Moved LabelSession to ProcessForker

PLEASE NOTE - The bad day tape label scenarios are broken by this
commit.  I will fix them in a future commit.

castor/log/Logger.hpp

@@ -261,7 +261,7 @@ public:
   template<int numParams> void operator() (
     const int priority,
     const std::string &msg,
-    castor::log::Param(&params)[numParams],
+    const log::Param(&params)[numParams],
     const struct timeval &timeStamp) throw() {
     operator() (priority, msg, numParams, params, timeStamp);
   }
@@ -282,7 +282,7 @@ public:
   template<int numParams> void operator() (
     const int priority,
     const std::string &msg,
-    castor::log::Param(&params)[numParams]) throw() {
+    const log::Param(&params)[numParams]) throw() {
     operator() (priority, msg, numParams, params);
   }
 

castor/messages/CMakeLists.txt

@@ -5,6 +5,7 @@ PROTOBUF_GENERATE_CPP(ProtoSources ProtoHeaders ${ProtoFiles})
 
 add_library(castormessages SHARED
   ${ProtoSources}
+  Constants.cpp
   Frame.cpp
   messages.cpp
   SmartZmqContext.cpp

castor/tape/tapeserver/daemon/ProcessForkerMsgType.cpp → castor/messages/Constants.cpp

@@ -16,28 +16,59 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  *
- *
+ * 
  *
  * @author Castor Dev team, castor-dev@cern.ch
  *****************************************************************************/
 
-#include "castor/tape/tapeserver/daemon/ProcessForkerMsgType.hpp"
+#include "castor/messages/Constants.hpp"
 
 //------------------------------------------------------------------------------
-// toString
+// msgTypeToString
 //------------------------------------------------------------------------------
-const char *castor::tape::tapeserver::daemon::ProcessForkerMsgType::
-  toString(const Enum value) throw() {
-  switch(value) {
-  case MSG_NONE             : return "None";
-  case MSG_EXCEPTION        : return "Exception";
-  case MSG_FORKCLEANER      : return "ForkCleaner";
-  case MSG_FORKDATATRANSFER : return "ForkDataTransfer";
-  case MSG_FORKLABEL        : return "ForkLabel";
-  case MSG_FORKSUCCEEDED    : return "ForkSucceeded";
-  case MSG_PROCESSCRASHED   : return "ProcessCrashed";
-  case MSG_PROCESSEXITED    : return "ProcessExited";
-  case MSG_STOPPROCESSFORKER: return "StopProcessForker";
-  default                   : return "Unknown";
+const char *castor::messages::msgTypeToString(const MsgType msgType) throw() {
+  switch(msgType) {
+  case MSG_TYPE_NONE:
+    return "None";
+  case MSG_TYPE_EXCEPTION:
+    return "Exception";
+  case MSG_TYPE_FORKCLEANER:
+    return "ForkCleaner";
+  case MSG_TYPE_FORKDATATRANSFER:
+    return "ForkDataTransfer";
+  case MSG_TYPE_FORKLABEL:
+    return "ForkLabel";
+  case MSG_TYPE_FORKSUCCEEDED:
+    return "ForkSucceeded";
+  case MSG_TYPE_HEARTBEAT:
+    return "Heartbeat";
+  case MSG_TYPE_MIGRATIONJOBFROMTAPEGATEWAY:
+    return "MigrationJobFromTapeGateway";
+  case MSG_TYPE_MIGRATIONJOBFROMWRITETP:
+    return "MigrationJobFromWriteTp";
+  case MSG_TYPE_NBFILESONTAPE:
+    return "NbFilesOnTape";
+  case MSG_TYPE_PROCESSCRASHED:
+    return "ProcessCrashed";
+  case MSG_TYPE_PROCESSEXITED:
+    return "ProcessExited";
+  case MSG_TYPE_RECALLJOBFROMREADTP:
+    return "RecallJobFromReadTp";
+  case MSG_TYPE_RECALLJOBFROMTAPEGATEWAY:
+    return "RecallJobFromTapeGAteway";
+  case MSG_TYPE_RETURNVALUE:
+    return "ReturnValue";
+  case MSG_TYPE_STOPPROCESSFORKER:
+    return "StopProcessForker";
+  case MSG_TYPE_TAPEMOUNTEDFORMIGRATION:
+    return "TapeMountedForMigration";
+  case MSG_TYPE_TAPEMOUNTEDFORRECALL:
+    return "TapeMountedForRecall";
+  case MSG_TYPE_TAPEUNMOUNTSTARTED:
+    return "TapeUnmounStarted";
+  case MSG_TYPE_TAPEUNMOUNTED:
+    return "TapeUnmounted";
+  default:
+    return "Unknown";
   }
-}
+} // msgTypeToString()

