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Diff for /pegasus/src/Pegasus/Common/MessageQueueService.cpp between version 1.12 and 1.34

version 1.12, 2002/02/05 04:30:33 version 1.34, 2002/03/12 22:59:35
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 //%///////////////////////////////////////////////////////////////////////////// //%/////////////////////////////////////////////////////////////////////////////
  
 #include "MessageQueueService.h" #include "MessageQueueService.h"
   #include <Pegasus/Common/Tracer.h>
 PEGASUS_USING_STD;  
  
 PEGASUS_NAMESPACE_BEGIN PEGASUS_NAMESPACE_BEGIN
  
   
   cimom *MessageQueueService::_meta_dispatcher = 0;
   AtomicInt MessageQueueService::_service_count = 0;
   AtomicInt MessageQueueService::_xid(1);
   Mutex MessageQueueService::_meta_dispatcher_mutex  = Mutex();
   
   
 MessageQueueService::MessageQueueService(const char *name, MessageQueueService::MessageQueueService(const char *name,
                                          Uint32 queueID,                                          Uint32 queueID,
                                          Uint32 capabilities,                                          Uint32 capabilities,
                                          Uint32 mask)                                          Uint32 mask)
    : Base(name, false,  queueID),     : Base(name, true,  queueID),
      _capabilities(capabilities),  
      _mask(mask),      _mask(mask),
      _die(0),      _die(0),
      _pending(true),      _pending(true),
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      _incoming_queue_shutdown(0),      _incoming_queue_shutdown(0),
      _req_thread(_req_proc, this, false)      _req_thread(_req_proc, this, false)
 { {
      _capabilities = (capabilities | module_capabilities::async);
   
    _default_op_timeout.tv_sec = 30;    _default_op_timeout.tv_sec = 30;
    _default_op_timeout.tv_usec = 100;    _default_op_timeout.tv_usec = 100;
    _meta_dispatcher = static_cast<cimom *>(Base::lookup(CIMOM_Q_ID));  
      _meta_dispatcher_mutex.lock(pegasus_thread_self());
   
    if(_meta_dispatcher == 0 )    if(_meta_dispatcher == 0 )
      {
         PEGASUS_ASSERT( _service_count.value() == 0 );
         _meta_dispatcher = new cimom();
         if (_meta_dispatcher == NULL )
         {
            _meta_dispatcher_mutex.unlock();
   
       throw NullPointer();       throw NullPointer();
    _req_thread.run();        }
   
      }
      _service_count++;
   
   
      if( false == register_service(name, _capabilities, _mask) )
      {
         _meta_dispatcher_mutex.unlock();
         throw BindFailed("MessageQueueService Base Unable to register with  Meta Dispatcher");
      }
   
      _meta_dispatcher_mutex.unlock();
  
      _req_thread.run();
 } }
  
  
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 { {
    _die = 1;    _die = 1;
    if (_incoming_queue_shutdown.value() == 0 )    if (_incoming_queue_shutdown.value() == 0 )
        _incoming.shutdown_queue();     {
         _shutdown_incoming_queue();
    _req_thread.join();    _req_thread.join();
      }
  
      _meta_dispatcher_mutex.lock(pegasus_thread_self());
      _service_count--;
      if (_service_count.value() == 0 )
      {
         _meta_dispatcher->_shutdown_routed_queue();
         delete _meta_dispatcher;
 } }
      _meta_dispatcher_mutex.unlock();
   
   }
   
  
 AtomicInt MessageQueueService::_xid(1);  
  
 void MessageQueueService::_shutdown_incoming_queue(void) void MessageQueueService::_shutdown_incoming_queue(void)
 { {
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                                     0);                                     0);
  
    msg->op = get_op();    msg->op = get_op();
    msg->op->_request.insert_first(msg);     msg->op->_state &= ~ASYNC_OPSTATE_COMPLETE;
      msg->op->_flags &= ~ASYNC_OPFLAGS_CALLBACK;
  
      msg->op->_op_dest = this;
      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->_client_sem.wait();
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    msg->op->unlock();    msg->op->unlock();
    delete reply;    delete reply;
  
   
    msg->op->_request.remove(msg);    msg->op->_request.remove(msg);
    msg->op->_state |= ASYNC_OPSTATE_RELEASED;    msg->op->_state |= ASYNC_OPSTATE_RELEASED;
    return_op(msg->op);    return_op(msg->op);
  
    msg->op = 0;    msg->op = 0;
    delete msg;    delete msg;
      _req_thread.join();
   
