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/* -*- C++ -*- */
// $Id$
//
// ============================================================================
//
// = LIBRARY
// ORBSVCS Notification
//
// = FILENAME
// Notify_MT_Worker_Task.h
//
// = DESCRIPTION
// MT Worker task
//
// = AUTHOR
// Pradeep Gore <pradeep@cs.wustl.edu>
//
// ============================================================================
#ifndef TAO_MT_NOTIFY_WORKER_TASK_H
#define TAO_MT_NOTIFY_WORKER_TASK_H
#include "ace/pre.h"
#include "ace/Task.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "Notify_Worker_Task.h"
#include "Notify_AdminProperties.h"
class TAO_Notify_Event_Processor;
class TAO_Notify_Buffering_Strategy;
class TAO_Notify_Export TAO_Notify_MT_Worker_Task : public TAO_Notify_Worker_Task, public ACE_Task<ACE_SYNCH>
{
// = TITLE
// TAO_Notify_MT_Worker_Task
//
// = DESCRIPTION
// A MT worker task that we use for various event processing jobs.
// Also see TAO_Notify_Command - This task executes Notify_Command objects.
//
public:
// = Initialization and termination code
TAO_Notify_MT_Worker_Task (int n_threads = 1,
long flags = THR_NEW_LWP | THR_JOINABLE,
int force_active = 0,
long priority = ACE_DEFAULT_THREAD_PRIORITY);
// Constructor.
~TAO_Notify_MT_Worker_Task ();
// Destructor.
virtual int init_task (TAO_Notify_AdminProperties* const admin_properties);
// Init the task
virtual void shutdown (CORBA::Environment& ACE_TRY_ENV);
// shutdown this task.
virtual int process_event (TAO_Notify_Command *mb, CORBA::Environment& ACE_TRY_ENV, ACE_Time_Value *tv = 0);
// Process the command.
protected:
virtual int svc (void);
// svc command processes objects stored in the message queue.
virtual int close (u_long);
// Close hook.
TAO_Notify_Buffering_Strategy* buffering_strategy_;
// The buffering strategy to use.
TAO_Notify_Property_Long* queue_length_;
// We need to decrement the event_count_ everytime we dequeue a command
// object.
// = Parameters to activate
int n_threads_;
long flags_;
int force_active_;
long priority_;
};
//****************************************************************************************
class TAO_Notify_Export TAO_Notify_Shutdown_Command : public TAO_Notify_Command
{
// = TITLE
// TAO_Notify_Shutdown_Command
//
// = DESCRIPTION
// Shutdown command to shutdown the task.
//
public:
TAO_Notify_Shutdown_Command (void);
virtual int execute (CORBA::Environment& ACE_TRY_ENV);
// Returns -1. This signals worker threads to finish servicing requests.
};
//****************************************************************************************
#include "ace/post.h"
#endif /* TAO_MT_NOTIFY_WORKER_TASK_H */
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