Implementation of the PortableServer::Current object. More...

#include <POA_Current_Impl.h>

Collaboration diagram for TAO::Portable_Server::POA_Current_Impl:

Public Member Functions
PortableServer::POA_ptr	get_POA (void)
PortableServer::ObjectId *	get_object_id (void)
PortableServer::Servant	get_servant (void)
CORBA::Object_ptr	get_reference (void)
void	poa (::TAO_Root_POA *)
	Set the POA implementation.
::TAO_Root_POA *	poa (void) const
	Get the POA implemantation.
TAO_ORB_Core &	orb_core (void) const
	ORB Core for this current.
void	object_id (const PortableServer::ObjectId &id)
	Set the object ID.
const PortableServer::ObjectId &	object_id (void) const
	Get the object ID.
void	replace_object_id (const PortableServer::ObjectId &system_id)
	Just replace the object id smartly.
void	object_key (const TAO::ObjectKey &key)
	Set the object key.
const TAO::ObjectKey &	object_key (void) const
	Get the object key.
void	servant (PortableServer::Servant servant)
	Set the servant for the current upcall.
PortableServer::Servant	servant (void) const
	Get the servant for the current upcall.
void	priority (CORBA::Short priority)
	Set the priority for the current upcall.
CORBA::Short	priority (void) const
	Get the priority for the current upcall.
	POA_Current_Impl (void)
	Convenience constructor combining construction & initialization.
POA_Current_Impl *	previous (void) const
	Return the previous current implementation.
void	teardown (void)
	Teardown the current for this request.
void	setup (::TAO_Root_POA *impl, const TAO::ObjectKey &key)
	Setup the current.
Protected Attributes
::TAO_Root_POA *	poa_
	The POA implementation invoking an upcall.
CORBA::Octet	object_id_buf_ [TAO_POA_OBJECT_ID_BUF_SIZE]
PortableServer::ObjectId	object_id_
const TAO::ObjectKey *	object_key_
	The object key of the current context.
PortableServer::Servant	servant_
	The servant for the current upcall.
CORBA::Short	priority_
	The priority for the current upcall.
POA_Current_Impl *	previous_current_impl_
	Current previous from <this>.
bool	setup_done_
	Is setup complete?
TAO_TSS_Resources *	tss_resources_
	Pointer to tss resources.
Private Member Functions
	POA_Current_Impl (const POA_Current_Impl &)
void	operator= (const POA_Current_Impl &)
Friends
class	::TAO_Root_POA

Detailed Description

Implementation of the PortableServer::Current object.

Objects of this class hold state information regarding the current POA invocation. Savvy readers will notice that this contains substantially more methods than the POA spec shows; they exist because the ORB either (a) needs them or (b) finds them useful for implementing a more efficient ORB. The intent is that instances of this class are held in Thread-Specific Storage so that upcalls can get context information regarding their invocation. The POA itself must insure that all <set_*> operations are performed in the execution thread so that the proper <TAO_POA_Current> pointer is obtained from TSS.

Definition at line 66 of file POA_Current_Impl.h.

Constructor & Destructor Documentation

TAO::Portable_Server::POA_Current_Impl::POA_Current_Impl ( void )

Convenience constructor combining construction & initialization.

Definition at line 24 of file POA_Current_Impl.cpp.

      : poa_ (0),
        object_id_ (TAO_POA_OBJECT_ID_BUF_SIZE, 0, object_id_buf_),
        object_key_ (0),
        servant_ (0),
        priority_ (TAO_INVALID_PRIORITY),
        previous_current_impl_ (0),
        setup_done_ (false)
    {
    }

TAO::Portable_Server::POA_Current_Impl::POA_Current_Impl ( const POA_Current_Impl & ) [private]

Member Function Documentation

PortableServer::ObjectId * TAO::Portable_Server::POA_Current_Impl::get_object_id ( void )

Return pointer to the object id through which this was invoked. This may be necessary in cases where a <Servant> is serving under the guise of multiple object ids.

Definition at line 77 of file POA_Current_Impl.cpp.

