(file) Return to MessageQueueService.cpp CVS log (file) (dir) Up to [Pegasus] / pegasus / src / Pegasus / Common

Diff for /pegasus/src/Pegasus/Common/MessageQueueService.cpp between version 1.17 and 1.151

version 1.17, 2002/02/12 23:28:58 version 1.151, 2008/11/05 05:24:34
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 //%////-*-c++-*-////////////////////////////////////////////////////////////////  //%2006////////////////////////////////////////////////////////////////////////
 // //
 // Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM  // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
   // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
   // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
   // 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.
   // 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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 // //
 //============================================================================== //==============================================================================
 // //
 // Author: Mike Day (mdday@us.ibm.com)  
 //  
 // Modified By:  
 //  
 //%///////////////////////////////////////////////////////////////////////////// //%/////////////////////////////////////////////////////////////////////////////
  
 #include "MessageQueueService.h" #include "MessageQueueService.h"
   #include <Pegasus/Common/Tracer.h>
   #include <Pegasus/Common/MessageLoader.h>
  
 PEGASUS_NAMESPACE_BEGIN PEGASUS_NAMESPACE_BEGIN
  
   
 cimom *MessageQueueService::_meta_dispatcher = 0; cimom *MessageQueueService::_meta_dispatcher = 0;
 AtomicInt MessageQueueService::_service_count = 0;  AtomicInt MessageQueueService::_service_count(0);
 AtomicInt MessageQueueService::_xid(1);  Mutex MessageQueueService::_meta_dispatcher_mutex;
 Mutex MessageQueueService::_meta_dispatcher_mutex  = Mutex();  
  
   static struct timeval deallocateWait = {300, 0};
  
 MessageQueueService::MessageQueueService(const char *name,  ThreadPool *MessageQueueService::_thread_pool = 0;
                                          Uint32 queueID,  
                                          Uint32 capabilities,  MessageQueueService::PollingList* MessageQueueService::_polling_list;
                                          Uint32 mask)  Mutex MessageQueueService::_polling_list_mutex;
    : Base(name, true,  queueID),  
      _capabilities(capabilities),  Thread* MessageQueueService::_polling_thread = 0;
      _mask(mask),  
      _die(0),  ThreadPool *MessageQueueService::get_thread_pool()
      _pending(true),  
      _incoming(true, 1000),  
      _incoming_queue_shutdown(0),  
      _req_thread(_req_proc, this, false)  
 { {
    _default_op_timeout.tv_sec = 30;     return _thread_pool;
    _default_op_timeout.tv_usec = 100;  }
  
    _meta_dispatcher_mutex.lock(pegasus_thread_self());  //
   // MAX_THREADS_PER_SVC_QUEUE
   //
   // JR Wunderlich Jun 6, 2005
   //
  
    if( _meta_dispatcher == 0 )  #define MAX_THREADS_PER_SVC_QUEUE_LIMIT 5000
   #define MAX_THREADS_PER_SVC_QUEUE_DEFAULT 5
   
   #ifndef MAX_THREADS_PER_SVC_QUEUE
   # define MAX_THREADS_PER_SVC_QUEUE MAX_THREADS_PER_SVC_QUEUE_DEFAULT
   #endif
   
   Uint32 max_threads_per_svc_queue;
   
   ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::polling_routine(
       void* parm)
    {    {
       PEGASUS_ASSERT( _service_count.value() == 0 );      Thread *myself = reinterpret_cast<Thread *>(parm);
       _meta_dispatcher = new cimom();      List<MessageQueueService, Mutex> *list =
       if (_meta_dispatcher == NULL )          reinterpret_cast<List<MessageQueueService, Mutex>*>(myself->get_parm());
   
       while (_stop_polling.get()  == 0)
       {       {
          _meta_dispatcher_mutex.unlock();          _polling_sem.wait();
  
          throw NullPointer();          if (_stop_polling.get() != 0)
           {
               break;
       }       }
  
           // The polling_routine thread must hold the lock on the
           // _polling_list while processing incoming messages.
           // This lock is used to give this thread ownership of
           // services on the _polling_routine list.
   
           // This is necessary to avoid confict with other threads
           // processing the _polling_list
           // (e.g., MessageQueueServer::~MessageQueueService).
   
           list->lock();
           MessageQueueService *service = list->front();
           ThreadStatus rtn = PEGASUS_THREAD_OK;
           while (service != NULL)
           {
               if ((service->_incoming.count() > 0) &&
                   (service->_die.get() == 0) &&
                   (service->_threads.get() < max_threads_per_svc_queue))
               {
                   // The _threads count is used to track the
                   // number of active threads that have been allocated
                   // to process messages for this service.
   
