(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 1.34 and 1.70

version 1.34, 2002/03/12 22:59:35 version 1.70, 2003/04/09 16:28:55
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 //%////-*-c++-*-//////////////////////////////////////////////////////////////// //%////-*-c++-*-////////////////////////////////////////////////////////////////
 // //
 // Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM  // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM,
   // The Open Group, Tivoli Systems
 // //
 // 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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 cimom *MessageQueueService::_meta_dispatcher = 0; cimom *MessageQueueService::_meta_dispatcher = 0;
 AtomicInt MessageQueueService::_service_count = 0; AtomicInt MessageQueueService::_service_count = 0;
 AtomicInt MessageQueueService::_xid(1); AtomicInt MessageQueueService::_xid(1);
 Mutex MessageQueueService::_meta_dispatcher_mutex  = Mutex();  Mutex MessageQueueService::_meta_dispatcher_mutex;
   
   static struct timeval create_time = {0, 1};
   static struct timeval destroy_time = {300, 0};
   static struct timeval deadlock_time = {0, 0};
   
   ThreadPool *MessageQueueService::_thread_pool = 0;
   
   DQueue<MessageQueueService> MessageQueueService::_polling_list(true);
   
   Thread* MessageQueueService::_polling_thread = 0;
   
   ThreadPool *MessageQueueService::get_thread_pool(void)
   {
      return _thread_pool;
   }
   
   void unload_idle_providers(void);
   
   PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL  MessageQueueService::kill_idle_threads(void *parm)
   {
   
      static struct timeval now, last = {0,0};
      gettimeofday(&now, NULL);
      int dead_threads = 0;
   
      if( now.tv_sec - last.tv_sec > 120 )
      {
         gettimeofday(&last, NULL);
         try
         {
            dead_threads =  MessageQueueService::_thread_pool->kill_dead_threads();
         }
         catch(...)
         {
   
         }
      }
      exit_thread((PEGASUS_THREAD_RETURN)dead_threads);
      return (PEGASUS_THREAD_RETURN)dead_threads;
   }
   
   
   void MessageQueueService::force_shutdown(void)
   {
      PEGASUS_STD(cout) << "Forcing shutdown of CIMOM Message Router" << PEGASUS_STD(endl);
      MessageQueueService::_stop_polling = 1;
      MessageQueueService *svc;
   
      _polling_list.lock();
      svc = _polling_list.next(0);
      while(svc != 0)
      {
         PEGASUS_STD(cout) << "Stopping " << svc->getQueueName() << PEGASUS_STD(endl);
         _polling_sem.signal();
         svc->_shutdown_incoming_queue();
         _polling_sem.signal();
         svc = _polling_list.next(svc);
      }
      _polling_list.unlock();
   }
   
   
   PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::polling_routine(void *parm)
   {
      Thread *myself = reinterpret_cast<Thread *>(parm);
      DQueue<MessageQueueService> *list = reinterpret_cast<DQueue<MessageQueueService> *>(myself->get_parm());
      while ( _stop_polling.value()  == 0 )
      {
         _polling_sem.wait();
         if(_stop_polling.value() != 0 )
         {
            break;
         }
   
         list->lock();
         MessageQueueService *service = list->next(0);
         while(service != NULL)
         {
            if(service->_incoming.count() > 0 )
            {
               _thread_pool->allocate_and_awaken(service, _req_proc);
            }
            service = list->next(service);
         }
         list->unlock();
         if(_check_idle_flag.value() != 0 )
         {
            _check_idle_flag = 0;
            Thread th(kill_idle_threads, 0, true);
            th.run();
         }
      }
      myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );
      return(0);
   }
   
   
   Semaphore MessageQueueService::_polling_sem(0);
   AtomicInt MessageQueueService::_stop_polling(0);
   AtomicInt MessageQueueService::_check_idle_flag(0);
  
  
 MessageQueueService::MessageQueueService(const char *name, MessageQueueService::MessageQueueService(const char *name,
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      _mask(mask),      _mask(mask),
      _die(0),      _die(0),
      _pending(true),       _incoming(true, 0),
      _incoming(true, 1000),       _callback(true),
      _incoming_queue_shutdown(0),      _incoming_queue_shutdown(0),
      _req_thread(_req_proc, this, false)       _callback_ready(0),
        _req_thread(_req_proc, this, false),
        _callback_thread(_callback_proc, this, false)
   
 { {
   
    _capabilities = (capabilities | module_capabilities::async);    _capabilities = (capabilities | module_capabilities::async);
  
