asner.cxx

开源代码的pwlib的1.10.0版本,使用openh323的1.18.0版本毕备

  namesCount = other.namesCount;

  if (other.CheckCreate())
    choice = (PASN_Object *)other.choice->Clone();
  else
    choice = NULL;

  return *this;
}


PASN_Choice::~PASN_Choice()
{
  delete choice;
}


void PASN_Choice::SetTag(unsigned newTag, TagClass tagClass)
{
  PASN_Object::SetTag(newTag, tagClass);

  delete choice;

  if (CreateObject())
    choice->SetTag(newTag, tagClass);
}


PString PASN_Choice::GetTagName() const
{
  PINDEX idx = FindNameByValue(names, namesCount, tag);
  if (idx != P_MAX_INDEX)
    return names[idx].name;

  if (CheckCreate() &&
      PIsDescendant(choice, PASN_Choice) &&
      choice->GetTag() == tag &&
      choice->GetTagClass() == tagClass)
    return PString(choice->GetClass()) + "->" + ((PASN_Choice *)choice)->GetTagName();

  return psprintf("<%u>", tag);
}


BOOL PASN_Choice::CheckCreate() const
{
  if (choice != NULL)
    return TRUE;

  return ((PASN_Choice *)this)->CreateObject();
}


PASN_Object & PASN_Choice::GetObject() const
{
  PAssert(CheckCreate(), "NULL Choice");
  return *choice;
}


#if defined(__GNUC__) && __GNUC__ <= 2 && __GNUC_MINOR__ < 9

#define CHOICE_CAST_OPERATOR(cls) \
  PASN_Choice::operator cls &() const \
  { \
    PAssert(CheckCreate(), "Cast of NULL choice"); \
    PAssert(choice->IsDescendant(cls::Class()), PInvalidCast); \
    return *(cls *)choice; \
  } \

#else

#define CHOICE_CAST_OPERATOR(cls) \
  PASN_Choice::operator cls &() \
  { \
    PAssert(CheckCreate(), "Cast of NULL choice"); \
    PAssert(PIsDescendant(choice, cls), PInvalidCast); \
    return *(cls *)choice; \
  } \
  PASN_Choice::operator const cls &() const \
  { \
    PAssert(CheckCreate(), "Cast of NULL choice"); \
    PAssert(PIsDescendant(choice, cls), PInvalidCast); \
    return *(const cls *)choice; \
  } \

#endif


CHOICE_CAST_OPERATOR(PASN_Null)
CHOICE_CAST_OPERATOR(PASN_Boolean)
CHOICE_CAST_OPERATOR(PASN_Integer)
CHOICE_CAST_OPERATOR(PASN_Enumeration)
CHOICE_CAST_OPERATOR(PASN_Real)
CHOICE_CAST_OPERATOR(PASN_ObjectId)
CHOICE_CAST_OPERATOR(PASN_BitString)
CHOICE_CAST_OPERATOR(PASN_OctetString)
CHOICE_CAST_OPERATOR(PASN_NumericString)
CHOICE_CAST_OPERATOR(PASN_PrintableString)
CHOICE_CAST_OPERATOR(PASN_VisibleString)
CHOICE_CAST_OPERATOR(PASN_IA5String)
CHOICE_CAST_OPERATOR(PASN_GeneralString)
CHOICE_CAST_OPERATOR(PASN_BMPString)
CHOICE_CAST_OPERATOR(PASN_Sequence)


PObject::Comparison PASN_Choice::Compare(const PObject & obj) const
{
  PAssert(PIsDescendant(&obj, PASN_Choice), PInvalidCast);
  const PASN_Choice & other = (const PASN_Choice &)obj;

  CheckCreate();
  other.CheckCreate();

  if (choice == other.choice)
    return EqualTo;

  if (choice == NULL)
    return LessThan;

  if (other.choice == NULL)
    return GreaterThan;

  if (tag < other.tag)
    return LessThan;

  if (tag > other.tag)
    return GreaterThan;

  return choice->Compare(*other.choice);
}


void PASN_Choice::PrintOn(ostream & strm) const
{
  strm << GetTagName();

  if (choice != NULL)
    strm << ' ' << *choice;
  else
    strm << " (NULL)";
}


PString PASN_Choice::GetTypeAsString() const
{
  return "Choice";
}


PINDEX PASN_Choice::GetDataLength() const
{
  if (CheckCreate())
    return choice->GetDataLength();

  return 0;
}


BOOL PASN_Choice::IsPrimitive() const
{
  if (CheckCreate())
    return choice->IsPrimitive();
  return FALSE;
}


