Bounded_Valuetype_Sequence_T.h

Go to the documentation of this file.

#ifndef guard_bounded_valuetype_sequence_hpp
#define guard_bounded_valuetype_sequence_hpp
/**
 * @file
 *
 * @brief Implement bounded sequences for object references.
 *
 * $Id: Bounded_Valuetype_Sequence_T.h 90386 2010-06-02 13:52:08Z vzykov $
 *
 * @author Carlos O'Ryan
 */
#include "Bounded_Valuetype_Allocation_Traits_T.h"
#include "Valuetype_Traits_T.h"
#include "tao/Generic_Sequence_T.h"
#include "Valuetype_Sequence_Element_T.h"
#include "tao/MM_Sequence_Iterator_T.h"
#include "tao/Bounded_Reference_Allocation_Traits_T.h"

TAO_BEGIN_VERSIONED_NAMESPACE_DECL

namespace TAO
{

template<typename object_t, typename object_t_var, CORBA::ULong MAX>
class bounded_valuetype_sequence
{
public:
  typedef object_t object_type;
  typedef object_type * value_type;
  typedef value_type const const_value_type;
  typedef object_t_var object_type_var;
  typedef ::CORBA::ULong size_type;

  typedef details::valuetype_traits<object_type,object_type_var,true> element_traits;
  typedef details::bounded_reference_allocation_traits<value_type,element_traits,MAX,true> allocation_traits;

  typedef details::valuetype_sequence_element<element_traits> element_type;
  typedef element_type subscript_type;
  typedef value_type const & const_subscript_type;

  typedef details::generic_sequence<value_type, allocation_traits, element_traits> implementation_type;

  inline bounded_valuetype_sequence()
    : impl_()
  {}
  inline bounded_valuetype_sequence(
      CORBA::ULong length,
      value_type * data,
      CORBA::Boolean release)
    : impl_(MAX, length, data, release)
  {}

  /* Use default ctor, operator= and dtor */
  inline CORBA::ULong maximum() const {
    return impl_.maximum();
  }
  inline CORBA::Boolean release() const {
    return impl_.release();
  }
  inline CORBA::ULong length() const {
    return impl_.length();
  }

  inline void length(CORBA::ULong length) {
    implementation_type::range::check_length(length, MAX);
    impl_.length(length);
  }
  inline value_type const & operator[](CORBA::ULong i) const {
    return impl_[i];
  }
  inline element_type operator[](CORBA::ULong i) {
    return element_type(impl_[i], release());
  }
  inline value_type const * get_buffer() const {
    return impl_.get_buffer();
  }
  inline void replace(
      CORBA::ULong length,
      value_type * data,
      CORBA::Boolean release = false) {
    impl_.replace(MAX, length, data, release);
  }
  inline value_type * get_buffer(CORBA::Boolean orphan = false) {
    return impl_.get_buffer(orphan);
  }
  inline void swap(bounded_valuetype_sequence & rhs) throw() {
    impl_.swap(rhs.impl_);
  }

  static value_type * allocbuf(CORBA::ULong maximum)
  {
    return implementation_type::allocbuf(maximum);
  }
  static value_type * allocbuf()
  {
    return implementation_type::allocbuf(MAX);
  }
  static void freebuf(value_type * buffer)
  {
    implementation_type::freebuf(buffer);
  }

#if defined TAO_HAS_SEQUENCE_ITERATORS && TAO_HAS_SEQUENCE_ITERATORS == 1

  ///
  /// Additions to support iterator semantics for TAO bounded value type
  /// sequences.
  ///

  // = Traits and factory methods that create iterators.
  typedef MM_Sequence_Iterator<bounded_valuetype_sequence<object_t, object_t_var, MAX> > iterator;
  typedef Const_MM_Sequence_Iterator<bounded_valuetype_sequence<object_t, object_t_var, MAX> > const_iterator;
  typedef MM_Sequence_Reverse_Iterator<bounded_valuetype_sequence<object_t, object_t_var, MAX> > reverse_iterator;
  typedef Const_MM_Sequence_Reverse_Iterator<bounded_valuetype_sequence<object_t, object_t_var, MAX> > const_reverse_iterator;

  // Get an iterator that points to the beginning of the sequence.
  inline iterator begin (void)
  {
    return iterator (&this->impl_);
  }

  // Get a const iterator that points to the beginning of the sequence.
  inline const_iterator begin (void) const
  {
    return const_iterator (&this->impl_);
  }

  // Get an iterator that points to the end of the sequence.
  inline iterator end (void)
  {
    return iterator (&this->impl_,
                     this->impl_.length ());
  }

  // Get a const iterator that points to the end of the sequence.
  inline const_iterator end (void) const
  {
    return const_iterator (&this->impl_,
                           this->impl_.length ());
  }

  // Get a reverse iterator that points to the end of the sequence.
  inline reverse_iterator rbegin (void)
  {
    return reverse_iterator (&this->impl_,
                             this->impl_.length () - 1);
  }

  // Get a const reverse iterator that points to the end of the sequence.
  inline const_reverse_iterator rbegin (void) const
  {
    return const_reverse_iterator (&this->impl_,
                                   this->impl_.length () - 1);
  }

  // Get a reverse iterator that points to one before the beginning
  // of the sequence.
  inline reverse_iterator rend (void)
  {
    return reverse_iterator (&this->impl_,
                             -1);
  }

  // Get a const reverse iterator that points to one before the
  // beginning of the sequence.
  inline const_reverse_iterator rend (void) const
  {
    return const_reverse_iterator (&this->impl_,
                                   -1);
  }

#endif /* TAO_HAS_SEQUENCE_ITERATORS==1 */


private:
  implementation_type impl_;
};


  template <typename stream, typename object_t, typename object_t_var, CORBA::ULong MAX>
  bool marshal_sequence(stream & strm, const TAO::bounded_valuetype_sequence<object_t, object_t_var, MAX> & source) {

    const ::CORBA::ULong length = source.length ();
    if (length > source.maximum () || !(strm << length)) {
      return false;
    }
    for(CORBA::ULong i = 0; i < length; ++i) {
      if (!(strm << source[i])) {
        return false;
      }
    }
    return true;
  }

  template <typename stream, typename object_t, typename object_t_var, CORBA::ULong MAX>
  bool demarshal_sequence(stream & strm, TAO::bounded_valuetype_sequence<object_t, object_t_var, MAX> & target) {
    typedef TAO::bounded_valuetype_sequence<object_t, object_t_var, MAX> sequence;
    typedef typename sequence::allocation_traits sequence_allocation_traits;
    ::CORBA::ULong new_length = 0;
    if (!(strm >> new_length)) {
      return false;
    }
    if ((new_length > strm.length()) || (new_length > target.maximum ())) {
        return false;
    }
    sequence tmp(new_length,
                 sequence_allocation_traits::allocbuf_noinit(new_length),
                 true);
    typename sequence::value_type * buffer = tmp.get_buffer();
    for(CORBA::ULong i = 0; i < new_length; ++i) {
      if (!(strm >> buffer[i])) {
        return false;
      }
    }
    tmp.swap(target);
    return true;
  }

} // namespace TAO

TAO_END_VERSIONED_NAMESPACE_DECL


#endif // guard_bounded_valuetype_sequence_hpp