    _default_op_timeout.tv_sec = 30;    _default_op_timeout.tv_sec = 30;
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       if (_meta_dispatcher == NULL )       if (_meta_dispatcher == NULL )
       {       {
          _meta_dispatcher_mutex.unlock();          _meta_dispatcher_mutex.unlock();
   
          throw NullPointer();          throw NullPointer();
       }       }
         _thread_pool = new ThreadPool(0, "MessageQueueService", 0, 0,
                                       create_time, destroy_time, deadlock_time);
  
         _polling_thread = new Thread(polling_routine,
                                      reinterpret_cast<void *>(&_polling_list),
                                      false);
         _polling_thread->run();
    }    }
    _service_count++;    _service_count++;
  
   
    if( false == register_service(name, _capabilities, _mask) )    if( false == register_service(name, _capabilities, _mask) )
    {    {
       _meta_dispatcher_mutex.unlock();       _meta_dispatcher_mutex.unlock();
       throw BindFailed("MessageQueueService Base Unable to register with  Meta Dispatcher");        throw BindFailedException("MessageQueueService Base Unable to register with  Meta Dispatcher");
    }    }
  
      _polling_list.insert_last(this);
   
    _meta_dispatcher_mutex.unlock();    _meta_dispatcher_mutex.unlock();
   //   _callback_thread.run();
  
    _req_thread.run();  //   _req_thread.run();
 } }
  
  
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    if (_incoming_queue_shutdown.value() == 0 )    if (_incoming_queue_shutdown.value() == 0 )
    {    {
       _shutdown_incoming_queue();       _shutdown_incoming_queue();
        _req_thread.join();  
    }    }
      _callback_ready.signal();
   //   _callback_thread.join();
  
    _meta_dispatcher_mutex.lock(pegasus_thread_self());    _meta_dispatcher_mutex.lock(pegasus_thread_self());
    _service_count--;    _service_count--;
    if (_service_count.value() == 0 )    if (_service_count.value() == 0 )
    {    {
         _stop_polling++;
         _polling_sem.signal();
         _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;
         delete _thread_pool;
         _thread_pool = 0;
    }    }
    _meta_dispatcher_mutex.unlock();    _meta_dispatcher_mutex.unlock();
      _polling_list.remove(this);
 } }
  
   
   
 void MessageQueueService::_shutdown_incoming_queue(void) void MessageQueueService::_shutdown_incoming_queue(void)
 { {
  
    if (_incoming_queue_shutdown.value() > 0 )    if (_incoming_queue_shutdown.value() > 0 )
       return ;       return ;
   
    AsyncIoctl *msg = new AsyncIoctl(get_next_xid(),    AsyncIoctl *msg = new AsyncIoctl(get_next_xid(),
                                     0,                                     0,
                                     _queueId,                                     _queueId,
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                                     0);                                     0);
  
    msg->op = get_op();    msg->op = get_op();
      msg->op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET;
      msg->op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SAFE_CALLBACK
                      | ASYNC_OPFLAGS_SIMPLE_STATUS);
    msg->op->_state &= ~ASYNC_OPSTATE_COMPLETE;    msg->op->_state &= ~ASYNC_OPSTATE_COMPLETE;
    msg->op->_flags &= ~ASYNC_OPFLAGS_CALLBACK;  
  
    msg->op->_op_dest = this;    msg->op->_op_dest = this;
    msg->op->_request.insert_first(msg);    msg->op->_request.insert_first(msg);
  
    _incoming.insert_last_wait(msg->op);    _incoming.insert_last_wait(msg->op);
    msg->op->_client_sem.wait();  
   
    msg->op->lock();  
    AsyncReply * reply = static_cast<AsyncReply *>(msg->op->_response.remove_first());  
    reply->op = 0;  
    msg->op->unlock();  
    delete reply;  
  
   //   _req_thread.join();
    msg->op->_request.remove(msg);  
    msg->op->_state |= ASYNC_OPSTATE_RELEASED;  
    return_op(msg->op);  
   
    msg->op = 0;  
    delete msg;  
    _req_thread.join();  
  
