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// -*- C++ -*-
/**
* @file EC_TPC_Dispatching.h
*
* $Id$
*
* @author Chris Cleeland <cleeland at ociweb.com>
*
*/
#ifndef TAO_EC_TPC_DISPATCHING_H
#define TAO_EC_TPC_DISPATCHING_H
#include /**/ "ace/pre.h"
#include "ace/Hash_Map_Manager_T.h"
#include "ace/Null_Mutex.h"
#include "orbsvcs/Event/EC_Dispatching.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "orbsvcs/Event/EC_TPC_Dispatching_Task.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
class TAO_EC_Event_Channel_Base;
/**
* @class TAO_EC_TPC_Dispatching
*
* @brief Dispatching strategy that isolates deliveries to a consumer from any other.
*
* This strategy uses a thread per consumer, and was specifically designed to
* isolate the effects of an ill-behaved consumer from affecting other consumers.
*/
class TAO_RTEvent_Serv_Export TAO_EC_TPC_Dispatching : public TAO_EC_Dispatching
{
public:
TAO_EC_TPC_Dispatching (int nthreads,
int thread_creation_flags,
int thread_priority,
int force_activate,
TAO_EC_Queue_Full_Service_Object* so);
~TAO_EC_TPC_Dispatching ();
// = The EC_Dispatching methods.
virtual void activate (void);
virtual void shutdown (void);
virtual void push (TAO_EC_ProxyPushSupplier* proxy,
RtecEventComm::PushConsumer_ptr consumer,
const RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info);
virtual void push_nocopy (TAO_EC_ProxyPushSupplier* proxy,
RtecEventComm::PushConsumer_ptr consumer,
RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info);
int add_consumer (RtecEventComm::PushConsumer_ptr consumer);
int remove_consumer (RtecEventComm::PushConsumer_ptr consumer);
private:
// Use our own thread manager
ACE_Thread_Manager thread_manager_;
/// The number of active tasks
int nthreads_;
/// The flags (THR_BOUND, THR_NEW_LWP, etc.) used to create the
/// dispatching threads.
int thread_creation_flags_;
/// The priority of the dispatching threads.
int thread_priority_;
/// If activation at the requested priority fails then we fallback on
/// the defaults for thread activation.
int force_activate_;
typedef ACE_Hash_Map_Manager_Ex<RtecEventComm::PushConsumer_ptr,TAO_EC_Dispatching_Task*,ACE_Pointer_Hash<RtecEventComm::PushConsumer_ptr>,ACE_Equal_To<RtecEventComm::PushConsumer_ptr>,ACE_Null_Mutex> MAPTYPE;
// Tweak the default size of this map by #defining
// TAO_EC_TPC_DISPATCHING_DEFAULT_MAP_SIZE
MAPTYPE consumer_task_map_;
// Lock for modifying the map. It's not enough to have a lock only
// on the map, because we have to hold the map constant while doing
// multiple distinct map manipulations, such as in remove_consumer().
TAO_SYNCH_MUTEX lock_;
// Service object information
TAO_EC_Queue_Full_Service_Object* queue_full_service_object_; // @@ who will release?
// @@ check to see how the factory gets released...
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_EC_TPC_DISPATCHING_H */
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