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<hr><h1>pushcons.cc</h1><a href="a00130.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">// -*- Mode: C++; -*-</font>
00002 <font class="comment">// Package : omniEvents</font>
00003 <font class="comment">// pushcons.cc Created : 1/4/98</font>
00004 <font class="comment">// Author : Paul Nader (pwn)</font>
00005 <font class="comment">//</font>
00006 <font class="comment">// Copyright (C) 1998 Paul Nader, 2003-2004 Alex Tingle</font>
00007 <font class="comment">//</font>
00008 <font class="comment">// This file is part of the omniEvents application.</font>
00009 <font class="comment">//</font>
00010 <font class="comment">// omniEvents is free software; you can redistribute it and/or</font>
00011 <font class="comment">// modify it under the terms of the GNU Lesser General Public</font>
00012 <font class="comment">// License as published by the Free Software Foundation; either</font>
00013 <font class="comment">// version 2.1 of the License, or (at your option) any later version.</font>
00014 <font class="comment">//</font>
00015 <font class="comment">// omniEvents is distributed in the hope that it will be useful,</font>
00016 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment">// Lesser General Public License for more details.</font>
00019 <font class="comment">//</font>
00020 <font class="comment">// You should have received a copy of the GNU Lesser General Public</font>
00021 <font class="comment">// License along with this library; if not, write to the Free Software</font>
00022 <font class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00023 <font class="comment">//</font>
00024 <font class="comment">// Description:</font>
00025 <font class="comment">// Push Model consumer implementation</font>
00026 <font class="comment">// </font>
00027
00028 <font class="comment">/*</font>
00029 <font class="comment"> $Log: pushcons.cc,v $</font>
00030 <font class="comment"> Revision 1.12 2004/10/08 09:06:08 alextingle</font>
00031 <font class="comment"> More robust exception minor code handling.</font>
00032 <font class="comment"></font>
00033 <font class="comment"> Revision 1.11 2004/08/18 17:49:45 alextingle</font>
00034 <font class="comment"> Added check for SIGPIPE before trying to use it.</font>
00035 <font class="comment"></font>
00036 <font class="comment"> Revision 1.10 2004/08/06 16:19:23 alextingle</font>
00037 <font class="comment"> -k & -K options removed.</font>
00038 <font class="comment"> Naming service names may now be as complex as you like.</font>
00039 <font class="comment"></font>
00040 <font class="comment"> Revision 1.9 2004/04/30 17:54:47 alextingle</font>
00041 <font class="comment"> Corrected handling of CORBA::Any.</font>
00042 <font class="comment"></font>
00043 <font class="comment"> Revision 1.8 2004/04/20 16:52:17 alextingle</font>
00044 <font class="comment"> All examples updated for latest version on omniEvents. Server may now be</font>
00045 <font class="comment"> specified as a 'corbaloc' string or IOR, instead of as naming service id/kind.</font>
00046 <font class="comment"></font>
00047 <font class="comment"> Revision 1.7 2004/04/01 22:28:36 alextingle</font>
00048 <font class="comment"> Corrected usage message.</font>
00049 <font class="comment"></font>
00050 <font class="comment"> Revision 1.6 2004/03/23 19:09:26 alextingle</font>
00051 <font class="comment"> Fixed typos.</font>
00052 <font class="comment"></font>
00053 <font class="comment"> Revision 1.5 2004/02/21 19:07:45 alextingle</font>
00054 <font class="comment"> Corrected servants to use POA instead of BOA.</font>
00055 <font class="comment"></font>
00056 <font class="comment"> Revision 1.4 2004/02/04 22:29:55 alextingle</font>
00057 <font class="comment"> Reworked all C++ examples.</font>
00058 <font class="comment"> Removed catch(...) as it tends to make it harder to see what's going on.</font>
