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// $Id$
// -*- C++ -*-
//=============================================================================
/**
* @file CEC_Dispatching_Task.h
*
* $Id$
*
* @author Carlos O'Ryan (coryan@cs.wustl.edu)
*/
//=============================================================================
#ifndef TAO_CEC_DISPATCHING_TASK_H
#define TAO_CEC_DISPATCHING_TASK_H
#include /**/ "ace/pre.h"
#include "ace/Task.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Message_Block.h"
#include "ace/Lock_Adapter_T.h"
#include "tao/Basic_Types.h"
#include "tao/Objref_VarOut_T.h"
#include "orbsvcs/CosEvent/event_serv_export.h"
#include "CEC_ProxyPushSupplier.h"
#if defined (TAO_HAS_TYPED_EVENT_CHANNEL)
#include "CEC_TypedEvent.h"
#endif /* TAO_HAS_TYPED_EVENT_CHANNEL */
/**
* @class TAO_CEC_Dispatching_Task
*
* @brief Implement the dispatching queues for FIFO and Priority
* dispatching.
*
*/
class TAO_Event_Serv_Export TAO_CEC_Dispatching_Task : public ACE_Task<ACE_SYNCH>
{
public:
/// Constructor
TAO_CEC_Dispatching_Task (ACE_Thread_Manager* thr_manager = 0);
/// Process the events in the queue.
virtual int svc (void);
virtual void push (TAO_CEC_ProxyPushSupplier *proxy,
CORBA::Any& event
ACE_ENV_ARG_DECL);
#if defined (TAO_HAS_TYPED_EVENT_CHANNEL)
virtual void invoke (TAO_CEC_ProxyPushSupplier *proxy,
TAO_CEC_TypedEvent& typed_event
ACE_ENV_ARG_DECL);
#endif /* TAO_HAS_TYPED_EVENT_CHANNEL */
private:
/// An per-task allocator
ACE_Allocator *allocator_;
/// Helper data structure to minimize memory allocations...
ACE_Locked_Data_Block<ACE_Lock_Adapter<TAO_SYNCH_MUTEX> > data_block_;
};
// ****************************************************************
class TAO_Event_Serv_Export TAO_CEC_Dispatch_Command : public ACE_Message_Block
{
public:
/// Constructor, it will allocate its own data block
TAO_CEC_Dispatch_Command (ACE_Allocator *mb_allocator = 0);
/// Constructor, it assumes ownership of the data block
TAO_CEC_Dispatch_Command (ACE_Data_Block*,
ACE_Allocator *mb_allocator = 0);
/// Destructor
virtual ~TAO_CEC_Dispatch_Command (void);
/// Command callback
virtual int execute (ACE_ENV_SINGLE_ARG_DECL_NOT_USED) = 0;
};
// ****************************************************************
class TAO_Event_Serv_Export TAO_CEC_Shutdown_Task_Command : public TAO_CEC_Dispatch_Command
{
public:
/// Constructor
TAO_CEC_Shutdown_Task_Command (ACE_Allocator *mb_allocator = 0);
/// Command callback
virtual int execute (ACE_ENV_SINGLE_ARG_DECL_NOT_USED);
};
// ****************************************************************
class TAO_Event_Serv_Export TAO_CEC_Push_Command : public TAO_CEC_Dispatch_Command
{
public:
/// Constructor
TAO_CEC_Push_Command (TAO_CEC_ProxyPushSupplier* proxy,
CORBA::Any& event,
ACE_Data_Block* data_block,
ACE_Allocator *mb_allocator);
/// Destructor
virtual ~TAO_CEC_Push_Command (void);
/// Command callback
virtual int execute (ACE_ENV_SINGLE_ARG_DECL_NOT_USED);
private:
/// The proxy
TAO_CEC_ProxyPushSupplier* proxy_;
/// The event
CORBA::Any event_;
};
// ****************************************************************
#if defined (TAO_HAS_TYPED_EVENT_CHANNEL)
class TAO_Event_Serv_Export TAO_CEC_Invoke_Command : public TAO_CEC_Dispatch_Command
{
public:
/// Constructor
TAO_CEC_Invoke_Command (TAO_CEC_ProxyPushSupplier* proxy,
TAO_CEC_TypedEvent& typed_event,
ACE_Data_Block* data_block,
ACE_Allocator *mb_allocator);
/// Destructor
virtual ~TAO_CEC_Invoke_Command (void);
/// Command callback
virtual int execute (ACE_ENV_SINGLE_ARG_DECL_NOT_USED);
private:
/// The proxy
TAO_CEC_ProxyPushSupplier* proxy_;
/// The event
TAO_CEC_TypedEvent typed_event_;
};
#endif /* TAO_HAS_TYPED_EVENT_CHANNEL */
#if defined (__ACE_INLINE__)
#include "CEC_Dispatching_Task.i"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_CEC_DISPATCHING_TASK_H */
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