 } }
  
  
   
   void MessageQueueService::enqueue(Message *msg) throw(IPCException)
   {
      PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, "MessageQueueService::enqueue()");
   
      Base::enqueue(msg);
   
      PEG_METHOD_EXIT();
   }
   
   
   
 PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_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);
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       }       }
       if( operation )       if( operation )
       {       {
            operation->_thread_ptr = myself;
          service->_handle_incoming_operation(operation, myself, service);           operation->_service_ptr = service;
            service->_handle_incoming_operation(operation);
       }       }
   
    }    }
  
    myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );    myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );
    return(0);    return(0);
 } }
  
   void MessageQueueService::_sendwait_callback(AsyncOpNode *op,
                                                MessageQueue *q,
                                                void *parm)
   {
      op->_client_sem.signal();
   }
   
   
   // 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)
   {
      // 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,  //                                                   Thread *thread,
                                                      MessageQueue *queue)  //                                                   MessageQueue *queue)
 { {
    if ( operation != 0 )    if ( operation != 0 )
    {    {
   
   // ATTN: optimization
   // << Tue Feb 19 14:10:38 2002 mdd >>
       operation->lock();       operation->lock();
   
       Message *rq = operation->_request.next(0);       Message *rq = operation->_request.next(0);
   
   // 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() & message_mask::ha_async)))
         {
            rq = operation->_request.remove_first() ;
       operation->unlock();       operation->unlock();
            // delete the op node
            delete operation;
  
            handleEnqueue(rq);
            return;
         }
   
         if ( operation->_flags & ASYNC_OPFLAGS_CALLBACK &&
              (operation->_state & ASYNC_OPSTATE_COMPLETE))
         {
            operation->unlock();
            _handle_async_callback(operation);
         }
         else
         {
       PEGASUS_ASSERT(rq != 0 );       PEGASUS_ASSERT(rq != 0 );
       PEGASUS_ASSERT(rq->getMask() & message_mask::ha_async );           // ATTN: optimization
       PEGASUS_ASSERT(rq->getMask() & message_mask::ha_request);           // << Wed Mar  6 15:00:39 2002 mdd >>
       static_cast<AsyncMessage *>(rq)->_myself = thread;           // put thread and queue into the asyncopnode structure.
       static_cast<AsyncMessage *>(rq)->_service = queue;           //  (static_cast<AsyncMessage *>(rq))->_myself = operation->_thread_ptr;
            //   (static_cast<AsyncMessage *>(rq))->_service = operation->_service_ptr;
            // done << Tue Mar 12 14:49:07 2002 mdd >>
            operation->unlock();
       _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)
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    }    }
 } }
  
 void MessageQueueService::_make_response(AsyncRequest *req, Uint32 code)  
   Boolean MessageQueueService::_enqueueResponse(
      Message* request,
      Message* response)
   
 { {
    AsyncReply *reply =  
       new AsyncReply(async_messages::REPLY,     if( request->getMask() & message_mask::ha_async)
                      req->getKey(),     {
                      req->getRouting(),        if (response->getMask() & message_mask::ha_async )
                      0,        {
                      req->op,           _completeAsyncResponse(static_cast<AsyncRequest *>(request),
                      code,                                  static_cast<AsyncReply *>(response),
                      req->resp,                                  ASYNC_OPSTATE_COMPLETE, 0 );
                      false);           return true;
    _completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 );        }
      }
   
      if(request->_async != 0 )
      {
         Uint32 mask = request->_async->getMask();
         PEGASUS_ASSERT(mask & (message_mask::ha_async | message_mask::ha_request ));
   
