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|
// -*- C++ -*-
// $Id$
#include "tao/DynamicAny/DynValue_i.h"
#include "tao/DynamicAny/DynAnyFactory.h"
#include "tao/DynamicAny/DynAnyUtils_T.h"
#include "tao/AnyTypeCode/Marshal.h"
#include "tao/AnyTypeCode/Any_Unknown_IDL_Type.h"
#include "tao/AnyTypeCode/AnyTypeCode_methods.h"
#include "tao/CDR.h"
#include "tao/Valuetype/ValueBase.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_DynValue_i::TAO_DynValue_i (CORBA::Boolean allow_truncation)
: TAO_DynCommon (allow_truncation)
, TAO_DynAny_i (allow_truncation)
, TAO_DynValueCommon_i (allow_truncation)
{
}
TAO_DynValue_i::~TAO_DynValue_i (void)
{
}
void
TAO_DynValue_i::init (const CORBA::Any & any)
{
this->init_helper (any._tao_get_typecode ());
this->from_any_helper (any);
// init() is called only from DynAnyFactory create_*
// methods. These are the only functions that can
// throw MustTruncate, so once init () has completed
// revert to always allowing truncation.
this->allow_truncation_ = true;
}
void
TAO_DynValue_i::init (CORBA::TypeCode_ptr tc, TAO_InputCDR &in)
{
this->init_helper (tc);
this->from_inputCDR (in);
// init() is called only from DynAnyFactory create_*
// methods. These are the only functions that can
// throw MustTruncate, so once init () has completed
// revert to always allowing truncation.
this->allow_truncation_ = true;
}
void
TAO_DynValue_i::init (CORBA::TypeCode_ptr tc)
{
this->init_helper (tc);
// Each member is now (recursively) set-up
// with its own correct typecode.
for (CORBA::ULong i = 0u;
i < this->component_count_;
++i)
{
CORBA::TypeCode_var
member_type (
get_member_type (this->da_base_types_, i));
this->da_members_[i] = TAO::MakeDynAnyUtils::
make_dyn_any_t<CORBA::TypeCode_ptr>
(member_type.in (), member_type.in (), this->allow_truncation_);
}
this->set_to_null ();
// init() is called only from DynAnyFactory create_*
// methods. These are the only functions that can
// throw MustTruncate, so once init () has completed
// revert to always allowing truncation.
this->allow_truncation_ = true;
}
void
TAO_DynValue_i::init_helper (CORBA::TypeCode_ptr tc)
{
// Ensure we have been given a valid ValueType
// typecode and then store a copy of the original.
this->check_typecode (tc);
this->type_ = CORBA::TypeCode::_duplicate (tc);
// Work out how many total members and types there
// are in total in this derived->base hiarchy.
get_base_types (
tc,
this->da_base_types_,
&this->component_count_);
this->da_members_.size (this->component_count_);
// And initalize all of the DynCommon mix-in
this->init_common ();
}
void
TAO_DynValue_i::get_base_types (
CORBA::TypeCode_ptr tc,
BaseTypesList_t &base_types,
CORBA::ULong *total_member_count)
{
// First initalize to the fully derived type we are
// starting with.
CORBA::ULong numberOfBases = 1u;
base_types.size (numberOfBases);
base_types[0] = TAO_DynAnyFactory::strip_alias (tc);
if (total_member_count)
{
*total_member_count =
base_types[0]->member_count ();
}
// Obtain each derived type's basetype and add this to
// the list.
CORBA::TypeCode_var
base (base_types[0]->concrete_base_type());
while (base.in() &&
CORBA::tk_value ==
(base= // assignment
TAO_DynAnyFactory::strip_alias (base.in()))
->kind ())
{
if (total_member_count)
{
*total_member_count += base->member_count ();
}
base_types.size (numberOfBases + 1);
base_types[numberOfBases++] =
CORBA::TypeCode::_duplicate (base.in ());
base = base->concrete_base_type();
}
}
CORBA::TypeCode_ptr
TAO_DynValue_i::get_correct_base_type (
const BaseTypesList_t &base_types,
CORBA::ULong &index)
{
// We work backwards through the list of derived types,
// so index 0 is the first member of the extreme base type
// (assuming it has any members) once we run out of that
// base types members we move up the list to the next
// derived type until that type's members are exhausted
// and so on until we reach the member we have asked for.
CORBA::ULong
currentBase = base_types.size ();
if (!currentBase)
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::get_correct_base_type () ")
ACE_TEXT ("BaseTypesList_t is not initialised\n")));
return 0;
}
while (base_types[--currentBase]->member_count () <= index)
{
index -= base_types[currentBase]->member_count ();
if (!currentBase)
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::get_correct_base_type () ")
ACE_TEXT ("BaseTypesList_t is not large enough\n")));
return 0;
}
}
// Note that the "index" has now been reduced to the range
// of the returning base_type.
return base_types[currentBase].in ();
}
CORBA::TypeCode_ptr
TAO_DynValue_i::get_member_type (
const BaseTypesList_t &base_types,
CORBA::ULong index)
{
const CORBA::TypeCode_ptr
base = get_correct_base_type (base_types, index);
return base->member_type (index);
}
const char *
TAO_DynValue_i::get_member_name (
const BaseTypesList_t &base_types,
CORBA::ULong index)
{
const CORBA::TypeCode_ptr
base = get_correct_base_type (base_types, index);
return base->member_name (index);
}
void
TAO_DynValue_i::set_to_value (void)
{
this->component_count_ =
static_cast <CORBA::ULong> (this->da_members_.size ());
this->current_position_ =
this->component_count_ ? 0 : -1;
this->is_null_ = false;
}
void
TAO_DynValue_i::check_typecode (CORBA::TypeCode_ptr tc)
{
if (CORBA::tk_value == TAO_DynAnyFactory::unalias (tc))
{
return;
}
throw DynamicAny::DynAnyFactory::InconsistentTypeCode ();
}
TAO_DynValue_i *
TAO_DynValue_i::_narrow (CORBA::Object_ptr _tao_objref)
{
return (CORBA::is_nil (_tao_objref)) ?
0 :
dynamic_cast<TAO_DynValue_i *> (_tao_objref);
}
DynamicAny::FieldName
TAO_DynValue_i::current_member_name (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
if (-1 == this->current_position_)
{
throw DynamicAny::DynAny::InvalidValue ();
}
return CORBA::string_dup (
this->get_member_name (
this->da_base_types_,
this->current_position_));
}
CORBA::TCKind
TAO_DynValue_i::current_member_kind (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
if (-1 == this->current_position_)
{
throw DynamicAny::DynAny::InvalidValue ();
}
CORBA::TypeCode_var tc (
get_member_type (
this->da_base_types_,
this->current_position_));
return TAO_DynAnyFactory::unalias (tc.in ());
}
DynamicAny::NameValuePairSeq *
TAO_DynValue_i::get_members (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
// Create the return NameValuePairSeq
DynamicAny::NameValuePairSeq *members = 0;
ACE_NEW_THROW_EX (
members,
DynamicAny::NameValuePairSeq (this->component_count_),
CORBA::NO_MEMORY ());
members->length (this->component_count_);
DynamicAny::NameValuePairSeq_var
safe_retval (members);
// Assign member name and value to each slot.
for (CORBA::ULong i = 0u;
i < this->component_count_;
++i)
{
safe_retval[i].id = CORBA::string_dup (
this->get_member_name (this->da_base_types_, i));
CORBA::Any_var
temp (this->da_members_[i]->to_any ());
safe_retval[i].value = temp.in ();
}
return safe_retval._retn ();
}
void
TAO_DynValue_i::set_members (
const DynamicAny::NameValuePairSeq &values)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
// Check lengths match.
const CORBA::ULong length = values.length ();
if (length !=
static_cast <CORBA::ULong>
(this->da_members_.size ()))
{
throw DynamicAny::DynAny::InvalidValue ();
}
// Check each member typecodes match.
