(file) Return to OOPProviderManagerRouter.cpp CVS log (file) (dir) Up to [Pegasus] / pegasus / src / Pegasus / ProviderManager2 / Attic

Diff for /pegasus/src/Pegasus/ProviderManager2/Attic/OOPProviderManagerRouter.cpp between version 1.21 and 1.25.2.4

version 1.21, 2005/11/18 18:38:35 version 1.25.2.4, 2006/05/19 17:31:41
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 //%2005////////////////////////////////////////////////////////////////////////  //%2006////////////////////////////////////////////////////////////////////////
 // //
 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
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 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
 // EMC Corporation; VERITAS Software Corporation; The Open Group. // EMC Corporation; VERITAS Software Corporation; The Open Group.
   // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
   // EMC Corporation; Symantec Corporation; The Open Group.
 // //
 // Permission is hereby granted, free of charge, to any person obtaining a copy // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to // of this software and associated documentation files (the "Software"), to
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 { {
 public: public:
     OutstandingRequestEntry(     OutstandingRequestEntry(
         String messageId_,          String originalMessageId_,
           CIMRequestMessage* requestMessage_,
         CIMResponseMessage*& responseMessage_,         CIMResponseMessage*& responseMessage_,
         Semaphore* responseReady_)         Semaphore* responseReady_)
         : messageId(messageId_),          : originalMessageId(originalMessageId_),
             requestMessage(requestMessage_),
           responseMessage(responseMessage_),           responseMessage(responseMessage_),
           responseReady(responseReady_)           responseReady(responseReady_)
     {     {
     }     }
  
     String messageId;      /**
           A unique value is substituted as the request messageId attribute to
           allow responses to be definitively correllated with requests.
           The original messageId value is stored here to avoid a race condition
           between the processing of a response chunk and the resetting of the
           original messageId in the request message.
        */
       String originalMessageId;
       CIMRequestMessage* requestMessage;
     CIMResponseMessage*& responseMessage;     CIMResponseMessage*& responseMessage;
     Semaphore* responseReady;     Semaphore* responseReady;
 }; };
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     ProviderAgentContainer(     ProviderAgentContainer(
         const String & moduleName,         const String & moduleName,
         const String & userName,         const String & userName,
         PEGASUS_INDICATION_CALLBACK indicationCallback,          PEGASUS_INDICATION_CALLBACK_T indicationCallback,
           PEGASUS_RESPONSE_CHUNK_CALLBACK_T responseChunkCallback,
         Boolean subscriptionInitComplete);         Boolean subscriptionInitComplete);
  
     ~ProviderAgentContainer();     ~ProviderAgentContainer();
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         with an error result.         with an error result.
  
         Note: The caller must lock the _agentMutex.         Note: The caller must lock the _agentMutex.
   
           @param cleanShutdown Indicates whether the provider agent process
           exited cleanly.  A value of true indicates that responses have been
           sent for all requests that have been processed.  A value of false
           indicates that one or more requests may have been partially processed.
      */      */
     void _uninitialize();      void _uninitialize(Boolean cleanShutdown);
   
       /**
           Performs the processMessage work, but does not retry on a transient
           error.
        */
       CIMResponseMessage* _processMessage(CIMRequestMessage* request);
  
     /**     /**
         Read and process response messages from the Provider Agent until         Read and process response messages from the Provider Agent until
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         Callback function to which all generated indications are sent for         Callback function to which all generated indications are sent for
         processing.         processing.
      */      */
     PEGASUS_INDICATION_CALLBACK _indicationCallback;      PEGASUS_INDICATION_CALLBACK_T _indicationCallback;
   
       /**
           Callback function to which response chunks are sent for processing.
        */
       PEGASUS_RESPONSE_CHUNK_CALLBACK_T _responseChunkCallback;
  
     /**     /**
         Indicates whether the Provider Agent is active.         Indicates whether the Provider Agent is active.
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     static Uint32 _maxProviderProcesses;     static Uint32 _maxProviderProcesses;
  
     /**     /**
           A value indicating that a request message has not been processed.
           A CIMResponseMessage pointer with this value indicates that the
           corresponding CIMRequestMessage has not been processed.  This is
           used to indicate that a provider agent exited without starting to
           process the request, and that the request should be retried.
        */
       static CIMResponseMessage* _REQUEST_NOT_PROCESSED;
   
       /**
         Indicates whether the Indication Service has completed initialization.         Indicates whether the Indication Service has completed initialization.
  
         For more information, please see the description of the         For more information, please see the description of the
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 Mutex ProviderAgentContainer::_numProviderProcessesMutex; Mutex ProviderAgentContainer::_numProviderProcessesMutex;
 Uint32 ProviderAgentContainer::_maxProviderProcesses = PEG_NOT_FOUND; Uint32 ProviderAgentContainer::_maxProviderProcesses = PEG_NOT_FOUND;
  
   // Set this to a value that no valid CIMResponseMessage* will have.
   CIMResponseMessage* ProviderAgentContainer::_REQUEST_NOT_PROCESSED =
       reinterpret_cast<CIMResponseMessage*>(&_REQUEST_NOT_PROCESSED);
   
 ProviderAgentContainer::ProviderAgentContainer( ProviderAgentContainer::ProviderAgentContainer(
     const String & moduleName,     const String & moduleName,
     const String & userName,     const String & userName,
     PEGASUS_INDICATION_CALLBACK indicationCallback,      PEGASUS_INDICATION_CALLBACK_T indicationCallback,
       PEGASUS_RESPONSE_CHUNK_CALLBACK_T responseChunkCallback,
     Boolean subscriptionInitComplete)     Boolean subscriptionInitComplete)
     : _moduleName(moduleName),     : _moduleName(moduleName),
       _userName(userName),       _userName(userName),
       _indicationCallback(indicationCallback),       _indicationCallback(indicationCallback),
         _responseChunkCallback(responseChunkCallback),
       _isInitialized(false),       _isInitialized(false),
       _subscriptionInitComplete(subscriptionInitComplete)       _subscriptionInitComplete(subscriptionInitComplete)
 { {
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     //Out of provider support for OS400 goes here when needed.     //Out of provider support for OS400 goes here when needed.
  
 #else #else
   
   # ifndef PEGASUS_DISABLE_PROV_USERCTXT
       // Get and save the effective user name and the uid/gid for the user
       // context of the agent process
   
       String effectiveUserName = System::getEffectiveUserName();
       PEGASUS_UID_T newUid = (PEGASUS_UID_T) -1;
       PEGASUS_GID_T newGid = (PEGASUS_GID_T) -1;
       if (_userName != effectiveUserName)
       {
           if (!System::lookupUserId(_userName.getCString(), newUid, newGid))
           {
               throw PEGASUS_CIM_EXCEPTION_L(
                   CIM_ERR_FAILED,
                   MessageLoaderParms(
                       "ProviderManager.OOPProviderManagerRouter."
                           "USER_CONTEXT_CHANGE_FAILED",
                       "Unable to change user context to \"$0\".", _userName));
           }
       }
   # endif
   
     pid_t pid = fork();     pid_t pid = fork();
     if (pid < 0)     if (pid < 0)
     {     {
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 #ifndef PEGASUS_DISABLE_PROV_USERCTXT #ifndef PEGASUS_DISABLE_PROV_USERCTXT
             // Set the user context of the Provider Agent process             // Set the user context of the Provider Agent process
             if (_userName != System::getEffectiveUserName())              if (_userName != effectiveUserName)
             {             {
                 if (!System::changeUserContext(_userName.getCString()))                  if (!System::changeUserContext(newUid, newGid))
                 {                 {
                     Tracer::trace(TRC_DISCARDED_DATA, Tracer::LEVEL2,                     Tracer::trace(TRC_DISCARDED_DATA, Tracer::LEVEL2,
                         "System::changeUserContext() failed.  userName = %s.",                         "System::changeUserContext() failed.  userName = %s.",
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             _moduleName));             _moduleName));
     }     }
  
     // Do not wait for a response from the Provider Agent.  (It isn't coming.)      // Wait for a null response from the Provider Agent indicating it has
       // initialized successfully.
   
