Public Member Functions

TAO_Endpoint Class Reference

Defines the Endpoint interface in the Pluggable Protocol framework. More...

#include <Endpoint.h>

Inheritance diagram for TAO_Endpoint:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 TAO_Endpoint (CORBA::ULong tag, CORBA::Short priority=TAO_INVALID_PRIORITY)
 Constructor.
virtual ~TAO_Endpoint (void)
 Destructor.
CORBA::ULong tag (void) const
 IOP protocol tag accessor.
void priority (CORBA::Short priority)
 priority_ attribute setter.
CORBA::Short priority (void) const
 priority_ attribute getter.

TAO_Endpoint Template Methods

Abstract methods to be implemented by concrete subclasses.



TAO_SYNCH_MUTEX addr_lookup_lock_
 Lock for the address lookup.
CORBA::ULong hash_val_
 Cache the hash value.
CORBA::ULong const tag_
CORBA::Short priority_
virtual CORBA::Boolean is_equivalent (const TAO_Endpoint *other_endpoint)=0
virtual TAO_Endpointnext (void)=0
 Endpoints can be linked in a list.
virtual TAO_Endpointnext_filtered (TAO_ORB_Core *, TAO_Endpoint *root)
virtual int addr_to_string (char *buffer, size_t length)=0
 Return a string representation for the address.
virtual TAO_Endpointduplicate (void)=0
virtual CORBA::ULong hash (void)=0
 Return a hash value for this object.
 TAO_Endpoint (const TAO_Endpoint &)
 Endpoints should not be copied.
void operator= (const TAO_Endpoint &)
 Lock for the address lookup.

Detailed Description

Defines the Endpoint interface in the Pluggable Protocol framework.

Lightweight encapsulation of addressing information for a single acceptor endpoint. In other words, Endpoint represents a single point of contact for the server, and is the smallest unit of addressing information necessary for a client to connect to a server. A Profile contains one or more Endpoints, i.e., knows of one or more ways to contact server(s).

Definition at line 54 of file Endpoint.h.


Constructor & Destructor Documentation

TAO_Endpoint::TAO_Endpoint ( CORBA::ULong  tag,
CORBA::Short  priority = TAO_INVALID_PRIORITY 
)

Constructor.

Definition at line 8 of file Endpoint.inl.

  : addr_lookup_lock_ ()
  // @@ Would be a tragedy if the hash value of this endpoint is 0, in
  //    which case this optimizaton wouldn't work. We can get around
  //    that using a bool. But we don't want to increase the runtime
  //    memory.
  , hash_val_ (0)
  , tag_ (tag)
  , priority_ (priority)

{
}

TAO_Endpoint::~TAO_Endpoint ( void   )  [virtual]

Destructor.

Definition at line 16 of file Endpoint.cpp.

{
}

TAO_Endpoint::TAO_Endpoint ( const TAO_Endpoint  )  [private]

Endpoints should not be copied.


Member Function Documentation

virtual int TAO_Endpoint::addr_to_string ( char *  buffer,
size_t  length 
) [pure virtual]

Return a string representation for the address.

The purpose of this method is to provide a general interface to the underlying address object's addr_to_string method. This allows the protocol implementor to select the appropriate string format.

Returns:
-1 if buffer is too small.

Implemented in TAO_IIOP_Endpoint, TAO_DIOP_Endpoint, and TAO_UIOP_Endpoint.

virtual TAO_Endpoint* TAO_Endpoint::duplicate ( void   )  [pure virtual]

This method returns a deep copy of the corresponding endpoints by allocating memory.

Implemented in TAO_IIOP_Endpoint, TAO_DIOP_Endpoint, and TAO_UIOP_Endpoint.

virtual CORBA::ULong TAO_Endpoint::hash ( void   )  [pure virtual]

Return a hash value for this object.

Implemented in TAO_IIOP_Endpoint, TAO_DIOP_Endpoint, and TAO_UIOP_Endpoint.

virtual CORBA::Boolean TAO_Endpoint::is_equivalent ( const TAO_Endpoint other_endpoint  )  [pure virtual]
Returns:
true if this endpoint is equivalent to other_endpoint.

Implemented in TAO_IIOP_Endpoint, TAO_DIOP_Endpoint, and TAO_UIOP_Endpoint.

virtual TAO_Endpoint* TAO_Endpoint::next ( void   )  [pure virtual]

Endpoints can be linked in a list.

Returns:
The next endpoint in the list, if any.

Implemented in TAO_IIOP_Endpoint, TAO_DIOP_Endpoint, and TAO_UIOP_Endpoint.

TAO_Endpoint * TAO_Endpoint::next_filtered ( TAO_ORB_Core ,
TAO_Endpoint root 
) [virtual]

Return the next endpoint in the list, but use protocol-specific filtering to constrain the value. The orb core is needed to supply any sort of filter arguments, and the root endpoint is needed in case the algorithm needs to rewind. If the supplied root is 0, then this is assumed to be the candidate next endpoint.

To use this, the caller starts off the change with root == 0. This is a bit of a violation in logic, a more correct implementation would accept this == 0 and a non-null root. To do iteration using next_filtered, do: for (TAO_Endpoint *ep = root_endpoint->next_filtered (orb_core, 0); ep != 0; ep = ep->next_filtered(orb_core, root_endpoint)) { }

Reimplemented in TAO_IIOP_Endpoint.

Definition at line 21 of file Endpoint.cpp.

{
  if (root == 0)
    return this;
  return this->next();
}

void TAO_Endpoint::operator= ( const TAO_Endpoint  )  [private]

Lock for the address lookup.

Todo:
This lock should be strategized so that we dont lock in single threaded configurations. It is not possible to do this now as most of the information is available in the ORB_Core which is not available here.
void TAO_Endpoint::priority ( CORBA::Short  priority  ) 

priority_ attribute setter.

Definition at line 35 of file Endpoint.inl.

{
  this->priority_ = p;
}

CORBA::Short TAO_Endpoint::priority ( void   )  const

priority_ attribute getter.

Definition at line 29 of file Endpoint.inl.

{
  return this->priority_;
}

CORBA::ULong TAO_Endpoint::tag ( void   )  const

IOP protocol tag accessor.

Definition at line 23 of file Endpoint.inl.

{
  return this->tag_;
}


Member Data Documentation

TAO_SYNCH_MUTEX TAO_Endpoint::addr_lookup_lock_ [mutable, protected]

Lock for the address lookup.

Todo:
This lock should be strategized so that we dont lock in single threaded configurations. It is not possible to do this now as most of the information is available in the ORB_Core which is not available here.

Definition at line 140 of file Endpoint.h.

Cache the hash value.

Definition at line 143 of file Endpoint.h.

CORBA priority of the acceptor this Endpoint is representing. This is part of TAO 'prioritized endpoints' architecture, and is currently used for RTCORBA only.

Definition at line 154 of file Endpoint.h.

CORBA::ULong const TAO_Endpoint::tag_ [protected]

IOP tag, identifying the protocol for which this endpoint contains addressing info.

Definition at line 147 of file Endpoint.h.


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