CORBA::ULong i;
for (i = 0u; i < length; ++i)
{
CORBA::TypeCode_var my_member (
get_member_type (this->da_base_types_, i));
CORBA::TypeCode_var value_member (
values[i].value.type ());
if (!my_member->equivalent (value_member.in ()))
{
throw DynamicAny::DynAny::TypeMismatch ();
}
}
// Copy in the new values to each member ()
for (i = 0u; i < length; ++i)
{
this->da_members_[i] = TAO::MakeDynAnyUtils::
make_dyn_any_t<const CORBA::Any&> (
values[i].value._tao_get_typecode (),
values[i].value,
this->allow_truncation_);
}
this->set_to_value ();
}
DynamicAny::NameDynAnyPairSeq *
TAO_DynValue_i::get_members_as_dyn_any (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
// Create the return NameDynAnyPairSeq
DynamicAny::NameDynAnyPairSeq *members = 0;
ACE_NEW_THROW_EX (
members,
DynamicAny::NameDynAnyPairSeq (this->component_count_),
CORBA::NO_MEMORY ());
members->length (this->component_count_);
DynamicAny::NameDynAnyPairSeq_var
safe_retval (members);
// Assign name and value to each pearl on the string.
for (CORBA::ULong i = 0u;
i < this->component_count_;
++i)
{
safe_retval[i].id = CORBA::string_dup (
this->get_member_name (this->da_base_types_, i));
// A deep copy is made only by copy()
// (CORBA 2.4.2 section 9.2.3.6).
// Set the flag so the caller can't destroy.
this->set_flag (this->da_members_[i].in (), 0);
safe_retval[i].value =
DynamicAny::DynAny::_duplicate (
this->da_members_[i].in ());
}
return safe_retval._retn ();
}
void
TAO_DynValue_i::set_members_as_dyn_any (
const DynamicAny::NameDynAnyPairSeq & values)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
// Check lengths match.
CORBA::ULong length = values.length ();
if (length !=
static_cast <CORBA::ULong> (
this->da_members_.size ()))
{
throw DynamicAny::DynAny::InvalidValue ();
}
// Check each member typecodes match.
CORBA::ULong i = 0u;
for (; i < length; ++i)
{
CORBA::TypeCode_var
my_member (
get_member_type (this->da_base_types_, i)),
value_member (
values[i].value->type ());
if (!my_member->equivalent (value_member.in ()))
{
throw DynamicAny::DynAny::TypeMismatch ();
}
}
// Copy in the new values to each member ()
for (i = 0u; i < length; ++i)
{
this->da_members_[i] = values[i].value->copy ();
}
this->set_to_value ();
}
void
TAO_DynValue_i::from_any (const CORBA::Any &any)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
CORBA::TypeCode_var
tc (any.type ());
if (!this->type_->equivalent (tc.in ()))
{
throw DynamicAny::DynAny::TypeMismatch ();
}
this->from_any_helper (any);
}
CORBA::Boolean
TAO_DynValue_i::equal (DynamicAny::DynAny_ptr rhs)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
CORBA::TypeCode_var tc (rhs->type ());
if (!tc->equivalent (this->type_.in ()) ||
this->component_count_ !=
rhs->component_count () )
{
return false;
}
TAO_DynValue_i *rhs_v=
dynamic_cast<TAO_DynValue_i *> (rhs);
if (!rhs_v || this->is_null () != rhs_v->is_null ())
{
return false;
}
if (!this->is_null ())
{
for (CORBA::ULong i = 0u;
i < this->component_count_;
++i)
{
if (!rhs_v->da_members_[i]
->equal (this->da_members_[i].in ()))
{
return false;
}
}
}
return true;
}
void
TAO_DynValue_i::destroy (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
if (!this->ref_to_component_ ||
this->container_is_destroying_)
{
// Do a deep destroy.
