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

Diff for /pegasus/src/Pegasus/ProviderManager2/Attic/ProviderManagerService.cpp between version 1.54 and 1.69

version 1.54, 2004/06/29 23:42:54 version 1.69, 2005/07/19 19:05:35
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 //%2003////////////////////////////////////////////////////////////////////////  //%2005////////////////////////////////////////////////////////////////////////
 // //
 // 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.
 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.; // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.;
 // IBM Corp.; EMC Corporation, The Open Group. // IBM Corp.; EMC Corporation, The Open Group.
   // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
   // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
   // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
   // EMC Corporation; VERITAS Software 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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 //              Amit K Arora (amita@in.ibm.com) for PEP-101 //              Amit K Arora (amita@in.ibm.com) for PEP-101
 //              Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com) //              Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com)
 //              Seema Gupta (gseema@in.ibm.com for PEP135) //              Seema Gupta (gseema@in.ibm.com for PEP135)
   //              Jim Wunderlich (Jim_Wunderlich@prodigy.net)
 // //
 //%///////////////////////////////////////////////////////////////////////////// //%/////////////////////////////////////////////////////////////////////////////
  
 #include "ProviderManagerService.h" #include "ProviderManagerService.h"
  
 #include <Pegasus/Common/Config.h> #include <Pegasus/Common/Config.h>
   #include <Pegasus/Common/PegasusVersion.h>
 #include <Pegasus/Common/Constants.h> #include <Pegasus/Common/Constants.h>
 #include <Pegasus/Common/CIMMessage.h> #include <Pegasus/Common/CIMMessage.h>
 #include <Pegasus/Common/Thread.h> #include <Pegasus/Common/Thread.h>
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 #include <Pegasus/ProviderManager2/BasicProviderManagerRouter.h> #include <Pegasus/ProviderManager2/BasicProviderManagerRouter.h>
 #include <Pegasus/ProviderManager2/OOPProviderManagerRouter.h> #include <Pegasus/ProviderManager2/OOPProviderManagerRouter.h>
   #include <Pegasus/ProviderManager2/OperationResponseHandler.h>
  
 PEGASUS_NAMESPACE_BEGIN PEGASUS_NAMESPACE_BEGIN
  
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     _unloadIdleProvidersBusy = 0;     _unloadIdleProvidersBusy = 0;
  
     // Determine whether Out-of-Process Provider support is enabled      _basicProviderManagerRouter = 0;
       _oopProviderManagerRouter = 0;
   
       // Determine which ProviderManagerRouter(s) to use
   
     ConfigManager* configManager = ConfigManager::getInstance();     ConfigManager* configManager = ConfigManager::getInstance();
     if (String::equal(      Boolean forceProviderProcesses = String::equal(
         configManager->getCurrentValue("enableProviderProcesses"), "true"))          configManager->getCurrentValue("forceProviderProcesses"), "true");
   
   #ifdef PEGASUS_DISABLE_PROV_USERCTXT
       if (forceProviderProcesses)
     {     {
         _providerManagerRouter =          _oopProviderManagerRouter =
             new OOPProviderManagerRouter(indicationCallback);             new OOPProviderManagerRouter(indicationCallback);
     }     }
     else     else
     {     {
         _providerManagerRouter =          _basicProviderManagerRouter =
               new BasicProviderManagerRouter(indicationCallback);
       }
   #else
       _oopProviderManagerRouter =
           new OOPProviderManagerRouter(indicationCallback);
   
       if (!forceProviderProcesses)
       {
           _basicProviderManagerRouter =
             new BasicProviderManagerRouter(indicationCallback);             new BasicProviderManagerRouter(indicationCallback);
     }     }
   #endif
 } }
  
 ProviderManagerService::~ProviderManagerService(void) ProviderManagerService::~ProviderManagerService(void)
 { {
     delete _providerManagerRouter;      delete _basicProviderManagerRouter;
       delete _oopProviderManagerRouter;
     providerManagerService=NULL;     providerManagerService=NULL;
 } }
  
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         request->op->processing();         request->op->processing();
  