         AsyncRequest *async = static_cast<AsyncRequest *>(request->_async);
         AsyncOpNode *op = async->op;
         request->_async = 0;
         // this request is probably going to be deleted !!
         // remove it from the op node
         op->_request.remove(request);
   
         AsyncLegacyOperationResult *async_result =
            new AsyncLegacyOperationResult(
               async->getKey(),
               async->getRouting(),
               op,
               response);
         _completeAsyncResponse(async,
                                async_result,
                                ASYNC_OPSTATE_COMPLETE,
                                0);
         return true;
      }
   
      // ensure that the destination queue is in response->dest
      return SendForget(response);
   
   }
   
   void MessageQueueService::_make_response(Message *req, Uint32 code)
   {
      cimom::_make_response(req, code);
 } }
  
  
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                                                 Uint32 state,                                                 Uint32 state,
                                                 Uint32 flag)                                                 Uint32 flag)
 { {
    PEGASUS_ASSERT(request != 0  && reply != 0 );     cimom::_completeAsyncResponse(request, reply, state, flag);
   }
    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();  
  
  
   void MessageQueueService::_complete_op_node(AsyncOpNode *op,
                                               Uint32 state,
                                               Uint32 flag,
                                               Uint32 code)
   {
      cimom::_complete_op_node(op, state, flag, code);
 } }
  
  
   
 Boolean MessageQueueService::accept_async(AsyncOpNode *op) Boolean MessageQueueService::accept_async(AsyncOpNode *op)
 { {
    if (_incoming_queue_shutdown.value() > 0 )    if (_incoming_queue_shutdown.value() > 0 )
       return false;       return false;
  
   // ATTN optimization remove the message checking altogether in the base
   // << Mon Feb 18 14:02:20 2002 mdd >>
    op->lock();    op->lock();
    Message *rq = op->_request.next(0);    Message *rq = op->_request.next(0);
      Message *rp = op->_response.next(0);
    op->unlock();    op->unlock();
  
    if( true == messageOK(rq) &&  _die.value() == 0  )     if(  (rq != 0 && (true == messageOK(rq))) || (rp != 0 && ( true == messageOK(rp) )) &&
           _die.value() == 0  )
    {    {
       _incoming.insert_last_wait(op);       _incoming.insert_last_wait(op);
       return true;       return true;
    }    }
   //    else
   //    {
   //       if(  (rq != 0 && (true == MessageQueueService::messageOK(rq))) ||
   //         (rp != 0 && ( true == MessageQueueService::messageOK(rp) )) &&
   //         _die.value() == 0)
   //       {
   //       MessageQueueService::_incoming.insert_last_wait(op);
   //       return true;
   //       }
   //    }
   
    return false;    return false;
 } }
  
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 { {
    if (_incoming_queue_shutdown.value() > 0 )    if (_incoming_queue_shutdown.value() > 0 )
       return false;       return false;
   
    if ( msg != 0 )  
    {  
       Uint32 mask = msg->getMask();  
       if ( mask & message_mask::ha_async)  
          if ( mask & message_mask::ha_request)  
             return true;             return true;
    }    }
    return false;  
 }  
  
  
 void MessageQueueService::handleEnqueue(void)  // made pure virtual
 {  // << Wed Mar  6 15:11:31 2002 mdd >>
    Message *msg = dequeue();  // void MessageQueueService::handleEnqueue(Message *msg)
    if( msg )  // {
    {  //    if ( msg )
       delete msg;  //       delete msg;
    }  // }
 }  
   // made pure virtual
   // << Wed Mar  6 15:11:56 2002 mdd >>
   // void MessageQueueService::handleEnqueue(void)
   // {
   //     Message *msg = dequeue();
   //     handleEnqueue(msg);
   // }
  
 void MessageQueueService::handle_heartbeat_request(AsyncRequest *req) void MessageQueueService::handle_heartbeat_request(AsyncRequest *req)
 { {
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       case AsyncIoctl::IO_CLOSE:       case AsyncIoctl::IO_CLOSE:
       {       {
          // save my bearings          // save my bearings
          Thread *myself = req->_myself;           Thread *myself = req->op->_thread_ptr;
          MessageQueueService *service = static_cast<MessageQueueService *>(req->_service);           MessageQueueService *service = static_cast<MessageQueueService *>(req->op->_service_ptr);
  