                   // The _threads count MUST be incremented while
                   // the polling_routine owns the _polling_thread
                   // lock and has ownership of the service object.
   
                   service->_threads++;
                   try
                   {
                       rtn = _thread_pool->allocate_and_awaken(
                           service, _req_proc, &_polling_sem);
                   }
                   catch (...)
                   {
                       service->_threads--;
   
                       // allocate_and_awaken should never generate an exception.
                       PEGASUS_ASSERT(0);
                   }
                   // if no more threads available, break from processing loop
                   if (rtn != PEGASUS_THREAD_OK )
                   {
                       service->_threads--;
                       PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL1,
                           "Could not allocate thread for %s.  Queue has %d "
                               "messages waiting and %d threads servicing."
                               "Skipping the service for right now. ",
                           service->getQueueName(),
                           service->_incoming.count(),
                           service->_threads.get()));
   
                       Threads::yield();
                       service = NULL;
                   }
               }
               if (service != NULL)
               {
                   service = list->next_of(service);
               }
           }
           list->unlock();
       }
       return ThreadReturnType(0);
    }    }
    _service_count++;  
  
  
   Semaphore MessageQueueService::_polling_sem(0);
   AtomicInt MessageQueueService::_stop_polling(0);
  
    if( false == register_service(name, _capabilities, _mask) )  
   MessageQueueService::MessageQueueService(
       const char* name,
       Uint32 queueID)
       : Base(name, true,  queueID),
         _die(0),
         _threads(0),
         _incoming(),
         _incoming_queue_shutdown(0)
   {
       _isRunning = true;
   
       max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE;
   
       // if requested thread max is out of range, then set to
       // MAX_THREADS_PER_SVC_QUEUE_LIMIT
   
       if ((max_threads_per_svc_queue < 1) ||
           (max_threads_per_svc_queue > MAX_THREADS_PER_SVC_QUEUE_LIMIT))
    {    {
       _meta_dispatcher_mutex.unlock();          max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE_LIMIT;
       throw BindFailed("MessageQueueService Base Unable to register with  Meta Dispatcher");  
    }    }
  
    _meta_dispatcher_mutex.unlock();      PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3,
          "max_threads_per_svc_queue set to %u.", max_threads_per_svc_queue));
   
       AutoMutex autoMut(_meta_dispatcher_mutex);
  
    _req_thread.run();      if (_meta_dispatcher == 0)
       {
           _stop_polling = 0;
           PEGASUS_ASSERT(_service_count.get() == 0);
           _meta_dispatcher = new cimom();
   
           //  _thread_pool = new ThreadPool(initial_cnt, "MessageQueueService",
           //   minimum_cnt, maximum_cnt, deallocateWait);
           //
           _thread_pool =
               new ThreadPool(0, "MessageQueueService", 0, 0, deallocateWait);
 } }
       _service_count++;
  
       _get_polling_list()->insert_back(this);
   }
  
 MessageQueueService::~MessageQueueService(void)  
   MessageQueueService::~MessageQueueService()
 { {
    _die = 1;    _die = 1;
    if (_incoming_queue_shutdown.value() == 0 )  
       // The polling_routine locks the _polling_list while
       // processing the incoming messages for services on the
       // list.  Deleting the service from the _polling_list
       // prior to processing, avoids synchronization issues
       // with the _polling_routine.
   
       // ATTN: added to prevent assertion in List in which the list does not
       // contain this element.
   
       if (_get_polling_list()->contains(this))
           _get_polling_list()->remove(this);
   
       // ATTN: The code for closing the _incoming queue
       // is not working correctly. In OpenPegasus 2.5,
       // execution of the following code is very timing
       // dependent. This needs to be fix.
       // See Bug 4079 for details.
       if (_incoming_queue_shutdown.get() == 0)
       {
           _shutdown_incoming_queue();
       }
   
       // Wait until all threads processing the messages
       // for this service have completed.
   
       while (_threads.get() > 0)
    {    {
        _incoming.shutdown_queue();          Threads::yield();
        _req_thread.join();  
    }    }
  
    _meta_dispatcher_mutex.lock(pegasus_thread_self());      {
           AutoMutex autoMut(_meta_dispatcher_mutex);
    _service_count--;    _service_count--;
    if (_service_count.value() == 0 )          if (_service_count.get() == 0)
           {
   
               _stop_polling++;
               _polling_sem.signal();
               if (_polling_thread)
    {    {
                   _polling_thread->join();
                   delete _polling_thread;
                   _polling_thread = 0;
               }
       _meta_dispatcher->_shutdown_routed_queue();       _meta_dispatcher->_shutdown_routed_queue();
       delete _meta_dispatcher;       delete _meta_dispatcher;
    }              _meta_dispatcher = 0;
    _meta_dispatcher_mutex.unlock();  
  
               delete _thread_pool;
               _thread_pool = 0;
 } }
       } // mutex unlocks here
  
       // Clean up any extra stuff on the queue.
       AsyncOpNode* op = 0;
 void MessageQueueService::_shutdown_incoming_queue(void)      while ((op = _incoming.dequeue()))
 { {
           delete op;
       }
   }
  
    if (_incoming_queue_shutdown.value() > 0 )  void MessageQueueService::_shutdown_incoming_queue()
   {
       if (_incoming_queue_shutdown.get() > 0)
       return ;       return ;
  
