248 bdaddr_t addr;
<a name="l00249"></a>00249 listener->local_addr(addr);
<a name="l00250"></a>00250 buf->appendf(<span class="stringliteral">"\tlocal_addr: %s channel: %u\n"</span>,
<a name="l00251"></a>00251 bd2str(addr), listener->channel());
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00255"></a>00255 BluetoothConvergenceLayer::Listener::Listener(BluetoothConvergenceLayer* cl)
<a name="l00256"></a>00256 : IOHandlerBase(new oasys::Notifier(<span class="stringliteral">"/dtn/cl/bt/listener"</span>)),
<a name="l00257"></a>00257 RFCOMMServerThread(<span class="stringliteral">"/dtn/cl/bt/listener"</span>,oasys::Thread::INTERRUPTABLE),
<a name="l00258"></a>00258 cl_(cl)
<a name="l00259"></a>00259 {
<a name="l00260"></a>00260 logfd_ = <span class="keyword">false</span>;
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00264"></a>00264 <span class="keywordtype">void</span>
<a name="l00265"></a>00265 BluetoothConvergenceLayer::Listener::accepted(<span class="keywordtype">int</span> <a class="code" href="dtnperf-client_8c.html#6f8059414f0228f0256115e024eeed4b">fd</a>, bdaddr_t addr,
<a name="l00266"></a>00266 u_int8_t channel)
<a name="l00267"></a>00267 {
<a name="l00268"></a>00268 log_debug(<span class="stringliteral">"new connection from %s on channel %u"</span>, bd2str(addr),channel);
<a name="l00269"></a>00269 Connection *conn =
<a name="l00270"></a>00270 <span class="keyword">new</span> Connection(cl_, &BluetoothConvergenceLayer::default_link_params_,
<a name="l00271"></a>00271 fd, addr, channel);
<a name="l00272"></a>00272 conn->start();
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00276"></a>00276 BluetoothConvergenceLayer::Connection::Connection(
<a name="l00277"></a>00277 BluetoothConvergenceLayer* cl, BluetoothLinkParams* params)
<a name="l00278"></a>00278 : StreamConvergenceLayer::Connection(
<a name="l00279"></a>00279 <span class="stringliteral">"BluetoothConvergenceLayer::Connection"</span>,
<a name="l00280"></a>00280 cl->logpath(), cl, params, true <span class="comment">/* call connect() */</span>)
<a name="l00281"></a>00281 {
<a name="l00282"></a>00282 logpathf(<span class="stringliteral">"%s/conn/%s"</span>,cl->logpath(),bd2str(params->remote_addr_));
<a name="l00283"></a>00283
<a name="l00284"></a>00284 <span class="comment">// set the nexthop parameter for the base class</span>
<a name="l00285"></a>00285 set_nexthop(bd2str(params->remote_addr_));
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="comment">// Bluetooth socket based on RFCOMM profile stream semantics</span>
<a name="l00288"></a>00288 sock_ = <span class="keyword">new</span> oasys::RFCOMMClient(logpath_);
<a name="l00289"></a>00289 sock_->set_local_addr(params->local_addr_);
<a name="l00290"></a>00290 sock_->logpathf(<span class="stringliteral">"%s/sock"</span>,logpath_);
<a name="l00291"></a>00291 sock_->set_logfd(<span class="keyword">false</span>);
<a name="l00292"></a>00292 sock_->set_remote_addr(params->remote_addr_);
<a name="l00293"></a>00293 sock_->set_channel(params->channel_);
<a name="l00294"></a>00294 sock_->init_socket(); <span class="comment">// make sure sock_::fd_ exists for set_nonblocking</span>
<a name="l00295"></a>00295 <span class="comment">// sock_->set_nonblocking(true); // defer until after connect()</span>
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00299"></a>00299 BluetoothConvergenceLayer::Connection::Connection(
<a name="l00300"></a>00300 BluetoothConvergenceLayer* cl,
<a name="l00301"></a>00301 BluetoothLinkParams* params,
<a name="l00302"></a>00302 <span class="keywordtype">int</span> fd, bdaddr_t addr, u_int8_t channel)
<a name="l00303"></a>00303 : StreamConvergenceLayer::Connection(
<a name="l00304"></a>00304 <span class="stringliteral">"BluetoothConvergenceLayer::Connection"</span>, cl->logpath(), cl, params,
