Profile.cpp

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// $Id: Profile.cpp 81429 2008-04-24 18:49:54Z johnnyw $

#include "tao/Profile.h"
#include "tao/Messaging_PolicyValueC.h"
#include "tao/Stub.h"
#include "tao/debug.h"
#include "tao/target_specification.h"
#include "tao/ORB_Core.h"
#include "tao/Client_Strategy_Factory.h"
#include "tao/CDR.h"
#include "tao/SystemException.h"
#include "tao/PolicyC.h"
#include "tao/Endpoint.h"

#include "ace/ACE.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_ctype.h"

#if !defined (__ACE_INLINE__)
#include "tao/Profile.inl"
#endif /* __ACE_INLINE__ */


ACE_RCSID (tao,
           Profile,
           "$Id: Profile.cpp 81429 2008-04-24 18:49:54Z johnnyw $")

// ****************************************************************

TAO_BEGIN_VERSIONED_NAMESPACE_DECL

TAO_Profile::TAO_Profile (CORBA::ULong tag,
                          TAO_ORB_Core *orb_core,
                          const TAO::ObjectKey &obj_key,
                          const TAO_GIOP_Message_Version &version)
  : version_ (version)
    , are_policies_parsed_ (false)
    , addressing_mode_ (0)
    , tagged_profile_ (0)
    , ref_object_key_ (0)
    , tag_ (tag)
    , orb_core_ (orb_core)
    , forward_to_ (0)
    , refcount_ (this->orb_core_->
                   client_factory ()->create_profile_refcount ())
    , tagged_profile_lock_ ()
    , tagged_profile_created_ (false)
{
  (void) this->orb_core_->object_key_table ().bind (obj_key,
                                                    this->ref_object_key_);
}

TAO_Profile::TAO_Profile (CORBA::ULong tag,
                          TAO_ORB_Core *orb_core,
                          const TAO_GIOP_Message_Version &version)
  : version_ (version)
    , are_policies_parsed_ (false)
    , addressing_mode_ (0)
    , tagged_profile_ (0)
    , ref_object_key_ (0)
    , tag_ (tag)
    , orb_core_ (orb_core)
    , forward_to_ (0)
    , refcount_ (this->orb_core_->
                   client_factory ()->create_profile_refcount ())
    , tagged_profile_lock_ ()
    , tagged_profile_created_ (false)
{
}

TAO_Profile::~TAO_Profile (void)
{
  if (this->tagged_profile_)
    {
      delete this->tagged_profile_;
    }

  this->orb_core_->object_key_table ().unbind (this->ref_object_key_);

  //@@ TAO_PROFILE_SPL_DESTRUCTOR_ADD_HOOK
}

void
TAO_Profile::add_tagged_component (const IOP::TaggedComponent &component)
{
  // Sanity checks.
  this->verify_orb_configuration ();

  this->verify_profile_version ();

  // ----------------------------------------------------------------

  // Add the given tagged component to this profile.
  //
  // Note that multiple tagged profiles with the same tag value may be
  // added, unless the tagged component is known to be unique by TAO.
  this->tagged_components_.set_component (component);
}


TAO_Endpoint *
TAO_Profile::base_endpoint (void)
{
  return this->endpoint();
}

TAO::ObjectKey *
TAO_Profile::_key (void) const
{
  TAO::ObjectKey *key = 0;

  if (this->ref_object_key_)
    {
      ACE_NEW_RETURN (key,
                      TAO::ObjectKey (this->ref_object_key_->object_key ()),
                      0);
    }
  return key;
}


int
TAO_Profile::encode (TAO_OutputCDR &stream) const
{
  // UNSIGNED LONG, protocol tag
  stream.write_ulong (this->tag_);

  // Create the encapsulation....
  TAO_OutputCDR encap (ACE_CDR::DEFAULT_BUFSIZE,
                       TAO_ENCAP_BYTE_ORDER,
                       this->orb_core ()->output_cdr_buffer_allocator (),
                       this->orb_core ()->output_cdr_dblock_allocator (),
                       this->orb_core ()->output_cdr_msgblock_allocator (),
                       this->orb_core ()->orb_params ()->cdr_memcpy_tradeoff (),
                       TAO_DEF_GIOP_MAJOR,
                       TAO_DEF_GIOP_MINOR);

#if defined (TAO_ZERO_TAO_OUTPUTCDR_ALLOCATED_BUFFERS)
  // Support limited oref ACE_OS::strcmp
  (void) ACE_OS::memset (encap.current()->wr_ptr (),
                         0,
                         encap.current()->space ());
#endif /* TAO_ZERO_TAO_OUTPUTCDR_ALLOCATED_BUFFERS */

  // Create the profile body
  this->create_profile_body (encap);

  // write the encapsulation as an octet sequence...
  stream << CORBA::ULong (encap.total_length ());
  stream.write_octet_array_mb (encap.begin ());

  return 1;
}

int
TAO_Profile::decode (TAO_InputCDR& cdr)
{
#if !defined (ACE_NLOGGING)
  size_t const encap_len = cdr.length ();
#endif

  // Read and verify major, minor versions, ignoring profiles
  // whose versions we don't understand.
  if (!(cdr.read_octet (this->version_.major)
        && this->version_.major == TAO_DEF_GIOP_MAJOR
        && cdr.read_octet (this->version_.minor)
        && this->version_.minor <= TAO_DEF_GIOP_MINOR))
    {
      if (TAO_debug_level > 0)
        {
          ACE_DEBUG ((LM_DEBUG,
                      ACE_TEXT ("TAO (%P|%t) - Profile::decode - v%d.%d\n"),
                      this->version_.major,
                      this->version_.minor));
        }

      return -1;
    }

  // Transport specific details
  if (this->decode_profile (cdr) < 0)
    {
      return -1;
    }

  // @@NOTE: This place *may* need strategizing. Here are the
  // issues. Placing the ObjectKey in the table adds an allocation and
  // a lock while decoding. This is bad for some cases especially if
  // the application is marshalling object references across to the
  // server end. But the server could use "lazy" evaluation and avoid
  // this during marshalling.
  //
  // The only place this will get important is when a thead tries to
  // use the object reference to create a CORBA object to make an
  // invocation. Since creation of a CORBA object itself is expensive,
  // it looks like we may not need to worry much.
  //
  // Remember strategizing needs  reconciliation of forces imposed
  // by runtime memory growth. Doing a random strategization would
  // destroy the wins in runtime memory growth got by using this
  // table scheme.
  TAO::ObjectKey ok;

  // ... and object key.
  if (TAO::ObjectKey::demarshal_key (ok,
                                     cdr) == 0)
    {
      return -1;
    }

  TAO::ObjectKey_Table &okt = this->orb_core ()->object_key_table ();

  if (okt.bind (ok, this->ref_object_key_) == -1)
    {
      return -1;
    }

  // Tagged Components *only* exist after version 1.0!
  // For GIOP 1.2, IIOP and GIOP have same version numbers!
  if (this->version_.major > 1
      || this->version_.minor > 0)
    {
      if (this->tagged_components_.decode (cdr) == 0)
        {
          return -1;
        }
    }

  if (cdr.length () != 0 && TAO_debug_level)
    {
      // If there is extra data in the profile we are supposed to
      // ignore it, but print a warning just in case...
      ACE_DEBUG ((LM_DEBUG,
                  ACE_TEXT ("%d bytes out of %d left after profile data\n"),
                  cdr.length (),
                  encap_len));
    }

  // Decode any additional endpoints per profile. This is used by RTCORBA
  // and by IIOP when TAG_ALTERNATE_IIOP_ADDRESS components are present.
  if (this->decode_endpoints () == -1)
    {
      return -1;
    }

  return 1;
}

IOP::TaggedProfile *
TAO_Profile::create_tagged_profile (void)
{
  if (this->tagged_profile_created_)
    return this->tagged_profile_;

  ACE_GUARD_RETURN (TAO_SYNCH_MUTEX,
                    guard,
                    this->tagged_profile_lock_,
                    this->tagged_profile_);

  // .. DCL
  if (!this->tagged_profile_created_)
    {
      ACE_NEW_RETURN (this->tagged_profile_,
                      IOP::TaggedProfile,
                      0);

      // As we have not created we will now create the TaggedProfile
      this->tagged_profile_->tag = this->tag_;

      // Create the encapsulation....
      TAO_OutputCDR encap (ACE_DEFAULT_CDR_BUFSIZE,
                           TAO_ENCAP_BYTE_ORDER,
                           this->orb_core ()->output_cdr_buffer_allocator (),
                           this->orb_core ()->output_cdr_dblock_allocator (),
                           this->orb_core ()->output_cdr_msgblock_allocator (),
                           this->orb_core ()->orb_params ()->cdr_memcpy_tradeoff (),
                           TAO_DEF_GIOP_MAJOR,
                           TAO_DEF_GIOP_MINOR);

      // Create the profile body
      this->create_profile_body (encap);

      CORBA::ULong const length =
        static_cast <CORBA::ULong> (encap.total_length ());

#if (TAO_NO_COPY_OCTET_SEQUENCES == 1)
      // Place the message block in to the Sequence of Octets that we
      // have
      this->tagged_profile_->profile_data.replace (length, encap.begin ());
#else
      this->tagged_profile_->profile_data.length (length);
      CORBA::Octet *buffer =
        this->tagged_profile_->profile_data.get_buffer ();

      for (const ACE_Message_Block *i = encap.begin ();
           i != encap.end ();
           i = i->next ())
        {
          ACE_OS::memcpy (buffer, i->rd_ptr (), i->length ());
          buffer += i->length ();
        }
#endif /* TAO_NO_COPY_OCTET_SEQUENCES == 1 */

      this->tagged_profile_created_ = true;
    }

  return this->tagged_profile_;
}

void
TAO_Profile::set_tagged_components (TAO_OutputCDR &out_cdr)
{
  CORBA::ULong const length = static_cast <CORBA::ULong> (out_cdr.total_length ());

  IOP::TaggedComponent tagged_component;
  tagged_component.tag = TAO_TAG_ENDPOINTS;
  tagged_component.component_data.length (length);
  CORBA::Octet *buf =
    tagged_component.component_data.get_buffer ();

  for (const ACE_Message_Block *iterator = out_cdr.begin ();
       iterator != 0;
       iterator = iterator->cont ())
    {
      size_t const i_length = iterator->length ();
      ACE_OS::memcpy (buf, iterator->rd_ptr (), i_length);

      buf += i_length;
    }

  // Add component with encoded endpoint data to this profile's
  // TaggedComponents.
  tagged_components_.set_component (tagged_component);
}


void
TAO_Profile::policies (CORBA::PolicyList *policy_list)
{
#if (TAO_HAS_CORBA_MESSAGING == 1)

  if (policy_list == 0)
    {
      if (TAO_debug_level)
        {
          ACE_DEBUG ((LM_DEBUG,
                      ACE_TEXT ("TAO_Profile::policies: ")
                      ACE_TEXT ("Null Policy List!\n")));
        }

      return;
    }

  Messaging::PolicyValue pv;
  Messaging::PolicyValueSeq policy_value_seq;

  size_t length;
  CORBA::Octet *buf = 0;

  policy_value_seq.length (policy_list->length ());

  // This loop iterates through CORBA::PolicyList to convert
  // each CORBA::Policy into a CORBA::PolicyValue
  const size_t plen = policy_list->length ();

  for (CORBA::ULong i = 0; i < plen; ++i)
    {
      TAO_OutputCDR out_CDR;
      policy_value_seq[i].ptype =
        (*policy_list)[i]->policy_type ();

      out_CDR << ACE_OutputCDR::from_boolean (TAO_ENCAP_BYTE_ORDER);
      (*policy_list)[i]->_tao_encode (out_CDR);

      length = out_CDR.total_length ();
      policy_value_seq[i].pvalue.length (static_cast <CORBA::ULong>(length));

      buf = policy_value_seq[i].pvalue.get_buffer ();

      // Copy the CDR buffer data into the octet sequence buffer.

      for (const ACE_Message_Block *iterator = out_CDR.begin ();
           iterator != 0;
           iterator = iterator->cont ())
        {
          ACE_OS::memcpy (buf, iterator->rd_ptr (), iterator->length ());
          buf += iterator->length ();
        }
    }

  TAO_OutputCDR out_cdr;
  // Now we have to embed the Messaging::PolicyValueSeq into
  // a TaggedComponent.

  IOP::TaggedComponent tagged_component;
  tagged_component.tag = Messaging::TAG_POLICIES;

  out_cdr << ACE_OutputCDR::from_boolean (TAO_ENCAP_BYTE_ORDER);
  out_cdr << policy_value_seq;

  length = out_cdr.total_length ();

  tagged_component.component_data.length (static_cast <CORBA::ULong>(length));
  buf = tagged_component.component_data.get_buffer ();

  for (const ACE_Message_Block *iterator = out_cdr.begin ();
       iterator != 0;
       iterator = iterator->cont ())
    {
      size_t const i_length = iterator->length ();
      ACE_OS::memcpy (buf, iterator->rd_ptr (), i_length);

      buf += i_length;
    }

  // Eventually we add the TaggedComponent to the TAO_TaggedComponents
  // member variable.
  tagged_components_.set_component (tagged_component);
  this->are_policies_parsed_ = true;

#else /* TAO_HAS_CORBA_MESSAGING == 1 */

  ACE_UNUSED_ARG (policy_list);

#endif /* TAO_HAS_CORBA_MESSAGING == 1 */
}



void
TAO_Profile::get_policies (CORBA::PolicyList& pl)
{
#if (TAO_HAS_CORBA_MESSAGING == 1) && !defined (CORBA_E_MICRO)

  if (!this->are_policies_parsed_)
    // None has already parsed the policies.
    {
      IOP::TaggedComponent tagged_component;
      tagged_component.tag = Messaging::TAG_POLICIES;

      // This gets a component with the proper "tag" field
      // if it exists.
      if (this->tagged_components_.get_component (tagged_component))
        {
          const CORBA::Octet *buf =
            tagged_component.component_data.get_buffer ();

          TAO_InputCDR in_cdr (reinterpret_cast <const char *> (buf),
                               tagged_component.component_data.length ());

          // Extract the Byte Order
          CORBA::Boolean byte_order;

          if ((in_cdr >> ACE_InputCDR::to_boolean (byte_order)) == 0)
            {
              return ;
            }

          in_cdr.reset_byte_order (static_cast <int> (byte_order));

          // Now we take out the Messaging::PolicyValueSeq out from the
          // CDR.
          Messaging::PolicyValueSeq policy_value_seq;

          if (!(in_cdr >> policy_value_seq))
            {
              throw ::CORBA::INV_OBJREF ();
            }

          // Here we extract the Messaging::PolicyValue out of the sequence
          // and we convert those into the proper CORBA::Policy

          CORBA::Policy_var policy;
          CORBA::ULong const length = policy_value_seq.length ();

          // Set the policy list length.
          pl.length (length);

          for (CORBA::ULong i = 0; i < length; ++i)
            {
              try
                {
                  policy =
                    this->orb_core_->orb ()->_create_policy (
                      policy_value_seq[i].ptype);

                  if (!CORBA::is_nil (policy.in ()))
                    {
                      buf = policy_value_seq[i].pvalue.get_buffer ();

                      TAO_InputCDR in_cdr (
                        reinterpret_cast <const char*>  (buf),
                        policy_value_seq[i].pvalue.length ());

                      if (!(in_cdr >> ACE_InputCDR::to_boolean (byte_order)))
                        throw ::CORBA::INV_OBJREF ();

                      in_cdr.reset_byte_order (static_cast <int> (byte_order));

                      policy->_tao_decode (in_cdr);
                      pl[i] = policy._retn ();
                    }
                  else
                    {
                      // This case should occure when in the IOR are
                      // embedded policies that TAO doesn't support,
                      // so as specified by the RT-CORBA
                      // spec. ptc/99-05-03 we just ignore these
                      // un-understood policies.

                      if (TAO_debug_level >= 5)
                        ACE_DEBUG ((LM_DEBUG,
                                    ACE_TEXT ("The IOR contains unsupported ")
                                    ACE_TEXT ("policies.\n")));
                    }
                }
              catch (const ::CORBA::Exception& ex)
                {
                  // This case should occur when in the IOR are
                  // embedded policies that TAO doesn't support, so as
                  // specified by the RT-CORBA spec. ptc/99-05-03 we
                  // just ignore these un-understood policies.

                  if (TAO_debug_level >= 5)
                    ex._tao_print_exception (
                      ACE_TEXT ("IOR contains ")
                      ACE_TEXT ("unsupported policies."));
                }
            }
        }
    }

#else
  ACE_UNUSED_ARG (pl);
#endif /* (TAO_HAS_CORBA_MESSAGING == 1) */

}


void
TAO_Profile::verify_orb_configuration (void)
{
  // If the ORB isn't configured to support tagged components, then
  // throw an exception.
  if (this->orb_core_->orb_params ()->std_profile_components () == 0
      || !this->orb_core_->orb ()->_use_omg_ior_format ())
    {
      if (TAO_debug_level > 0)
        {
          ACE_ERROR ((LM_ERROR,
                      ACE_TEXT ("(%P|%t) Cannot add ")
                      ACE_TEXT ("IOP::TaggedComponent to profile.\n")
                      ACE_TEXT ("(%P|%t) Standard profile components ")
                      ACE_TEXT ("have been disabled or URL style IORs\n")
                      ACE_TEXT ("(%P|%t) are in use.  Try ")
                      ACE_TEXT ("\"-ORBStdProfileComponents 1\" and/or\n")
                      ACE_TEXT ("(%P|%t) \"-ORBObjRefStyle IOR\".\n")));
        }

      // According to the Portable Interceptor specification, we're
      // supposed to throw a CORBA::BAD_PARAM exception if it isn't
      // possible to add components to the profile.
      // @todo: We need the proper minor code as soon as the spec is
      //        updated.
      throw ::CORBA::BAD_PARAM (
                   CORBA::SystemException::_tao_minor_code (
                      0,
                      EINVAL),
                   CORBA::COMPLETED_NO);
    }
}

void
TAO_Profile::verify_profile_version (void)
{
  // GIOP 1.0 does not support tagged components.  Throw an exception
  // if the profile is a GIOP 1.0 profile.

  if (this->version_.major == 1 && this->version_.minor == 0)
    {
      if (TAO_debug_level > 0)
        {
          ACE_ERROR ((LM_ERROR,
                      ACE_TEXT ("(%P|%t) Cannot add ")
                      ACE_TEXT ("IOP::TaggedComponent to GIOP 1.0")
                      ACE_TEXT ("IOR profile.\n")
                      ACE_TEXT ("(%P|%t) Try using a GIOP 1.1 or ")
                      ACE_TEXT ("greater endpoint.\n")));
        }

      // According to the Portable Interceptor specification, we're
      // supposed to throw a CORBA::BAD_PARAM exception if it isn't
      // possible to add components to the profile.
      // @todo: We need the proper minor code as soon as the spec is
      //        updated.
      throw ::CORBA::BAD_PARAM (
                   CORBA::SystemException::_tao_minor_code (
                     0,
                     EINVAL),
                   CORBA::COMPLETED_NO);
    }
}

int
TAO_Profile::supports_multicast (void) const
{
  // Most profiles do not support multicast endpoints.
  return 0;
}

bool
TAO_Profile::supports_non_blocking_oneways (void) const
{
  return !(this->version_.major == 1 && this->version_.minor == 0);
}

void
TAO_Profile::addressing_mode (CORBA::Short addr)
{
  // ** See race condition note about addressing mode in Profile.h **
  switch (addr)
    {
    case TAO_Target_Specification::Key_Addr:
    case TAO_Target_Specification::Profile_Addr:
    case TAO_Target_Specification::Reference_Addr:
      this->addressing_mode_ = addr;
      break;

    default:
      throw ::CORBA::BAD_PARAM (
             CORBA::SystemException::_tao_minor_code (
               0,
               EINVAL),
             CORBA::COMPLETED_NO);
    }
}

void
TAO_Profile::parse_string (const char *ior)
{
  if (!ior || !*ior)
    {
      throw ::CORBA::INV_OBJREF (
                   CORBA::SystemException::_tao_minor_code (
                     0,
                     EINVAL),
                   CORBA::COMPLETED_NO);
    }

  // Remove the "N.n@" version prefix, if it exists, and verify the
  // version is one that we accept.

  // Check for version
  if (ACE_OS::ace_isdigit (ior [0]) &&
      ior[1] == '.' &&
      ACE_OS::ace_isdigit (ior [2]) &&
      ior[3] == '@')
    {
      // @@ This may fail for non-ascii character sets [but take that
      // with a grain of salt]
      this->version_.set_version ((char) (ior[0] - '0'),
                                  (char) (ior[2] - '0'));
      ior += 4;
      // Skip over the "N.n@"
    }
  else
    {
      // CORBA spec requires 1.0 if a version isn't specified.
      this->version_.set_version (1, 0);
    }

  if (this->version_.major != TAO_DEF_GIOP_MAJOR ||
      this->version_.minor >  TAO_DEF_GIOP_MINOR)
    {
      throw ::CORBA::INV_OBJREF (
                   CORBA::SystemException::_tao_minor_code (
                     0,
                     EINVAL),
                   CORBA::COMPLETED_NO);
    }

  this->parse_string_i (ior);
}

CORBA::Boolean
TAO_Profile::is_equivalent (const TAO_Profile *other)
{
  CORBA::Boolean result = false;
  if (other)
    {
      TAO_Service_Callbacks::Profile_Equivalence callback
        = this->is_equivalent_hook (other);
      switch (callback)
        {
          case TAO_Service_Callbacks::DONT_KNOW:
            return this->tag () == other->tag ()
                && this->version_ == other->version ()
                && this->endpoint_count () == other->endpoint_count ()
                && this->object_key () == other->object_key ()
                && this->do_is_equivalent (other);
          case TAO_Service_Callbacks::EQUIVALENT:
            result = true;
            break;
          case TAO_Service_Callbacks::NOT_EQUIVALENT:
            break;
        }
    }
  return result;
}

CORBA::Boolean
TAO_Profile::compare_key (const TAO_Profile *other) const
{
  return (this->ref_object_key_ == other->ref_object_key_) ||
    ((this->ref_object_key_ != 0 &&
      other->ref_object_key_ != 0 &&
      this->ref_object_key_->object_key() ==
      other->ref_object_key_->object_key()));
}

TAO_Endpoint *
TAO_Profile::first_filtered_endpoint (void)
{
  TAO_Endpoint *ep = this->endpoint();
  return ep == 0 ? 0 : ep->next_filtered(this->orb_core_,0);
}

TAO_Endpoint *
TAO_Profile::next_filtered_endpoint (TAO_Endpoint *source)
{
  if (source == 0)
    return this->first_filtered_endpoint();
  return source->next_filtered(this->orb_core_,this->endpoint());
}

void
TAO_Profile::add_generic_endpoint (TAO_Endpoint *)
{
  // noop for the base type
}

TAO_Service_Callbacks::Profile_Equivalence
TAO_Profile::is_equivalent_hook (const TAO_Profile *other)
{
  // Allow services to apply their own definition of "equivalence."
  return this->orb_core_->is_profile_equivalent (this, other);
}

CORBA::ULong
TAO_Profile::hash_service_i (CORBA::ULong m)
{
  return this->orb_core_->hash_service (this, m);
}

/*
 * Hook to comment out no op method
 * in the base class that is specialized in the
 * derived class.
 */
//@@ TAO_PROFILE_SPL_COMMENT_HOOK_START

int
TAO_Profile::encode_alternate_endpoints(void)
{
  // this should be a pure virtual, but there are many
  // existing specializations that would need to be
  // modified. This maintains the existing behavior, since
  // the previous version of the POA did not gather alternate
  // endpoints.

  return 0;
}

void
TAO_Profile::remove_generic_endpoint (TAO_Endpoint *)
{
  // default for virtual methods, thus a no-op
}

//@@ TAO_PROFILE_SPL_COMMENT_HOOK_END

//@@ TAO_PROFILE_SPL_METHODS_ADD_HOOK

// ****************************************************************

TAO_Unknown_Profile::TAO_Unknown_Profile (CORBA::ULong tag,
                                          TAO_ORB_Core *orb_core)
  : TAO_Profile (tag,
                 orb_core,
                 TAO_GIOP_Message_Version (TAO_DEF_GIOP_MAJOR,
                                           TAO_DEF_GIOP_MINOR))
{
}

