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/* -*- C++ -*- */
// $Id$
//
// ============================================================================
//
// = LIBRARY
// ORBSVCS Real-time Event Channel
//
// = FILENAME
// EC_Dispatching_Task
//
// = AUTHOR
// Carlos O'Ryan (coryan@cs.wustl.edu)
//
// = CREDITS
// Based on previous work by Tim Harrison (harrison@cs.wustl.edu)
// and other members of the DOC group.
// More details can be found in:
// http://www.cs.wustl.edu/~schmidt/oopsla.ps.gz
// http://www.cs.wustl.edu/~schmidt/JSAC-98.ps.gz
//
//
// ============================================================================
#ifndef TAO_EC_DISPATCHING_TASK_H
#define TAO_EC_DISPATCHING_TASK_H
#include "ace/Task.h"
#include "ace/Message_Block.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "orbsvcs/RtecEventCommC.h"
class TAO_EC_ProxyPushSupplier;
class TAO_ORBSVCS_Export TAO_EC_Dispatching_Task : public ACE_Task<ACE_SYNCH>
{
// = TITLE
// Implement the dispatching queues for FIFO and Priority
// dispatching.
//
// = DESCRIPTION
//
public:
TAO_EC_Dispatching_Task (ACE_Thread_Manager* thr_manager = 0);
// Constructor
virtual int svc (void);
// Process the events in the queue.
virtual void push (TAO_EC_ProxyPushSupplier *proxy,
RtecEventComm::EventSet& event,
CORBA::Environment &env);
private:
ACE_Allocator *allocator_;
// An per-task allocator
ACE_Locked_Data_Block<ACE_Lock_Adapter<ACE_SYNCH_MUTEX> > data_block_;
// Helper data structure to minimize memory allocations...
};
// ****************************************************************
class TAO_ORBSVCS_Export TAO_EC_Dispatch_Command : public ACE_Message_Block
{
public:
TAO_EC_Dispatch_Command (ACE_Allocator *mb_allocator = 0);
// Constructor, it will allocate its own data block
TAO_EC_Dispatch_Command (ACE_Data_Block*,
ACE_Allocator *mb_allocator = 0);
// Constructor, it assumes ownership of the data block
virtual ~TAO_EC_Dispatch_Command (void);
// Destructor
virtual int execute (CORBA::Environment&) = 0;
// Command callback
};
// ****************************************************************
class TAO_ORBSVCS_Export TAO_EC_Shutdown_Command : public TAO_EC_Dispatch_Command
{
public:
TAO_EC_Shutdown_Command (ACE_Allocator *mb_allocator = 0);
// Constructor
virtual int execute (CORBA::Environment&);
// Command callback
};
// ****************************************************************
class TAO_ORBSVCS_Export TAO_EC_Push_Command : public TAO_EC_Dispatch_Command
{
public:
TAO_EC_Push_Command (TAO_EC_ProxyPushSupplier* proxy,
RtecEventComm::EventSet& event,
ACE_Data_Block* data_block,
ACE_Allocator *mb_allocator);
// Constructor
virtual int execute (CORBA::Environment&);
// Command callback
private:
TAO_EC_ProxyPushSupplier* proxy_;
// The proxy
RtecEventComm::EventSet event_;
// The event
};
#if defined (__ACE_INLINE__)
#include "EC_Dispatching_Task.i"
#endif /* __ACE_INLINE__ */
#endif /* TAO_EC_DISPATCHING_TASK_H */
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