<a name="l00305"></a>00305 false <span class="comment">/* call accept() */</span>)
<a name="l00306"></a>00306 {
<a name="l00307"></a>00307 logpathf(<span class="stringliteral">"%s/conn/%s-%d"</span>,cl->logpath(),bd2str(addr),channel);
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="comment">// set the nexthop parameter for the base class</span>
<a name="l00310"></a>00310 set_nexthop(bd2str(addr));
<a name="l00311"></a>00311 ::bacpy(&params->remote_addr_,&addr);
<a name="l00312"></a>00312
<a name="l00313"></a>00313 sock_ = <span class="keyword">new</span> oasys::RFCOMMClient(fd, addr, channel, logpath_);
<a name="l00314"></a>00314 sock_->set_logfd(<span class="keyword">false</span>);
<a name="l00315"></a>00315 sock_->set_nonblocking(<span class="keyword">true</span>);
<a name="l00316"></a>00316 }
<a name="l00317"></a>00317
<a name="l00318"></a>00318 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00319"></a>00319 BluetoothConvergenceLayer::Connection::~Connection()
<a name="l00320"></a>00320 {
<a name="l00321"></a>00321 <span class="keyword">delete</span> sock_;
<a name="l00322"></a>00322 }
<a name="l00323"></a>00323
<a name="l00324"></a>00324 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00325"></a>00325 <span class="keywordtype">void</span>
<a name="l00326"></a>00326 BluetoothConvergenceLayer::BluetoothLinkParams::serialize(
<a name="l00327"></a>00327 oasys::SerializeAction *a) {
<a name="l00328"></a>00328 <span class="keywordtype">char</span> *la = batostr(&local_addr_);
<a name="l00329"></a>00329 <span class="keywordtype">char</span> *ra = batostr(&remote_addr_);
<a name="l00330"></a>00330
<a name="l00331"></a>00331 a->process(<span class="stringliteral">"local_addr"</span>, (u_char *) la);
<a name="l00332"></a>00332 a->process(<span class="stringliteral">"remote_addr"</span>, (u_char *) ra);
<a name="l00333"></a>00333 a->process(<span class="stringliteral">"channel"</span>, &channel_);
<a name="l00334"></a>00334
<a name="l00335"></a>00335 <span class="comment">// from StreamLinkParams</span>
<a name="l00336"></a>00336 a->process(<span class="stringliteral">"segment_ack_enabled"</span>, &segment_ack_enabled_);
<a name="l00337"></a>00337 a->process(<span class="stringliteral">"negative_ack_enabled"</span>, &negative_ack_enabled_);
<a name="l00338"></a>00338 a->process(<span class="stringliteral">"keepalive_interval"</span>, &keepalive_interval_);
<a name="l00339"></a>00339 a->process(<span class="stringliteral">"segment_length"</span>, &segment_length_);
<a name="l00340"></a>00340
<a name="l00341"></a>00341 <span class="comment">// from LinkParams</span>
<a name="l00342"></a>00342 a->process(<span class="stringliteral">"reactive_frag_enabled"</span>, &reactive_frag_enabled_);
<a name="l00343"></a>00343 a->process(<span class="stringliteral">"sendbuf_len"</span>, &sendbuf_len_);
<a name="l00344"></a>00344 a->process(<span class="stringliteral">"recvbuf_len"</span>, &recvbuf_len_);
<a name="l00345"></a>00345 a->process(<span class="stringliteral">"data_timeout"</span>, &data_timeout_);
<a name="l00346"></a>00346
<a name="l00347"></a>00347 free(la);
<a name="l00348"></a>00348 free(ra);
<a name="l00349"></a>00349 }
<a name="l00350"></a>00350
<a name="l00351"></a>00351 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00352"></a>00352 <span class="keywordtype">void</span>
<a name="l00353"></a>00353 BluetoothConvergenceLayer::Connection::initialize_pollfds()
<a name="l00354"></a>00354 {
<a name="l00355"></a>00355 sock_pollfd_ = &pollfds_[0];
<a name="l00356"></a>00356 num_pollfds_ = 1;
<a name="l00357"></a>00357
<a name="l00358"></a>00358 sock_pollfd_->fd = sock_->fd();
<a name="l00359"></a>00359 sock_pollfd_->events = POLLIN;
<a name="l00360"></a>00360
<a name="l00361"></a>00361 <span class="keywordflow">if</span> (sock_pollfd_->fd == -1) {
<a name="l00362"></a>00362 log_err(<span class="stringliteral">"initialize_pollfds was given a bad socket descriptor"</span>);
<a name="l00363"></a>00363 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00364"></a>00364 }
<a name="l00365"></a>00365
<a name="l00366"></a>00366 BluetoothLinkParams* params = <span class="keyword">dynamic_cast<</span>BluetoothLinkParams*<span class="keyword">></span>(params_);
<a name="l00367"></a>00367 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(params != NULL);
<a name="l00368"></a>00368
<a name="l00369"></a>00369 poll_timeout_ = params->data_timeout_;
<a name="l00370"></a>00370
<a name="l00371"></a>00371 <span class="keywordflow">if</span> (params->keepalive_interval_ != 0 &&
<a name="l00372"></a>00372 (params->keepalive_interval_ * 1000) < params->data_timeout_)
<a name="l00373"></a>00373 {
<a name="l00374"></a>00374 poll_timeout_ = params->keepalive_interval_ * 1000;
<a name="l00375"></a>00375 }
<a name="l00376"></a>00376 }
<a name="l00377"></a>00377
<a name="l00378"></a>00378 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00379"></a>00379 <span class="keywordtype">void</span>
<a name="l00380"></a>00380 BluetoothConvergenceLayer::Connection::connect()
<a name="l00381"></a>00381 {
<a name="l00382"></a>00382 bdaddr_t addr;
<a name="l00383"></a>00383 sock_->remote_addr(addr);
<a name="l00384"></a>00384 <span class="comment">// sock_->set_channel(params_->channel_);</span>
<a name="l00385"></a>00385 log_debug(<span class="stringliteral">"connect: connecting to %s-%d"</span>,bd2str(addr),sock_->channel());
<a name="l00386"></a>00386
<a name="l00387"></a>00387 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(active_connector_);
<a name="l00388"></a>00388 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(contact_ == NULL || contact_->link()->isopening());
<a name="l00389"></a>00389
<a name="l00390"></a>00390 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(sock_->state() != oasys::BluetoothSocket::ESTABLISHED);
<a name="l00391"></a>00391
<a name="l00392"></a>00392 <span class="keywordtype">int</span> ret = sock_->connect();
<a name="l00393"></a>00393
<a name="l00394"></a>00394 <span class="keywordflow">if</span> (ret == 0) {
<a name="l00395"></a>00395 log_debug(<span class="stringliteral">"connect: succeeded immediately"</span>);
<a name="l00396"></a>00396 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(sock_->state() == oasys::BluetoothSocket::ESTABLISHED);
<a name="l00397"></a>00397
<a name="l00398"></a>00398 sock_->set_nonblocking(<span class="keyword">true</span>);
<a name="l00399"></a>00399 initiate_contact();
<a name="l00400"></a>00400
<a name="l00401"></a>00401 } <span class="keywordflow">else</span> {
<a name="l00402"></a>00402 log_info(<span class="stringliteral">"failed to connect to %s: %s"</span>,bd2str(addr),strerror(errno));
<a name="l00403"></a>00403 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00404"></a>00404 }
<a name="l00405"></a>00405 }
<a name="l00406"></a>00406
<a name="l00407"></a>00407 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00408"></a>00408 <span class="keywordtype">void</span>
<a name="l00409"></a>00409 BluetoothConvergenceLayer::Connection::accept()
<a name="l00410"></a>00410 {
<a name="l00411"></a>00411 bdaddr_t addr;
<a name="l00412"></a>00412 memset(&addr,0,<span class="keyword">sizeof</span>(bdaddr_t));
<a name="l00413"></a>00413 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(sock_->state() == oasys::BluetoothSocket::ESTABLISHED);
<a name="l00414"></a>00414 sock_->remote_addr(addr);
<a name="l00415"></a>00415 log_debug(<span class="stringliteral">"accept: got connection from %s"</span>,bd2str(addr));
<a name="l00416"></a>00416 initiate_contact();
<a name="l00417"></a>00417 }
<a name="l00418"></a>00418