TAO_Endpoint*
TAO_Unknown_Profile::endpoint (void)
{
  return 0;
}

CORBA::ULong
TAO_Unknown_Profile::endpoint_count (void) const
{
  return 0;
}

void
TAO_Unknown_Profile::parse_string (const char *)
{
  // @@ THROW something????
}

void
TAO_Unknown_Profile::parse_string_i (const char *)
{
  // @@ THROW something????
}

char
TAO_Unknown_Profile::object_key_delimiter (void) const
{
  return 0;
}

char *
TAO_Unknown_Profile::to_string (void)
{
  // @@ THROW something?
  return 0;
}

int
TAO_Unknown_Profile::decode (TAO_InputCDR& cdr)
{
  if ((cdr >> this->body_) == 0)
    {
      return -1;
    }

  return 0;
}

int
TAO_Unknown_Profile::decode_profile (TAO_InputCDR &)
{
  return 0;
}

int
TAO_Unknown_Profile::decode_endpoints (void)
{
  return 0;
}

int
TAO_Unknown_Profile::encode (TAO_OutputCDR &stream) const
{
  stream.write_ulong (this->tag ());
  return (stream << this->body_);
}

int
TAO_Unknown_Profile::encode_endpoints (void)
{
  return 0;
}

TAO::ObjectKey *
TAO_Unknown_Profile::_key (void) const
{
  return 0;
}

CORBA::Boolean
TAO_Unknown_Profile::do_is_equivalent (const TAO_Profile* other_profile)
{
  const TAO_Unknown_Profile * op =
    dynamic_cast <const TAO_Unknown_Profile *> (other_profile);

  return (CORBA::Boolean) (op == 0 ? 0 : this->body_ == op->body_);
}

TAO_Service_Callbacks::Profile_Equivalence
TAO_Unknown_Profile::is_equivalent_hook (const TAO_Profile * /* other */)
{
  // Override the default implementation since we don't need the
  // additional checks it performs.

  return TAO_Service_Callbacks::DONT_KNOW;
}

CORBA::ULong
TAO_Unknown_Profile::hash (CORBA::ULong max
                           )
{
  return (ACE::hash_pjw (reinterpret_cast <const char*>
                                          (this->body_.get_buffer ()),
                         this->body_.length ()) % max);
}

void
TAO_Unknown_Profile::create_profile_body (TAO_OutputCDR &) const
{
  // No idea about the profile body! Just return
  return;
}



// *************************************************************
// Operators for TAO_opaque encoding and decoding
// *************************************************************

CORBA::Boolean
operator<< (TAO_OutputCDR& cdr, const TAO_opaque& x)
{
  CORBA::ULong const length = x.length ();
  cdr.write_ulong (length);

#if (TAO_NO_COPY_OCTET_SEQUENCES == 1)
  if (x.mb () != 0)
    {
      cdr.write_octet_array_mb (x.mb ());
    }
  else
#endif /* TAO_NO_COPY_OCTET_SEQUENCES == 1 */
    {
      cdr.write_octet_array (x.get_buffer (), length);
    }

  return (CORBA::Boolean) cdr.good_bit ();
}

CORBA::Boolean
operator>>(TAO_InputCDR& cdr, TAO_opaque& x)
{
  CORBA::ULong length;
  cdr.read_ulong (length);

#if (TAO_NO_COPY_OCTET_SEQUENCES == 1)
  if(ACE_BIT_DISABLED(cdr.start()->flags(),
                      ACE_Message_Block::DONT_DELETE)
     && (cdr.orb_core() == 0
         || 1 == cdr.orb_core()->
         resource_factory()->
         input_cdr_allocator_type_locked()
         )
     )
    {
      x.replace (length, cdr.start ());
      x.mb ()->wr_ptr (x.mb ()->rd_ptr () + length);
      cdr.skip_bytes (length);
    }
  else
#endif /* TAO_NO_COPY_OCTET_SEQUENCES == 0 */
    {
      x.length (length);
      cdr.read_octet_array (x.get_buffer (), length);
    }

  return (CORBA::Boolean) cdr.good_bit ();
}

TAO_END_VERSIONED_NAMESPACE_DECL

---