handler/RemoteConnection.cpp

   1 // ANNA - Anna is Not Nothingness Anymore                                                         //
   2 //                                                                                                //
   3 // (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
   4 //                                                                                                //
   5 // See project site at http://redmine.teslayout.com/projects/anna-suite                           //
   6 // See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
   7
   8
   9 #include <anna/core/tracing/Logger.hpp>
  10 #include <anna/core/functions.hpp>
  11 #include <anna/core/mt/Guard.hpp>
  12 #include <anna/core/tracing/TraceMethod.hpp>
  13
  14 #include <anna/xml/Node.hpp>
  15 #include <anna/xml/Attribute.hpp>
  16
  17 #include <anna/comm/internal/RemoteConnection.hpp>
  18 #include <anna/comm/Communicator.hpp>
  19 #include <anna/comm/Device.hpp>
  20 #include <anna/comm/Server.hpp>
  21 #include <anna/comm/ClientSocket.hpp>
  22 #include <anna/comm/internal/ConnectionRecover.hpp>
  23 #include <anna/comm/Receiver.hpp>
  24
  25 #include <anna/comm/handler/RemoteConnection.hpp>
  26
  27 using namespace std;
  28 using namespace anna;
  29
  30 //-------------------------------------------------------------------------------------------
  31 // BackTrace:
  32 // Host::createServer -> Server::connect -> Communicator::attach (RemoteConnection*) ->
  33 // comm::handler::RemoteConnection::initialize
  34 //-------------------------------------------------------------------------------------------
  35
  36 /*
  37    <Guard Id="0x7fbfffeb68" Name="comm::Communicator::multithreadedAccept (ConnectionRecover)" LineNo="635">
  38      <Method Id="comm::Server::connect" File="comm.Server.cc" Line="149" LineNo="637">
  39         <Guard Id="0x7fbfffeb68" Name="comm::Communicator from comm::Server::connect" LineNo="639" Mode="Reentrant">
  40            <Guard Id="0x690f20" Name="comm::Server::connect" LineNo="641">
  41               <Method Id="comm::handler::RemoteConnection::initialize" File="handler.db/comm.handler.RemoteConnection.cc" Line="54" LineNo="643">
  42                  <Guard Id="0x690ff0" Name="comm::ClientSocket (connect)" LineNo="645"/>
  43                  <Method Id="comm::Communicator::eventCreateConnection" File="comm.Communicator.cc" Line="723" LineNo="655">
  44                     <Method Id="comm::Delivery::recover" File="comm.Delivery.cc" Line="186" LineNo="659">
  45                        <Guard Id="0x690750" Name="comm::Delivery::recover" LineNo="661">
  46                           <Method Id="comm::Delivery::unsafe_recover" File="comm.Delivery.cc" Line="196" LineNo="663">
  47                              <Guard Id="0x690f20" Name="Resource" LineNo="665" Mode="Reentrant"/>
  48                           </Method>
  49                        </Guard>
  50                     </Method>
  51                  </Method>
  52               </Method>
  53               <Guard Id="0x68f378" Name="anna::ThreadManager::createThread" LineNo="681"/>
  54            </Guard>
  55         </Guard>
  56      </Method>
  57 */
  58 void comm::handler::RemoteConnection::initialize()
  59 noexcept(false) {
  60   LOGMETHOD(TraceMethod traceMethod("comm::handler::RemoteConnection", "initialize", ANNA_FILE_LOCATION));
  61
  62   if(a_remoteConnection == NULL) {
  63     string msg(asString());
  64     msg += " | No se ha establecido el comm::RemoteConnection";
  65     throw RuntimeException(msg, ANNA_FILE_LOCATION);
  66   }
  67
  68   if(a_remoteConnection->getClientSocket()  == NULL) {
  69     string msg(asString());
  70     msg += " | No se ha establecido el comm::ClientSocket";
  71     throw RuntimeException(msg, ANNA_FILE_LOCATION);
  72   }
  73
  74   comm::ClientSocket& clientSocket = *a_remoteConnection->getClientSocket();
  75   comm::Server* server = a_remoteConnection->getServer();
  76
  77   try {
  78     if(clientSocket.isConnected() == false)
  79       clientSocket.connect();
  80
  81     server->enable();
  82     a_communicator->eventCreateConnection(server);
  83     // Notificacion al Receiver (EDU Febrero 2012)
  84     Receiver* receiver;
  85
  86     if((receiver = clientSocket.getReceiver()) != NULL)
  87       receiver->eventCreateConnection(server);
  88
  89     setfd(clientSocket.getfd());
  90   } catch(RuntimeException&) {
  91     a_communicator->getConnectionRecover()->annotateFault(server);
  92     throw;
  93   }
  94 }
  95
  96 comm::ClientSocket* comm::handler::RemoteConnection::getClientSocket()
  97 {
  98   return (a_remoteConnection != NULL) ? a_remoteConnection->getClientSocket() : NULL;
  99 }
 100
 101 /*
 102  * Se invoca desde Communicator::detach.