BOOL PASN_Choice::Decode(PASN_Stream & strm)
{
  return strm.ChoiceDecode(*this);
}


void PASN_Choice::Encode(PASN_Stream & strm) const
{
  strm.ChoiceEncode(*this);
}


PINDEX PASN_Choice::GetValueByName(PString name) const
{
  for(unsigned uiIndex = 0; uiIndex < numChoices; uiIndex++){
    if(strcmp(names[uiIndex].name, name) == 0){
      return names[uiIndex].value;
    }
  }
  return UINT_MAX;
}
///////////////////////////////////////////////////////////////////////

PASN_Sequence::PASN_Sequence(unsigned tag, TagClass tagClass,
                             unsigned nOpts, BOOL extend, unsigned nExtend)
  : PASN_Object(tag, tagClass, extend)
{
  optionMap.SetConstraints(PASN_ConstrainedObject::FixedConstraint, nOpts);
  knownExtensions = nExtend;
  totalExtensions = 0;
  endBasicEncoding = 0;
}


PASN_Sequence::PASN_Sequence(const PASN_Sequence & other)
  : PASN_Object(other),
    fields(other.fields.GetSize()),
    optionMap(other.optionMap),
    extensionMap(other.extensionMap)
{
  for (PINDEX i = 0; i < other.fields.GetSize(); i++)
    fields.SetAt(i, other.fields[i].Clone());

  knownExtensions = other.knownExtensions;
  totalExtensions = other.totalExtensions;
  endBasicEncoding = 0;
}


PASN_Sequence & PASN_Sequence::operator=(const PASN_Sequence & other)
{
  PASN_Object::operator=(other);

  fields.SetSize(other.fields.GetSize());
  for (PINDEX i = 0; i < other.fields.GetSize(); i++)
    fields.SetAt(i, other.fields[i].Clone());

  optionMap = other.optionMap;
  knownExtensions = other.knownExtensions;
  totalExtensions = other.totalExtensions;
  extensionMap = other.extensionMap;

  return *this;
}


BOOL PASN_Sequence::HasOptionalField(PINDEX opt) const
{
  if (opt < (PINDEX)optionMap.GetSize())
    return optionMap[opt];
  else
    return extensionMap[opt - optionMap.GetSize()];
}


void PASN_Sequence::IncludeOptionalField(PINDEX opt)
{
  if (opt < (PINDEX)optionMap.GetSize())
    optionMap.Set(opt);
  else {
    PAssert(extendable, "Must be extendable type");
    opt -= optionMap.GetSize();
    if (opt >= (PINDEX)extensionMap.GetSize())
      extensionMap.SetSize(opt+1);
    extensionMap.Set(opt);
  }
}


void PASN_Sequence::RemoveOptionalField(PINDEX opt)
{
  if (opt < (PINDEX)optionMap.GetSize())
    optionMap.Clear(opt);
  else {
    PAssert(extendable, "Must be extendable type");
    opt -= optionMap.GetSize();
    extensionMap.Clear(opt);
  }
}


PObject::Comparison PASN_Sequence::Compare(const PObject & obj) const
{
  PAssert(PIsDescendant(&obj, PASN_Sequence), PInvalidCast);
  const PASN_Sequence & other = (const PASN_Sequence &)obj;
  return fields.Compare(other.fields);
}


PObject * PASN_Sequence::Clone() const
{
  PAssert(IsClass(PASN_Sequence::Class()), PInvalidCast);
  return new PASN_Sequence(*this);
}


void PASN_Sequence::PrintOn(ostream & strm) const
{
  int indent = strm.precision() + 2;
  strm << "{\n";
  for (PINDEX i = 0; i < fields.GetSize(); i++) {
    strm << setw(indent+6) << "field[" << i << "] <";
    switch (fields[i].GetTagClass()) {
      case UniversalTagClass :
        strm << "Universal";
        break;
      case ApplicationTagClass :
        strm << "Application";
        break;
      case ContextSpecificTagClass :
        strm << "ContextSpecific";
        break;
      case PrivateTagClass :
        strm << "Private";
      default :
        break;
    }
    strm << '-' << fields[i].GetTag() << '-'
         << fields[i].GetTypeAsString() << "> = "
         << fields[i] << '\n';
  }
  strm << setw(indent-1) << "}";
}


PString PASN_Sequence::GetTypeAsString() const
{
  return "Sequence";
}


PINDEX PASN_Sequence::GetDataLength() const
{
  PINDEX len = 0;
  for (PINDEX i = 0; i < fields.GetSize(); i++)
    len += fields[i].GetObjectLength();
  return len;
}