this->component_count_ =
static_cast <CORBA::ULong> (
this->da_members_.size () );
for (CORBA::ULong i = 0u;
i < this->component_count_;
++i)
{
this->set_flag (da_members_[i].in (), 1);
this->da_members_[i]->destroy ();
}
this->destroyed_ = 1;
}
}
DynamicAny::DynAny_ptr
TAO_DynValue_i::current_component (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
if (-1 == this->current_position_)
{
return DynamicAny::DynAny::_nil ();
}
const CORBA::ULong index =
static_cast <CORBA::ULong> (this->current_position_);
this->set_flag (this->da_members_[index].in (), 0);
return DynamicAny::DynAny::_duplicate (
this->da_members_[index].in () );
}
// Overrides TAO_DynCommon::insert_val (). Since we ARE
// a ValueType, it does not make sense to pass the value
// type input down to the current_component to deal with
// (even though we are a constructed type and should do
// so with any other type of input). If we don't assume
// the value type is for us, it will get passed down
// (recursivly) to the terminal non-valuetype member
// which then will be wrong type for the valuetype input
// we started with.
void
TAO_DynValue_i::insert_val (CORBA::ValueBase *value)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
// If the arg is 0 we can't do this kind of type
// checking, and the call to _tao_marshal() below
// will handle the null value correctly in any case.
if (value)
{
const char
*value_id = value->_tao_obv_repository_id (),
*my_id = this->type_->id ();
// Valuetypes, unlike interfaces, don't have a
// virtual method to check for a more derived
// type when the repo ids don't match. Valuetypes
// have only a static _downcast() method, which
// can't be used here, so if the repo ids don't
// match, we're hosed.
if (ACE_OS::strcmp (value_id, my_id))
{
throw DynamicAny::DynAny::TypeMismatch ();
}
}
// This will handle null values correctly, or
// otherwise make a virtual call to marshal the state.
TAO_OutputCDR out;
if (!CORBA::ValueBase::_tao_marshal (out, value))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::insert_val ")
ACE_TEXT ("can not marshal value\n") ));
throw DynamicAny::DynAny::InvalidValue ();
}
TAO_InputCDR in (out);
this->from_inputCDR (in);
}
// Overrides TAO_DynCommon::get_val (). Since we ARE
// a ValueType, it does not make sense to pass the get
// request down to the current_component to deal with
// (even though we are a constructed type and should
// do so with any other type of output). If we don't
// assume the value type is us, it will get passed down
// (recursivly) to the terminal non-valuetype member
// which then will be wrong type for the valuetype
// output we want.
CORBA::ValueBase *
TAO_DynValue_i::get_val (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
// Convert this value into an output stream
TAO_OutputCDR out_cdr;
this->to_outputCDR (out_cdr);
// Now read in this stream to create the actual value.
TAO_InputCDR for_reading (out_cdr);
CORBA::ValueBase *retval = 0;
if (!CORBA::ValueBase::_tao_unmarshal (
for_reading, retval ))
{
throw DynamicAny::DynAny::InvalidValue ();
}
return retval;
}
CORBA::Any_ptr
TAO_DynValue_i::to_any (void)
{
if (this->destroyed_)
{
throw ::CORBA::OBJECT_NOT_EXIST ();
}
// First create the value as an output stream
TAO_OutputCDR out_cdr;
this->to_outputCDR (out_cdr);
// Convert the out_cdr into a new any.
TAO_InputCDR in_cdr (out_cdr);
TAO::Unknown_IDL_Type *unk = 0;
ACE_NEW_THROW_EX (
unk,
TAO::Unknown_IDL_Type (this->type_.in (), in_cdr),
CORBA::NO_MEMORY () );
CORBA::Any_ptr retval = 0;
ACE_NEW_THROW_EX (
retval,
CORBA::Any,
CORBA::NO_MEMORY ());
retval->replace (unk);
return retval;
}
// This code is common to from_any() and the init(any).
// Basically the type information for our DynValue has
// already been set-up, we are now just copying the any
// value into our type.
void
TAO_DynValue_i::from_any_helper (const CORBA::Any & any)
{
// Get the CDR stream of the Any, if there isn't one,
// make one by marshalling the value into a new stream.
