TAO_Concurrency_Strategy< SVC_HANDLER > Class Template Reference

Activates the Svc_Handler, and then if specified by the TAO_Server_Strategy_Factory, it activates the Svc_Handler to run in its own thread. More...

#include <Acceptor_Impl.h>

Inheritance diagram for TAO_Concurrency_Strategy< SVC_HANDLER >:

Collaboration diagram for TAO_Concurrency_Strategy< SVC_HANDLER >:

List of all members.

Public Member Functions
	TAO_Concurrency_Strategy (TAO_ORB_Core *orb_core)
	Constructor.
int	activate_svc_handler (SVC_HANDLER *svc_handler, void *arg)
Protected Attributes
TAO_ORB_Core *	orb_core_
	Pointer to the ORB Core.

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Detailed Description

template<class SVC_HANDLER>
class TAO_Concurrency_Strategy< SVC_HANDLER >

Activates the Svc_Handler, and then if specified by the TAO_Server_Strategy_Factory, it activates the Svc_Handler to run in its own thread.

Definition at line 62 of file Acceptor_Impl.h.

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Constructor & Destructor Documentation

template<class SVC_HANDLER >

TAO_Concurrency_Strategy< SVC_HANDLER >::TAO_Concurrency_Strategy

(

TAO_ORB_Core *

orb_core

)

Constructor.

Definition at line 61 of file Acceptor_Impl.cpp.

  : orb_core_ (orb_core)
{
}

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Member Function Documentation

template<class SVC_HANDLER >

int TAO_Concurrency_Strategy< SVC_HANDLER >::activate_svc_handler	(	SVC_HANDLER *	svc_handler,
		void *	arg
	)			[virtual]

Activates the Svc_Handler, and then if specified by the TAO_Server_Strategy_Factory, it activates the Svc_Handler to run in its own thread.

Reimplemented from ACE_Concurrency_Strategy< SVC_HANDLER >.

Definition at line 67 of file Acceptor_Impl.cpp.

{
  sh->transport ()->opened_as (TAO::TAO_SERVER_ROLE);

  // Indicate that this transport was opened in the server role
  if (TAO_debug_level > 6)
    ACE_DEBUG ((LM_DEBUG,
                "TAO (%P|%t) - Concurrency_Strategy::activate_svc_handler, "
                "opened as TAO_SERVER_ROLE\n"));

  // Here the service handler has been created and the new connection
  // has been accepted.  #REFCOUNT# is one at this point.

  if (this->ACE_Concurrency_Strategy<SVC_HANDLER>::activate_svc_handler (sh,
                                                                         arg) == -1)
    {
      // Activation fails, decrease reference.
      sh->transport ()->remove_reference ();

      // #REFCOUNT# is zero at this point.

      return -1;
    }

  // The service handler has been activated. Now cache the handler.
  if (sh->add_transport_to_cache () == -1)
    {
      // Adding to the cache fails, close the handler.
      sh->close ();

      // close() doesn't really decrease reference.
      sh->transport ()->remove_reference ();

      // #REFCOUNT# is zero at this point.

      if (TAO_debug_level > 0)
        {
          ACE_ERROR ((LM_ERROR,
                      ACE_TEXT ("TAO (%P|%t) - Concurrency_Strategy::activate_svc_handler, ")
                      ACE_TEXT ("could not add the handler to cache\n")));
        }

      return -1;
    }

  // Registration with cache is successful, #REFCOUNT# is two at this
  // point.

  TAO_Server_Strategy_Factory *f =
    this->orb_core_->server_factory ();

  int result = 0;

  // Do we need to create threads?
  if (f->activate_server_connections ())
    {
      // Thread-per-connection concurrency model
      TAO_Thread_Per_Connection_Handler *tpch = 0;

      ACE_NEW_RETURN (tpch,
                      TAO_Thread_Per_Connection_Handler (sh,
                                                         this->orb_core_),
                      -1);

      result =
        tpch->activate (f->server_connection_thread_flags (),
                        f->server_connection_thread_count ());
    }
  else
    {
      // Otherwise, it is the reactive concurrency model. We may want
      // to register ourselves with the reactor. Call the register
      // handler on the transport.
      result = sh->transport ()->register_handler ();
    }

  if (result != -1)
    {
      // Activation/registration successful: the handler has been
      // registered with either the Reactor or the
      // Thread-per-Connection_Handler, and the Transport Cache.
      // #REFCOUNT# is three at this point.

      // We can let go of our reference.
      sh->transport ()->remove_reference ();
    }
  else
    {
      // Activation/registration failure. #REFCOUNT# is two at this
      // point.

      // Remove from cache.
      sh->transport ()->purge_entry ();

      // #REFCOUNT# is one at this point.

      // Close handler.
      sh->close ();

      // close() doesn't really decrease reference.
      sh->transport ()->remove_reference ();

      // #REFCOUNT# is zero at this point.

      if (TAO_debug_level > 0)
         {
           const ACE_TCHAR *error = 0;
           if (f->activate_server_connections ())
             error = ACE_TEXT("could not activate new connection");
           else
             error = ACE_TEXT("could not register new connection in the reactor");

           ACE_ERROR ((LM_ERROR,
                       ACE_TEXT("TAO (%P|%t) - Concurrency_Strategy::activate_svc_handler, ")
                       ACE_TEXT("%s\n"), error));
         }

      return -1;
    }

  // Success: #REFCOUNT# is two at this point.
  return result;
}

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Member Data Documentation

template<class SVC_HANDLER >

TAO_ORB_Core* TAO_Concurrency_Strategy< SVC_HANDLER >::orb_core_ [protected]

Pointer to the ORB Core.

Definition at line 78 of file Acceptor_Impl.h.

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The documentation for this class was generated from the following files:

• Acceptor_Impl.h
• Acceptor_Impl.cpp