<a name="l00419"></a>00419 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00420"></a>00420 <span class="keywordtype">void</span>
<a name="l00421"></a>00421 BluetoothConvergenceLayer::Connection::disconnect()
<a name="l00422"></a>00422 {
<a name="l00423"></a>00423 <span class="keywordflow">if</span> (sock_->state() != oasys::BluetoothSocket::CLOSED) {
<a name="l00424"></a>00424 sock_->close();
<a name="l00425"></a>00425 }
<a name="l00426"></a>00426 }
<a name="l00427"></a>00427
<a name="l00428"></a>00428 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00429"></a>00429 <span class="keywordtype">void</span>
<a name="l00430"></a>00430 BluetoothConvergenceLayer::Connection::handle_poll_activity()
<a name="l00431"></a>00431 {
<a name="l00432"></a>00432 <span class="keywordflow">if</span> ((sock_pollfd_->revents & POLLNVAL) == POLLNVAL) {
<a name="l00433"></a>00433 log_info(<span class="stringliteral">"invalid file descriptor -- returned POLLNVAL"</span>);
<a name="l00434"></a>00434 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00435"></a>00435 <span class="keywordflow">return</span>;
<a name="l00436"></a>00436 }
<a name="l00437"></a>00437
<a name="l00438"></a>00438 <span class="keywordflow">if</span> ((sock_pollfd_->revents & POLLHUP) == POLLHUP) {
<a name="l00439"></a>00439 log_info(<span class="stringliteral">"remote socket closed connection -- returned POLLHUP"</span>);
<a name="l00440"></a>00440 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00441"></a>00441 <span class="keywordflow">return</span>;
<a name="l00442"></a>00442 }
<a name="l00443"></a>00443
<a name="l00444"></a>00444 <span class="keywordflow">if</span> ((sock_pollfd_->revents & POLLERR) == POLLERR) {
<a name="l00445"></a>00445 log_info(<span class="stringliteral">"error condition on remote socket -- returned POLLERR"</span>);
<a name="l00446"></a>00446 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00447"></a>00447 <span class="keywordflow">return</span>;
<a name="l00448"></a>00448 }
<a name="l00449"></a>00449
<a name="l00450"></a>00450 <span class="comment">// first check for write readiness, meaning either we're getting a </span>
<a name="l00451"></a>00451 <span class="comment">// notification that the deferred connect() call completed, or</span>
<a name="l00452"></a>00452 <span class="comment">// that we are no longer write blocked</span>
<a name="l00453"></a>00453 <span class="keywordflow">if</span> ((sock_pollfd_->revents & POLLOUT) == POLLOUT)
<a name="l00454"></a>00454 {
<a name="l00455"></a>00455 log_debug(<span class="stringliteral">"poll returned write ready, clearing POLLOUT bit"</span>);
<a name="l00456"></a>00456 sock_pollfd_->events &= ~POLLOUT;
<a name="l00457"></a>00457
<a name="l00458"></a>00458 <span class="comment">// if (sock_->state() == oasys::BluetoothSocket::CONNECTING) {</span>
<a name="l00459"></a>00459 <span class="comment">// bdaddr_t addr;</span>
<a name="l00460"></a>00460 <span class="comment">// sock_->remote_addr(addr);</span>
<a name="l00461"></a>00461 <span class="comment">// int result = sock_->async_connect_result();</span>
<a name="l00462"></a>00462 <span class="comment">// if (result == 0 && sendbuf_.fullbytes() == 0) {</span>
<a name="l00463"></a>00463 <span class="comment">// log_debug("delayed connect() to %s succeeded",bd2str(addr));</span>
<a name="l00464"></a>00464 <span class="comment">// initiate_contact();</span>
<a name="l00465"></a>00465
<a name="l00466"></a>00466 <span class="comment">// } else {</span>
<a name="l00467"></a>00467 <span class="comment">// log_info("connection attempt to %s failed ... %s",</span>
<a name="l00468"></a>00468 <span class="comment">// bd2str(addr),strerror(errno));</span>
<a name="l00469"></a>00469 <span class="comment">// break_contact(ContactEvent::BROKEN);</span>