    AsyncIoctl *msg = new AsyncIoctl(get_next_xid(),      AsyncIoctl *msg = new AsyncIoctl(
                                     0,                                     0,
                                     _queueId,                                     _queueId,
                                     _queueId,                                     _queueId,
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                                     0);                                     0);
  
    msg->op = get_op();    msg->op = get_op();
    msg->op->_request.insert_first(msg);      msg->op->_flags = ASYNC_OPFLAGS_FIRE_AND_FORGET;
   
   
  
    _incoming.insert_last_wait(msg->op);      msg->op->_op_dest = this;
    msg->op->_client_sem.wait();      msg->op->_request.reset(msg);
       if (_incoming.enqueue(msg->op))
       {
           _polling_sem.signal();
       }
       else
       {
           // This means the queue has already been shut-down (happens  when there
           // are two AsyncIoctrl::IO_CLOSE messages generated and one got first
           // processed.
           delete msg;
       }
   }
  
    msg->op->lock();  
    AsyncReply * reply = static_cast<AsyncReply *>(msg->op->_response.remove_first());  
    reply->op = 0;  
    msg->op->unlock();  
    delete reply;  
  
    msg->op->_request.remove(msg);  void MessageQueueService::enqueue(Message* msg)
    msg->op->_state |= ASYNC_OPSTATE_RELEASED;  {
    return_op(msg->op);      PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, "MessageQueueService::enqueue()");
  
    msg->op = 0;      Base::enqueue(msg);
    delete msg;  
    _req_thread.join();  
  
       PEG_METHOD_EXIT();
 } }
  
  
 PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(void * parm)  ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(
       void* parm)
 { {
    Thread *myself = reinterpret_cast<Thread *>(parm);      MessageQueueService* service =
    MessageQueueService *service = reinterpret_cast<MessageQueueService *>(myself->get_parm());          reinterpret_cast<MessageQueueService*>(parm);
       PEGASUS_ASSERT(service != 0);
       try
       {
           if (service->_die.get() != 0)
           {
               service->_threads--;
               return 0;
           }
    // pull messages off the incoming queue and dispatch them. then    // pull messages off the incoming queue and dispatch them. then
    // check pending messages that are non-blocking    // check pending messages that are non-blocking
    AsyncOpNode *operation = 0;    AsyncOpNode *operation = 0;
  
    while ( service->_die.value() == 0 )          // many operations may have been queued.
           do
    {    {
       try              operation = service->_incoming.dequeue();
   
               if (operation)
       {       {
          operation = service->_incoming.remove_first_wait();                 operation->_service_ptr = service;
                  service->_handle_incoming_operation(operation);
       }       }
       catch(ListClosed & )          } while (operation);
       }
       catch (const Exception& e)
       {       {
          break;          PEG_TRACE((TRC_DISCARDED_DATA, Tracer::LEVEL1,
               "Caught exception: \"%s\".  Exiting _req_proc.",
               (const char*)e.getMessage().getCString()));
       }       }
       if( operation )      catch (...)
       {       {
           PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL1,
          service->_handle_incoming_operation(operation, myself, service);              "Caught unrecognized exception.  Exiting _req_proc.");
       }       }
       service->_threads--;
       return 0;
   }
   
   
   void MessageQueueService::_sendwait_callback(
       AsyncOpNode* op,
       MessageQueue* q,
       void *parm)
   {
       op->_client_sem.signal();
    }    }
  
    myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );  
    return(0);  // callback function is responsible for cleaning up all resources
   // including op, op->_callback_node, and op->_callback_ptr
   void MessageQueueService::_handle_async_callback(AsyncOpNode* op)
   {
       PEGASUS_ASSERT(op->_flags == ASYNC_OPFLAGS_CALLBACK);
       // note that _callback_node may be different from op
       // op->_callback_response_q is a "this" pointer we can use for
       // static callback methods
       op->_async_callback(
           op->_callback_node, op->_callback_response_q, op->_callback_ptr);
 } }
  
  
 void MessageQueueService::_handle_incoming_operation(AsyncOpNode *operation,  void MessageQueueService::_handle_incoming_operation(AsyncOpNode* operation)
                                                      Thread *thread,  
                                                      MessageQueue *queue)  
 { {
    if ( operation != 0 )    if ( operation != 0 )
    {    {
       operation->lock();          Message *rq = operation->_request.get();
       Message *rq = operation->_request.next(0);  
       operation->unlock();  
  
   // optimization <<< Thu Mar  7 21:04:05 2002 mdd >>>
   // move this to the bottom of the loop when the majority of
   // messages become async messages.
   