          // respond to this message.          // respond to this message.
          _make_response(req, async_results::OK);          _make_response(req, async_results::OK);
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             }             }
             if( operation )             if( operation )
             {             {
                service->_handle_incoming_operation(operation, myself, service);                 operation->_thread_ptr = myself;
                  operation->_service_ptr = service;
                  service->_handle_incoming_operation(operation);
             }             }
             else             else
                break;                break;
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 void MessageQueueService::handle_CimServiceStart(CimServiceStart *req) void MessageQueueService::handle_CimServiceStart(CimServiceStart *req)
 { {
    // clear the stoped bit and update    // clear the stoped bit and update
    _capabilities &= ~(module_capabilities::stopped);     _capabilities &= (~(module_capabilities::stopped));
    _make_response(req, async_results::OK);    _make_response(req, async_results::OK);
    // now tell the meta dispatcher we are stopped    // now tell the meta dispatcher we are stopped
    update_service(_capabilities, _mask);    update_service(_capabilities, _mask);
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 void MessageQueueService::handle_CimServicePause(CimServicePause *req) void MessageQueueService::handle_CimServicePause(CimServicePause *req)
 { {
    // set the paused bit and update    // set the paused bit and update
    _capabilities |= module_capabilities::stopped;     _capabilities |= module_capabilities::paused;
    update_service(_capabilities, _mask);    update_service(_capabilities, _mask);
    _make_response(req, async_results::CIM_PAUSED);    _make_response(req, async_results::CIM_PAUSED);
    // now tell the meta dispatcher we are stopped    // now tell the meta dispatcher we are stopped
   
    cout << " service paused " << endl;  
   
 } }
 void MessageQueueService::handle_CimServiceResume(CimServiceResume *req) void MessageQueueService::handle_CimServiceResume(CimServiceResume *req)
 { {
    // clear the paused  bit and update    // clear the paused  bit and update
    _capabilities &= ~(module_capabilities::paused);     _capabilities &= (~(module_capabilities::paused));
    update_service(_capabilities, _mask);    update_service(_capabilities, _mask);
    _make_response(req, async_results::OK);    _make_response(req, async_results::OK);
    // now tell the meta dispatcher we are stopped    // now tell the meta dispatcher we are stopped
   
   
    cout << " service resumed " << endl;  
 } }
  
 void MessageQueueService::handle_AsyncOperationStart(AsyncOperationStart *req) void MessageQueueService::handle_AsyncOperationStart(AsyncOperationStart *req)
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 void MessageQueueService::handle_AsyncOperationResult(AsyncOperationResult *req) void MessageQueueService::handle_AsyncOperationResult(AsyncOperationResult *req)
 { {
      ;
   }
   
   
   void MessageQueueService::handle_AsyncLegacyOperationStart(AsyncLegacyOperationStart *req)
   {
      // remove the legacy message from the request and enqueue it to its destination
      Uint32 result = async_results::CIM_NAK;
   
      Message *legacy = req->_act;
      if ( legacy != 0 )
      {
         MessageQueue* queue = MessageQueue::lookup(req->_legacy_destination);
         if( queue != 0 )
         {
            if(queue->isAsync() == true )
            {
               (static_cast<MessageQueueService *>(queue))->handleEnqueue(legacy);
            }
            else
            {
               // Enqueue the response:
               queue->enqueue(req->get_action());
            }
   
            result = async_results::OK;
         }
      }
      _make_response(req, result);
   }
  
   void MessageQueueService::handle_AsyncLegacyOperationResult(AsyncLegacyOperationResult *rep)
   {
      ;
 } }
  
 AsyncOpNode *MessageQueueService::get_op(void) AsyncOpNode *MessageQueueService::get_op(void)
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Line 592 
 } }
  