castor/messages/Constants.hpp

@@ -20,24 +20,34 @@
  *
  * @author Castor Dev team, castor-dev@cern.ch
  *****************************************************************************/
+
 #pragma once
 
 namespace castor {
 namespace messages {
 
 enum ProtocolType {
+  PROTOCOL_TYPE_NONE,
   PROTOCOL_TYPE_TAPE
 };
 
 enum MsgType {
+  MSG_TYPE_NONE,
   MSG_TYPE_EXCEPTION,
+  MSG_TYPE_FORKCLEANER,
+  MSG_TYPE_FORKDATATRANSFER,
+  MSG_TYPE_FORKLABEL,
+  MSG_TYPE_FORKSUCCEEDED,
   MSG_TYPE_HEARTBEAT,
   MSG_TYPE_MIGRATIONJOBFROMTAPEGATEWAY,
   MSG_TYPE_MIGRATIONJOBFROMWRITETP,
   MSG_TYPE_NBFILESONTAPE,
+  MSG_TYPE_PROCESSCRASHED,
+  MSG_TYPE_PROCESSEXITED,
   MSG_TYPE_RECALLJOBFROMREADTP,
   MSG_TYPE_RECALLJOBFROMTAPEGATEWAY,
   MSG_TYPE_RETURNVALUE,
+  MSG_TYPE_STOPPROCESSFORKER,
   MSG_TYPE_TAPEMOUNTEDFORMIGRATION,
   MSG_TYPE_TAPEMOUNTEDFORRECALL,
   MSG_TYPE_TAPEUNMOUNTSTARTED,
@@ -45,8 +55,21 @@ enum MsgType {
 };
 
 enum ProtocolVersion {
+  PROTOCOL_VERSION_NONE,
   PROTOCOL_VERSION_1
 };
 
+/**
+ * Returns the string representation of the specified message type.
+ *
+ * This method is thread safe because it only returns pointers to string
+ * literals.
+ *
+ * In the case where the specified message type is unknown this method does not
+ * throw an exception, instead is returns a string literal that explains the
+ * message type is unknown.
+ */
+const char *msgTypeToString(const MsgType msgType) throw();
+
 } // namespace messages
 } // namespace castor

castor/tape/tapeserver/client/FakeClient.hpp

@@ -20,11 +20,6 @@
  *
  * @author Castor Dev team, castor-dev@cern.ch
  *****************************************************************************/
-/* 
- * Author: dcome
- *
- * Created on March 26, 2014, 9:38 AM
- */
 
 #pragma once
 

castor/tape/tapeserver/daemon/CMakeLists.txt

@@ -26,7 +26,6 @@ add_library(castorTapeServerDaemon
   ProcessForker.cpp
   ProcessForkerConnectionHandler.cpp
   ProcessForkerProxy.cpp
-  ProcessForkerMsgType.cpp
   ProcessForkerProxySocket.cpp
   ProcessForkerUtils.cpp
   RecallMemoryManager.cpp

castor/tape/tapeserver/daemon/DriveCatalogue.cpp

@@ -38,11 +38,6 @@ castor::tape::tapeserver::daemon::DriveCatalogue::~DriveCatalogue() throw() {
      itor++) {
     const DriveCatalogueEntry *drive = itor->second;
 
-    if(DriveCatalogueEntry::SESSION_TYPE_LABEL == drive->getSessionType() && 
-      DriveCatalogueSession::SESSION_STATE_WAITFORK == drive->getSessionState()
-      && -1 != drive->getLabelCmdConnection()) {
-      close(drive->getLabelCmdConnection());
-    }
     delete drive;
   }
 }