00059 <font class="comment"> Now uses POA instead of BOA.</font>
00060 <font class="comment"> Uses omniORB4's Exception name probing.</font>
00061 <font class="comment"> No longer uses 'naming.h/cc' utility code.</font>
00062 <font class="comment"></font>
00063 <font class="comment"> Revision 1.3 2003/11/03 22:19:56 alextingle</font>
00064 <font class="comment"> Removed all platform specific switches. Now uses autoconf, config.h.</font>
00065 <font class="comment"> Removed stub header in order to allow makefile dependency checking to work</font>
00066 <font class="comment"> correctly.</font>
00067 <font class="comment"> Corrected usage of omni_condition/omni_mutex. Mutexes are now always unlocked by</font>
00068 <font class="comment"> the same thread that locked them.</font>
00069 <font class="comment"></font>
00070 <font class="comment"> Revision 1.1.1.1.2.1 2002/09/28 22:20:51 shamus13</font>
00071 <font class="comment"> Added ifdefs to enable omniEvents to compile</font>
00072 <font class="comment"> with both omniORB3 and omniORB4. If __OMNIORB4__</font>
00073 <font class="comment"> is defined during compilation, omniORB4 headers</font>
00074 <font class="comment"> and command line option syntax is used, otherwise</font>
00075 <font class="comment"> fall back to omniORB3 style.</font>
00076 <font class="comment"></font>
00077 <font class="comment"> Revision 1.1.1.1 2002/09/25 19:00:26 shamus13</font>
00078 <font class="comment"> Import of OmniEvents source tree from release 2.1.1</font>
00079 <font class="comment"></font>
00080 <font class="comment"> Revision 0.13 2000/08/30 04:39:48 naderp</font>
00081 <font class="comment"> Port to omniORB 3.0.1.</font>
00082 <font class="comment"></font>
00083 <font class="comment"> Revision 0.12 2000/03/16 05:37:27 naderp</font>
00084 <font class="comment"> Added stdlib.h for getopt.</font>
00085 <font class="comment"></font>
00086 <font class="comment"> Revision 0.11 2000/03/06 13:27:02 naderp</font>
00087 <font class="comment"> Using util getRootNamingContext function.</font>
00088 <font class="comment"> Using stub headers.</font>
00089 <font class="comment"> Fixed error messages.</font>
00090 <font class="comment"></font>
00091 <font class="comment"> Revision 0.10 2000/03/02 03:20:24 naderp</font>
00092 <font class="comment"> Added retry resiliency for handling COMM_FAUILURE exceptions.</font>
00093 <font class="comment"></font>
00094 <font class="comment"> Revision 0.9 1999/11/02 13:39:15 naderp</font>
00095 <font class="comment"> Added <signal.h></font>
00096 <font class="comment"></font>
00097 <font class="comment"> Revision 0.8 1999/11/02 07:57:04 naderp</font>
00098 <font class="comment"> Updated usage.</font>
00099 <font class="comment"></font>
00100 <font class="comment">Revision 0.7 99/11/01 18:10:29 18:10:29 naderp (Paul Nader)</font>
00101 <font class="comment">Added ahndling of COMM_FAILURE exception for connect_push_consumer.</font>
00102 <font class="comment"></font>
00103 <font class="comment">Revision 0.6 99/11/01 16:11:03 16:11:03 naderp (Paul Nader)</font>
00104 <font class="comment">omniEvents 2.0 Release.</font>
00105 <font class="comment"></font>
00106 <font class="comment">Revision 0.5 99/10/27 19:46:01 19:46:01 naderp (Paul Nader)</font>
00107 <font class="comment">Ignoring Unix SIGPIPE signal.</font>
00108 <font class="comment">Catching COMM_FAILURE exception for obtain_push_supplier.</font>
00109 <font class="comment">Continuing if it fails to obtain Proxy Supplier.</font>
00110 <font class="comment">Try/Catch block for disconnect_push_supplier.</font>
00111 <font class="comment"></font>
00112 <font class="comment">Revision 0.4 99/04/23 16:05:46 16:05:46 naderp (Paul Nader)</font>
00113 <font class="comment">gcc port.</font>
00114 <font class="comment"></font>