TAO_OutputCDR out;
TAO_InputCDR in (static_cast<ACE_Message_Block *> (0));
TAO::Any_Impl *impl = any.impl ();
if (impl->encoded ())
{
TAO::Unknown_IDL_Type *unk =
dynamic_cast<TAO::Unknown_IDL_Type *> (impl);
if (!unk)
{
throw CORBA::INTERNAL ();
}
in = unk->_tao_get_cdr ();
}
else
{
impl->marshal_value (out);
TAO_InputCDR tmp_in (out);
in = tmp_in;
}
this->from_inputCDR (in);
}
void
TAO_DynValue_i::to_outputCDR (TAO_OutputCDR &out_cdr)
{
// Is this an NULL Valuetype? If so we need to
// output the special NULL value type header.
// Note that we don't actually have a CORBA::ValueBase *
// which this call expects as we are actually dealing
// with DynValue * instead. However the pointer isn't
// actually dereferanced by the _tao_write_special_value()
// call, its address (as a void *) is just used to
// check for the null value and any previous writen
// value for the indirection header and the saving of
// this current location for this new valuetype if it
// is not indirected (this time).
if (!CORBA::ValueBase::_tao_write_special_value (
out_cdr,
reinterpret_cast <CORBA::ValueBase *>
(this->is_null_ ? 0 : this) ))
{
// OK since a special_value hasn't been written we are
// NOT a NULL or indirect ValueType. We need to create
// a normal valuetype header, which states if chunking
// is being used and if CodeBaseURL and type information
// ((none, single or list of) repository id(s)) is being
// provided. TAO NEVER sends a codebase URL and ALWAYS
// lists the full list of repository ids that are
// VM_TRUNCATABLE.
CORBA::Long valuetag =
TAO_OBV_GIOP_Flags::Value_tag_base |
TAO_OBV_GIOP_Flags::Type_info_single;
const CORBA::ULong num_ids = this->da_base_types_.size ();
CORBA::ULong trunc_ids;
for (trunc_ids= 0u; trunc_ids < num_ids - 1u; ++trunc_ids)
{
if (CORBA::VM_TRUNCATABLE !=
this->da_base_types_[trunc_ids]->type_modifier ())
{
break; // Found the first type that is not truncatable
}
}
++trunc_ids; // Include non-truncatable id that stopped us.
if (1u < trunc_ids)
{
valuetag |=
TAO_OBV_GIOP_Flags::Type_info_list;
}
CORBA::Boolean we_are_chunking = (1u < trunc_ids);
if (!we_are_chunking)
{
for (CORBA::ULong i= trunc_ids - 1u; i < num_ids; ++i)
{
if (CORBA::VM_CUSTOM ==
this->da_base_types_[i]->type_modifier ())
{
we_are_chunking = true;
break;
}
}
}
if (we_are_chunking)
{
valuetag |=
TAO_OBV_GIOP_Flags::Chunking_tag_sigbits;
}
// Start writing out the value header (and if
// necessary, the number of repo_ids we are
// going to write).
if (!out_cdr.write_long (valuetag) ||
(1u < trunc_ids && !out_cdr.write_ulong (trunc_ids)) )
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::to_outputCDR() ")
ACE_TEXT ("problem writing <value-tag> header\n")));
throw CORBA::INTERNAL ();
}
// Marshal out the list of repo_ids we are sending from
// the most derived type_id to the most base type_id in
// order. NOTE these type_ids are the real / full /
// non-dealliased versions not the dealliased ones that
// are stored in the da_base_types_[] list.