    {
      PortableServer::ObjectId *objid = 0;

      // Create a new one and pass it back
      ACE_NEW_RETURN (objid,
                      PortableServer::ObjectId (this->object_id_),
                      0);
      return objid;
    }

PortableServer::POA_ptr TAO::Portable_Server::POA_Current_Impl::get_POA ( void )

Return pointer to the invoking POA. Raises the CORBA::NoContext exception.

Definition at line 71 of file POA_Current_Impl.cpp.

    {
      return PortableServer::POA::_duplicate (this->poa_);
    }

CORBA::Object_ptr TAO::Portable_Server::POA_Current_Impl::get_reference ( void )

This operation returns a locally manufactured reference to the object in the context of which it is called.

Definition at line 89 of file POA_Current_Impl.cpp.

    {
      return this->poa_->id_to_reference (this->object_id_);
    }

PortableServer::Servant TAO::Portable_Server::POA_Current_Impl::get_servant ( void )

Returns a reference to the servant that hosts the object in whose context it is called.

Definition at line 95 of file POA_Current_Impl.cpp.

    {
      return this->servant_;
    }

void TAO::Portable_Server::POA_Current_Impl::object_id ( const PortableServer::ObjectId & id )

Set the object ID.

Definition at line 26 of file POA_Current_Impl.inl.

    {
      if (this->object_id_.release () ||
          this->object_id_.get_buffer() == this->object_id_buf_)
        {
          // Resize the current object_id_.  If it is less than the
          // length of the current buffer, no allocation will take place.
          size_t id_size = id.length ();
          this->object_id_.length (id_size);

          // Get the buffer and copy the new object id in it's place.
          ACE_OS::memcpy (this->object_id_.get_buffer (),
                          id.get_buffer (), id_size);
        }
      else
        {
          this->object_id_ = id;
        }
    }

const PortableServer::ObjectId & TAO::Portable_Server::POA_Current_Impl::object_id ( void ) const

Get the object ID.

Definition at line 47 of file POA_Current_Impl.inl.

    {
      return this->object_id_;
    }

void TAO::Portable_Server::POA_Current_Impl::object_key ( const TAO::ObjectKey & key )

Set the object key.

Definition at line 65 of file POA_Current_Impl.inl.

    {
      this->object_key_ = &key;
    }

const TAO::ObjectKey & TAO::Portable_Server::POA_Current_Impl::object_key ( void ) const

Get the object key.

Definition at line 71 of file POA_Current_Impl.inl.

    {
      return *this->object_key_;
    }

void TAO::Portable_Server::POA_Current_Impl::operator= ( const POA_Current_Impl & ) [private]

TAO_ORB_Core & TAO::Portable_Server::POA_Current_Impl::orb_core ( void ) const

ORB Core for this current.

Definition at line 101 of file POA_Current_Impl.cpp.

    {
      return this->poa_->orb_core ();
    }

void TAO::Portable_Server::POA_Current_Impl::poa ( ::TAO_Root_POA * p )

Set the POA implementation.

Definition at line 14 of file POA_Current_Impl.inl.

    {
      this->poa_ = p;
    }

TAO_Root_POA * TAO::Portable_Server::POA_Current_Impl::poa ( void ) const

Get the POA implemantation.

Definition at line 20 of file POA_Current_Impl.inl.

    {
      return this->poa_;
    }

POA_Current_Impl * TAO::Portable_Server::POA_Current_Impl::previous ( void ) const

Return the previous current implementation.

Definition at line 55 of file POA_Current_Impl.cpp.

    {
      return this->previous_current_impl_;
    }

CORBA::Short TAO::Portable_Server::POA_Current_Impl::priority ( void ) const

Get the priority for the current upcall.

Definition at line 95 of file POA_Current_Impl.inl.

    {
      return this->priority_;
    }

void TAO::Portable_Server::POA_Current_Impl::priority ( CORBA::Short priority )

Set the priority for the current upcall.

Definition at line 89 of file POA_Current_Impl.inl.

    {
      this->priority_ = priority;
    }

void TAO::Portable_Server::POA_Current_Impl::replace_object_id ( const PortableServer::ObjectId & system_id )

Just replace the object id smartly.