00115 <font class="comment">Revision 0.3 99/04/23 09:34:03 09:34:03 naderp (Paul Nader)</font>
00116 <font class="comment">Windows Port.</font>
00117 <font class="comment"></font>
00118 <font class="comment">Revision 0.2 99/04/21 18:06:26 18:06:26 naderp (Paul Nader)</font>
00119 <font class="comment">*** empty log message ***</font>
00120 <font class="comment"></font>
00121 <font class="comment">Revision 0.1.1.1 98/11/27 16:59:37 16:59:37 naderp (Paul Nader)</font>
00122 <font class="comment">Added -s option to sleep after disconnecting.</font>
00123 <font class="comment"></font>
00124 <font class="comment">Revision 0.1 98/11/25 14:08:21 14:08:21 naderp (Paul Nader)</font>
00125 <font class="comment">Initial Revision</font>
00126 <font class="comment"></font>
00127 <font class="comment">*/</font>
00128
00129 <font class="preprocessor">#ifdef HAVE_CONFIG_H</font>
00130 <font class="preprocessor"></font><font class="preprocessor"># include "<a class="code" href="a00082.html">config.h</a>"</font>
00131 <font class="preprocessor">#endif</font>
00132 <font class="preprocessor"></font>
00133 <font class="preprocessor">#ifdef HAVE_GETOPT</font>
00134 <font class="preprocessor"></font><font class="preprocessor"># include <unistd.h></font>
00135 <font class="keyword">extern</font> <font class="keywordtype">char</font>* optarg;
00136 <font class="keyword">extern</font> <font class="keywordtype">int</font> optind;
00137 <font class="preprocessor">#else</font>
00138 <font class="preprocessor"></font><font class="preprocessor"># include "<a class="code" href="a00104.html">getopt.h</a>"</font>
00139 <font class="preprocessor">#endif</font>
00140 <font class="preprocessor"></font>
00141 <font class="preprocessor">#ifdef HAVE_IOSTREAM</font>
00142 <font class="preprocessor"></font><font class="preprocessor"># include <iostream></font>
00143 <font class="preprocessor">#else</font>
00144 <font class="preprocessor"></font><font class="preprocessor"># include <iostream.h></font>
00145 <font class="preprocessor">#endif</font>
00146 <font class="preprocessor"></font>
00147 <font class="preprocessor">#ifdef HAVE_STD_IOSTREAM</font>
00148 <font class="preprocessor"></font><font class="keyword">using</font> <font class="keyword">namespace </font>std;
00149 <font class="preprocessor">#endif</font>
00150 <font class="preprocessor"></font>
00151 <font class="preprocessor">#ifdef HAVE_STDLIB_H</font>
00152 <font class="preprocessor"></font><font class="preprocessor"># include <stdlib.h></font>
00153 <font class="preprocessor">#endif</font>
00154 <font class="preprocessor"></font>
00155 <font class="preprocessor">#ifdef HAVE_SIGNAL_H</font>
00156 <font class="preprocessor"></font><font class="preprocessor"># include <signal.h></font>
00157 <font class="preprocessor">#endif</font>
00158 <font class="preprocessor"></font>
00159 <font class="preprocessor">#include "CosEventComm.hh"</font>
00160 <font class="preprocessor">#include "CosEventChannelAdmin.hh"</font>
00161 <font class="preprocessor">#include "<a class="code" href="a00109.html">naming.h</a>"</font>
00162
<a name="l00163"></a><a class="code" href="a00130.html#a0">00163</a> <font class="keyword">static</font> omni_mutex <a class="code" href="a00130.html#a0">mutex</a>;
00164 <font class="keyword">static</font> omni_condition <a class="code" href="a00130.html#a1">connect_cond</a>(&<a class="code" href="a00130.html#a0">mutex</a>);
00165 <font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="a00131.html#a0">usage</a>(<font class="keywordtype">int</font> argc, <font class="keywordtype">char</font> **argv);
00166
00167 <font class="keyword">class </font><a class="code" href="a00042.html">Consumer_i</a> : <font class="keyword">virtual</font> <font class="keyword">public</font> POA_CosEventComm::PushConsumer {
00168 <font class="keyword">public</font>:
<a name="l00169"></a><a class="code" href="a00042.html#a6">00169</a> <a class="code" href="a00042.html#a4">Consumer_i</a>(<font class="keywordtype">long</font> disconnect=0): <a class="code" href="a00042.html#o1">_disconnect</a>(disconnect) {}
00170
00171 <font class="keywordtype">void</font> <a class="code" href="a00042.html#a1">push</a>(<font class="keyword">const</font> CORBA::Any& data);
00172 <font class="keywordtype">void</font> <a class="code" href="a00042.html#a2">disconnect_push_consumer</a> ();
00173
00174 <font class="keyword">private</font>:
<a name="l00175"></a><a class="code" href="a00042.html#o1">00175</a> <font class="keywordtype">long</font> <a class="code" href="a00042.html#o1">_disconnect</a>;
00176 };
00177
00178 <font class="keywordtype">void</font> <a class="code" href="a00042.html#a1">Consumer_i::push</a>(<font class="keyword">const</font> CORBA::Any& data) {
00179 CORBA::ULong l;
00180 <font class="keyword">static</font> <font class="keywordtype">int</font> i = 0;
00181
00182 i++;
00183 <font class="keywordflow">if</font>( data>>=l )
00184 {
00185 cout<<<font class="stringliteral">"Push Consumer: push() called. Data : "</font><< l <<endl;
00186
00187 <font class="comment">// Exercise Disconnect</font>
00188 <font class="keywordflow">if</font> (i == <a class="code" href="a00042.html#o1">_disconnect</a>)
00189 {
00190 i = 0;
00191 <font class="comment">// NOTE : The proxy_supplier object is disposed at the server</font>
00192 <font class="comment">// during the disconnect_push_supplier call. Do NOT</font>
00193 <font class="comment">// use the proxy_supplier reference after disconnecting.</font>
00194
00195 <font class="comment">// Signal main thread to disconnect and re-connect.</font>
00196 <a class="code" href="a00130.html#a1">connect_cond</a>.signal();
00197 }
00198 }
00199 <font class="keywordflow">else</font>
00200 {
00201 cerr<<<font class="stringliteral">"Push Consumer: push() called. UNEXPECTED TYPE"</font><<endl;
00202 }
00203 }
00204
00205 <font class="keywordtype">void</font> <a class="code" href="a00042.html#a2">Consumer_i::disconnect_push_consumer</a> () {
00206 cout << <font class="stringliteral">"Push Consumer: disconnected."</font> << endl;
00207 }
00208
00209 <font class="keywordtype">int</font>
<a name="l00210"></a><a class="code" href="a00130.html#a3">00210</a> <a class="code" href="a00131.html#a1">main</a>(<font class="keywordtype">int</font> argc, <font class="keywordtype">char</font> **argv)
00211 {
00212 <font class="comment">//</font>
00213 <font class="comment">// Start orb.</font>
00214 CORBA::ORB_ptr orb = CORBA::ORB_init(argc,argv);
00215
00216 <font class="comment">// Process Options</font>
00217 <font class="keywordtype">int</font> discnum =0;
00218 <font class="keywordtype">int</font> sleepInterval =0;
00219 <font class="keyword">const</font> <font class="keywordtype">char</font>* channelName =<font class="stringliteral">"EventChannel"</font>;
00220
00221 <font class="keywordtype">int</font> c;
00222 <font class="keywordflow">while</font> ((c = <a class="code" href="a00103.html#a5">getopt</a>(argc,argv,<font class="stringliteral">"hd:s:n:"</font>)) != EOF)
00223 {
00224 <font class="keywordflow">switch</font> (c)
00225 {
00226 <font class="keywordflow">case</font> <font class="charliteral">'d'</font>: discnum = atoi(optarg);
00227 <font class="keywordflow">break</font>;
00228
00229 <font class="keywordflow">case</font> <font class="charliteral">'s'</font>: sleepInterval = atoi(optarg);
00230 <font class="keywordflow">break</font>;
00231
00232 <font class="keywordflow">case</font> <font class="charliteral">'n'</font>: channelName = optarg;
00233 <font class="keywordflow">break</font>;
00234
00235 <font class="keywordflow">case</font> <font class="charliteral">'h'</font>: <a class="code" href="a00131.html#a0">usage</a>(argc,argv);
00236 exit(0);
00237 <font class="keywordflow">default</font> : <a class="code" href="a00131.html#a0">usage</a>(argc,argv);
00238 exit(-1);
00239 }
00240 }
00241
00242 <font class="preprocessor">#if defined(HAVE_SIGNAL_H) && defined(SIGPIPE)</font>
00243 <font class="preprocessor"></font> <font class="comment">// Ignore broken pipes</font>
00244 signal(SIGPIPE, SIG_IGN);
00245 <font class="preprocessor">#endif</font>
00246 <font class="preprocessor"></font>
00247 <a class="code" href="a00042.html">Consumer_i</a>* consumer = <font class="keyword">new</font> <a class="code" href="a00042.html">Consumer_i</a> (discnum);
00248 CosEventChannelAdmin::EventChannel_var channel;
00249
00250 <font class="keyword">const</font> <font class="keywordtype">char</font>* action=<font class="stringliteral">""</font>; <font class="comment">// Use this variable to help report errors.</font>
00251 <font class="keywordflow">try</font> {
00252 CORBA::Object_var obj;
00253
00254 action=<font class="stringliteral">"resolve initial reference 'RootPOA'"</font>;
00255 obj=orb->resolve_initial_references(<font class="stringliteral">"RootPOA"</font>);
00256 PortableServer::POA_var rootPoa =PortableServer::POA::_narrow(obj);
00257 <font class="keywordflow">if</font>(CORBA::is_nil(rootPoa))
00258 <font class="keywordflow">throw</font> CORBA::OBJECT_NOT_EXIST();
00259
00260 action=<font class="stringliteral">"activate the RootPOA's POAManager"</font>;
00261 PortableServer::POAManager_var pman =rootPoa->the_POAManager();
00262 pman->activate();
00263
00264 <font class="comment">//</font>
00265 <font class="comment">// Obtain object reference to EventChannel</font>
00266 <font class="comment">// (from command-line argument or from the Naming Service).</font>
00267 <font class="keywordflow">if</font>(optind<argc)
00268 {
00269 action=<font class="stringliteral">"convert URI from command line into object reference"</font>;
00270 obj=orb->string_to_object(argv[optind]);
00271 }
00272 <font class="keywordflow">else</font>
00273 {
00274 action=<font class="stringliteral">"resolve initial reference 'NameService'"</font>;
00275 obj=orb->resolve_initial_references(<font class="stringliteral">"NameService"</font>);
00276 CosNaming::NamingContext_var rootContext=
00277 CosNaming::NamingContext::_narrow(obj);
00278 <font class="keywordflow">if</font>(CORBA::is_nil(rootContext))
00279 <font class="keywordflow">throw</font> CORBA::OBJECT_NOT_EXIST();
00280
00281 action=<font class="stringliteral">"find EventChannel in NameService"</font>;
00282 cout << action << endl;
00283 obj=rootContext->resolve(<a class="code" href="a00108.html#a1">str2name</a>(channelName));
00284 }
00285
00286 action=<font class="stringliteral">"narrow object reference to event channel"</font>;
00287 channel=CosEventChannelAdmin::EventChannel::_narrow(obj);
00288 <font class="keywordflow">if</font>(CORBA::is_nil(channel))
00289 {
00290 cerr << <font class="stringliteral">"Failed to narrow Event Channel reference."</font> << endl;
00291 exit(1);
00292 }
00293
00294 }
00295 <font class="keywordflow">catch</font>(CORBA::ORB::InvalidName& ex) { <font class="comment">// resolve_initial_references</font>
00296 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". ORB::InvalidName"</font><<endl;
00297 exit(1);
00298 }
00299 <font class="keywordflow">catch</font>(CosNaming::NamingContext::InvalidName& ex) { <font class="comment">// resolve</font>
00300 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". NamingContext::InvalidName"</font><<endl;
00301 exit(1);
00302 }
00303 <font class="keywordflow">catch</font>(CosNaming::NamingContext::NotFound& ex) { <font class="comment">// resolve</font>
00304 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". NamingContext::NotFound"</font><<endl;
00305 exit(1);
00306 }
00307 <font class="keywordflow">catch</font>(CosNaming::NamingContext::CannotProceed& ex) { <font class="comment">// resolve</font>