         _incomingQueue.enqueue(request->op);         _incomingQueue.enqueue(request->op);
           ThreadStatus rtn = PEGASUS_THREAD_OK;
          while (!_thread_pool->allocate_and_awaken(          while (( rtn =_thread_pool->allocate_and_awaken(
                      (void *)this, ProviderManagerService::handleCimOperation))                       (void *)this, ProviderManagerService::handleCimOperation)) != PEGASUS_THREAD_OK)
          {          {
              if (rtn==PEGASUS_THREAD_INSUFFICIENT_RESOURCES)
              pegasus_yield();              pegasus_yield();
              else
              {
                  Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE,
                           "Not enough threads to service provider manager." );
   
                  Tracer::trace(TRC_PROVIDERMANAGER, Tracer::LEVEL2,
                           "Could not allocate thread for %s.",
                            getQueueName());
              }
          }          }
     }     }
     else     else
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     return;     return;
 } }
  
   // Note: This method should not throw an exception.  It is used as a thread
   // entry point, and any exceptions thrown are ignored.
 PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL
 ProviderManagerService::handleCimOperation(void * arg) throw()  ProviderManagerService::handleCimOperation(void* arg)
 { {
     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,
         "ProviderManagerService::handleCimOperation");         "ProviderManagerService::handleCimOperation");
  
     if(arg == 0)      PEGASUS_ASSERT(arg != 0);
     {  
         // thread started with invalid argument.  
         return(PEGASUS_THREAD_RETURN(1));  
     }  
  
     // get the service from argument     // get the service from argument
     ProviderManagerService * service =     ProviderManagerService * service =
         reinterpret_cast<ProviderManagerService *>(arg);         reinterpret_cast<ProviderManagerService *>(arg);
       PEGASUS_ASSERT(service != 0);
  
       try
       {
     if(service->_incomingQueue.size() == 0)     if(service->_incomingQueue.size() == 0)
     {     {
         PEG_TRACE_STRING(TRC_PROVIDERMANAGER, Tracer::LEVEL4,              PEG_TRACE_STRING(TRC_PROVIDERMANAGER, Tracer::LEVEL2,
             "ProviderManagerService::handleCimOperation() called with no "             "ProviderManagerService::handleCimOperation() called with no "
                 "op node in queue");                 "op node in queue");
  
         PEG_METHOD_EXIT();         PEG_METHOD_EXIT();
   
         // thread started with no message in queue.  
         return(PEGASUS_THREAD_RETURN(1));         return(PEGASUS_THREAD_RETURN(1));
     }     }
  
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         return(PEGASUS_THREAD_RETURN(1));         return(PEGASUS_THREAD_RETURN(1));
     }     }
  
     AsyncRequest * request = static_cast<AsyncRequest *>(op->_request.next(0));          AsyncRequest* request =
               static_cast<AsyncRequest*>(op->_request.next(0));
  
     if ((request == 0) ||     if ((request == 0) ||
         (request->getType() != async_messages::ASYNC_LEGACY_OP_START))         (request->getType() != async_messages::ASYNC_LEGACY_OP_START))
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         return(PEGASUS_THREAD_RETURN(0));         return(PEGASUS_THREAD_RETURN(0));
     }     }
  
     try  
     {  
         Message* legacy =         Message* legacy =
             static_cast<AsyncLegacyOperationStart *>(request)->get_action();             static_cast<AsyncLegacyOperationStart *>(request)->get_action();
  
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             if (msg != 0)             if (msg != 0)
             {             {
                         AcceptLanguages* langs =                  AcceptLanguages* langs = new AcceptLanguages(
                     new AcceptLanguages(((AcceptLanguageListContainer)msg->operationContext.get                      ((AcceptLanguageListContainer)msg->operationContext.get(
                                                                                         (AcceptLanguageListContainer::NAME)).getLanguages());                          AcceptLanguageListContainer::NAME)).getLanguages());
                 Thread::setLanguages(langs);                 Thread::setLanguages(langs);
             }             }
             else             else
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             service->handleCimRequest(op, legacy);             service->handleCimRequest(op, legacy);
         }         }
     }     }
       catch (const Exception& e)
       {
           PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
               "Unexpected exception in handleCimOperation: " + e.getMessage());
       }
     catch(...)     catch(...)
     {     {
         // ATTN: log error          PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
               "Unexpected exception in handleCimOperation.");
     }     }
  
     PEG_METHOD_EXIT();     PEG_METHOD_EXIT();
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     PEGASUS_ASSERT(async != 0);     PEGASUS_ASSERT(async != 0);
  