Definition at line 53 of file POA_Current_Impl.inl.

    {
      // This has the effect of replacing the underlying buffer
      // with that of another object id without copying.
      object_id_.replace (system_id.maximum (),
                          system_id.length (),
                          const_cast <CORBA::Octet *> (system_id.get_buffer ()),
                          0);
    }

PortableServer::Servant TAO::Portable_Server::POA_Current_Impl::servant ( void ) const

Get the servant for the current upcall.

Definition at line 83 of file POA_Current_Impl.inl.

    {
      return this->servant_;
    }

void TAO::Portable_Server::POA_Current_Impl::servant ( PortableServer::Servant servant )

Set the servant for the current upcall.

Definition at line 77 of file POA_Current_Impl.inl.

    {
      this->servant_ = servant;
    }

void TAO::Portable_Server::POA_Current_Impl::setup	(	::TAO_Root_POA *	impl,
		const TAO::ObjectKey &	key
	)

Setup the current.

Definition at line 36 of file POA_Current_Impl.cpp.

    {
      // Remember information about this upcall.
      this->poa_ = p;
      this->object_key_ = &key;

      // Set the current context and remember the old one.
      this->tss_resources_ = TAO_TSS_Resources::instance ();

      this->previous_current_impl_ =
        static_cast <POA_Current_Impl *>
                         (this->tss_resources_->poa_current_impl_);
      this->tss_resources_->poa_current_impl_ = this;

      // Setup is complete.
      this->setup_done_ = true;
    }

void TAO::Portable_Server::POA_Current_Impl::teardown ( void )

Teardown the current for this request.

Definition at line 61 of file POA_Current_Impl.cpp.

    {
      if (this->setup_done_)
        {
          // Reset the old context.
          this->tss_resources_->poa_current_impl_ = this->previous_current_impl_;
        }
    }

Friends And Related Function Documentation

friend class ::TAO_Root_POA [friend]

Definition at line 69 of file POA_Current_Impl.h.

Member Data Documentation

PortableServer::ObjectId TAO::Portable_Server::POA_Current_Impl::object_id_ [protected]

The object ID of the current context. This is the user id and not the id the goes into the IOR. Note also that unlike the object_key, this field is stored by value.

Definition at line 161 of file POA_Current_Impl.h.

CORBA::Octet TAO::Portable_Server::POA_Current_Impl::object_id_buf_[TAO_POA_OBJECT_ID_BUF_SIZE] [protected]

In order to avoid memory allocations, we will populate the object id with this buffer.

Definition at line 154 of file POA_Current_Impl.h.

const TAO::ObjectKey* TAO::Portable_Server::POA_Current_Impl::object_key_ [protected]

The object key of the current context.

Definition at line 164 of file POA_Current_Impl.h.

::TAO_Root_POA* TAO::Portable_Server::POA_Current_Impl::poa_ [protected]

The POA implementation invoking an upcall.

Definition at line 150 of file POA_Current_Impl.h.

POA_Current_Impl* TAO::Portable_Server::POA_Current_Impl::previous_current_impl_ [protected]

Current previous from <this>.

Definition at line 173 of file POA_Current_Impl.h.

CORBA::Short TAO::Portable_Server::POA_Current_Impl::priority_ [protected]

The priority for the current upcall.

Definition at line 170 of file POA_Current_Impl.h.

PortableServer::Servant TAO::Portable_Server::POA_Current_Impl::servant_ [protected]

The servant for the current upcall.

Definition at line 167 of file POA_Current_Impl.h.

bool TAO::Portable_Server::POA_Current_Impl::setup_done_ [protected]

Is setup complete?

Definition at line 176 of file POA_Current_Impl.h.

TAO_TSS_Resources* TAO::Portable_Server::POA_Current_Impl::tss_resources_ [protected]

Pointer to tss resources.

Definition at line 179 of file POA_Current_Impl.h.

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

TAO::Portable_Server::POA_Current_Impl Class Reference

Public Member Functions

Protected Attributes

Private Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation