TAO_Asynch_Reply_Dispatcher_Base Class Reference

Base class for TAO_Asynch_Reply_Dispatcher and TAO_DII_Deferred_Reply_Dispatcher. More...

#include <Asynch_Reply_Dispatcher_Base.h>

Inheritance diagram for TAO_Asynch_Reply_Dispatcher_Base:

Inheritance graph
Collaboration diagram for TAO_Asynch_Reply_Dispatcher_Base:

Collaboration graph
List of all members.

Public Member Functions

 TAO_Asynch_Reply_Dispatcher_Base (TAO_ORB_Core *orb_core, ACE_Allocator *allocator=0)
 Default constructor.
void transport (TAO_Transport *t)
 Sets the transport for this invocation.
virtual void reply_timed_out (void)=0
 Inform that the reply timed out.
virtual long schedule_timer (CORBA::ULong, const ACE_Time_Value &)=0
 Install the timeout handler.
bool try_dispatch_reply (void)
 A helper method that can be used by the subclasses.
The Reply Dispatcher methods
virtual int dispatch_reply (TAO_Pluggable_Reply_Params &)=0
virtual void connection_closed (void)=0
Mutators for refcount
void incr_refcount (void)
void decr_refcount (void)

Protected Member Functions

virtual ~TAO_Asynch_Reply_Dispatcher_Base (void)

Protected Attributes

IOP::ServiceContextList reply_service_info_
 The service context list.
 The buffer that is used to initialise the data block.
ACE_Data_Block db_
TAO_InputCDR reply_cdr_
 This invocation is using this transport, may change...

Private Attributes

 Lock to protect refcount and is_reply_dispatched_ flag.
CORBA::ULong refcount_
 Refcount paraphernalia for this class.
bool is_reply_dispatched_
 Has the reply been dispatched?

Detailed Description

Base class for TAO_Asynch_Reply_Dispatcher and TAO_DII_Deferred_Reply_Dispatcher.

Constructor & Destructor Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL TAO_Asynch_Reply_Dispatcher_Base::TAO_Asynch_Reply_Dispatcher_Base ( TAO_ORB_Core orb_core,
ACE_Allocator allocator = 0 

Default constructor.

TAO_Asynch_Reply_Dispatcher_Base::~TAO_Asynch_Reply_Dispatcher_Base ( void   )  [protected, virtual]


Member Function Documentation

void TAO_Asynch_Reply_Dispatcher_Base::connection_closed ( void   )  [pure virtual]

The used for the pending reply has been closed. No reply is expected.

If the connection was closed due to a CloseConnection message then we could re-issue the request instead of raising the exception, it would a matter of simply adding a boolean argument to this function.

Implements TAO_Reply_Dispatcher.

void TAO_Asynch_Reply_Dispatcher_Base::decr_refcount ( void   ) 

int TAO_Asynch_Reply_Dispatcher_Base::dispatch_reply ( TAO_Pluggable_Reply_Params  )  [pure virtual]

Dispatch the reply. Return 1 on sucess, -1 on error.

Pluggable Messaging: this method has too many arguments, the "Right Thing"[tm] is for the Transport Object to create a "ClientReply" that encapsulates all we need to process a reply. Naturally it is possible that different messaging protocols implement different variants of such ClientReply class.

Implements TAO_Reply_Dispatcher.

void TAO_Asynch_Reply_Dispatcher_Base::incr_refcount ( void   ) 

void TAO_Asynch_Reply_Dispatcher_Base::reply_timed_out ( void   )  [pure virtual]

Inform that the reply timed out.

virtual long TAO_Asynch_Reply_Dispatcher_Base::schedule_timer ( CORBA::ULong  ,
const ACE_Time_Value  
) [pure virtual]

Install the timeout handler.

void TAO_Asynch_Reply_Dispatcher_Base::transport ( TAO_Transport t  ) 

Sets the transport for this invocation.

bool TAO_Asynch_Reply_Dispatcher_Base::try_dispatch_reply ( void   ) 

A helper method that can be used by the subclasses.

The semantics of this helper method needs careful attention. A call to this method will do the following

Why are we clumping everything in one method. Answer is we need atomicity?

Member Data Documentation

ACE_Allocator* TAO_Asynch_Reply_Dispatcher_Base::allocator_ [private]

Allocator that was used to allocate this reply dispatcher. In case of zero we come from the heap.

char TAO_Asynch_Reply_Dispatcher_Base::buf_[ACE_CDR::DEFAULT_BUFSIZE] [protected]

The buffer that is used to initialise the data block.

ACE_Data_Block TAO_Asynch_Reply_Dispatcher_Base::db_ [protected]

Datablock that is created on the stack to initialise the CDR stream underneath.

bool TAO_Asynch_Reply_Dispatcher_Base::is_reply_dispatched_ [private]

Has the reply been dispatched?

ACE_Lock* TAO_Asynch_Reply_Dispatcher_Base::lock_ [private]

Lock to protect refcount and is_reply_dispatched_ flag.

CORBA::ULong TAO_Asynch_Reply_Dispatcher_Base::refcount_ [private]

Refcount paraphernalia for this class.

TAO_InputCDR TAO_Asynch_Reply_Dispatcher_Base::reply_cdr_ [protected]

CDR stream which has the reply information that needs to be demarshalled by the stubs

IOP::ServiceContextList TAO_Asynch_Reply_Dispatcher_Base::reply_service_info_ [protected]

The service context list.

Note, that this is not a reference as in the synchronous case. We own the reply_service_info because our TAO_Asynch_Invocation or TAO_DII_Deferred_Invocation will go out of scope before we are done.

TAO_Transport* TAO_Asynch_Reply_Dispatcher_Base::transport_ [protected]

This invocation is using this transport, may change...

The documentation for this class was generated from the following files:
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