     Message * response = 0;     Message * response = 0;
       Boolean consumerLookupFailed = false;
     if ((dynamic_cast<CIMOperationRequestMessage*>(request) != 0) ||  
         (dynamic_cast<CIMIndicationRequestMessage*>(request) != 0) ||  
         (request->getType() == CIM_EXPORT_INDICATION_REQUEST_MESSAGE) ||  
         (request->getType() == CIM_INITIALIZE_PROVIDER_REQUEST_MESSAGE))  
     {  
         // Handle CIMOperationRequestMessage, CIMExportIndicationRequestMessage,  
         // CIMIndicationRequestMessage, and CIMInitializeProviderRequestMessage.  
         // (These should be blocked when the provider module is disabled.)  
   
         //  
         // Get the provider module instance to check for a disabled module  
         //  
         CIMInstance providerModule;  
  
         if (request->getType() == CIM_EXPORT_INDICATION_REQUEST_MESSAGE)         if (request->getType() == CIM_EXPORT_INDICATION_REQUEST_MESSAGE)
         {         {
           //
             // Get a ProviderIdContainer for ExportIndicationRequestMessage.             // Get a ProviderIdContainer for ExportIndicationRequestMessage.
             // Note: This can be removed when the CIMExportRequestDispatcher             // Note: This can be removed when the CIMExportRequestDispatcher
             // is updated to add the ProviderIdContainer to the message.             // is updated to add the ProviderIdContainer to the message.
           //
           CIMInstance providerModule;
             CIMInstance provider;             CIMInstance provider;
             const CIMExportIndicationRequestMessage* expRequest =             const CIMExportIndicationRequestMessage* expRequest =
                 dynamic_cast<const CIMExportIndicationRequestMessage*>(request);                 dynamic_cast<const CIMExportIndicationRequestMessage*>(request);
             _providerRegistrationManager->lookupIndicationConsumer(          if (_providerRegistrationManager->lookupIndicationConsumer(
                 expRequest->destinationPath, provider, providerModule);                  expRequest->destinationPath, provider, providerModule))
           {
             request->operationContext.insert(             request->operationContext.insert(
                 ProviderIdContainer(providerModule, provider));                 ProviderIdContainer(providerModule, provider));
         }         }
         else         else
         {         {
               consumerLookupFailed = true;
           }
       }
   
       if (consumerLookupFailed)
       {
           CIMResponseMessage* cimResponse = request->buildResponse();
           cimResponse->cimException = PEGASUS_CIM_EXCEPTION(
               CIM_ERR_NOT_SUPPORTED, String::EMPTY);
           response = cimResponse;
       }
       else if ((dynamic_cast<CIMOperationRequestMessage*>(request) != 0) ||
           (dynamic_cast<CIMIndicationRequestMessage*>(request) != 0) ||
           (request->getType() == CIM_EXPORT_INDICATION_REQUEST_MESSAGE) ||
           (request->getType() == CIM_INITIALIZE_PROVIDER_REQUEST_MESSAGE))
       {
           // Handle CIMOperationRequestMessage, CIMExportIndicationRequestMessage,
           // CIMIndicationRequestMessage, and CIMInitializeProviderRequestMessage.
           // (These should be blocked when the provider module is disabled.)
   
           //
           // Get the provider module instance to check for a disabled module
           //
           CIMInstance providerModule;
   
             // The provider ID container is added to the OperationContext             // The provider ID container is added to the OperationContext
             // by the CIMOperationRequestDispatcher for all CIM operation             // by the CIMOperationRequestDispatcher for all CIM operation
             // requests to providers, so it does not need to be added again.             // requests to providers, so it does not need to be added again.
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             ProviderIdContainer pidc =             ProviderIdContainer pidc =
                 request->operationContext.get(ProviderIdContainer::NAME);                 request->operationContext.get(ProviderIdContainer::NAME);
             providerModule = pidc.getModule();             providerModule = pidc.getModule();
         }  
  
         //         //
         // Check if the target provider is disabled         // Check if the target provider is disabled
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             //             //
             // Forward the request to the appropriate ProviderManagerRouter             // Forward the request to the appropriate ProviderManagerRouter
             //             //
             response = _providerManagerRouter->processMessage(request);              response = _processMessage(request);
         }         }
     }     }
     else if (request->getType() == CIM_ENABLE_MODULE_REQUEST_MESSAGE)     else if (request->getType() == CIM_ENABLE_MODULE_REQUEST_MESSAGE)
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         try         try
         {         {
             // Forward the request to the ProviderManager             // Forward the request to the ProviderManager
             response = _providerManagerRouter->processMessage(request);              response = _processMessage(request);
  
             // If successful, update provider module status to OK             // If successful, update provider module status to OK
             // ATTN: Use CIMEnableModuleResponseMessage operationalStatus?             // ATTN: Use CIMEnableModuleResponseMessage operationalStatus?
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             }             }
  
             // Forward the request to the ProviderManager             // Forward the request to the ProviderManager
             response = _providerManagerRouter->processMessage(request);              response = _processMessage(request);
  
             // Update provider module status based on success or failure             // Update provider module status based on success or failure
             if (updateModuleStatus)             if (updateModuleStatus)
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     }     }
     else     else
     {     {
         response = _providerManagerRouter->processMessage(request);          response = _processMessage(request);
     }     }
  
     AsyncLegacyOperationResult * async_result =     AsyncLegacyOperationResult * async_result =
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     PEG_METHOD_EXIT();     PEG_METHOD_EXIT();
 } }
  
   void
   ProviderManagerService::handleCimResponse(CIMRequestMessage &request,
                                                                                                                                                                           CIMResponseMessage &response)
   {
           CIMStatusCode code = CIM_ERR_SUCCESS;
           String message;
   
           try
           {
                   // only incomplete messages are processed because the caller ends up
                   // sending the complete() stage
                   PEGASUS_ASSERT(response.isComplete() == false);
   
                   AsyncLegacyOperationStart *requestAsync =
                           dynamic_cast<AsyncLegacyOperationStart *>(request._async);
                   PEGASUS_ASSERT(requestAsync);
                   AsyncOpNode *op = requestAsync->op;
                   PEGASUS_ASSERT(op);
                   PEGASUS_ASSERT(! response._async);
                   response._async = new AsyncLegacyOperationResult
                           (requestAsync->getKey(), requestAsync->getRouting(), op, &response);
   
                   // set the destination
                   op->_op_dest = op->_callback_response_q;
   
                   MessageQueueService *service =
                           dynamic_cast<MessageQueueService *>(op->_callback_response_q);
   
                   PEGASUS_ASSERT(service);
   
                   // the last chunk MUST be sent last, so use execute the callback
                   // not all chunks are going through the dispatcher's chunk
                   // resequencer, so this must be a synchronous call here
                   // After the call is done, response and asyncResponse are now invalid
                   // as they have been sent and deleted externally
   
                   op->_async_callback(op, service, op->_callback_ptr);
           }
   
           catch(CIMException &e)
           {
                   code = e.getCode();
                   message = e.getMessage();
           }
           catch(Exception &e)
           {
                   code = CIM_ERR_FAILED;
                   message = e.getMessage();
           }
           catch(...)
           {
                   code = CIM_ERR_FAILED;
                   message = cimStatusCodeToString(code);
           }
   
           if (code !=  CIM_ERR_SUCCESS)
                   response.cimException = PEGASUS_CIM_EXCEPTION(code, message);
   }
   
   Message* ProviderManagerService::_processMessage(CIMRequestMessage* request)
   {
       Message* response = 0;
   
       if ((request->getType() == CIM_STOP_ALL_PROVIDERS_REQUEST_MESSAGE) ||
           (request->getType() ==
               CIM_SUBSCRIPTION_INIT_COMPLETE_REQUEST_MESSAGE) ||
           (request->getType() == CIM_NOTIFY_CONFIG_CHANGE_REQUEST_MESSAGE))
       {
           if (_basicProviderManagerRouter)
           {
               response = _basicProviderManagerRouter->processMessage(request);
           }
   
           if (_oopProviderManagerRouter)
           {
               // Note: These responses do not contain interesting data, so just
               // use the last one.
               if (response)
               {
                   delete response;
               }
   
               response = _oopProviderManagerRouter->processMessage(request);
           }
       }
       else
       {
           CIMInstance providerModule;
   
           if (request->getType() == CIM_ENABLE_MODULE_REQUEST_MESSAGE)
           {
               CIMEnableModuleRequestMessage* emReq =
                   dynamic_cast<CIMEnableModuleRequestMessage*>(request);
               providerModule = emReq->providerModule;
           }
           else if (request->getType() == CIM_DISABLE_MODULE_REQUEST_MESSAGE)
           {
               CIMDisableModuleRequestMessage* dmReq =
                   dynamic_cast<CIMDisableModuleRequestMessage*>(request);
               providerModule = dmReq->providerModule;
           }
           else
           {
               ProviderIdContainer pidc =
                   request->operationContext.get(ProviderIdContainer::NAME);
               providerModule = pidc.getModule();
           }
   