00308 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". NamingContext::CannotProceed"</font><<endl;
00309 exit(1);
00310 }
00311 <font class="keywordflow">catch</font>(CORBA::TRANSIENT& ex) { <font class="comment">// _narrow()</font>
00312 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". TRANSIENT"</font><<endl;
00313 exit(1);
00314 }
00315 <font class="keywordflow">catch</font>(CORBA::OBJECT_NOT_EXIST& ex) { <font class="comment">// _narrow()</font>
00316 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". OBJECT_NOT_EXIST"</font><<endl;
00317 exit(1);
00318 }
00319 <font class="keywordflow">catch</font>(CORBA::SystemException& ex) {
00320 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">"."</font>;
00321 <font class="preprocessor">#if defined(HAVE_OMNIORB4)</font>
00322 <font class="preprocessor"></font> cerr<<<font class="stringliteral">" "</font><<ex._name();
00323 <font class="keywordflow">if</font>(ex.NP_minorString())
00324 cerr<<<font class="stringliteral">" ("</font><<ex.NP_minorString()<<<font class="stringliteral">")"</font>;
00325 <font class="preprocessor">#endif</font>
00326 <font class="preprocessor"></font> cerr<<endl;
00327 exit(1);
00328 }
00329 <font class="keywordflow">catch</font>(CORBA::Exception& ex) {
00330 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">"."</font>
00331 <font class="preprocessor">#if defined(HAVE_OMNIORB4)</font>
00332 <font class="preprocessor"></font> <font class="stringliteral">" "</font><<ex._name()
00333 <font class="preprocessor">#endif</font>
00334 <font class="preprocessor"></font> <<endl;
00335 exit(1);
00336 }
00337
00338 <font class="comment">//</font>
00339 <font class="comment">// Get Consumer admin interface - retrying on Comms Failure.</font>
00340 CosEventChannelAdmin::ConsumerAdmin_var consumer_admin;
00341 <font class="keywordflow">while</font> (1)
00342 {
00343 <font class="keywordflow">try</font> {
00344 consumer_admin = channel->for_consumers ();
00345 <font class="keywordflow">if</font> (CORBA::is_nil (consumer_admin))
00346 {
00347 cerr << <font class="stringliteral">"Event Channel returned nil Consumer Admin!"</font> << endl;
00348 exit(1);
00349 }
00350 <font class="keywordflow">break</font>;
00351 }
00352 <font class="keywordflow">catch</font> (CORBA::COMM_FAILURE& ex) {
00353 cerr << <font class="stringliteral">"Caught COMM_FAILURE exception "</font>
00354 << <font class="stringliteral">"obtaining Consumer Admin! Retrying..."</font>
00355 << endl;
00356 <font class="keywordflow">continue</font>;
00357 }
00358 }
00359 cout << <font class="stringliteral">"Obtained ConsumerAdmin."</font> << endl;
00360
00361 <font class="keywordflow">while</font> (1) {
00362 <font class="comment">//</font>
00363 <font class="comment">// Get proxy supplier - retrying on Comms Failure.</font>
00364 CosEventChannelAdmin::ProxyPushSupplier_var proxy_supplier;
00365 <font class="keywordflow">while</font> (1)
00366 {
00367 <font class="keywordflow">try</font> {
00368 proxy_supplier = consumer_admin->obtain_push_supplier ();
00369 <font class="keywordflow">if</font> (CORBA::is_nil (proxy_supplier))
00370 {
00371 cerr << <font class="stringliteral">"Consumer Admin returned nil proxy_supplier!"</font>
00372 << endl;
00373 exit (1);
00374 }
00375 <font class="keywordflow">break</font>;
00376 }
00377 <font class="keywordflow">catch</font> (CORBA::COMM_FAILURE& ex) {
00378 cerr << <font class="stringliteral">"Caught COMM_FAILURE Exception "</font>
00379 << <font class="stringliteral">"obtaining Push Supplier! Retrying..."</font>
00380 << endl;
00381 <font class="keywordflow">continue</font>;
00382 }
00383 }
00384 cout << <font class="stringliteral">"Obtained ProxyPushSupplier."</font> << endl;
00385
00386 <font class="comment">//</font>
00387 <font class="comment">// Connect Push Consumer - retrying on Comms Failure.</font>
00388 <font class="keywordflow">while</font> (1)
00389 {