 103  *
 104  * [Tx] -> Communicator
 105  *
 106  *
 107  * Al caer en el parche 1.11.9 NO se mantenía el orden requerido de bloqueo:
 108        <Method Id="comm::handler::MetaClientSocket::apply" File="handler.db/comm.handler.MetaClientSocket.cc" Line="45" LineNo="419" InitTime="03/12/2009 12:10:30">
 109          <Guard Id="0x690ff0" Name="comm::ClientSocket from comm::handler::MetaClientSocket::apply" LineNo="421"/>
 110          <Guard Id="0x7fbfffeb68" Name="comm::Communicator::detach" LineNo="427">
 111             <Method Id="comm::handler::RemoteConnection::finalize" File="handler.db/comm.handler.RemoteConnection.cc" Line="101" LineNo="431">
 112                <Guard Id="0x690f20" Name="comm::Server::reset" LineNo="433">
 113                   <Guard Id="0x690ff0" Name="comm::Socket::close" LineNo="435">
 114                      <Guard Id="0x685bc0" Name="PN7anna4comm16TransportFactoryE" LineNo="437"/>
 115                   </Guard>
 116                </Guard>
 117                <Method Id="comm::Communicator::eventBreakConnection (server)" File="comm.Communicator.cc" Line="790" LineNo="447">
 118                   <Method Id="comm::Delivery::fault" File="comm.Delivery.cc" Line="135" LineNo="451">
 119                      <Guard Id="0x690750" Name="comm::Delivery::fault" LineNo="453">
 120                         <Method Id="comm::Delivery::unsafe_fault" File="comm.Delivery.cc" Line="149" LineNo="455">
 121                            <Guard Id="0x690f20" Name="Resource" LineNo="457"/>
 122                         </Method>
 123                      </Guard>
 124                   </Method>
 125                   <Guard Id="0x7fbfffeb68" Name="comm::Communicator::setStatus" LineNo="469" Mode="Reentrant"/>
 126                </Method>
 127             </Method>
 128          </Guard>
 129       </Method>
 130  *
 131  */
 132 void comm::handler::RemoteConnection::finalize()
 133 {
 134   if(a_remoteConnection == NULL)
 135     return;
 136
 137   LOGMETHOD(TraceMethod traceMethod("comm::handler::RemoteConnection", "finalize", ANNA_FILE_LOCATION));
 138   comm::Server* server = a_remoteConnection->getServer();
 139   Guard guard(server, "comm::Server");
 140   comm::ClientSocket* clientSocket = a_remoteConnection->getClientSocket();
 141
 142   if(clientSocket != NULL) {
 143     Receiver* receiver;
 144
 145     if((receiver = clientSocket->getReceiver()) != NULL)
 146       receiver->eventBreakConnection(*clientSocket);
 147
 148     a_communicator->eventBreakConnection(*clientSocket);
 149   }
 150
 151   // Cierra el socket y lo libera
 152   server->reset();
 153   // Establece la información que gestiona el reintento de uso por parte de los servicios de reparto
 154   server->disable();
 155   server->setTimeStamp(functions::millisecond());
 156
 157   if(a_communicator->hasRequestedStop() == false) {
 158     a_communicator->eventBreakConnection(server);
 159     a_communicator->getConnectionRecover()->annotateFault(server);
 160   }
 161
 162   delete a_remoteConnection;
 163   a_remoteConnection = NULL;
 164 }
 165
 166 /*
 167  * Se invoca en ST
 168  */
 169 void comm::handler::RemoteConnection::clone()
 170 noexcept(false) {
 171   comm::ClientSocket& clientSocket = *a_remoteConnection->getClientSocket();
 172
 173   try {
 174     if(clientSocket.isConnected() == true)
 175       clientSocket.close();
 176
 177     clientSocket.connect();
 178     setfd(clientSocket.getfd());
 179   } catch(RuntimeException&) {
 180     a_communicator->getConnectionRecover()->annotateFault(a_remoteConnection->getServer());
 181     throw;
 182   }
 183 }
 184
 185 string comm::handler::RemoteConnection::asString() const
 186 {
 187   string result("comm::handler::RemoteConnection { ");
 188   result += comm::Handler::asString();
 189   result += " | ";
 190   result += functions::asString(a_remoteConnection);
 191   return result += " }";
 192 }
 193
 194 xml::Node* comm::handler::RemoteConnection::asXML(xml::Node* parent) const
 195 {
 196   xml::Node* result = parent->createChild("comm.handler.RemoteConnection");
 197   comm::Handler::asAttribute(result);
 198
 199   if(a_remoteConnection)
 200     a_remoteConnection->asXML(result);
 201
 202   return result;
 203 }
 204
 205