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<a class="qindex" href="main.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center>
<hr><h1>Orb.cc</h1><a href="a00114.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">// Package : omniEvents</font>
00002 <font class="comment">// Orb.cc Created : 2003/12/04</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
00024 <font class="preprocessor">#include "<a class="code" href="a00115.html">Orb.h</a>"</font>
00025
00026 <font class="preprocessor">#ifdef HAVE_IOSTREAM</font>
00027 <font class="preprocessor"></font><font class="preprocessor"># include <iostream></font>
00028 <font class="preprocessor">#else</font>
00029 <font class="preprocessor"></font><font class="preprocessor"># include <iostream.h></font>
00030 <font class="preprocessor">#endif</font>
00031 <font class="preprocessor"></font>
00032 <font class="preprocessor">#include <stdlib.h></font>
00033 <font class="preprocessor">#include <assert.h></font>
00034
00035 <font class="preprocessor">#include "<a class="code" href="a00081.html">Callback.h</a>"</font>
00036
00037 <font class="keyword">namespace </font>OmniEvents {
00038
<a name="l00039"></a><a class="code" href="a00059.html#r0">00039</a> <a class="code" href="a00059.html">Orb</a> Orb::_inst;
00040
00041
<a name="l00042"></a><a class="code" href="a00059.html#a0">00042</a> Orb::~Orb()
00043 {
00044 omni_mutex_lock l(<a class="code" href="a00059.html#o1">_deferredRequestsLock</a>);
00045 list<RequestCallback_t>::iterator curr, next=<a class="code" href="a00059.html#o0">_deferredRequests</a>.begin();
00046 <font class="keywordflow">while</font>(next!=<a class="code" href="a00059.html#o0">_deferredRequests</a>.end())
00047 {
00048 curr=next++;
00049 CORBA::release(curr->first);
00050 <a class="code" href="a00059.html#o0">_deferredRequests</a>.erase(curr);
00051 }
00052 }
00053
00054
<a name="l00055"></a><a class="code" href="a00059.html#a1">00055</a> <font class="keywordtype">void</font> Orb::resolveInitialReferences()
00056 {
00057 assert(!CORBA::is_nil(<a class="code" href="a00059.html#m0">_orb</a>));
00058
00059 <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>
00060 <font class="keywordflow">try</font>
00061 {
00062 CORBA::Object_var obj;
00063
00064 action=<font class="stringliteral">"resolve initial reference 'RootPOA'"</font>;
00065 obj=<a class="code" href="a00059.html#m0">_orb</a>->resolve_initial_references(<font class="stringliteral">"RootPOA"</font>);
00066 <a class="code" href="a00059.html#m1">_RootPOA</a>=PortableServer::POA::_narrow(obj);
00067 <font class="keywordflow">if</font>(CORBA::is_nil(<a class="code" href="a00059.html#m1">_RootPOA</a>))
00068 <font class="keywordflow">throw</font> CORBA::OBJECT_NOT_EXIST();
00069
00070 action=<font class="stringliteral">"resolve initial reference 'omniINSPOA'"</font>;
00071 obj=<a class="code" href="a00059.html#m0">_orb</a>->resolve_initial_references(<font class="stringliteral">"omniINSPOA"</font>);
00072 <a class="code" href="a00059.html#m2">_omniINSPOA</a>=PortableServer::POA::_narrow(obj);
00073 <font class="keywordflow">if</font>(CORBA::is_nil(<a class="code" href="a00059.html#m2">_omniINSPOA</a>))
00074 <font class="keywordflow">throw</font> CORBA::OBJECT_NOT_EXIST();
00075
00076 <font class="comment">// The naming service is optional.</font>
00077 <font class="keywordflow">try</font>
00078 {
00079 action=<font class="stringliteral">"resolve initial reference 'NameService'"</font>;
00080 obj=<a class="code" href="a00059.html#m0">_orb</a>->resolve_initial_references(<font class="stringliteral">"NameService"</font>);
00081 <a class="code" href="a00059.html#m3">_NameService</a>=CosNaming::NamingContext::_narrow(obj);