<a name="l00470"></a>00470 <span class="comment">// }</span>
<a name="l00471"></a>00471
<a name="l00472"></a>00472 <span class="comment">// return;</span>
<a name="l00473"></a>00473 <span class="comment">// }</span>
<a name="l00474"></a>00474
<a name="l00475"></a>00475 send_data();
<a name="l00476"></a>00476 }
<a name="l00477"></a>00477
<a name="l00478"></a>00478 <span class="comment">//check that the connection was not broken during the data send</span>
<a name="l00479"></a>00479 <span class="keywordflow">if</span> (contact_broken_)
<a name="l00480"></a>00480 {
<a name="l00481"></a>00481 <span class="keywordflow">return</span>;
<a name="l00482"></a>00482 }
<a name="l00483"></a>00483
<a name="l00484"></a>00484 <span class="comment">// check for incoming data</span>
<a name="l00485"></a>00485 <span class="keywordflow">if</span> ((sock_pollfd_->revents & POLLIN) == POLLIN) {
<a name="l00486"></a>00486 recv_data();
<a name="l00487"></a>00487 process_data();
<a name="l00488"></a>00488
<a name="l00489"></a>00489 <span class="comment">// Sanity check to make sure that there's space in the buffer</span>
<a name="l00490"></a>00490 <span class="comment">// for a subsequent read_data() call</span>
<a name="l00491"></a>00491 <span class="keywordflow">if</span> (recvbuf_.tailbytes() == 0) {
<a name="l00492"></a>00492 log_err(<span class="stringliteral">"process_data left no space in recvbuf!!"</span>);
<a name="l00493"></a>00493 }
<a name="l00494"></a>00494
<a name="l00495"></a>00495 <span class="keywordflow">if</span> (contact_up_ && ! contact_broken_) {
<a name="l00496"></a>00496 check_keepalive();
<a name="l00497"></a>00497 }
<a name="l00498"></a>00498
<a name="l00499"></a>00499 }
<a name="l00500"></a>00500
<a name="l00501"></a>00501 }
<a name="l00502"></a>00502
<a name="l00503"></a>00503 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00504"></a>00504 <span class="keywordtype">void</span>
<a name="l00505"></a>00505 BluetoothConvergenceLayer::Connection::send_data()
<a name="l00506"></a>00506 {
<a name="l00507"></a>00507 <span class="comment">// XXX/demmer this assertion is mostly for debugging to catch call</span>
<a name="l00508"></a>00508 <span class="comment">// chains where the contact is broken but we're still using the</span>
<a name="l00509"></a>00509 <span class="comment">// socket</span>
<a name="l00510"></a>00510 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(! contact_broken_);
<a name="l00511"></a>00511
<a name="l00512"></a>00512 log_debug(<span class="stringliteral">"send_data: trying to drain %zu bytes from send buffer..."</span>,
<a name="l00513"></a>00513 sendbuf_.fullbytes());
<a name="l00514"></a>00514 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(sendbuf_.fullbytes() > 0);
<a name="l00515"></a>00515 <span class="keywordtype">int</span> cc = sock_->write(sendbuf_.start(), sendbuf_.fullbytes());
<a name="l00516"></a>00516 <span class="keywordflow">if</span> (cc > 0) {
<a name="l00517"></a>00517 log_debug(<span class="stringliteral">"send_data: wrote %d/%zu bytes from send buffer"</span>,
<a name="l00518"></a>00518 cc, sendbuf_.fullbytes());
<a name="l00519"></a>00519 sendbuf_.consume(cc);
<a name="l00520"></a>00520
<a name="l00521"></a>00521 <span class="keywordflow">if</span> (sendbuf_.fullbytes() != 0) {
<a name="l00522"></a>00522 log_debug(<span class="stringliteral">"send_data: incomplete write, setting POLLOUT bit"</span>);
<a name="l00523"></a>00523 sock_pollfd_->events |= POLLOUT;
<a name="l00524"></a>00524 } <span class="keywordflow">else</span> {
<a name="l00525"></a>00525 <span class="keywordflow">if</span> (sock_pollfd_->events & POLLOUT) {
<a name="l00526"></a>00526 log_debug(<span class="stringliteral">"send_data: drained buffer, clearing POLLOUT bit"</span>);
<a name="l00527"></a>00527 sock_pollfd_->events &= ~POLLOUT;