castor/tape/tapeserver/daemon/DriveCatalogueEntry.cpp

@@ -477,7 +477,8 @@ void castor::tape::tapeserver::daemon::DriveCatalogueEntry::receivedLabelJob(
     m_labelCmdConnection = labelCmdConnection;
     m_state = DRIVE_STATE_SESSIONRUNNING;
     m_sessionType = SESSION_TYPE_LABEL;
-    m_session = new DriveCatalogueLabelSession(castor::tape::tapeserver::daemon::DriveCatalogueSession::SESSION_STATE_WAITFORK, job, labelCmdConnection);
+    m_session = new DriveCatalogueLabelSession(
+      DriveCatalogueSession::SESSION_STATE_WAITFORK, job, labelCmdConnection);
     break;
   default:
     {

castor/tape/tapeserver/daemon/LabelSession.cpp

@@ -43,7 +43,6 @@
 // constructor
 //------------------------------------------------------------------------------
 castor::tape::tapeserver::daemon::LabelSession::LabelSession(
-  const int labelCmdConnection,
   legacymsg::RmcProxy &rmc, 
   legacymsg::NsProxy &ns,
   const legacymsg::TapeLabelRqstMsgBody &clientRequest,
@@ -52,7 +51,6 @@ castor::tape::tapeserver::daemon::LabelSession::LabelSession(
   const utils::DriveConfig &driveConfig,
   const bool force):
   m_timeout(1), // 1 second of timeout for the network in the label session. This is not going to be a parameter of the constructor
-  m_labelCmdConnection(labelCmdConnection),
   m_rmc(rmc),
   m_ns(ns),
   m_request(clientRequest),
@@ -66,7 +64,44 @@ castor::tape::tapeserver::daemon::LabelSession::LabelSession(
 // execute
 //------------------------------------------------------------------------------
 void castor::tape::tapeserver::daemon::LabelSession::execute()  {
-  executeLabel();
+  std::ostringstream task;
+  task << "label tape " << m_request.vid << " for gid=" << m_request.gid <<
+    " uid=" << m_request.uid << " in drive " << m_request.drive;
+  
+  log::Param params[] = {
+      log::Param("uid", m_request.uid),
+      log::Param("gid", m_request.gid),
+      log::Param("vid", m_request.vid),
+      log::Param("drive", m_request.drive),
+      log::Param("dgn", m_request.dgn)};
+  
+  performPreMountChecks();
+  mountTape();
+  std::auto_ptr<castor::tape::tapeserver::drives::DriveInterface> drive =
+    getDriveObject();
+  waitUntilTapeLoaded(drive.get(), 60); // 60 = 60 seconds
+  checkTapeIsWritable(drive.get());
+  labelTheTape(drive.get());
+  m_log(LOG_INFO, "The tape has been successfully labeled", params);
+  drive->unloadTape();
+  m_rmc.unmountTape(m_request.vid, m_driveConfig.librarySlot);
+  m_log(LOG_INFO, "The tape has been successfully unmounted after labeling", params);
+}
+
+//------------------------------------------------------------------------------
+// performPreMountChecks
+//------------------------------------------------------------------------------
+void castor::tape::tapeserver::daemon::LabelSession::performPreMountChecks() {
+  checkClientIsOwnerOrAdmin();
+  checkIfVidStillHasSegments();
+}
+
+//------------------------------------------------------------------------------
+// checkClientIsOwnerOrAdmin
+//------------------------------------------------------------------------------
+void castor::tape::tapeserver::daemon::LabelSession::
+  checkClientIsOwnerOrAdmin() {
+  // TO BE DONE
 }
 
 //------------------------------------------------------------------------------
@@ -88,6 +123,13 @@ void castor::tape::tapeserver::daemon::LabelSession::checkIfVidStillHasSegments(
     throw ex;
   }
   else {} // rc==castor::legacymsg::NsProxy::NSPROXY_TAPE_EMPTY. Tape is empty, we are good to go..
+
+  const log::Param params[] = {
+    log::Param("vid", m_request.vid),
+    log::Param("unitName", m_request.drive),
+    log::Param("librarySlot", m_driveConfig.librarySlot)};
+  m_log(LOG_INFO,
+    "Tape to be labeled has no files registered in the name server", params);
 }
 
 //------------------------------------------------------------------------------
@@ -122,107 +164,66 @@ std::auto_ptr<castor::tape::tapeserver::drives::DriveInterface>
 }
 
