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/* -*- C++ -*- */
//=============================================================================
/**
* @file Notify_MT_Worker_Task.h
*
* $Id$
*
* 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_QoSAdmin_i;
/**
* @class TAO_Notify_MT_Worker_Task
*
* @brief TAO_Notify_MT_Worker_Task
*
* A MT worker task that we use for various event processing jobs.
* Also see TAO_Notify_Command - This task executes Notify_Command objects.
*/
class TAO_Notify_Export TAO_Notify_MT_Worker_Task : public TAO_Notify_Worker_Task, public ACE_Task<ACE_SYNCH>
{
public:
// = Initialization and termination code
/// Constructor.
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);
/// Destructor.
~TAO_Notify_MT_Worker_Task ();
/// Init the task
virtual int init_task (TAO_Notify_AdminProperties* const admin_properties,
TAO_Notify_QoSAdmin_i* const qos_properties);
/// Shutdown this task.
virtual void shutdown (ACE_ENV_SINGLE_ARG_DECL);
/// Process the command.
virtual int process_event (TAO_Notify_Command *mb ACE_ENV_ARG_DECL, ACE_Time_Value *tv = 0);
virtual void update_admin (TAO_Notify_AdminProperties& admin);
virtual void update_qos (TAO_Notify_QoSAdmin_i& qos_admin);
protected:
/// svc command processes objects stored in the message queue.
virtual int svc (void);
/// Close hook.
virtual int close (u_long);
/// The buffering strategy to use.
TAO_Notify_Buffering_Strategy* buffering_strategy_;
/// We need to decrement the event_count_ everytime we dequeue a command
/// object.
TAO_Notify_Signal_Property_Long* queue_length_;
// = Parameters to activate
int n_threads_;
long flags_;
int force_active_;
long priority_;
};
//****************************************************************************************
/**
* @class TAO_Notify_Shutdown_Command
*
* @brief TAO_Notify_Shutdown_Command
*
* Shutdown command to shutdown the task.
*/
class TAO_Notify_Export TAO_Notify_Shutdown_Command : public TAO_Notify_Command
{
public:
TAO_Notify_Shutdown_Command (void);
/// Returns -1. This signals worker threads to finish servicing requests.
virtual int execute (ACE_ENV_SINGLE_ARG_DECL);
};
//****************************************************************************************
#include "ace/post.h"
#endif /* TAO_MT_NOTIFY_WORKER_TASK_H */
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