           Uint16 userContext = 0;
           Uint32 pos = providerModule.findProperty(
               PEGASUS_PROPERTYNAME_MODULE_USERCONTEXT);
           if (pos != PEG_NOT_FOUND)
           {
               providerModule.getProperty(pos).getValue().get(userContext);
           }
   
           // Forward the request to the appropriate ProviderManagerRouter, based
           // on the CIM Server configuration and the UserContext setting.
   
           ConfigManager* configManager = ConfigManager::getInstance();
           Boolean forceProviderProcesses = String::equal(
               configManager->getCurrentValue("forceProviderProcesses"), "true");
   
           if (forceProviderProcesses
   #ifndef PEGASUS_DISABLE_PROV_USERCTXT
               || (userContext == PG_PROVMODULE_USERCTXT_REQUESTOR)
               || (userContext == PG_PROVMODULE_USERCTXT_DESIGNATED)
               || ((userContext == PG_PROVMODULE_USERCTXT_PRIVILEGED) &&
                   !System::isPrivilegedUser(System::getEffectiveUserName()))
   #endif
              )
           {
               response = _oopProviderManagerRouter->processMessage(request);
           }
           else
           {
               response = _basicProviderManagerRouter->processMessage(request);
           }
       }
   
       return response;
   }
   
 void ProviderManagerService::unloadIdleProviders() void ProviderManagerService::unloadIdleProviders()
 { {
     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,     PEG_METHOD_ENTER(TRC_PROVIDERMANAGER,
         "ProviderManagerService::unloadIdleProviders");         "ProviderManagerService::unloadIdleProviders");
       ThreadStatus rtn = PEGASUS_THREAD_OK;
     // Ensure that only one _unloadIdleProvidersHandler thread runs at a time     // Ensure that only one _unloadIdleProvidersHandler thread runs at a time
     _unloadIdleProvidersBusy++;     _unloadIdleProvidersBusy++;
     if ((_unloadIdleProvidersBusy.value() == 1) &&     if ((_unloadIdleProvidersBusy.value() == 1) &&
         (_thread_pool->allocate_and_awaken(          ((rtn = _thread_pool->allocate_and_awaken(
              (void*)this, ProviderManagerService::_unloadIdleProvidersHandler)))               (void*)this, ProviderManagerService::_unloadIdleProvidersHandler))==PEGASUS_THREAD_OK))
     {     {
         // _unloadIdleProvidersBusy is decremented in         // _unloadIdleProvidersBusy is decremented in
         // _unloadIdleProvidersHandler         // _unloadIdleProvidersHandler
Line 522 
Line 719 
         // If we fail to allocate a thread, don't retry now.         // If we fail to allocate a thread, don't retry now.
         _unloadIdleProvidersBusy--;         _unloadIdleProvidersBusy--;
     }     }
       if (rtn != PEGASUS_THREAD_OK)
       {
           Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE,
                   "Not enough threads to unload idle providers.");
  
           Tracer::trace(TRC_PROVIDERMANAGER, Tracer::LEVEL2,
                   "Could not allocate thread for %s to unload idle providers.",
                   getQueueName());
       }
     PEG_METHOD_EXIT();     PEG_METHOD_EXIT();
 } }
  
Line 537 
Line 742 
         ProviderManagerService* myself =         ProviderManagerService* myself =
             reinterpret_cast<ProviderManagerService*>(arg);             reinterpret_cast<ProviderManagerService*>(arg);
  
           if (myself->_basicProviderManagerRouter)
           {
         try         try
         {         {
             myself->_providerManagerRouter->unloadIdleProviders();                  myself->_basicProviderManagerRouter->unloadIdleProviders();
         }         }
         catch (...)         catch (...)
         {         {
             // Ignore errors             // Ignore errors
             PEG_TRACE_STRING(TRC_PROVIDERMANAGER, Tracer::LEVEL2,             PEG_TRACE_STRING(TRC_PROVIDERMANAGER, Tracer::LEVEL2,
                 "Unexpected exception in _unloadIdleProvidersHandler");                      "Unexpected exception from "
                           "BasicProviderManagerRouter::_unloadIdleProviders");
               }
           }
   
           if (myself->_oopProviderManagerRouter)
           {
               try
               {
                   myself->_oopProviderManagerRouter->unloadIdleProviders();
               }
               catch (...)
               {
                   // Ignore errors
                   PEG_TRACE_STRING(TRC_PROVIDERMANAGER, Tracer::LEVEL2,
                       "Unexpected exception from "
                           "OOPProviderManagerRouter::_unloadIdleProviders");
               }
         }         }
  
         myself->_unloadIdleProvidersBusy--;         myself->_unloadIdleProvidersBusy--;
Line 625 
Line 849 
         try         try
         {         {
                 AcceptLanguageListContainer cntr = request->operationContext.get(AcceptLanguageListContainer::NAME);                 AcceptLanguageListContainer cntr = request->operationContext.get(AcceptLanguageListContainer::NAME);
         }catch(Exception &e)          }catch(const Exception &)
         {         {
                 request->operationContext.insert(AcceptLanguageListContainer(AcceptLanguages::EMPTY));                 request->operationContext.insert(AcceptLanguageListContainer(AcceptLanguages::EMPTY));
         }         }
Line 653 
Line 877 
         _indicationServiceQueueId);         _indicationServiceQueueId);
  
     providerManagerService->SendForget(asyncRequest);     providerManagerService->SendForget(asyncRequest);
   
   
   
   
   #ifdef PEGASUS_INDICATIONS_Q_THRESHOLD
   
       // See Comments in config.mak asociated with
       //  PEGASUS_INDICATIONS_Q_THRESHOLD
       //
       // if INDICATIONS_Q_STALL THRESHOLD is gt 0
       // then if there are over INDICATIONS_Q_STALL_THRESHOLD
       //           indications in the queue
       //      then force this provider to sleep until the queue count
       //      is lower than INDICATIONS_Q_RESUME_THRESHOLD
   
   static Mutex   indicationThresholdReportedLock;
   static Boolean indicationThresholdReported = false;
   
   #define INDICATIONS_Q_STALL_THRESHOLD PEGASUS_INDICATIONS_Q_THRESHOLD
   #define INDICATIONS_Q_RESUME_THRESHOLD (int)(PEGASUS_INDICATIONS_Q_THRESHOLD*.90)
   #define INDICATIONS_Q_STALL_DURATION 250 // milli-seconds
   
       MessageQueue * indicationsQueue = MessageQueue::lookup(_indicationServiceQueueId);
   
       if (((MessageQueueService *)indicationsQueue)->getIncomingCount() > INDICATIONS_Q_STALL_THRESHOLD)
         {
           AutoMutex indicationThresholdReportedAutoMutex(indicationThresholdReportedLock);
           if (!indicationThresholdReported)
             {
               indicationThresholdReported = true;
               indicationThresholdReportedAutoMutex.unlock();
   
               // make log entry to record que max exceeded
   
               Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::INFORMATION,
                  "Indication generation stalled: maximum queue count ($0) exceeded.",
                   INDICATIONS_Q_STALL_THRESHOLD);
             }
           else
             {
               indicationThresholdReportedAutoMutex.unlock();
             }
   
           while (((MessageQueueService *)indicationsQueue)->getIncomingCount() > INDICATIONS_Q_RESUME_THRESHOLD)
             {
               pegasus_sleep(INDICATIONS_Q_STALL_DURATION);
             }
   
           AutoMutex indicationThresholdReportedAutoMutex1(indicationThresholdReportedLock);
           //        indicationThresholdReportedLock.lock(pegasus_thread_self());
           if(indicationThresholdReported)
             {
               indicationThresholdReported = false;
               indicationThresholdReportedAutoMutex1.unlock();
   
               Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::INFORMATION,
                     "Indication generation resumed: current queue count = $0",
                     ((MessageQueueService *)indicationsQueue)->getIncomingCount() );
   
             }
           else
             {
               indicationThresholdReportedAutoMutex1.unlock();
             }
         }
   #endif /* INDICATIONS_Q_STALL_THRESHOLD */
   
 } }
  
 PEGASUS_NAMESPACE_END PEGASUS_NAMESPACE_END

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