00082 }
00083 <font class="keywordflow">catch</font>(CORBA::Exception& ex)
00084 {
00085 <a class="code" href="a00115.html#a2">DB</a>(1,<font class="stringliteral">"Warning - failed to "</font><<action<<
00086 <a class="code" href="a00115.html#a0">IFELSE_OMNIORB4</a>(<font class="stringliteral">". Exception: "</font><<ex._name(),<font class="stringliteral">"."</font>))
00087 }
00088
00089 <font class="preprocessor">#ifdef HAVE_OMNIORB4</font>
00090 <font class="preprocessor"></font> action=<font class="stringliteral">"resolve initial reference 'POACurrent'"</font>;
00091 obj=<a class="code" href="a00059.html#m0">_orb</a>->resolve_initial_references(<font class="stringliteral">"POACurrent"</font>);
00092 _POACurrent=PortableServer::Current::_narrow(obj);
00093 <font class="keywordflow">if</font>(CORBA::is_nil(_POACurrent))
00094 <font class="keywordflow">throw</font> CORBA::OBJECT_NOT_EXIST();
00095 <font class="preprocessor">#endif</font>
00096 <font class="preprocessor"></font>
00097 <font class="keywordflow">return</font>;
00098 }
00099 <font class="keywordflow">catch</font>(CORBA::ORB::InvalidName& ex) <font class="comment">// resolve_initial_references</font>
00100 {
00101 <a class="code" href="a00115.html#a2">DB</a>(0,<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". InvalidName"</font>)
00102 }
00103 <font class="keywordflow">catch</font>(CORBA::TRANSIENT& ex) <font class="comment">// _narrow()</font>
00104 {
00105 <a class="code" href="a00115.html#a2">DB</a>(0,<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". TRANSIENT"</font>)
00106 }
00107 <font class="keywordflow">catch</font>(CORBA::OBJECT_NOT_EXIST& ex) <font class="comment">// _narrow()</font>
00108 {
00109 <a class="code" href="a00115.html#a2">DB</a>(0,<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">". OBJECT_NOT_EXIST"</font>)
00110 }
00111 <font class="keywordflow">catch</font>(CORBA::SystemException& ex)
00112 {
00113 <a class="code" href="a00115.html#a2">DB</a>(0,<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">"."</font>
00114 <a class="code" href="a00115.html#a1">IF_OMNIORB4</a>(<font class="stringliteral">" "</font><<ex._name()<<<font class="stringliteral">" ("</font><<<a class="code" href="a00115.html#a3">NP_MINORSTRING</a>(ex)<<<font class="stringliteral">")"</font>) )
00115 }
00116 <font class="keywordflow">catch</font>(CORBA::Exception& ex)
00117 {
00118 <a class="code" href="a00115.html#a2">DB</a>(0,<font class="stringliteral">"Failed to "</font><<action<<<font class="stringliteral">"."</font> <a class="code" href="a00115.html#a1">IF_OMNIORB4</a>(<font class="stringliteral">" "</font><<ex._name()) )
00119 }
00120 exit(1);
00121 }
00122
00123
<a name="l00124"></a><a class="code" href="a00059.html#a2">00124</a> <font class="keywordtype">void</font> Orb::run()
00125 {
00126 <font class="keywordflow">while</font>(!<a class="code" href="a00059.html#o2">_shutdownRequested</a>)
00127 {
00128 omni_thread::sleep(5);
00129 omni_mutex_lock l(<a class="code" href="a00059.html#o1">_deferredRequestsLock</a>);
00130 <a class="code" href="a00115.html#a2">DB</a>(20,<font class="stringliteral">"Polling "</font><<<a class="code" href="a00059.html#o0">_deferredRequests</a>.size()<<<font class="stringliteral">" deferred requests."</font>)
00131 list<RequestCallback_t>::iterator curr, next=<a class="code" href="a00059.html#o0">_deferredRequests</a>.begin();
00132 <font class="keywordflow">while</font>(next!=<a class="code" href="a00059.html#o0">_deferredRequests</a>.end())
00133 {
00134 curr=next++;
00135 <font class="keywordflow">if</font>(curr->first->poll_response())
00136 {
00137 CORBA::Environment_ptr env=curr->first->env();<font class="comment">// No need to release env.</font>