CORBA::ULong i= 0u;
for (CORBA::TypeCode_var
next (CORBA::TypeCode::_duplicate (this->type_.in ()));
i < trunc_ids;
++i)
{
ACE_CString repo_id (next->id ());
if (!CORBA::ValueBase::
_tao_write_repository_id (out_cdr, repo_id) )
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::to_outputCDR() ")
ACE_TEXT ("problem writing header repo_ids\n")));
throw CORBA::INTERNAL ();
}
// Using the dealliased tc for this current type, find
// the next non-dealliased base typecode.
next = this->da_base_types_[i]->concrete_base_type ();
}
// Write out the start chunking markers for the number
// of base types we are writing. If we are not a truncatable
// type there are none to write (i.e. we are writing one
// less than the trunc_ids we actually have).
TAO_ChunkInfo ci (we_are_chunking);
for (i= 0u; i < trunc_ids - 1u; ++i)
{
if (!ci.start_chunk (out_cdr))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::to_outputCDR() ")
ACE_TEXT ("problem writing basetype start chucks\n")));
throw CORBA::INTERNAL ();
}
}
// Now write out every member's value (add further chunking
// marks for each seporate base-type's state).
CORBA::Boolean need_first = true;
CORBA::ULong
currentBase= num_ids, // Note NOT just the trunc_ids
currentBaseMember = 0u;
for (CORBA::ULong currentMember= 0u;
currentMember < this->component_count_;
++currentMember)
{
// Are we starting a new base-type
if (!currentBaseMember)
{
// Move on to the next derived type in the
// list of our type hyarchy
while (!this->da_base_types_[--currentBase]
->member_count ())
{
// Skipping over all types that have no
// state (i.e. no members to write).
}
if (currentBase < trunc_ids || need_first)
{
need_first = false;
// Start chunk for this base-type's STATE
if (!ci.start_chunk (out_cdr))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::to_outputCDR() ")
ACE_TEXT ("problem writing base-type ")
ACE_TEXT ("%u state start chuck\n"),
currentBase ));
throw CORBA::INTERNAL ();
}
}
}
// Recursive step - Add this member to the out_cdr
if (TAO_DynValue_i *member= // Assignment
dynamic_cast<TAO_DynValue_i *>
(this->da_members_[currentMember].in ()))
{
member->to_outputCDR (out_cdr);
}
else
{
CORBA::Any_var
any (this->da_members_[currentMember]->to_any ());
TAO::Any_Impl *impl = any->impl ();
if (impl->encoded ())
{
// Already encoded as a stream, convert this
// into an unknown and copy the stream over.
TAO::Unknown_IDL_Type
*unk= dynamic_cast<TAO::Unknown_IDL_Type *> (impl);
if (!unk)
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::to_outputCDR() ")
ACE_TEXT ("problem obtaining Unknown_IDL_Type\n")));
throw CORBA::INTERNAL ();
}
// Create a new input CDR for this member's
// marshaled representation.
TAO_InputCDR
in_cdr (unk->_tao_get_cdr ());
// Ok append this member's value to the output stream.
CORBA::TypeCode_var
tc (this->da_members_[currentMember]->type ());
(void) TAO_Marshal_Object::perform_append (
tc.in (),
&in_cdr,
&out_cdr);
}
else
{
// Just need to marshal this value into the stream.
impl->marshal_value (out_cdr);
}
}
// Are we ending the current base-type?
if (this->da_base_types_[currentBase]->member_count ()
<= ++currentBaseMember)
{
// Remind us to start again with the next derived type
// for the next member to be writen.
currentBaseMember= 0u;
// We must end the chunk we started for this
// base-type's STATE if we have written the whole state.
if (currentBase < trunc_ids && !ci.end_chunk (out_cdr))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::to_outputCDR() ")
ACE_TEXT ("problem writing base-type ")
ACE_TEXT ("%u state end chuck\n"),
currentBase ));
throw CORBA::INTERNAL ();
}
}
}
// Write out the end chunking markers for the number
// of base types we have writen.
for (i= 1u; i < trunc_ids; ++i)
{
if (!ci.end_chunk (out_cdr))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::to_outputCDR() ")
ACE_TEXT ("problem writing basetype end chucks\n")));
throw CORBA::INTERNAL ();
}
}
}
}
void
TAO_DynValue_i::from_inputCDR (TAO_InputCDR &strm)
{
// Save the start of this ValueType position in the input stream
// to allow caching for later indirections.
