// -*- Mode: C++; -*-
//                            Package   : omniORB2
// nvList.cc                  Created on: 9/1998
//                            Author    : David Riddoch (djr)
//
//    Copyright (C) 1996, 1997 Olivetti & Oracle Research Laboratory
//
//    This file is part of the omniORB library
//
//    The omniORB library is free software; you can redistribute it and/or
//    modify it under the terms of the GNU Library General Public
//    License as published by the Free Software Foundation; either
//    version 2 of the License, or (at your option) any later version.
//
//    This library is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//    Library General Public License for more details.
//
//    You should have received a copy of the GNU Library General Public
//    License along with this library; if not, write to the Free
//    Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  
//    02111-1307, USA
//
//
// Description:
//   Implementation of CORBA::NVList.
//

#include <pseudo.h>


#define INIT_MAX_SEQ_LENGTH  6


NVListImpl::NVListImpl()
{
  pd_list.length(INIT_MAX_SEQ_LENGTH);
  pd_list.length(0);
}


NVListImpl::~NVListImpl()
{
  for( CORBA::ULong i=0; i < pd_list.length(); i++ )
    CORBA::release(pd_list[i]);
}


CORBA::ULong
NVListImpl::count() const
{
  return pd_list.length();
}


CORBA::NamedValue_ptr
NVListImpl::add(CORBA::Flags flags)
{
  CORBA::ULong len = pd_list.length();

  if( len == pd_list.maximum() )
    // allocate new space in decent chunks
    pd_list.length(len * 6 / 5 + 1);

  pd_list.length(len + 1);
  pd_list[len] = new NamedValueImpl(flags);
  return pd_list[len];
}


CORBA::NamedValue_ptr
NVListImpl::add_item(const char* name, CORBA::Flags flags)
{
  CORBA::ULong len = pd_list.length();

  if( len == pd_list.maximum() )
    pd_list.length(len * 6 / 5 + 1);

  pd_list.length(len + 1);
  pd_list[len] = new NamedValueImpl(name, flags);
  return pd_list[len];
}


CORBA::NamedValue_ptr
NVListImpl::add_value(const char* name, const CORBA::Any& value,
		      CORBA::Flags flags)
{
  CORBA::ULong len = pd_list.length();

  if( len == pd_list.maximum() )
    pd_list.length(len * 6 / 5 + 1);

  pd_list.length(len + 1);
  pd_list[len] = new NamedValueImpl(name, value, flags);
  return pd_list[len];
}


CORBA::NamedValue_ptr
NVListImpl::add_item_consume(char* name, CORBA::Flags flags)
{
  CORBA::ULong len = pd_list.length();

  if( len == pd_list.maximum() )
    pd_list.length(len * 6 / 5 + 1);

  pd_list.length(len + 1);
  pd_list[len] = new NamedValueImpl(name, flags);
  return pd_list[len];
}


CORBA::NamedValue_ptr
NVListImpl::add_value_consume(char* name, CORBA::Any* value,
			      CORBA::Flags flags)
{
  CORBA::ULong len = pd_list.length();

  if( len == pd_list.maximum() )
    pd_list.length(len * 6 / 5 + 1);

  pd_list.length(len + 1);
  pd_list[len] = new NamedValueImpl(name, value, flags);
  return pd_list[len];
}


CORBA::NamedValue_ptr
NVListImpl::item(CORBA::ULong index)
{
  return pd_list[index];
}


CORBA::Status
NVListImpl::remove(CORBA::ULong index)
{
  // operator[] on the sequence will do the bounds check for us here
  CORBA::release(pd_list[index]);

  for( CORBA::ULong i = index; i < pd_list.length() - 1; i++ )
    pd_list[i] = pd_list[i + 1];

  pd_list.length(pd_list.length() - 1);
  RETURN_CORBA_STATUS;
}


CORBA::Boolean
NVListImpl::NP_is_nil() const
{
  return 0;
}


CORBA::NVList_ptr
NVListImpl::NP_duplicate()
{
  incrRefCount();
  return this;
}

//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////

class NilNVList : public CORBA::NVList {
public:
  virtual CORBA::ULong count() const {
    _CORBA_invoked_nil_pseudo_ref();
    return 0;
  }
  virtual CORBA::NamedValue_ptr add(CORBA::Flags) {
    _CORBA_invoked_nil_pseudo_ref();
    return CORBA::NamedValue::_nil();
  }
  virtual CORBA::NamedValue_ptr add_item(const char*, CORBA::Flags) {
    _CORBA_invoked_nil_pseudo_ref();
    return CORBA::NamedValue::_nil();
  }
  virtual CORBA::NamedValue_ptr add_value(const char*, const CORBA::Any&,
					  CORBA::Flags) {
    _CORBA_invoked_nil_pseudo_ref();
    return CORBA::NamedValue::_nil();
  }
  virtual CORBA::NamedValue_ptr add_item_consume(char*, CORBA::Flags) {
    _CORBA_invoked_nil_pseudo_ref();
    return CORBA::NamedValue::_nil();
  }
  virtual CORBA::NamedValue_ptr add_value_consume(char*, CORBA::Any*,
						  CORBA::Flags) {
    _CORBA_invoked_nil_pseudo_ref();
    return CORBA::NamedValue::_nil();
  }
  virtual CORBA::NamedValue_ptr item(CORBA::ULong) {
    _CORBA_invoked_nil_pseudo_ref();
    return CORBA::NamedValue::_nil();
  }
  virtual CORBA::Status remove(CORBA::ULong) {
    _CORBA_invoked_nil_pseudo_ref();
    RETURN_CORBA_STATUS;
  }
  virtual CORBA::Boolean NP_is_nil() const {
    return 1;
  }
  virtual CORBA::NVList_ptr NP_duplicate() {
    return _nil();
  }
};

static NilNVList _nilNVList;

//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////

CORBA::NVList::~NVList() {}


CORBA::NVList_ptr
CORBA::
NVList::_duplicate(NVList_ptr p)
{
  if( p )  return p->NP_duplicate();
  else     return _nil();
}


CORBA::NVList_ptr
CORBA::
NVList::_nil()
{
  return &_nilNVList;
}

//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////

void
CORBA::release(NVList_ptr p)
{
  if( !p->NP_is_nil() )
    ((NVListImpl*)p)->decrRefCount();
}


CORBA::Status
CORBA::
ORB::create_list(Long count, NVList_out new_list)
{
  new_list = new NVListImpl();

  for( Long i = 0; i < count; i++ )
    new_list._data->add(CORBA::Flags(0));

  RETURN_CORBA_STATUS;
}


CORBA::Status
CORBA::
ORB::create_operation_list(OperationDef_ptr p, NVList_out new_list)
{
  new_list = NVList::_nil();

  throw NO_IMPLEMENT(0, CORBA::COMPLETED_NO);

#ifdef NEED_DUMMY_RETURN
  RETURN_CORBA_STATUS;
#endif
}