 //------------------------------------------------------------------------------
-// waitUntilDriveReady
+// mountTape
 //------------------------------------------------------------------------------
-void castor::tape::tapeserver::daemon::LabelSession::waitUntilDriveReady(castor::tape::tapeserver::drives::DriveInterface *drive) { 
-  std::list<log::Param> params;
-  params.push_back(log::Param("uid", m_request.uid));
-  params.push_back(log::Param("gid", m_request.gid));
-  params.push_back(log::Param("vid", m_request.vid));
-  params.push_back(log::Param("drive", m_request.drive));
-  params.push_back(log::Param("dgn", m_request.dgn));
-
-  // check that drive is not write protected
-  if(drive->isWriteProtected()) {
-    m_log(LOG_ERR, "Failed to label the tape: drive is write protected",
-      params);
-  }  
-  drive->waitUntilReady(600);
+void castor::tape::tapeserver::daemon::LabelSession::mountTape() {
+  try {
+    m_rmc.mountTape(m_request.vid, m_driveConfig.librarySlot,
+    castor::legacymsg::RmcProxy::MOUNT_MODE_READWRITE);
+    const log::Param params[] = {
+      log::Param("vid", m_request.vid),
+      log::Param("unitName", m_request.drive),
+      log::Param("librarySlot", m_driveConfig.librarySlot)};
+    m_log(LOG_INFO, "Tape successfully mounted for labeling", params);
+  } catch(castor::exception::Exception &ne) {
+    castor::exception::Exception ex;
+    ex.getMessage() << "Failed to mount tape for labeling: " <<
+      ne.getMessage().str();
+    throw ex;
+  }
 }
 
 //------------------------------------------------------------------------------
-// labelTheTape
+// waitUntilTapeLoaded
 //------------------------------------------------------------------------------
-void castor::tape::tapeserver::daemon::LabelSession::labelTheTape(castor::tape::tapeserver::drives::DriveInterface *drive) {
-  
-  // We can now start labelling
-  castor::tape::tapeFile::LabelSession ls(*drive, m_request.vid, m_force);
+void castor::tape::tapeserver::daemon::LabelSession::waitUntilTapeLoaded(
+  drives::DriveInterface *const drive, const int timeoutSecond) { 
+  try {
+    drive->waitUntilReady(timeoutSecond);
+    const log::Param params[] = {
+      log::Param("vid", m_request.vid),
+      log::Param("unitName", m_request.drive),
+      log::Param("librarySlot", m_driveConfig.librarySlot)};
+    m_log(LOG_INFO, "Tape to be labelled has been mounted", params);
+  } catch(castor::exception::Exception &ne) {
+    castor::exception::Exception ex;
+    ex.getMessage() << "Failed to wait for tape to be loaded: " <<
+      ne.getMessage().str();
+    throw ex;
+  }
 }
 