BOOL PASN_Sequence::IsPrimitive() const
{
  return FALSE;
}


BOOL PASN_Sequence::Decode(PASN_Stream & strm)
{
  return PreambleDecode(strm) && UnknownExtensionsDecode(strm);
}


void PASN_Sequence::Encode(PASN_Stream & strm) const
{
  PreambleEncode(strm);
  UnknownExtensionsEncode(strm);
}


BOOL PASN_Sequence::PreambleDecode(PASN_Stream & strm)
{
  return strm.SequencePreambleDecode(*this);
}


void PASN_Sequence::PreambleEncode(PASN_Stream & strm) const
{
  strm.SequencePreambleEncode(*this);
}


BOOL PASN_Sequence::KnownExtensionDecode(PASN_Stream & strm, PINDEX fld, PASN_Object & field)
{
  return strm.SequenceKnownDecode(*this, fld, field);
}


void PASN_Sequence::KnownExtensionEncode(PASN_Stream & strm, PINDEX fld, const PASN_Object & field) const
{
  strm.SequenceKnownEncode(*this, fld, field);
}


BOOL PASN_Sequence::UnknownExtensionsDecode(PASN_Stream & strm)
{
  return strm.SequenceUnknownDecode(*this);
}


void PASN_Sequence::UnknownExtensionsEncode(PASN_Stream & strm) const
{
  strm.SequenceUnknownEncode(*this);
}


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

PASN_Set::PASN_Set(unsigned tag, TagClass tagClass,
                   unsigned nOpts, BOOL extend, unsigned nExtend)
  : PASN_Sequence(tag, tagClass, nOpts, extend, nExtend)
{
}


PObject * PASN_Set::Clone() const
{
  PAssert(IsClass(PASN_Set::Class()), PInvalidCast);
  return new PASN_Set(*this);
}


PString PASN_Set::GetTypeAsString() const
{
  return "Set";
}

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

PASN_Array::PASN_Array(unsigned tag, TagClass tagClass)
  : PASN_ConstrainedObject(tag, tagClass)
{
}


PASN_Array::PASN_Array(const PASN_Array & other)
  : PASN_ConstrainedObject(other),
    array(other.array.GetSize())
{
  for (PINDEX i = 0; i < other.array.GetSize(); i++)
    array.SetAt(i, other.array[i].Clone());
}


PASN_Array & PASN_Array::operator=(const PASN_Array & other)
{
  PASN_ConstrainedObject::operator=(other);

  array.SetSize(other.array.GetSize());
  for (PINDEX i = 0; i < other.array.GetSize(); i++)
    array.SetAt(i, other.array[i].Clone());

  return *this;
}


BOOL PASN_Array::SetSize(PINDEX newSize)
{
  if (newSize > MaximumArraySize)
    return FALSE;

  PINDEX originalSize = array.GetSize();
  if (!array.SetSize(newSize))
    return FALSE;

  for (PINDEX i = originalSize; i < newSize; i++) {
    PASN_Object * obj = CreateObject();
    if (obj == NULL)
      return FALSE;

    array.SetAt(i, obj);
  }

  return TRUE;
}


PObject::Comparison PASN_Array::Compare(const PObject & obj) const
{
  PAssert(PIsDescendant(&obj, PASN_Array), PInvalidCast);
  const PASN_Array & other = (const PASN_Array &)obj;
  return array.Compare(other.array);
}


void PASN_Array::PrintOn(ostream & strm) const
{
  int indent = strm.precision() + 2;
  strm << array.GetSize() << " entries {\n";
  for (PINDEX i = 0; i < array.GetSize(); i++)
    strm << setw(indent+1) << "[" << i << "]=" << setprecision(indent) << array[i] << '\n';
  strm << setw(indent-1) << "}";
}


void PASN_Array::SetConstraintBounds(ConstraintType type, int lower, unsigned upper)
{
  if (lower < 0)
    return;

  PASN_ConstrainedObject::SetConstraintBounds(type, lower, upper);
  if (constraint != Unconstrained) {
    if (GetSize() < (PINDEX)lowerLimit)
      SetSize(lowerLimit);
    else if (GetSize() > (PINDEX)upperLimit)
      SetSize(upperLimit);
  }
}


PString PASN_Array::GetTypeAsString() const
{
  return "Array";
}


PINDEX PASN_Array::GetDataLength() const
{
  PINDEX len = 0;
  for (PINDEX i = 0; i < array.GetSize(); i++)
    len += array[i].GetObjectLength();
  return len;
}


BOOL PASN_Array::IsPrimitive() const
{
  return FALSE;
}


BOOL PASN_Array::Decode(PASN_Stream & strm)
{
  return strm.ArrayDecode(*this);
}


void PASN_Array::Encode(PASN_Stream & strm) const
{
  strm.ArrayEncode(*this);
}


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