 } }
  
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 } }
  
  
   PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_callback_proc(void *parm)
 PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(void * parm)  
 { {
    Thread *myself = reinterpret_cast<Thread *>(parm);    Thread *myself = reinterpret_cast<Thread *>(parm);
    MessageQueueService *service = reinterpret_cast<MessageQueueService *>(myself->get_parm());    MessageQueueService *service = reinterpret_cast<MessageQueueService *>(myself->get_parm());
      AsyncOpNode *operation = 0;
  
      while ( service->_die.value() == 0 )
      {
         service->_callback_ready.wait();
   
         service->_callback.lock();
         operation = service->_callback.next(0);
         while( operation != NULL)
         {
            if( ASYNC_OPSTATE_COMPLETE & operation->read_state())
            {
               operation = service->_callback.remove_no_lock(operation);
               PEGASUS_ASSERT(operation != NULL);
               operation->_thread_ptr = myself;
               operation->_service_ptr = service;
               service->_handle_async_callback(operation);
               break;
            }
            operation = service->_callback.next(operation);
         }
         service->_callback.unlock();
      }
      myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );
      return(0);
   }
   
   
   PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(void * parm)
   {
      MessageQueueService *service = reinterpret_cast<MessageQueueService *>(parm);
    // 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 )     if ( service->_die.value() == 0 )
    {    {
       try       try
       {       {
          operation = service->_incoming.remove_first_wait();              operation = service->_incoming.remove_first();
       }       }
       catch(ListClosed & )       catch(ListClosed & )
       {       {
          break;              operation = 0;
   
               return(0);
       }       }
       if( operation )       if( operation )
       {       {
          operation->_thread_ptr = myself;  
          operation->_service_ptr = service;          operation->_service_ptr = service;
          service->_handle_incoming_operation(operation);          service->_handle_incoming_operation(operation);
       }       }
    }    }
  
    myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );  
    return(0);    return(0);
 } }
  
   Uint32 MessageQueueService::get_pending_callback_count(void)
   {
      return _callback.count();
   }
   
   
   
 void MessageQueueService::_sendwait_callback(AsyncOpNode *op, void MessageQueueService::_sendwait_callback(AsyncOpNode *op,
                                              MessageQueue *q,                                              MessageQueue *q,
                                              void *parm)                                              void *parm)
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 // including op, op->_callback_node, and op->_callback_ptr // including op, op->_callback_node, and op->_callback_ptr
 void MessageQueueService::_handle_async_callback(AsyncOpNode *op) void MessageQueueService::_handle_async_callback(AsyncOpNode *op)
 { {
      if( op->_flags & ASYNC_OPFLAGS_SAFE_CALLBACK )
      {
   
         Message *msg = op->get_request();
         if( msg && ( msg->getMask() & message_mask::ha_async))
         {
            if(msg->getType() == async_messages::ASYNC_LEGACY_OP_START )
            {
               AsyncLegacyOperationStart *wrapper =
                  static_cast<AsyncLegacyOperationStart *>(msg);
               msg = wrapper->get_action();
               delete wrapper;
            }
            else if (msg->getType() == async_messages::ASYNC_MODULE_OP_START)
            {
               AsyncModuleOperationStart *wrapper =
                  static_cast<AsyncModuleOperationStart *>(msg);
               msg = wrapper->get_action();
               delete wrapper;
            }
            else if (msg->getType() == async_messages::ASYNC_OP_START)
            {
               AsyncOperationStart *wrapper =
                  static_cast<AsyncOperationStart *>(msg);
               msg = wrapper->get_action();
               delete wrapper;
            }
            delete msg;
         }
   
         msg = op->get_response();
         if( msg && ( msg->getMask() & message_mask::ha_async))
         {
            if(msg->getType() == async_messages::ASYNC_LEGACY_OP_RESULT )
            {
               AsyncLegacyOperationResult *wrapper =
                  static_cast<AsyncLegacyOperationResult *>(msg);
               msg = wrapper->get_result();
               delete wrapper;
            }
            else if (msg->getType() == async_messages::ASYNC_MODULE_OP_RESULT)
            {
               AsyncModuleOperationResult *wrapper =
                  static_cast<AsyncModuleOperationResult *>(msg);
               msg = wrapper->get_result();
               delete wrapper;
            }
         }
         void (*callback)(Message *, void *, void *) = op->__async_callback;
         void *handle = op->_callback_handle;
         void *parm = op->_callback_parameter;
         op->release();
         return_op(op);
         callback(msg, handle, parm);
      }
      else if( op->_flags & ASYNC_OPFLAGS_CALLBACK )
      {
    // note that _callback_node may be different from op    // note that _callback_node may be different from op
    // op->_callback_response_q is a "this" pointer we can use for    // op->_callback_response_q is a "this" pointer we can use for
    // static callback methods    // static callback methods
    op->_async_callback(op->_callback_node, op->_callback_response_q, op->_callback_ptr);    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)
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          rq = operation->_request.remove_first() ;          rq = operation->_request.remove_first() ;
          operation->unlock();          operation->unlock();
          // delete the op node          // delete the op node
          delete operation;           operation->release();
            return_op( operation);
  