 //------------------------------------------------------------------------------
-// executeLabel
+// checkTapeIsWritable
 //------------------------------------------------------------------------------
-void castor::tape::tapeserver::daemon::LabelSession::executeLabel() {
-  std::ostringstream task;
-  task << "label tape " << m_request.vid << " for gid=" << m_request.gid <<
-    " uid=" << m_request.uid << " in drive " << m_request.drive;
-  
-  std::auto_ptr<castor::tape::tapeserver::drives::DriveInterface> drive;
-  
-  log::Param params[] = {
-      log::Param("uid", m_request.uid),
-      log::Param("gid", m_request.gid),
-      log::Param("vid", m_request.vid),
-      log::Param("drive", m_request.drive),
-      log::Param("dgn", m_request.dgn)};
-  
-  bool tapeMounted=false;
-  bool configlineSet=false;
-  bool labellingError=false;
-  bool clientNotified=false;
-  
-  try {
-    checkIfVidStillHasSegments();
-    m_log(LOG_INFO, "The tape to be labeled has no files registered in the nameserver", params);
-    drive = getDriveObject();
-    m_log(LOG_INFO, "The tape drive object has been instantiated", params);
-    configlineSet=true;
-    m_rmc.mountTape(m_request.vid, m_driveConfig.librarySlot,
-      castor::legacymsg::RmcProxy::MOUNT_MODE_READWRITE);
-    m_log(LOG_INFO, "The tape has been successfully mounted for labeling", params);
-    tapeMounted=true;
-    waitUntilDriveReady(drive.get());
-    m_log(LOG_INFO, "The drive is ready for labeling", params);
-    try {
-      labelTheTape(drive.get());
-      m_log(LOG_INFO, "The tape has been successfully labeled", params);
-    } catch(castor::tape::tapeFile::TapeNotEmpty & ex) {
-      // In case of error
-      log::Param params[] = {log::Param("message", ex.getMessage().str())};
-      m_log(LOG_ERR, "The tape could not be labeled", params);
-      try {
-        legacymsg::writeTapeReplyMsg(m_timeout, m_labelCmdConnection, 1,
-          ex.getMessage().str());
-      } catch (...) {}
-      clientNotified=true;
-    }
-    drive->unloadTape();
-    m_rmc.unmountTape(m_request.vid, m_driveConfig.librarySlot);
-    m_log(LOG_INFO, "The tape has been successfully unmounted after labeling", params);
-    tapeMounted=false;
-    if (!labellingError) {
-      try {
-        legacymsg::writeTapeReplyMsg(m_timeout, m_labelCmdConnection, 0, "");
-      } catch (...) {}
-      clientNotified=true;
-    }
-  } catch(castor::exception::Exception &ex) {
-    int exitValue = EXIT_SUCCESS;
-    if(tapeMounted && configlineSet) {
-      try {
-        m_rmc.unmountTape(m_request.vid, m_driveConfig.librarySlot);
-      } catch (...) {
-        // Iff we fail to unload a tape, we call this a failure of the process
-        exitValue = EXIT_FAILURE;
-      }
-    }
-    log::Param params[] = {log::Param("message", ex.getMessage().str())};
-    m_log(LOG_ERR, "Label session caught an exception", params);
-    if (!clientNotified) {
-      try {
-        legacymsg::writeTapeReplyMsg(m_timeout, m_labelCmdConnection, 1, ex.getMessage().str());
-      } catch (...) {}
-    }
-    exit(exitValue);
+void castor::tape::tapeserver::daemon::LabelSession::checkTapeIsWritable(
+  drives::DriveInterface *const drive) {
+  if(drive->isWriteProtected()) {
+    castor::exception::Exception ex;
+    ex.getMessage() << "Tape to be labeled in write protected";
+    throw ex;
   }
+  const log::Param params[] = {
+    log::Param("vid", m_request.vid),
+    log::Param("unitName", m_request.drive),
+    log::Param("librarySlot", m_driveConfig.librarySlot)};
+  m_log(LOG_INFO, "Tape to be labelled is writable", params);
+}
+
+//------------------------------------------------------------------------------
+// labelTheTape
+//------------------------------------------------------------------------------
+void castor::tape::tapeserver::daemon::LabelSession::labelTheTape(
+  drives::DriveInterface *const drive) {
+  tapeFile::LabelSession ls(*drive, m_request.vid, m_force);
 }

castor/tape/tapeserver/daemon/LabelSession.hpp

@@ -50,8 +50,6 @@ namespace daemon {
     /**
      *  Constructor 
      *
-     * @param labelCmdConnection The file descriptor of the connection with the
-     * label command.
      * @param rmc Proxy object representing the rmcd daemon.
      * @param clientRequest The request to label a tape received from the label
      * tape command.
@@ -63,7 +61,6 @@ namespace daemon {
      * tape.
      */
     LabelSession(
-      const int labelCmdConnection,
       legacymsg::RmcProxy &rmc,
       legacymsg::NsProxy &ns,
       const legacymsg::TapeLabelRqstMsgBody &clientRequest, 
@@ -84,19 +81,28 @@ namespace daemon {
      */
     int m_timeout;
 
-    /**
-     * The file descriptor of the connection with the label command.
-     */
-    int m_labelCmdConnection;
-    
     enum TapeNsStatus {
       LABEL_SESSION_STEP_SUCCEEDED,
       LABEL_SESSION_STEP_FAILED
-    };
-    
+    }; 
+
     /**
-     * Checks if the VID has still active or disabled segments registered within the name server
-     * @return 
+     * Performs some meta-data checks that need to be done before deciding to
+     * mount the tape for labeling.
+     */ 
+    void performPreMountChecks();
+
+    /**
+     * A meta-data check that sees if the user of the client is either the
+     * owner of the tape pool containing the tape to be labelled or is an ADMIN
+     * user within the CUPV privileges database.
+     */
+    void checkClientIsOwnerOrAdmin();
+
+    /**
+     * A meta-data check that sees if the tape to be labelled contains files
+     * that are registered in the CASTOR name-server as either active or
+     * disabled segments.
      */
     void checkIfVidStillHasSegments();
     