           // divert legacy messages to handleEnqueue
           if ((rq != 0) && (!(rq->getMask() & MessageMask::ha_async)))
           {
               operation->_request.release();
               // delete the op node
               return_op(operation);
               handleEnqueue(rq);
               return;
           }
   
           if ((operation->_flags & ASYNC_OPFLAGS_CALLBACK) &&
               (operation->_state & ASYNC_OPSTATE_COMPLETE))
           {
               _handle_async_callback(operation);
           }
           else
           {
       PEGASUS_ASSERT(rq != 0 );       PEGASUS_ASSERT(rq != 0 );
       PEGASUS_ASSERT(rq->getMask() & message_mask::ha_async );  
       PEGASUS_ASSERT(rq->getMask() & message_mask::ha_request);  
       static_cast<AsyncMessage *>(rq)->_myself = thread;  
       static_cast<AsyncMessage *>(rq)->_service = queue;  
       _handle_async_request(static_cast<AsyncRequest *>(rq));       _handle_async_request(static_cast<AsyncRequest *>(rq));
    }    }
       }
    return;    return;
   
 } }
  
 void MessageQueueService::_handle_async_request(AsyncRequest *req) void MessageQueueService::_handle_async_request(AsyncRequest *req)
 { {
    if ( req != 0 )      MessageType type = req->getType();
       if (type == ASYNC_IOCTL)
    {    {
       req->op->processing();  
   
       Uint32 type = req->getType();  
       if( type == async_messages::HEARTBEAT )  
          handle_heartbeat_request(req);  
       else if (type == async_messages::IOCTL)  
          handle_AsyncIoctl(static_cast<AsyncIoctl *>(req));          handle_AsyncIoctl(static_cast<AsyncIoctl *>(req));
       else if (type == async_messages::CIMSERVICE_START)      }
       else if (type == ASYNC_CIMSERVICE_START)
       {
          handle_CimServiceStart(static_cast<CimServiceStart *>(req));          handle_CimServiceStart(static_cast<CimServiceStart *>(req));
       else if (type == async_messages::CIMSERVICE_STOP)      }
       else if (type == ASYNC_CIMSERVICE_STOP)
       {
          handle_CimServiceStop(static_cast<CimServiceStop *>(req));          handle_CimServiceStop(static_cast<CimServiceStop *>(req));
       else if (type == async_messages::CIMSERVICE_PAUSE)      }
          handle_CimServicePause(static_cast<CimServicePause *>(req));  
       else if (type == async_messages::CIMSERVICE_RESUME)  
          handle_CimServiceResume(static_cast<CimServiceResume *>(req));  
       else if ( type == async_messages::ASYNC_OP_START)  
          handle_AsyncOperationStart(static_cast<AsyncOperationStart *>(req));  
       else       else
       {       {
          // we don't handle this request message          // we don't handle this request message
          _make_response(req, async_results::CIM_NAK );          _make_response(req, async_results::CIM_NAK );
       }       }
    }    }
 }  
   
  
 Boolean MessageQueueService::_enqueueResponse( Boolean MessageQueueService::_enqueueResponse(
    Message* request,    Message* request,
    Message* response)    Message* response)
 { {
    if(request->_async != 0 )      PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,
           "MessageQueueService::_enqueueResponse");
   
       if (request->getMask() & MessageMask::ha_async)
    {    {
       Uint32 mask = request->_async->getMask();          if (response->getMask() & MessageMask::ha_async)
       if ( mask & message_mask::ha_async)  
       {       {
          if ( mask & message_mask::ha_request)              _completeAsyncResponse(
                   static_cast<AsyncRequest *>(request),
                   static_cast<AsyncReply *>(response));
   
               PEG_METHOD_EXIT();
               return true;
           }
       }
   
       AsyncRequest* asyncRequest =
           static_cast<AsyncRequest*>(request->get_async());
   
       if (asyncRequest != 0)
          {          {
             AsyncOpNode *op = (static_cast<AsyncRequest *>(request->_async)->op);          PEGASUS_ASSERT(asyncRequest->getMask() &
               (MessageMask::ha_async | MessageMask::ha_request));
   
           AsyncOpNode* op = asyncRequest->op;
   
           // the legacy request is going to be deleted by its handler
           // remove it from the op node
   
           static_cast<AsyncLegacyOperationStart *>(asyncRequest)->get_action();
  
             AsyncLegacyOperationResult *async_result =             AsyncLegacyOperationResult *async_result =
                new AsyncLegacyOperationResult(                new AsyncLegacyOperationResult(
                   (static_cast<AsyncRequest *>(request->_async))->getKey(),  
                   (static_cast<AsyncRequest *>(request->_async))->getRouting(),  
                   op,                   op,
                   response);                   response);
             _completeAsyncResponse(static_cast<AsyncRequest *>(request->_async),          _completeAsyncResponse(
                                    async_result,              asyncRequest,
                                    ASYNC_OPSTATE_COMPLETE,              async_result);
                                    0);  
           PEG_METHOD_EXIT();
             return true;             return true;
          }          }
       }  
    }      // ensure that the destination queue is in response->dest
    return false;      PEG_METHOD_EXIT();
       return SendForget(response);
 } }
  