  
   Boolean MessageQueueService::ForwardOp(AsyncOpNode *op,
                                          Uint32 destination)
   {
      PEGASUS_ASSERT(op != 0 );
      op->lock();
      op->_op_dest = MessageQueue::lookup(destination);
      op->_flags |= (ASYNC_OPFLAGS_FIRE_AND_FORGET | ASYNC_OPFLAGS_FORWARD);
      op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK);
      op->unlock();
      if ( op->_op_dest == 0 )
         return false;
   
      return  _meta_dispatcher->route_async(op);
   }
   
   
   Boolean MessageQueueService::SendAsync(AsyncOpNode *op,
                                          Uint32 destination,
                                          void (*callback)(AsyncOpNode *,
                                                           MessageQueue *,
                                                           void *),
                                          MessageQueue *callback_response_q,
                                          void *callback_ptr)
   {
      PEGASUS_ASSERT(op != 0 && callback != 0 );
   
      // get the queue handle for the destination
   
      op->lock();
      op->_op_dest = MessageQueue::lookup(destination); // destination of this message
      op->_flags |= ASYNC_OPFLAGS_CALLBACK;
      op->_flags &= ~(ASYNC_OPFLAGS_FIRE_AND_FORGET);
      op->_state &= ~ASYNC_OPSTATE_COMPLETE;
      // initialize the callback data
      op->_async_callback = callback;   // callback function to be executed by recpt. of response
      op->_callback_node = op;          // the op node
      op->_callback_response_q = callback_response_q;  // the queue that will receive the response
      op->_callback_ptr = callback_ptr;   // user data for callback
      op->_callback_request_q = this;     // I am the originator of this request
   
      op->unlock();
      if(op->_op_dest == 0)
         return false;
   
      return  _meta_dispatcher->route_async(op);
   }
   
   
   Boolean MessageQueueService::SendForget(Message *msg)
   {
   
   
      AsyncOpNode *op = 0;
      Uint32 mask = msg->getMask();
   
      if (mask & message_mask::ha_async)
      {
         op = (static_cast<AsyncMessage *>(msg))->op ;
      }
   
      if( op == 0 )
      {
         op = get_op();
         op->_request.insert_first(msg);
         if (mask & message_mask::ha_async)
            (static_cast<AsyncMessage *>(msg))->op = op;
      }
      op->lock();
      op->_op_dest = MessageQueue::lookup(msg->dest);
      op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET;
      op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SIMPLE_STATUS);
      op->_state &= ~ASYNC_OPSTATE_COMPLETE;
      op->unlock();
      if ( op->_op_dest == 0 )
         return false;
   
      // 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 426 
Line 687 
       destroy_op = true;       destroy_op = true;
    }    }
  
    request->block = true;     request->block = false;
    request->op->_state &= ~ASYNC_OPSTATE_COMPLETE;  
    request->op->put_response(0);  
   
    // first link it on our pending list  
    // _pending.insert_last_wait(request->op);  
  
    // now see if the meta dispatcher will take it     SendAsync(request->op,
                request->dest,
                _sendwait_callback,
                this,
                (void *)0);
  
    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();    request->op->lock();
    AsyncReply * rpl = static_cast<AsyncReply *>(request->op->_response.remove_first());    AsyncReply * rpl = static_cast<AsyncReply *>(request->op->_response.remove_first());
    rpl->op = 0;    rpl->op = 0;
Line 453 
Line 707 
       request->op->_request.remove(request);       request->op->_request.remove(request);
       request->op->_state |= ASYNC_OPSTATE_RELEASED;       request->op->_state |= ASYNC_OPSTATE_RELEASED;
       request->op->unlock();       request->op->unlock();
   
       return_op(request->op);       return_op(request->op);
       request->op = 0;       request->op = 0;
    }    }
Line 483 
Line 736 
       {       {
          if(reply->getMask() & message_mask::ha_reply)          if(reply->getMask() & message_mask::ha_reply)
          {          {
             if(reply->result == async_results::OK)              if(reply->result == async_results::OK ||
                  reply->result == async_results::MODULE_ALREADY_REGISTERED )
                registered = true;                registered = true;
          }          }
       }       }

Legend:
Removed from v.1.12  
changed lines
  Added in v.1.34
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