          handleEnqueue(rq);          handleEnqueue(rq);
          return;          return;
       }       }
  
       if ( operation->_flags & ASYNC_OPFLAGS_CALLBACK &&        if ( (operation->_flags & ASYNC_OPFLAGS_CALLBACK ||
               operation->_flags & ASYNC_OPFLAGS_SAFE_CALLBACK) &&
            (operation->_state & ASYNC_OPSTATE_COMPLETE))            (operation->_state & ASYNC_OPSTATE_COMPLETE))
       {       {
   
          operation->unlock();          operation->unlock();
          _handle_async_callback(operation);          _handle_async_callback(operation);
       }       }
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    Message* response)    Message* response)
  
 { {
      PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,
                       "MessageQueueService::_enqueueResponse");
  
    if( request->getMask() & message_mask::ha_async)    if( request->getMask() & message_mask::ha_async)
    {    {
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          _completeAsyncResponse(static_cast<AsyncRequest *>(request),          _completeAsyncResponse(static_cast<AsyncRequest *>(request),
                                 static_cast<AsyncReply *>(response),                                 static_cast<AsyncReply *>(response),
                                 ASYNC_OPSTATE_COMPLETE, 0 );                                 ASYNC_OPSTATE_COMPLETE, 0 );
            PEG_METHOD_EXIT();
          return true;          return true;
       }       }
    }    }
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       AsyncRequest *async = static_cast<AsyncRequest *>(request->_async);       AsyncRequest *async = static_cast<AsyncRequest *>(request->_async);
       AsyncOpNode *op = async->op;       AsyncOpNode *op = async->op;
       request->_async = 0;       request->_async = 0;
       // this request is probably going to be deleted !!        // the legacy request is going to be deleted by its handler
       // remove it from the op node       // remove it from the op node
       op->_request.remove(request);  
         static_cast<AsyncLegacyOperationStart *>(async)->get_action();
   
  
       AsyncLegacyOperationResult *async_result =       AsyncLegacyOperationResult *async_result =
          new AsyncLegacyOperationResult(          new AsyncLegacyOperationResult(
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                              async_result,                              async_result,
                              ASYNC_OPSTATE_COMPLETE,                              ASYNC_OPSTATE_COMPLETE,
                              0);                              0);
         PEG_METHOD_EXIT();
       return true;       return true;
    }    }
  
    // ensure that the destination queue is in response->dest    // ensure that the destination queue is in response->dest
      PEG_METHOD_EXIT();
    return SendForget(response);    return SendForget(response);
  
 } }
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                                                 Uint32 state,                                                 Uint32 state,
                                                 Uint32 flag)                                                 Uint32 flag)
 { {
      PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,
                       "MessageQueueService::_completeAsyncResponse");
   
    cimom::_completeAsyncResponse(request, reply, state, flag);    cimom::_completeAsyncResponse(request, reply, state, flag);
   
      PEG_METHOD_EXIT();
 } }
  
  
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         _die.value() == 0  )         _die.value() == 0  )
    {    {
       _incoming.insert_last_wait(op);       _incoming.insert_last_wait(op);
         _polling_sem.signal();
       return true;       return true;
    }    }
 //    else //    else
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       case AsyncIoctl::IO_CLOSE:       case AsyncIoctl::IO_CLOSE:
       {       {
          // save my bearings          // save my bearings
          Thread *myself = req->op->_thread_ptr;  //       Thread *myself = req->op->_thread_ptr;
          MessageQueueService *service = static_cast<MessageQueueService *>(req->op->_service_ptr);          MessageQueueService *service = static_cast<MessageQueueService *>(req->op->_service_ptr);
  
          // respond to this message.          // respond to this message.
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             }             }
             if( operation )             if( operation )
             {             {
                operation->_thread_ptr = myself;  //             operation->_thread_ptr = myself;
                operation->_service_ptr = service;                operation->_service_ptr = service;
                service->_handle_incoming_operation(operation);                service->_handle_incoming_operation(operation);
             }             }
Line 487 
Line 703 
  