 void MessageQueueService::_make_response(AsyncRequest *req, Uint32 code)  void MessageQueueService::_make_response(Message* req, Uint32 code)
 { {
    AsyncReply *reply =      cimom::_make_response(req, code);
       new AsyncReply(async_messages::REPLY,  
                      req->getKey(),  
                      req->getRouting(),  
                      0,  
                      req->op,  
                      code,  
                      req->resp,  
                      false);  
    _completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 );  
 } }
  
  
 void MessageQueueService::_completeAsyncResponse(AsyncRequest *request,  void MessageQueueService::_completeAsyncResponse(
                                                 AsyncReply *reply,      AsyncRequest* request,
                                                 Uint32 state,      AsyncReply* reply)
                                                 Uint32 flag)  
 { {
    PEGASUS_ASSERT(request != 0  && reply != 0 );      PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,
           "MessageQueueService::_completeAsyncResponse");
    AsyncOpNode *op = request->op;  
    op->lock();  
    op->_state |= state ;  
    op->_flags |= flag;  
    gettimeofday(&(op->_updated), NULL);  
    if ( false == op->_response.exists(reinterpret_cast<void *>(reply)) )  
       op->_response.insert_last(reply);  
    op->unlock();  
   
    op->_client_sem.signal();  
  
       cimom::_completeAsyncResponse(request, reply);
  
       PEG_METHOD_EXIT();
 } }
  
  
   void MessageQueueService::_complete_op_node(
 Boolean MessageQueueService::accept_async(AsyncOpNode *op)      AsyncOpNode* op)
 { {
    if (_incoming_queue_shutdown.value() > 0 )      cimom::_complete_op_node(op);
       return false;  }
  
    op->lock();  
    Message *rq = op->_request.next(0);  
    op->unlock();  
  
    if( true == messageOK(rq) &&  _die.value() == 0  )  Boolean MessageQueueService::accept_async(AsyncOpNode* op)
    {    {
       _incoming.insert_last_wait(op);      if (_incoming_queue_shutdown.get() > 0)
       return true;  
    }  
    return false;    return false;
 }      if (_polling_thread == NULL)
   
 Boolean MessageQueueService::messageOK(const Message *msg)  
 { {
    if (_incoming_queue_shutdown.value() > 0 )          _polling_thread = new Thread(
       return false;              polling_routine,
               reinterpret_cast<void *>(_get_polling_list()),
    if ( msg != 0 )              false);
           ThreadStatus tr = PEGASUS_THREAD_OK;
           while ( (tr =_polling_thread->run()) != PEGASUS_THREAD_OK)
    {    {
       Uint32 mask = msg->getMask();              if (tr == PEGASUS_THREAD_INSUFFICIENT_RESOURCES)
       if ( mask & message_mask::ha_async)                  Threads::yield();
          if ( mask & message_mask::ha_request)              else
             return true;                  throw Exception(MessageLoaderParms(
                       "Common.MessageQueueService.NOT_ENOUGH_THREAD",
                       "Could not allocate thread for the polling thread."));
    }    }
    return false;  
 } }
       if (_die.get() == 0)
   
 void MessageQueueService::handleEnqueue(void)  
 { {
    Message *msg = dequeue();          if (_incoming.enqueue(op))
    if( msg )  
    {    {
       delete msg;              _polling_sem.signal();
               return true;
    }    }
 } }
       return false;
 void MessageQueueService::handle_heartbeat_request(AsyncRequest *req)  
 {  
    // default action is to echo a heartbeat response  
   
    AsyncReply *reply =  
       new AsyncReply(async_messages::HEARTBEAT,  
                      req->getKey(),  
                      req->getRouting(),  
                      0,  
                      req->op,  
                      async_results::OK,  
                      req->resp,  
                      false);  
    _completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 );  
 }  
   
   
 void MessageQueueService::handle_heartbeat_reply(AsyncReply *rep)  
 {  
    ;  
 } }
  
 void MessageQueueService::handle_AsyncIoctl(AsyncIoctl *req) void MessageQueueService::handle_AsyncIoctl(AsyncIoctl *req)
 { {
   
    switch( req->ctl )    switch( req->ctl )
    {    {
       case AsyncIoctl::IO_CLOSE:       case AsyncIoctl::IO_CLOSE:
       {       {
          // save my bearings              MessageQueueService *service =
          Thread *myself = req->_myself;                  static_cast<MessageQueueService *>(req->op->_service_ptr);
          MessageQueueService *service = static_cast<MessageQueueService *>(req->_service);  
  
          // respond to this message.  #ifdef MESSAGEQUEUESERVICE_DEBUG
               PEGASUS_STD(cout) << service->getQueueName() <<
                   " Received AsyncIoctl::IO_CLOSE " << PEGASUS_STD(endl);
   #endif
   
               // respond to this message. this is fire and forget, so we
               // don't need to delete anything.
               // this takes care of two problems that were being found
               // << Thu Oct  9 10:52:48 2003 mdd >>
          _make_response(req, async_results::OK);          _make_response(req, async_results::OK);
          // ensure we do not accept any further messages          // ensure we do not accept any further messages
  