VERIFY_MAP (TAO_InputCDR, value_map, Value_Map);
if (strm.align_read_ptr (ACE_CDR::LONG_SIZE))
{
this->set_to_null ();
throw CORBA::INTERNAL ();
}
void *const start_of_valuetype = strm.rd_ptr();
// Read in the ValueType header
CORBA::ValueBase::Repository_Id_List ids;
CORBA::Boolean
is_null_object= false,
is_indirected= false,
is_chunked = false,
result = CORBA::ValueBase::_tao_unmarshal_header (
strm, this->type_.in ()->id (), ids,
is_null_object, is_indirected, is_chunked);
if (!result)
{
TAOLIB_DEBUG ((LM_ERROR,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("_tao_unmarshal_header() failed\n") ));
this->set_to_null ();
throw CORBA::INTERNAL ();
}
if (is_null_object)
{
this->set_to_null ();
return;
}
if (is_indirected)
{
// Effectivly this member? is the same ValueType as previous
// seen either in another member of this container OR the
// whole container itself. (Possiably can happen as a
// circular linked list?)
if (TAO_debug_level)
{
TAOLIB_DEBUG ((LM_ERROR,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("Any contains Indirected ValueType\n") ));
}
// Force the originally created container to empty, it is up
// to the caller to delete it and replace it with the duplicate
// we are now about to find.
this->set_to_null ();
// Read the offset from the stream (should be negative to point
// back to original)
CORBA::Long offset = 0;
if (!strm.read_long (offset) || 0 <= offset)
{
TAOLIB_DEBUG ((LM_ERROR,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("Can't read/understand ")
ACE_TEXT ("Indirected ValueType offset\n") ));
throw CORBA::INTERNAL ();
}
// Work out the input stream location of the original valuetype
// and find the address of the original TAO_DynValue_i that we
// created last time and stored in the map.
void
*pos = strm.rd_ptr () + offset - sizeof (CORBA::Long),
*original = 0;
if (strm.get_value_map()->get()->find (pos, original))
{
TAOLIB_DEBUG ((LM_ERROR,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("Can't find Indirected ValueType ")
ACE_TEXT ("offset in map\n") ));
throw CORBA::INTERNAL ();
}
// Since this is a void * convert it back to our real type and
// throw it for the caller to catch and replace "this"
// TAO_DynValue_i.
TAO_DynValue_i *this_one_instead=
reinterpret_cast<TAO_DynValue_i *> (original);
this_one_instead->_add_ref ();
throw this_one_instead;
}
// Ok since we are not indirected (this time), record "this"
// DynValue_i for later possiable indirections to use.
if (strm.get_value_map ()->get()
->bind (
start_of_valuetype,
reinterpret_cast<void *> (this)))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("Failed to record this into value_map\n") ));
throw CORBA::INTERNAL ();
}
// Work out how many total types there
// are in this derived->base hiarchy.
const CORBA::ULong
num_fields = static_cast <CORBA::ULong> (this->da_members_.size ()),
num_ids = static_cast <CORBA::ULong> (ids.size ());
// Work out if the encoded valuetype inside the any is
// required to be truncated into our DynValue.
CORBA::Boolean requires_truncation = false;
const char *const our_id = this->da_base_types_[0]->id ();
CORBA::ULong i;
for (i= 0u; i < num_ids; ++i)
{
// Does the current id match our DynValue id?
if (!strcmp (our_id, ids[i].c_str ()))
{
break; // Found a match, we have our answer
}
if (!this->allow_truncation_)
{
throw DynamicAny::MustTruncate ();
}
// Since this does not match we must be attempting
// to truncated to a base-type, thus the incomming
// any must be chuncked and this outer type must
// allow truncation.
if (!is_chunked)
{
TAOLIB_DEBUG ((LM_ERROR,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR()\n")
ACE_TEXT (" type %C requires truncation to %C but is not chunked type.\n"),
ids[i].c_str (),
our_id ));
this->set_to_null ();
throw DynamicAny::DynAny::TypeMismatch ();
}
requires_truncation = true;
}
if (i == num_ids)
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("couldn't find matching repo_id!\n")));
this->set_to_null ();
throw DynamicAny::DynAny::TypeMismatch ();
}
// Read in the start chunking markers for the number
// of base types we are reading. If we are not a derived
// type there are none to read (i.e. we are reading one
// less than the num_ids we actually have received).