@@ -107,27 +113,41 @@ namespace daemon {
      * @return The drive object.
      */
     std::auto_ptr<castor::tape::tapeserver::drives::DriveInterface> getDriveObject();
+
+    /**
+     * Mounts the tap eto be labelled.
+     */
+    void mountTape();
     
     /**
-     * Check the tape drive write-ability and waits for it to become ready
-     * (tape needs to be loaded)
-     * @param drive The drive object pointer
-     * @return 
+     * Waits for the tape to be loaded into the tape drive.
+     *
+     * @param drive Object representing the drive hardware.
+     * @param timeoutSecond The number of seconds to wait for the tape to be
+     * loaded into the tape drive. 
      */
-    void waitUntilDriveReady(castor::tape::tapeserver::drives::DriveInterface *drive);
+    void waitUntilTapeLoaded(drives::DriveInterface *const drive,
+      const int timeoutSecond);
+
+    /**
+     * Checks that the now loaded tape is writable.
+     *
+     * @param drive Object representing the drive hardware.
+     */
+    void checkTapeIsWritable(drives::DriveInterface *const drive);
     
     /**
      * The function carrying out the actual labeling
      * @param drive The drive object pointer
      * @return 
      */
-    void labelTheTape(castor::tape::tapeserver::drives::DriveInterface *drive);
+    void labelTheTape(drives::DriveInterface *const drive);
     
     /**
      * The object representing the rmcd daemon.
      */
     legacymsg::RmcProxy &m_rmc;
-    
+
     /**
      * The object representing the rmcd daemon.
      */
@@ -157,13 +177,6 @@ namespace daemon {
      * The flag that, if set to true, allows labeling a non-blank tape
      */
     const bool m_force;
-    
-    /**
-     * This is the function performing the actual labeling work (it calls the castor::tape::drive:LabelSession to do so)
-     * 
-     * @param lc the log context
-     */
-    void executeLabel();
 
  }; // class LabelSession
 

castor/tape/tapeserver/daemon/ProcessForker.cpp

@@ -24,18 +24,19 @@
 #include "castor/exception/Exception.hpp"
 #include "castor/legacymsg/NsProxy_TapeAlwaysEmpty.hpp"
 #include "castor/legacymsg/RmcProxyTcpIp.hpp"
+#include "castor/messages/Constants.hpp"
 #include "castor/messages/ForkCleaner.pb.h"
 #include "castor/messages/ForkDataTransfer.pb.h"
 #include "castor/messages/ForkLabel.pb.h"
 #include "castor/messages/ForkSucceeded.pb.h"
 #include "castor/messages/ProcessCrashed.pb.h"
 #include "castor/messages/ProcessExited.pb.h"
+#include "castor/messages/ReturnValue.pb.h"
 #include "castor/messages/StopProcessForker.pb.h"
 #include "castor/messages/TapeserverProxyZmq.hpp"
 #include "castor/tape/tapeserver/daemon/Constants.hpp"
 #include "castor/tape/tapeserver/daemon/LabelSession.hpp"
 #include "castor/tape/tapeserver/daemon/ProcessForker.hpp"
-#include "castor/tape/tapeserver/daemon/ProcessForkerMsgType.hpp"
 #include "castor/tape/tapeserver/daemon/ProcessForkerUtils.hpp"
 #include "castor/tape/utils/DriveConfig.hpp"
 #include "castor/messages/SmartZmqContext.hpp"
@@ -50,35 +51,6 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 
-//------------------------------------------------------------------------------
-// constructAnException
-//------------------------------------------------------------------------------
-castor::tape::tapeserver::daemon::ProcessForker::MsgHandlerResult 
-castor::tape::tapeserver::daemon::ProcessForker::
-constructAnException(const std::string& message,bool continueMainEventLoop) {
-    castor::messages::Exception reply;
-    reply.set_code(SEINTERNAL);
-    reply.set_message(message);
-    MsgHandlerResult result;
-    result.continueMainEventLoop = continueMainEventLoop;
-    ProcessForkerUtils::serializePayload(result.reply, reply);
-    return result;
-  }
-//------------------------------------------------------------------------------
-// returnAnPidOfForkedSession
-//------------------------------------------------------------------------------  
-castor::tape::tapeserver::daemon::ProcessForker::MsgHandlerResult 
-castor::tape::tapeserver::daemon::ProcessForker::