          // shutdown the AsyncDQueue          // shutdown the AsyncDQueue
          service->_incoming.shutdown_queue();          service->_incoming.shutdown_queue();
            AsyncOpNode *op = req->op;
            op->_request.remove_first();
            op->release();
            return_op(op);
            delete req;
          // exit the thread !          // exit the thread !
          myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );  //       myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );
          return;          return;
       }       }
  
Line 640 
Line 861 
 } }
  
  
   Boolean MessageQueueService::SendAsync(Message *msg,
                                          Uint32 destination,
                                          void (*callback)(Message *response,
                                                           void *handle,
                                                           void *parameter),
                                          void *handle,
                                          void *parameter)
   {
      if(msg == NULL)
         return false;
      if(callback == NULL)
         return SendForget(msg);
      AsyncOpNode *op = get_op();
      msg->dest = destination;
      if( NULL == (op->_op_dest = MessageQueue::lookup(msg->dest)))
      {
         op->release();
         return_op(op);
         return false;
      }
      op->_flags |= ASYNC_OPFLAGS_SAFE_CALLBACK;
      op->_flags &= ~(ASYNC_OPFLAGS_FIRE_AND_FORGET);
      op->_state &= ~ASYNC_OPSTATE_COMPLETE;
      op->__async_callback = callback;
      op->_callback_node = op;
      op->_callback_handle = handle;
      op->_callback_parameter = parameter;
      op->_callback_response_q = this;
   
   
      if( ! (msg->getMask() & message_mask::ha_async) )
      {
         AsyncLegacyOperationStart *wrapper =
            new AsyncLegacyOperationStart(get_next_xid(),
                                          op,
                                          destination,
                                          msg,
                                          destination);
      }
      else
      {
         op->_request.insert_first(msg);
         (static_cast<AsyncMessage *>(msg))->op = op;
      }
   
      _callback.insert_last(op);
      return _meta_dispatcher->route_async(op);
   }
   
   
 Boolean MessageQueueService::SendForget(Message *msg) Boolean MessageQueueService::SendForget(Message *msg)
 { {
  
Line 659 
Line 930 
       if (mask & message_mask::ha_async)       if (mask & message_mask::ha_async)
          (static_cast<AsyncMessage *>(msg))->op = op;          (static_cast<AsyncMessage *>(msg))->op = op;
    }    }
    op->lock();  
    op->_op_dest = MessageQueue::lookup(msg->dest);    op->_op_dest = MessageQueue::lookup(msg->dest);
    op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET;    op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET;
    op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SIMPLE_STATUS);     op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SAFE_CALLBACK
                      | ASYNC_OPFLAGS_SIMPLE_STATUS);
    op->_state &= ~ASYNC_OPSTATE_COMPLETE;    op->_state &= ~ASYNC_OPSTATE_COMPLETE;
    op->unlock();  
    if ( op->_op_dest == 0 )    if ( op->_op_dest == 0 )
      {
         op->release();
         return_op(op);
       return false;       return false;
      }
  
    // now see if the meta dispatcher will take it    // now see if the meta dispatcher will take it
    return  _meta_dispatcher->route_async(op);    return  _meta_dispatcher->route_async(op);
Line 688 
Line 962 
    }    }
  
    request->block = false;    request->block = false;
      request->op->_flags |= ASYNC_OPFLAGS_PSEUDO_CALLBACK;
    SendAsync(request->op,    SendAsync(request->op,
              request->dest,              request->dest,
              _sendwait_callback,              _sendwait_callback,
Line 710 
Line 984 
       return_op(request->op);       return_op(request->op);
       request->op = 0;       request->op = 0;
    }    }
   
    return rpl;    return rpl;
 } }
  
Line 727 
Line 1000 
                                                     capabilities,                                                     capabilities,
                                                     mask,                                                     mask,
                                                     _queueId);                                                     _queueId);
      msg->dest = CIMOM_Q_ID;
   
    Boolean registered = false;    Boolean registered = false;
    AsyncReply *reply = static_cast<AsyncReply *>(SendWait( msg ));    AsyncReply *reply = static_cast<AsyncReply *>(SendWait( msg ));
  
Line 806 
Line 1081 
                            capabilities,                            capabilities,
                            mask);                            mask);
  
      req->dest = CIMOM_Q_ID;
   
    AsyncMessage *reply = SendWait(req);    AsyncMessage *reply = SendWait(req);
    if(reply)    if(reply)
    {    {

Legend:
Removed from v.1.34  
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  Added in v.1.70
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