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<hr><h1>rmeventc.cc</h1><a href="a00132.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">// Package : omniEvents</font>
00002 <font class="comment">// rmeventc.cc Created : 2003/12/21</font>
00003 <font class="comment">// Author : Alex Tingle</font>
00004 <font class="comment">//</font>
00005 <font class="comment">// Copyright (C) 2003 Alex Tingle</font>
00006 <font class="comment">//</font>
00007 <font class="comment">// This file is part of the omniEvents application.</font>
00008 <font class="comment">//</font>
00009 <font class="comment">// omniEvents is free software; you can redistribute it and/or</font>
00010 <font class="comment">// modify it under the terms of the GNU Lesser General Public</font>
00011 <font class="comment">// License as published by the Free Software Foundation; either</font>
00012 <font class="comment">// version 2.1 of the License, or (at your option) any later version.</font>
00013 <font class="comment">//</font>
00014 <font class="comment">// omniEvents is distributed in the hope that it will be useful,</font>
00015 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00016 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00017 <font class="comment">// Lesser General Public License for more details.</font>
00018 <font class="comment">//</font>
00019 <font class="comment">// You should have received a copy of the GNU Lesser General Public</font>
00020 <font class="comment">// License along with this library; if not, write to the Free Software</font>
00021 <font class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00022 <font class="comment">//</font>
00023 <font class="comment">// Description:</font>
00024 <font class="comment">// Destroys the named EventChannel.</font>
00025 <font class="comment">// </font>
00026
00027 <font class="preprocessor">#ifdef HAVE_CONFIG_H</font>
00028 <font class="preprocessor"></font><font class="preprocessor"># include "<a class="code" href="a00082.html">config.h</a>"</font>
00029 <font class="preprocessor">#endif</font>
00030 <font class="preprocessor"></font>
00031 <font class="preprocessor">#ifdef HAVE_GETOPT</font>
00032 <font class="preprocessor"></font><font class="preprocessor"># include <unistd.h></font>
00033 <font class="keyword">extern</font> <font class="keywordtype">char</font>* optarg;
00034 <font class="keyword">extern</font> <font class="keywordtype">int</font> optind;
00035 <font class="preprocessor">#else</font>
00036 <font class="preprocessor"></font><font class="preprocessor"># include "<a class="code" href="a00104.html">getopt.h</a>"</font>
00037 <font class="preprocessor">#endif</font>
00038 <font class="preprocessor"></font>
00039 <font class="preprocessor">#ifdef HAVE_STDLIB_H</font>
00040 <font class="preprocessor"></font><font class="preprocessor"># include <stdlib.h></font> <font class="comment">// exit()</font>
00041 <font class="preprocessor">#endif</font>
00042 <font class="preprocessor"></font>
00043 <font class="preprocessor">#ifdef HAVE_IOSTREAM</font>
00044 <font class="preprocessor"></font><font class="preprocessor"># include <iostream></font>
00045 <font class="preprocessor">#else</font>
00046 <font class="preprocessor"></font><font class="preprocessor"># include <iostream.h></font>
00047 <font class="preprocessor">#endif</font>
00048 <font class="preprocessor"></font>
00049 <font class="preprocessor">#ifdef HAVE_STD_IOSTREAM</font>
00050 <font class="preprocessor"></font><font class="keyword">using</font> <font class="keyword">namespace </font>std;
00051 <font class="preprocessor">#endif</font>
00052 <font class="preprocessor"></font>
00053 <font class="preprocessor">#include "CosEventChannelAdmin.hh"</font>
00054 <font class="preprocessor">#include "<a class="code" href="a00109.html">naming.h</a>"</font>
00055
00056 <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);
00057
00058 <font class="keywordtype">int</font>
<a name="l00059"></a><a class="code" href="a00132.html#a1">00059</a> <a class="code" href="a00131.html#a1">main</a>(<font class="keywordtype">int</font> argc, <font class="keywordtype">char</font> **argv)
00060 {
00061 <font class="keywordtype">int</font> result =1;
00062
00063 <font class="comment">//</font>
00064 <font class="comment">// Start orb.</font>
00065 <font class="preprocessor">#if defined(HAVE_OMNIORB4)</font>
00066 <font class="preprocessor"></font> CORBA::ORB_ptr orb = CORBA::ORB_init(argc,argv,<font class="stringliteral">"omniORB4"</font>);
00067 <font class="preprocessor">#else</font>
00068 <font class="preprocessor"></font> CORBA::ORB_ptr orb = CORBA::ORB_init(argc,argv,<font class="stringliteral">"omniORB3"</font>);
00069 <font class="preprocessor">#endif</font>
00070 <font class="preprocessor"></font>
00071 <font class="comment">// Process Options</font>
00072 <font class="keywordtype">int</font> c;
00073
00074 CosNaming::Name ecName =<a class="code" href="a00108.html#a1">str2name</a>(<font class="stringliteral">"EventChannel"</font>);
00075
00076 <font class="keywordflow">while</font> ((c = <a class="code" href="a00103.html#a5">getopt</a>(argc,argv,<font class="stringliteral">"n:h"</font>)) != EOF)
00077 {
00078 <font class="keywordflow">switch</font> (c)
00079 {
00080 <font class="keywordflow">case</font> <font class="charliteral">'n'</font>: ecName=<a class="code" href="a00108.html#a1">str2name</a>(optarg);
00081 <font class="keywordflow">break</font>;
00082
00083 <font class="keywordflow">case</font> <font class="charliteral">'h'</font>: <a class="code" href="a00131.html#a0">usage</a>(argc,argv);
00084 exit(0);
00085
00086 <font class="keywordflow">default</font> : <a class="code" href="a00131.html#a0">usage</a>(argc,argv);
00087 exit(-1);
00088 }
00089 }
00090
00091 <font class="comment">//</font>
00092 <font class="comment">// Use one big try...catch block.</font>
00093 <font class="comment">// 'action' variable keeps track of what we're doing.</font>
00094 <font class="keyword">const</font> <font class="keywordtype">char</font>* action =<font class="stringliteral">"start"</font>;
00095 <font class="keywordflow">try</font>
00096 {
00097 CORBA::Object_var obj;
00098
00099 <font class="comment">//</font>
00100 <font class="comment">// Obtain object reference to EventChannel</font>
00101 <font class="comment">// (from command-line argument or from the Naming Service).</font>
00102 <font class="keywordflow">if</font>(optind<argc)
00103 {
00104 action=<font class="stringliteral">"convert URI from command line into object reference"</font>;
00105 obj=orb->string_to_object(argv[optind]);
00106 }
00107 <font class="keywordflow">else</font>
00108 {
00109 <font class="comment">//</font>
00110 <font class="comment">// Get Name Service root context.</font>
00111 action=<font class="stringliteral">"resolve initial reference 'NameService'"</font>;
00112 obj=orb->resolve_initial_references(<font class="stringliteral">"NameService"</font>);
00113 CosNaming::NamingContext_var rootContext=
00114 CosNaming::NamingContext::_narrow(obj);
00115 <font class="keywordflow">if</font>(CORBA::is_nil(rootContext))
00116 <font class="keywordflow">throw</font> CORBA::OBJECT_NOT_EXIST();
00117
00118 <font class="comment">//</font>
00119 <font class="comment">// Obtain reference to the Event Channel.</font>
00120 action=<font class="stringliteral">"find Event Channel in naming service"</font>;
00121 obj=rootContext->resolve(ecName);
00122
00123 <font class="comment">//</font>
00124 <font class="comment">// Unbind the Channel's reference in the naming service.</font>
00125 action=<font class="stringliteral">"unbind Event Channel from naming service"</font>;
00126 rootContext->unbind(ecName);
00127 }
00128
00129 action=<font class="stringliteral">"narrow object reference to event channel"</font>;
00130 CosEventChannelAdmin::EventChannel_var channel =
00131 CosEventChannelAdmin::EventChannel::_narrow(obj);
00132 <font class="keywordflow">if</font>(CORBA::is_nil(channel))
00133 <font class="keywordflow">throw</font> CORBA::OBJECT_NOT_EXIST();
00134
00135 <font class="comment">//</font>
00136 <font class="comment">// Destroy the EventChannel.</font>
00137 action=<font class="stringliteral">"destroy Event Channel"</font>;
00138 channel->destroy();
00139
00140 <font class="comment">//</font>
00141 <font class="comment">// If we get here, then everything has worked OK.</font>
00142 result=0;
00143
00144 }
00145 <font class="keywordflow">catch</font>(CORBA::ORB::InvalidName& ex) { <font class="comment">// resolve_initial_references</font>
00146 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". ORB::InvalidName"</font><<endl;
00147 }
00148 <font class="keywordflow">catch</font>(CosNaming::NamingContext::InvalidName& ex) { <font class="comment">// resolve</font>
00149 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". NamingContext::InvalidName"</font><<endl;
00150 }
00151 <font class="keywordflow">catch</font>(CosNaming::NamingContext::NotFound& ex) { <font class="comment">// resolve</font>
00152 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". NamingContext::NotFound"</font><<endl;
00153 }
00154 <font class="keywordflow">catch</font>(CosNaming::NamingContext::CannotProceed& ex) { <font class="comment">// resolve</font>
00155 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". NamingContext::CannotProceed"</font><<endl;
00156 }
00157 <font class="keywordflow">catch</font>(CORBA::TRANSIENT& ex) { <font class="comment">// _narrow()</font>
00158 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". TRANSIENT"</font><<endl;
00159 }
00160 <font class="keywordflow">catch</font>(CORBA::OBJECT_NOT_EXIST& ex) { <font class="comment">// _narrow()</font>
00161 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". OBJECT_NOT_EXIST"</font><<endl;
00162 }
00163 <font class="keywordflow">catch</font>(CORBA::SystemException& ex) {
00164 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">"."</font>;
00165 <font class="preprocessor">#if defined(HAVE_OMNIORB4)</font>
00166 <font class="preprocessor"></font> cerr<<<font class="stringliteral">" "</font><<ex._name();
00167 <font class="keywordflow">if</font>(ex.NP_minorString())
00168 cerr<<<font class="stringliteral">" ("</font><<ex.NP_minorString()<<<font class="stringliteral">")"</font>;
00169 <font class="preprocessor">#endif</font>
00170 <font class="preprocessor"></font> cerr<<endl;
00171 }
00172 <font class="keywordflow">catch</font>(CORBA::Exception& ex) {
00173 cerr<<<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">"."</font>
00174 <font class="preprocessor">#if defined(HAVE_OMNIORB4)</font>
00175 <font class="preprocessor"></font> <font class="stringliteral">" "</font><<ex._name()
00176 <font class="preprocessor">#endif</font>
00177 <font class="preprocessor"></font> <<endl;
00178 }
00179
00180 <font class="keywordflow">return</font> result;
00181 }
00182
00183 <font class="keyword">static</font> <font class="keywordtype">void</font>
<a name="l00184"></a><a class="code" href="a00132.html#a0">00184</a> <a class="code" href="a00131.html#a0">usage</a>(<font class="keywordtype">int</font> argc, <font class="keywordtype">char</font> **argv)
00185 {
00186 cerr<<
00187 <font class="stringliteral">"\nDestroy an EventChannel.\n"</font>
00188 <font class="stringliteral">"syntax: "</font><<(argc?argv[0]:<font class="stringliteral">"rmeventc"</font>)<<<font class="stringliteral">" OPTIONS [CHANNEL_URI]\n"</font>
00189 <font class="stringliteral">"\n"</font>
00190 <font class="stringliteral">"CHANNEL_URI: The event channel may be specified as a URI.\n"</font>
00191 <font class="stringliteral">" This may be an IOR, or a corbaloc::: or corbaname::: URI.\n"</font>
00192 <font class="stringliteral">"\n"</font>
00193 <font class="stringliteral">"OPTIONS: DEFAULT:\n"</font>
00194 <font class="stringliteral">" -n NAME channel name (if URI is not specified) [\"EventChannel\"]\n"</font>
00195 <font class="stringliteral">" -h display this help text\n"</font> << endl;
00196 }
00197
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