       CIMMessage* message;
       AnonymousPipe::Status readStatus;
       do
       {
           readStatus = _pipeFromAgent->readMessage(message);
       } while (readStatus == AnonymousPipe::STATUS_INTERRUPT);
   
       if (readStatus != AnonymousPipe::STATUS_SUCCESS)
       {
           PEG_METHOD_EXIT();
           throw Exception(MessageLoaderParms(
               "ProviderManager.OOPProviderManagerRouter."
                   "CIMPROVAGT_COMMUNICATION_FAILED",
               "Failed to communicate with cimprovagt \"$0\".",
               _moduleName));
       }
   
       PEGASUS_ASSERT(message == 0);
  
     PEG_METHOD_EXIT();     PEG_METHOD_EXIT();
 } }
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     if (_maxProviderProcesses == PEG_NOT_FOUND)     if (_maxProviderProcesses == PEG_NOT_FOUND)
     {     {
         String maxProviderProcesses = ConfigManager::getInstance()->getCurrentValue("maxProviderProcesses");          String maxProviderProcesses = ConfigManager::getInstance()->
               getCurrentValue("maxProviderProcesses");
         CString maxProviderProcessesString = maxProviderProcesses.getCString();         CString maxProviderProcessesString = maxProviderProcesses.getCString();
         char* end = 0;         char* end = 0;
         _maxProviderProcesses = strtol(maxProviderProcessesString, &end, 10);         _maxProviderProcesses = strtol(maxProviderProcessesString, &end, 10);
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 } }
  
 // Note: Caller must lock _agentMutex // Note: Caller must lock _agentMutex
 void ProviderAgentContainer::_uninitialize()  void ProviderAgentContainer::_uninitialize(Boolean cleanShutdown)
 { {
     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,
         "ProviderAgentContainer::_uninitialize");         "ProviderAgentContainer::_uninitialize");
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         // connection         // connection
         //         //
         {         {
               //
               //  If not a clean shutdown, log a warning message in case module
               //  included indication providers
               //
               if (!cleanShutdown)
               {
                   Logger::put_l(
                       Logger::STANDARD_LOG, System::CIMSERVER, Logger::WARNING,
                       "ProviderManager.OOPProviderManagerRouter."
                           "OOP_PROVIDER_MODULE_FAILURE_DETECTED",
                       "A failure was detected in provider module $0.  The"
                           " generation of indications by providers in this module"
                           " may be affected.  To ensure these providers are"
                           " serving active subscriptions, disable and then"
                           " re-enable this module using the cimprovider command.",
                       _moduleName);
               }
   
             AutoMutex tableLock(_outstandingRequestTableMutex);             AutoMutex tableLock(_outstandingRequestTableMutex);
  
               CIMResponseMessage* response =
                   cleanShutdown ? _REQUEST_NOT_PROCESSED : 0;
   
             for (OutstandingRequestTable::Iterator i =             for (OutstandingRequestTable::Iterator i =
                      _outstandingRequestTable.start();                      _outstandingRequestTable.start();
                  i != 0; i++)                  i != 0; i++)
             {             {
                 PEG_TRACE_STRING(TRC_PROVIDERMANAGER, Tracer::LEVEL2,                 PEG_TRACE_STRING(TRC_PROVIDERMANAGER, Tracer::LEVEL2,
                     String("Completing messageId \"") + i.value()->messageId +                      String("Completing messageId \"") + i.key() +
                         "\" with a null response.");                         "\" with a null response.");
                 i.value()->responseMessage = 0;                  i.value()->responseMessage = response;
                 i.value()->responseReady->signal();                 i.value()->responseReady->signal();
             }             }
  
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         "ProviderAgentContainer::processMessage");         "ProviderAgentContainer::processMessage");
  
     CIMResponseMessage* response;     CIMResponseMessage* response;
   
       do
       {
           response = _processMessage(request);
   
           if (response == _REQUEST_NOT_PROCESSED)
           {
               // Check for request message types that should not be retried.
               if ((request->getType() ==
                        CIM_STOP_ALL_PROVIDERS_REQUEST_MESSAGE) ||
                   (request->getType() ==
                        CIM_NOTIFY_CONFIG_CHANGE_REQUEST_MESSAGE) ||
                   (request->getType() ==
                        CIM_SUBSCRIPTION_INIT_COMPLETE_REQUEST_MESSAGE) ||
                   (request->getType() ==
                        CIM_DELETE_SUBSCRIPTION_REQUEST_MESSAGE))
               {
                   response = request->buildResponse();
                   break;
               }
               else if (request->getType() == CIM_DISABLE_MODULE_REQUEST_MESSAGE)
               {
                   CIMDisableModuleResponseMessage* dmResponse =
                       dynamic_cast<CIMDisableModuleResponseMessage*>(response);
                   PEGASUS_ASSERT(dmResponse != 0);
   
                   Array<Uint16> operationalStatus;
                   operationalStatus.append(CIM_MSE_OPSTATUS_VALUE_STOPPED);
                   dmResponse->operationalStatus = operationalStatus;
                   break;
               }
           }
       } while (response == _REQUEST_NOT_PROCESSED);
   
       PEG_METHOD_EXIT();
       return response;
   }
   
   CIMResponseMessage* ProviderAgentContainer::_processMessage(
       CIMRequestMessage* request)
   {
       PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,
           "ProviderAgentContainer::_processMessage");
   
       CIMResponseMessage* response;
     String originalMessageId = request->messageId;     String originalMessageId = request->messageId;
  
     // These three variables are used for the provider module optimization.     // These three variables are used for the provider module optimization.
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         //         //
         Semaphore waitSemaphore(0);         Semaphore waitSemaphore(0);
         OutstandingRequestEntry outstandingRequestEntry(         OutstandingRequestEntry outstandingRequestEntry(
             uniqueMessageId, response, &waitSemaphore);              originalMessageId, request, response, &waitSemaphore);
  
         //         //
         // Lock the Provider Agent Container while initializing the         // Lock the Provider Agent Container while initializing the
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                     Tracer::trace(TRC_PROVIDERMANAGER, Tracer::LEVEL2,                     Tracer::trace(TRC_PROVIDERMANAGER, Tracer::LEVEL2,
                         "Failed to write message to pipe.  writeStatus = %d.",                         "Failed to write message to pipe.  writeStatus = %d.",
                         writeStatus);                         writeStatus);
                     throw Exception(MessageLoaderParms(  
                         "ProviderManager.OOPProviderManagerRouter."                      request->messageId = originalMessageId;
                             "CIMPROVAGT_COMMUNICATION_FAILED",  
                         "Failed to communicate with cimprovagt \"$0\".",                      if (doProviderModuleOptimization)
                         _moduleName));                      {
                           request->operationContext.set(*origProviderId.get());
                       }
   
                       // Remove this OutstandingRequestTable entry
                       {
                           AutoMutex tableLock(_outstandingRequestTableMutex);
                           Boolean removed =
                               _outstandingRequestTable.remove(uniqueMessageId);
                           PEGASUS_ASSERT(removed);
                       }
   
                       // A response value of _REQUEST_NOT_PROCESSED indicates
                       // that the request was not processed by the provider
                       // agent, so it can be retried safely.
                       PEG_METHOD_EXIT();
                       return _REQUEST_NOT_PROCESSED;
                 }                 }
  
                 if (updateProviderModuleCache)                 if (updateProviderModuleCache)
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                         _outstandingRequestTable.remove(uniqueMessageId);                         _outstandingRequestTable.remove(uniqueMessageId);
                     PEGASUS_ASSERT(removed);                     PEGASUS_ASSERT(removed);
                 }                 }
                   PEG_METHOD_EXIT();
                 throw;                 throw;
             }             }
         }         }
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                     _outstandingRequestTable.remove(uniqueMessageId);                     _outstandingRequestTable.remove(uniqueMessageId);
                 PEGASUS_ASSERT(removed);                 PEGASUS_ASSERT(removed);
             }             }
               PEG_METHOD_EXIT();
             throw;             throw;
         }         }
  
           // A response value of _REQUEST_NOT_PROCESSED indicates that the
           // provider agent process was terminating when the request was sent.
           // The request was not processed by the provider agent, so it can be
           // retried safely.
           if (response == _REQUEST_NOT_PROCESSED)
           {
               PEG_METHOD_EXIT();
               return response;
           }
   
         // A null response is returned when an agent connection is closed         // A null response is returned when an agent connection is closed
         // while requests remain outstanding.         // while requests remain outstanding.
         if (response == 0)         if (response == 0)
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                 (readStatus == AnonymousPipe::STATUS_CLOSED))                 (readStatus == AnonymousPipe::STATUS_CLOSED))
             {             {
                 AutoMutex lock(_agentMutex);                 AutoMutex lock(_agentMutex);
                 _uninitialize();                  _uninitialize(false);
                   return;
               }
   
               // A null message indicates that the provider agent process has
               // finished its processing and is ready to exit.
               if (message == 0)
               {
                   AutoMutex lock(_agentMutex);
                   _uninitialize(true);
                 return;                 return;
             }             }
  
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                     reinterpret_cast<CIMProcessIndicationRequestMessage*>(                     reinterpret_cast<CIMProcessIndicationRequestMessage*>(
                         message));                         message));
             }             }
               else if (!message->isComplete())
               {
                   CIMResponseMessage* response;
                   response = dynamic_cast<CIMResponseMessage*>(message);
                   PEGASUS_ASSERT(response != 0);
   
                   // Get the OutstandingRequestEntry for this response chunk
                   OutstandingRequestEntry* _outstandingRequestEntry = 0;
                   {
                       AutoMutex tableLock(_outstandingRequestTableMutex);
                       Boolean foundEntry = _outstandingRequestTable.lookup(
                           response->messageId, _outstandingRequestEntry);
                       PEGASUS_ASSERT(foundEntry);
                   }
   
                   // Put the original message ID into the response
                   response->messageId =
                       _outstandingRequestEntry->originalMessageId;
   
                   // Call the response chunk callback to process the chunk
                   _responseChunkCallback(
                       _outstandingRequestEntry->requestMessage, response);
               }
             else             else
             {             {
                 CIMResponseMessage* response;                 CIMResponseMessage* response;
Line 1182 
Line 1395 
 ///////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////
  
 OOPProviderManagerRouter::OOPProviderManagerRouter( OOPProviderManagerRouter::OOPProviderManagerRouter(
     PEGASUS_INDICATION_CALLBACK indicationCallback)      PEGASUS_INDICATION_CALLBACK_T indicationCallback,
       PEGASUS_RESPONSE_CHUNK_CALLBACK_T responseChunkCallback)
 { {
     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,
         "OOPProviderManagerRouter::OOPProviderManagerRouter");         "OOPProviderManagerRouter::OOPProviderManagerRouter");
  
     _indicationCallback = indicationCallback;     _indicationCallback = indicationCallback;
       _responseChunkCallback = responseChunkCallback;
     _subscriptionInitComplete = false;     _subscriptionInitComplete = false;
  
     PEG_METHOD_EXIT();     PEG_METHOD_EXIT();
Line 1213 
Line 1428 
     PEG_METHOD_EXIT();     PEG_METHOD_EXIT();
 } }
  
 // Private, unimplemented constructor  
 OOPProviderManagerRouter::OOPProviderManagerRouter()  
 {  
 }  
   
 // Private, unimplemented constructor  
 OOPProviderManagerRouter::OOPProviderManagerRouter(  
     const OOPProviderManagerRouter&)  
     : ProviderManagerRouter(*this)  
 {  
 }  
   
 // Private, unimplemented assignment operator  
 OOPProviderManagerRouter& OOPProviderManagerRouter::operator=(  
     const OOPProviderManagerRouter&)  
 {  
     return *this;  
 }  
   
 Message* OOPProviderManagerRouter::processMessage(Message* message) Message* OOPProviderManagerRouter::processMessage(Message* message)
 { {
     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,
Line 1500 
Line 1696 
                     request->operationContext.get(IdentityContainer::NAME);                     request->operationContext.get(IdentityContainer::NAME);
                 userName = ic.getUserName();                 userName = ic.getUserName();
             }             }
             catch (Exception& e)              catch (Exception&)
             {             {
                 // If no IdentityContainer is present, default to the CIM                 // If no IdentityContainer is present, default to the CIM
                 // Server's user context                 // Server's user context
Line 1563 
Line 1759 
     if (!_providerAgentTable.lookup(key, pa))     if (!_providerAgentTable.lookup(key, pa))
     {     {
         pa = new ProviderAgentContainer(         pa = new ProviderAgentContainer(
             moduleName, userName, _indicationCallback,              moduleName, userName, _indicationCallback, _responseChunkCallback,
             _subscriptionInitComplete);             _subscriptionInitComplete);
         _providerAgentTable.insert(key, pa);         _providerAgentTable.insert(key, pa);
     }     }

Legend:
Removed from v.1.21  
changed lines
  Added in v.1.25.2.4
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