          // ensure we don't recurse on IO_CLOSE          // ensure we don't recurse on IO_CLOSE
          if( _incoming_queue_shutdown.value() > 0 )              if (_incoming_queue_shutdown.get() > 0)
             break;             break;
  
          // set the closing flag          // set the closing flag
Line 384 
Line 572 
          // empty out the queue          // empty out the queue
          while( 1 )          while( 1 )
          {          {
             AsyncOpNode *operation;                  AsyncOpNode* operation = 0;
             try             try
             {             {
                operation = service->_incoming.remove_first();                      operation = service->_incoming.dequeue();
             }             }
             catch(IPCException & )                  catch (...)
             {             {
                break;                break;
             }             }
             if( operation )             if( operation )
             {             {
                service->_handle_incoming_operation(operation, myself, service);                      operation->_service_ptr = service;
                       service->_handle_incoming_operation(operation);
             }             }
             else             else
                break;                break;
          } // message processing loop          } // message processing loop
  
          // shutdown the AsyncDQueue              // shutdown the AsyncQueue
          service->_incoming.shutdown_queue();              service->_incoming.close();
          // exit the thread !  
          myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );  
          return;          return;
       }       }
  
Line 415 
Line 602 
  
 void MessageQueueService::handle_CimServiceStart(CimServiceStart *req) void MessageQueueService::handle_CimServiceStart(CimServiceStart *req)
 { {
    // clear the stoped bit and update  #ifdef MESSAGEQUEUESERVICE_DEBUG
    _capabilities &= (~(module_capabilities::stopped));      PEGASUS_STD(cout) << getQueueName() << "received START" <<
           PEGASUS_STD(endl);
   #endif
       PEGASUS_ASSERT(!_isRunning);
       _isRunning = true;
    _make_response(req, async_results::OK);    _make_response(req, async_results::OK);
    // now tell the meta dispatcher we are stopped  
    update_service(_capabilities, _mask);  
   
 } }
   
 void MessageQueueService::handle_CimServiceStop(CimServiceStop *req) void MessageQueueService::handle_CimServiceStop(CimServiceStop *req)
 { {
    // set the stopeed bit and update  #ifdef MESSAGEQUEUESERVICE_DEBUG
    _capabilities |= module_capabilities::stopped;      PEGASUS_STD(cout) << getQueueName() << "received STOP" << PEGASUS_STD(endl);
    _make_response(req, async_results::CIM_STOPPED);  #endif
    // now tell the meta dispatcher we are stopped      PEGASUS_ASSERT(_isRunning);
    update_service(_capabilities, _mask);      _isRunning = false;
       _make_response(req, async_results::CIM_SERVICE_STOPPED);
 }  
 void MessageQueueService::handle_CimServicePause(CimServicePause *req)  
 {  
    // set the paused bit and update  
    _capabilities |= module_capabilities::paused;  
    update_service(_capabilities, _mask);  
    _make_response(req, async_results::CIM_PAUSED);  
    // now tell the meta dispatcher we are stopped  
 }  
 void MessageQueueService::handle_CimServiceResume(CimServiceResume *req)  
 {  
    // clear the paused  bit and update  
    _capabilities &= (~(module_capabilities::paused));  
    update_service(_capabilities, _mask);  
    _make_response(req, async_results::OK);  
    // now tell the meta dispatcher we are stopped  
 } }
  
 void MessageQueueService::handle_AsyncOperationStart(AsyncOperationStart *req)  AsyncOpNode* MessageQueueService::get_op()
 { {
    _make_response(req, async_results::CIM_NAK);     AsyncOpNode* op = new AsyncOpNode();
   
      op->_state = ASYNC_OPSTATE_UNKNOWN;
      op->_flags = ASYNC_OPFLAGS_UNKNOWN;
   
      return op;
 } }
  
 void MessageQueueService::handle_AsyncOperationResult(AsyncOperationResult *req)  void MessageQueueService::return_op(AsyncOpNode* op)
 { {
    ;      delete op;
 } }
  
  
 void MessageQueueService::handle_AsyncLegacyOperationStart(AsyncLegacyOperationStart *req)  Boolean MessageQueueService::SendAsync(
       AsyncOpNode* op,
       Uint32 destination,
       void (*callback)(AsyncOpNode*, MessageQueue*, void*),
       MessageQueue* callback_response_q,
       void* callback_ptr)
 { {
    // remove the legacy message from the request and enqueue it to its destination      return _sendAsync(
    Uint32 result = async_results::CIM_NAK;          op,
           destination,
           callback,
           callback_response_q,
           callback_ptr,
           ASYNC_OPFLAGS_CALLBACK);
  
    Message *legacy = req->act;  
    if ( legacy != 0 )  
    {  
       MessageQueue* queue = MessageQueue::lookup(req->legacy_destination);  
       if( queue != 0 )  
       {  
         // Enqueue the response:  
          queue->enqueue(legacy);  
          result = async_results::OK;  
       }  
    }  
    _make_response(req, result);  
 } }
  
 void MessageQueueService::handle_AsyncLegacyOperationResult(AsyncLegacyOperationResult *rep)  Boolean MessageQueueService::_sendAsync(
       AsyncOpNode* op,
       Uint32 destination,
       void (*callback)(AsyncOpNode*, MessageQueue*, void*),
       MessageQueue* callback_response_q,
       void* callback_ptr,
       Uint32 flags)
   {
       PEGASUS_ASSERT(op != 0 && callback != 0);
   
       // destination of this message
       op->_op_dest = MessageQueue::lookup(destination);
       if (op->_op_dest == 0)
 { {
    ;          return false;
 } }
       op->_flags = flags;
       // initialize the callback data
       // callback function to be executed by recpt. of response
       op->_async_callback = callback;
       // the op node
       op->_callback_node = op;
       // the queue that will receive the response
       op->_callback_response_q = callback_response_q;
       // user data for callback
       op->_callback_ptr = callback_ptr;
       // I am the originator of this request
       op->_callback_request_q = this;
  
 AsyncOpNode *MessageQueueService::get_op(void)      return  _meta_dispatcher->route_async(op);
   }
   
   Boolean MessageQueueService::SendForget(Message* msg)
 { {
    AsyncOpNode *op = new AsyncOpNode();      AsyncOpNode* op = 0;
       Uint32 mask = msg->getMask();
  
    op->_state = ASYNC_OPSTATE_UNKNOWN;      if (mask & MessageMask::ha_async)
    op->_flags = ASYNC_OPFLAGS_SINGLE | ASYNC_OPFLAGS_NORMAL;      {
           op = (static_cast<AsyncMessage *>(msg))->op;
       }
  
    return op;      if (op == 0)
       {
           op = get_op();
           op->_request.reset(msg);
           if (mask & MessageMask::ha_async)
           {
               (static_cast<AsyncMessage *>(msg))->op = op;
           }
 } }
  
 void MessageQueueService::return_op(AsyncOpNode *op)      PEGASUS_ASSERT(op->_flags == ASYNC_OPFLAGS_UNKNOWN);
       PEGASUS_ASSERT(op->_state == ASYNC_OPSTATE_UNKNOWN);
       op->_op_dest = MessageQueue::lookup(msg->dest);
       if (op->_op_dest == 0)
 { {
    PEGASUS_ASSERT(op->read_state() & ASYNC_OPSTATE_RELEASED );          return_op(op);
    delete op;          return false;
 } }
  
       op->_flags = ASYNC_OPFLAGS_FIRE_AND_FORGET;
   
       // now see if the meta dispatcher will take it
       return  _meta_dispatcher->route_async(op);
   }
  
  
 AsyncReply *MessageQueueService::SendWait(AsyncRequest *request) AsyncReply *MessageQueueService::SendWait(AsyncRequest *request)
Line 508 
Line 729 
  
    Boolean destroy_op = false;    Boolean destroy_op = false;
  
    if (request->op == false)      if (request->op == 0)
    {    {
       request->op = get_op();       request->op = get_op();
       request->op->_request.insert_first(request);          request->op->_request.reset(request);
       destroy_op = true;       destroy_op = true;
    }    }
  
    request->block = true;      PEGASUS_ASSERT(request->op->_flags == ASYNC_OPFLAGS_UNKNOWN);
    request->op->_state &= ~ASYNC_OPSTATE_COMPLETE;      PEGASUS_ASSERT(request->op->_state == ASYNC_OPSTATE_UNKNOWN);
    request->op->put_response(0);  
  
    // first link it on our pending list      request->block = false;
    // _pending.insert_last_wait(request->op);      _sendAsync(
           request->op,
    // now see if the meta dispatcher will take it          request->dest,
           _sendwait_callback,
           this,
           (void *)0,
           ASYNC_OPFLAGS_PSEUDO_CALLBACK);
  
    if (true == _meta_dispatcher->route_async(request->op))  
    {  
       request->op->_client_sem.wait();       request->op->_client_sem.wait();
       PEGASUS_ASSERT(request->op->_state & ASYNC_OPSTATE_COMPLETE);  
   
    }  
  
    request->op->lock();      AsyncReply* rpl = static_cast<AsyncReply *>(request->op->removeResponse());
    AsyncReply * rpl = static_cast<AsyncReply *>(request->op->_response.remove_first());  
    rpl->op = 0;    rpl->op = 0;
    request->op->unlock();  
  
    if( destroy_op == true)    if( destroy_op == true)
    {    {
       request->op->lock();          request->op->_request.release();
       request->op->_request.remove(request);  
       request->op->_state |= ASYNC_OPSTATE_RELEASED;  
       request->op->unlock();  
   
       return_op(request->op);       return_op(request->op);
       request->op = 0;       request->op = 0;
    }    }
   
    return rpl;    return rpl;
 } }
  
   Uint32 MessageQueueService::find_service_qid(const String &name)
 Boolean MessageQueueService::register_service(String name,  
                                               Uint32 capabilities,  
                                               Uint32 mask)  
   