<a name="l00528"></a>00528 }
<a name="l00529"></a>00529 }
<a name="l00530"></a>00530
<a name="l00531"></a>00531 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (errno == EWOULDBLOCK) {
<a name="l00532"></a>00532 log_debug(<span class="stringliteral">"send_data: write returned EWOULDBLOCK, setting POLLOUT bit"</span>);
<a name="l00533"></a>00533 sock_pollfd_->events |= POLLOUT;
<a name="l00534"></a>00534
<a name="l00535"></a>00535 } <span class="keywordflow">else</span> {
<a name="l00536"></a>00536 log_info(<span class="stringliteral">"send_data: remote connection unexpectedly closed: %s"</span>,
<a name="l00537"></a>00537 strerror(errno));
<a name="l00538"></a>00538 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00539"></a>00539 }
<a name="l00540"></a>00540 }
<a name="l00541"></a>00541
<a name="l00542"></a>00542 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00543"></a>00543 <span class="keywordtype">void</span>
<a name="l00544"></a>00544 BluetoothConvergenceLayer::Connection::recv_data()
<a name="l00545"></a>00545 {
<a name="l00546"></a>00546 <span class="comment">// XXX/demmer this assertion is mostly for debugging to catch call</span>
<a name="l00547"></a>00547 <span class="comment">// chains where the contact is broken but we're still using the</span>
<a name="l00548"></a>00548 <span class="comment">// socket</span>
<a name="l00549"></a>00549 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(! contact_broken_);
<a name="l00550"></a>00550
<a name="l00551"></a>00551 <span class="comment">// this shouldn't ever happen</span>
<a name="l00552"></a>00552 <span class="keywordflow">if</span> (recvbuf_.tailbytes() == 0) {
<a name="l00553"></a>00553 log_err(<span class="stringliteral">"no space in receive buffer to accept data!!!"</span>);
<a name="l00554"></a>00554 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00555"></a>00555 <span class="keywordflow">return</span>;
<a name="l00556"></a>00556 }
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <span class="keywordflow">if</span> (params_->test_read_delay_ != 0) {
<a name="l00559"></a>00559 log_debug(<span class="stringliteral">"recv_data: sleeping for test_read_delay msecs %u"</span>,
<a name="l00560"></a>00560 params_->test_read_delay_);
<a name="l00561"></a>00561 usleep(params_->test_read_delay_ * 1000);
<a name="l00562"></a>00562 }
<a name="l00563"></a>00563
<a name="l00564"></a>00564 log_debug(<span class="stringliteral">"recv_data: draining up to %zu bytes into recv buffer..."</span>,
<a name="l00565"></a>00565 recvbuf_.tailbytes());
<a name="l00566"></a>00566 <span class="keywordtype">int</span> cc = sock_->read(recvbuf_.end(), recvbuf_.tailbytes());
<a name="l00567"></a>00567 <span class="keywordflow">if</span> (cc < 1) {
<a name="l00568"></a>00568 log_info(<span class="stringliteral">"remote connection unexpectedly closed: %s (%d)"</span>,
<a name="l00569"></a>00569 strerror(errno),errno);
<a name="l00570"></a>00570 break_contact(<a class="code" href="classdtn_1_1ContactEvent.html#e20f7357509a2bcca3d8e6c8daf552f7f0c1475c056a0f72e11b5ba8466a27f7" title="Unexpected session interruption.">ContactEvent::BROKEN</a>);
<a name="l00571"></a>00571 <span class="keywordflow">return</span>;
<a name="l00572"></a>00572 }
<a name="l00573"></a>00573
<a name="l00574"></a>00574 log_debug(<span class="stringliteral">"recv_data: read %d bytes, rcvbuf has %zu bytes"</span>,
<a name="l00575"></a>00575 cc, recvbuf_.fullbytes());
<a name="l00576"></a>00576 recvbuf_.fill(cc);
<a name="l00577"></a>00577 }
<a name="l00578"></a>00578
<a name="l00579"></a>00579 } <span class="comment">// dtn</span>
<a name="l00580"></a>00580
<a name="l00581"></a>00581 <span class="preprocessor">#endif // OASYS_BLUETOOTH_ENABLED</span>
</pre></div></div>
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