00390 <font class="keywordflow">try</font> {
00391 proxy_supplier->connect_push_consumer(consumer->_this());
00392 <font class="keywordflow">break</font>;
00393 }
00394 <font class="keywordflow">catch</font> (CORBA::BAD_PARAM& ex) {
00395 cerr << <font class="stringliteral">"Caught BAD_PARAM Exception connecting Push Consumer!"</font>
00396 << endl;
00397 exit (1);
00398 }
00399 <font class="keywordflow">catch</font> (CosEventChannelAdmin::AlreadyConnected& ex) {
00400 cerr << <font class="stringliteral">"Proxy Push Supplier already connected!"</font>
00401 << endl;
00402 <font class="keywordflow">break</font>;
00403 }
00404 <font class="keywordflow">catch</font> (CORBA::COMM_FAILURE& ex) {
00405 cerr << <font class="stringliteral">"Caught COMM_FAILURE exception "</font>
00406 << <font class="stringliteral">"connecting Push Consumer! Retrying..."</font>
00407 << endl;
00408 <font class="keywordflow">continue</font>;
00409 }
00410 }
00411 cout << <font class="stringliteral">"Connected Push Consumer."</font> << endl;
00412
00413 <font class="comment">// Wait for indication to disconnect before re-connecting.</font>
00414 {
00415 omni_mutex_lock condition_lock(<a class="code" href="a00130.html#a0">mutex</a>);
00416 <a class="code" href="a00130.html#a1">connect_cond</a>.wait();
00417 }
00418
00419 <font class="comment">// Disconnect - retrying on Comms Failure.</font>
00420 <font class="keywordflow">while</font> (1)
00421 {
00422 <font class="keywordflow">try</font> {
00423 proxy_supplier->disconnect_push_supplier();
00424 <font class="keywordflow">break</font>;
00425 }
00426 <font class="keywordflow">catch</font> (CORBA::COMM_FAILURE& ex) {
00427 cerr << <font class="stringliteral">"Caught COMM_FAILURE Exception "</font>
00428 << <font class="stringliteral">"disconnecting Push Consumer! Retrying..."</font>
00429 << endl;
00430 <font class="keywordflow">continue</font>;
00431 }
00432 }
00433 cout << <font class="stringliteral">"Disconnected Push Consumer."</font> << endl;
00434
00435 <font class="comment">// Yawn</font>
00436 cout << <font class="stringliteral">"Sleeping "</font> << sleepInterval << <font class="stringliteral">" seconds."</font> << endl;
00437 omni_thread::sleep(sleepInterval);
00438 }
00439
00440 <font class="comment">// NEVER GET HERE</font>
00441 <font class="keywordflow">return</font> 0;
00442 }
00443
00444 <font class="keyword">static</font> <font class="keywordtype">void</font>
<a name="l00445"></a><a class="code" href="a00130.html#a2">00445</a> <a class="code" href="a00131.html#a0">usage</a>(<font class="keywordtype">int</font> argc, <font class="keywordtype">char</font> **argv)
00446 {
00447 cerr<<
00448 <font class="stringliteral">"\nCreate a PushConsumer to receive events from a channel.\n"</font>
00449 <font class="stringliteral">"syntax: "</font><<(argc?argv[0]:<font class="stringliteral">"pushcons"</font>)<<<font class="stringliteral">" OPTIONS [CHANNEL_URI]\n"</font>
00450 <font class="stringliteral">"\n"</font>
00451 <font class="stringliteral">"CHANNEL_URI: The event channel may be specified as a URI.\n"</font>
00452 <font class="stringliteral">" This may be an IOR, or a corbaloc::: or corbaname::: URI.\n"</font>
00453 <font class="stringliteral">"\n"</font>
00454 <font class="stringliteral">"OPTIONS: DEFAULT:\n"</font>
00455 <font class="stringliteral">" -d NUM disconnect after receiving NUM events [0 - never disconnect]\n"</font>
00456 <font class="stringliteral">" -s SECS sleep SECS seconds after disconnecting [0]\n"</font>
00457 <font class="stringliteral">" -n NAME channel name (if URI is not specified) [\"EventChannel\"]\n"</font>
00458 <font class="stringliteral">" -h display this help text\n"</font> << endl;
00459 }
</pre></div><hr><address align="right"><small>Generated on Fri Nov 19 17:42:21 2004 for OmniEvents by
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