TAO_ChunkInfo ci (is_chunked, 1);
for (i= 0u; i < num_ids - 1u; ++i)
{
if (!ci.handle_chunking (strm))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("problem reading basetype start chucks\n")));
this->set_to_null ();
throw DynamicAny::DynAny::InvalidValue ();
}
}
// Now read in every member's value (reading further chunking
// marks for each seporate base-type's state we pass).
CORBA::Boolean need_first = true;
CORBA::ULong
currentBase= this->da_base_types_.size (),
currentBaseMember = 0u;
for (CORBA::ULong currentMember= 0u;
currentMember < num_fields;
++currentMember)
{
// Are we starting a new base-type
if (!currentBaseMember)
{
// Move on to the next derived type in the
// list of our type hyarchy
while (!this->da_base_types_[--currentBase]
->member_count ())
{
// Skipping over all types that have no
// state (i.e. no members to write).
}
if (currentBase < num_ids || need_first)
{
// Read past the start chunk for this base-type's state
if (!ci.handle_chunking (strm))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("problem reading base-type ")
ACE_TEXT ("%u state start chuck\n"),
currentBase ));
this->set_to_null ();
throw DynamicAny::DynAny::InvalidValue ();
}
}
}
// OK read in the current member
CORBA::TypeCode_var
field_tc (this->da_base_types_[currentBase]
->member_type (currentBaseMember));
if (CORBA::tk_value == field_tc->kind ())
{
// This is recursive, keep reading from our inputCDR
// this allows for indirection
this->da_members_[currentMember]=
TAO::CreateDynAnyUtils<TAO_DynValue_i, TAO_InputCDR &>
::create_dyn_any_t (
field_tc.in (),
strm,
this->allow_truncation_);
}
else
{
// Need to create an any for this field.
TAO_InputCDR unk_in (strm);
TAO::Unknown_IDL_Type *unk= 0;
ACE_NEW_THROW_EX (
unk,
TAO::Unknown_IDL_Type (field_tc.in (), unk_in),
CORBA::NO_MEMORY ());
CORBA::Any field_any;
field_any.replace (unk);
// This recursive step will call the correct
// constructor based on the type of field_any.
this->da_members_[currentMember] = TAO::MakeDynAnyUtils::
make_dyn_any_t<const CORBA::Any&> (
field_any._tao_get_typecode (),
field_any,
this->allow_truncation_);
// Since the above Unknown used its own inputCDR we need
// to move onto the next field in the real CDR stream as
// IF we had just read the actual value from it.
(void) TAO_Marshal_Object::perform_skip (
field_tc.in (),
&strm);
}
// Are we ending the current base-type?
if (this->da_base_types_[currentBase]->member_count ()
<= ++currentBaseMember)
{
// Remind us to start again with the next derived type
// for the next member to be writen.
currentBaseMember= 0u;
if (currentBase < num_ids)
{
// We must end the chunk that was started for this
// base-type's state.
if (!( (currentBase || !requires_truncation) ?
ci.handle_chunking (strm) :
ci.skip_chunks (strm) ))
{
TAOLIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %N:%l TAO_DynValue_i::from_inputCDR() ")
ACE_TEXT ("problem reading base-type ")
ACE_TEXT ("%u state end chuck\n"),
currentBase ));
this->set_to_null ();
throw DynamicAny::DynAny::InvalidValue ();
}
}
}
}
this->set_to_value ();
}
TAO_END_VERSIONED_NAMESPACE_DECL
|