00138 <font class="keywordflow">if</font>(!CORBA::is_nil(env) && env->exception())
00139 {
00140 CORBA::Exception* ex =env->exception(); <font class="comment">// No need to free exception.</font>
00141 <a class="code" href="a00115.html#a2">DB</a>(10,<font class="stringliteral">"Deferred call to "</font><<curr->first->operation()
00142 <<<font class="stringliteral">"() got exception"</font> <a class="code" href="a00115.html#a1">IF_OMNIORB4</a>(<<<font class="stringliteral">": "</font><<ex->_name()))
00143 }
00144 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(curr->second && curr->second->isValid())
00145 {
00146 <a class="code" href="a00115.html#a2">DB</a>(15,<font class="stringliteral">"Deferred call to "</font><<curr->first->operation()<<<font class="stringliteral">"() returned."</font>)
00147 curr->second->callback(curr->first);
00148 }
00149 <font class="keywordflow">else</font>
00150 {
00151 <a class="code" href="a00115.html#a2">DB</a>(15,<font class="stringliteral">"Orphan call to "</font><<curr->first->operation()<<<font class="stringliteral">"() returned."</font>)
00152 }
00153 CORBA::release(curr->first);
00154 <a class="code" href="a00059.html#o0">_deferredRequests</a>.erase(curr);
00155 }
00156 }
00157 }
00158 }
00159
00160
<a name="l00161"></a><a class="code" href="a00059.html#a3">00161</a> <font class="keywordtype">void</font> Orb::deferredRequest(CORBA::Request_ptr req, <a class="code" href="a00041.html">Callback</a>* callback)
00162 {
00163 omni_mutex_lock l(<a class="code" href="a00059.html#o1">_deferredRequestsLock</a>);
00164 <font class="keywordflow">if</font>(callback)
00165 <a class="code" href="a00059.html#o0">_deferredRequests</a>.push_front(<a class="code" href="a00059.html#u0">RequestCallback_t</a>(req,callback));
00166 <font class="keywordflow">else</font>
00167 <a class="code" href="a00059.html#o0">_deferredRequests</a>.push_back(<a class="code" href="a00059.html#u0">RequestCallback_t</a>(req,NULL));
00168 }
00169
00170
<a name="l00171"></a><a class="code" href="a00059.html#a4">00171</a> <font class="keywordtype">void</font> Orb::cancelCallback(<font class="keyword">const</font> <a class="code" href="a00041.html">Callback</a>* callback)
00172 {
00173 omni_mutex_lock l(<a class="code" href="a00059.html#o1">_deferredRequestsLock</a>);
00174 list<RequestCallback_t>::iterator i=<a class="code" href="a00059.html#o0">_deferredRequests</a>.begin();
00175 <font class="comment">// All the callback are at the front, so we can stop when i->second==NULL.</font>
00176 <font class="keywordflow">while</font>(i!=<a class="code" href="a00059.html#o0">_deferredRequests</a>.end() && i->second)
00177 {
00178 <font class="keywordflow">if</font>(i->second==callback)
00179 i->second=NULL;
00180 ++i;
00181 }
00182 }
00183
00184
<a name="l00185"></a><a class="code" href="a00059.html#a5">00185</a> <font class="keywordtype">void</font> Orb::reportObjectFailure(
00186 <font class="keyword">const</font> <font class="keywordtype">char</font>* here,
00187 CORBA::Object_ptr obj,
00188 CORBA::Exception* ex
00189 )
00190 {
00191 assert(!CORBA::is_nil(obj));
00192 <font class="preprocessor">#ifdef HAVE_OMNIORB4</font>
00193 <font class="preprocessor"></font> {
00194 <font class="comment">// Hack! The '!' signals object failure.</font>
00195 <font class="comment">// See DaemonImpl::log() in daemon_unix.cc.</font>
00196 omniORB::logger log(<font class="stringliteral">"omniEvents! Object failure: "</font>);
00197 omniIOR* ior =obj->_PR_getobj()->_getIOR();
00198 <font class="comment">// Log Repository ID.</font>
00199 log<<ior->repositoryID();
00200 <font class="comment">// Log Object ID. (Limitation: only display the first TAG_INTERNET_IOP)</font>
00201 <font class="keywordflow">for</font>(CORBA::ULong i=0; i<ior->iopProfiles().length(); i++)
00202 {
00203 <font class="keywordflow">if</font> (ior->iopProfiles()[i].tag == IOP::TAG_INTERNET_IOP)
00204 {
00205 IIOP::ProfileBody pBody;
00206 IIOP::unmarshalProfile(ior->iopProfiles()[i],pBody);
00207 log<<<font class="stringliteral">" \""</font>;
00208 <font class="keywordflow">for</font>(CORBA::ULong j=0; j<pBody.object_key.length(); ++j)
00209 {
00210 <font class="keywordtype">char</font> c=(char)pBody.object_key[j];
00211 log<<( (c>=<font class="charliteral">' '</font>&&c<=<font class="charliteral">'~'</font>)? c: <font class="charliteral">'.'</font> ); <font class="comment">// Log object key as text</font>
00212 }
00213 log<<<font class="stringliteral">"\" at "</font><<(<font class="keyword">const</font> <font class="keywordtype">char</font>*)pBody.address.host<<<font class="stringliteral">":"</font><<pBody.address.port;
00214 <font class="keywordflow">break</font>; <font class="comment">// ONLY DISPLAY FIRST!</font>
00215 }
00216 }
00217 <font class="comment">// Log exception.</font>
00218 <font class="keywordflow">if</font>(!ex)
00219 {
00220 log<<<font class="stringliteral">" threw unknown exception\n"</font>;
00221 }
00222 <font class="keywordflow">else</font>
00223 {
00224 log<<<font class="stringliteral">" threw "</font><<ex->_name();
00225 CORBA::SystemException* sysex =CORBA::SystemException::_downcast(ex);
00226 <font class="keywordflow">if</font>(sysex)
00227 log<<<font class="stringliteral">" ("</font><<<a class="code" href="a00115.html#a3">NP_MINORSTRING</a>(*sysex)<<<font class="stringliteral">")"</font>;
00228 log<<<font class="stringliteral">"\n"</font>;
00229 }
00230 }
00231 <font class="preprocessor">#endif</font>
00232 <font class="preprocessor"></font> {
00233 omniORB::logger log(<font class="stringliteral">"omniEvents! Object failure detail: "</font>);
00234 CORBA::String_var sior( Orb::inst().<a class="code" href="a00059.html#m0">_orb</a>->object_to_string(obj) );
00235 log<<sior<<<font class="stringliteral">" at "</font><<here<<<font class="stringliteral">"\n"</font>;
00236 }
00237 }
00238
00239
00240 <font class="comment">//</font>
00241 <font class="comment">// Callback</font>
00242 <font class="comment">//</font>
00243
<a name="l00244"></a><a class="code" href="a00041.html#r0">00244</a> <font class="keyword">const</font> <font class="keywordtype">long</font> Callback::_goodMagic =0xCa11ab1e;
00245
<a name="l00246"></a><a class="code" href="a00041.html#a3">00246</a> Callback::~Callback()
00247 {
00248 <a class="code" href="a00041.html#o0">_magic</a>=0;
00249 <font class="comment">// This call can be blocked waiting for a mutex. In the meantime, Orb::run()</font>
00250 <font class="comment">// might come along and try to call callback(). If that happens.. BANG!</font>
00251 <font class="comment">// This objects virtual call table has already been destroyed, so</font>
00252 <font class="comment">// any attempt to call a virtual function will cause a core dump.</font>
00253
00254 <font class="comment">// To prevent this, here we set _magic=0 BEFORE calling cancelCallback(),</font>
00255 <font class="comment">// and in Orb::run() we check the value of _magic (by calling isValid())</font>
00256 <font class="comment">// BEFORE we try to call callback().</font>
00257 Orb::inst().cancelCallback(<font class="keyword">this</font>);
00258 }
00259
00260
00261 }; <font class="comment">// end namespace OmniEvents</font>
</pre></div><hr><address align="right"><small>Generated on Fri Nov 19 17:42:20 2004 for OmniEvents by
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