 { {
    RegisterCimService *msg = new RegisterCimService(get_next_xid(),      MessageQueue *queue = MessageQueue::lookup((const char*)name.getCString());
                                                     0,      PEGASUS_ASSERT(queue);
                                                     true,      return queue->getQueueId();
                                                     name,  
                                                     capabilities,  
                                                     mask,  
                                                     _queueId);  
    Boolean registered = false;  
    AsyncReply *reply = static_cast<AsyncReply *>(SendWait( msg ));  
   
    if ( reply != 0 )  
    {  
       if(reply->getMask() & message_mask:: ha_async)  
       {  
          if(reply->getMask() & message_mask::ha_reply)  
          {  
             if(reply->result == async_results::OK ||  
                reply->result == async_results::MODULE_ALREADY_REGISTERED )  
                registered = true;  
          }  
       }       }
  
       delete reply;  MessageQueueService::PollingList* MessageQueueService::_get_polling_list()
    }  
    delete msg;  
    return registered;  
 }  
   
 Boolean MessageQueueService::update_service(Uint32 capabilities, Uint32 mask)  
 { {
       _polling_list_mutex.lock();
  
       if (!_polling_list)
           _polling_list = new PollingList;
  
    UpdateCimService *msg = new UpdateCimService(get_next_xid(),      _polling_list_mutex.unlock();
                                                 0,  
                                                 true,  
                                                 _queueId,  
                                                 _capabilities,  
                                                 _mask);  
    Boolean registered = false;  
  
    AsyncMessage *reply = SendWait(msg);      return _polling_list;
    if (reply)  
    {  
       if(reply->getMask() & message_mask:: ha_async)  
       {  
          if(reply->getMask() & message_mask::ha_reply)  
          {  
             if(static_cast<AsyncReply *>(reply)->result == async_results::OK)  
                registered = true;  
          }  
       }  
       delete reply;  
    }  
    delete msg;  
    return registered;  
 }  
   
   
 Boolean MessageQueueService::deregister_service(void)  
 {  
   
    _meta_dispatcher->deregister_module(_queueId);  
    return true;  
 }  
   
   
 void MessageQueueService::find_services(String name,  
                                         Uint32 capabilities,  
                                         Uint32 mask,  
                                         Array<Uint32> *results)  
 {  
   
    if( results == 0 )  
       throw NullPointer();  
   
    results->clear();  
   
    FindServiceQueue *req =  
       new FindServiceQueue(get_next_xid(),  
                            0,  
                            _queueId,  
                            true,  
                            name,  
                            capabilities,  
                            mask);  
   
    AsyncMessage *reply = SendWait(req);  
    if(reply)  
    {  
       if( reply->getMask() & message_mask::ha_async)  
       {  
          if(reply->getMask() & message_mask::ha_reply)  
          {  
             if(reply->getType() == async_messages::FIND_SERVICE_Q_RESULT)  
             {  
                if( (static_cast<FindServiceQueueResult *>(reply))->result == async_results::OK )  
                   *results = (static_cast<FindServiceQueueResult *>(reply))->qids;  
             }  
          }  
       }  
       delete reply;  
    }  
    delete req;  
    return ;  
 }  
   
 void MessageQueueService::enumerate_service(Uint32 queue, message_module *result)  
 {  
    if(result == 0)  
       throw NullPointer();  
   
    EnumerateService *req  
       = new EnumerateService(get_next_xid(),  
                              0,  
                              _queueId,  
                              true,  
                              queue);  
   
    AsyncMessage *reply = SendWait(req);  
   
    if (reply)  
    {  
       Boolean found = false;  
   
       if( reply->getMask() & message_mask::ha_async)  
       {  
          if(reply->getMask() & message_mask::ha_reply)  
          {  
             if(reply->getType() == async_messages::ENUMERATE_SERVICE_RESULT)  
             {  
                if( (static_cast<EnumerateServiceResponse *>(reply))->result == async_results::OK )  
                {  
                   if( found == false)  
                   {  
                      found = true;  
   
                      result->put_name( (static_cast<EnumerateServiceResponse *>(reply))->name);  
                      result->put_capabilities((static_cast<EnumerateServiceResponse *>(reply))->capabilities);  
                      result->put_mask((static_cast<EnumerateServiceResponse *>(reply))->mask);  
                      result->put_queue((static_cast<EnumerateServiceResponse *>(reply))->qid);  
                   }  
                }  
             }  
          }  
       }  
       delete reply;  
    }  
    delete req;  
   
    return;  
 }  
   
 Uint32 MessageQueueService::get_next_xid(void)  
 {  
    _xid++;  
    return _xid.value();  
 } }
  
 PEGASUS_NAMESPACE_END PEGASUS_NAMESPACE_END

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  Added in v.1.151
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