inline const basic_oarchive_impl::cobject_type &
basic_oarchive_impl::find(const basic_oserializer & bos)
{
std::pair<cobject_info_set_type::iterator, bool> cresult =
cobject_info_set.insert(cobject_type(cobject_info_set.size(), bos));
return *(cresult.first);
}
inline const basic_oarchive_impl::cobject_type &
basic_oarchive_impl::register_type(
const basic_oserializer & bos
){
cobject_type co(cobject_info_set.size(), bos);
std::pair<cobject_info_set_type::const_iterator, bool>
result = cobject_info_set.insert(co);
return *(result.first);
}
inline class_id_type
basic_iarchive_impl::register_type(
const basic_iserializer & bis
){
class_id_type cid(cobject_info_set.size());
cobject_type co(cid, bis);
std::pair<cobject_info_set_type::const_iterator, bool>
result = cobject_info_set.insert(co);
if(result.second){
cobject_id_vector.push_back(cobject_id(bis));
BOOST_ASSERT(cobject_info_set.size() == cobject_id_vector.size());
}
cid = result.first->m_class_id;
// borland complains without this minor hack
const int tid = cid;
cobject_id & coid = cobject_id_vector[tid];
coid.bpis_ptr = bis.get_bpis_ptr();
return cid;
}
inline const basic_pointer_iserializer *
basic_iarchive_impl::load_pointer(
basic_iarchive &ar,
void * & t,
const basic_pointer_iserializer * bpis_ptr,
const basic_pointer_iserializer * (*finder)(
const boost::serialization::extended_type_info & type_
)
){
m_moveable_objects.is_pointer = true;
serialization::state_saver<bool> w(m_moveable_objects.is_pointer);
class_id_type cid;
load(ar, cid);
if(NULL_POINTER_TAG == cid){
t = NULL;
return bpis_ptr;
}
// if its a new class type - i.e. never been registered
if(class_id_type(cobject_info_set.size()) <= cid){
// if its either abstract
if(NULL == bpis_ptr
// or polymorphic
|| bpis_ptr->get_basic_serializer().is_polymorphic()){
// is must have been exported
char key[BOOST_SERIALIZATION_MAX_KEY_SIZE];
class_name_type class_name(key);
load(ar, class_name);
// if it has a class name
const serialization::extended_type_info *eti = NULL;
if(0 != key[0])
eti = serialization::extended_type_info::find(key);
if(NULL == eti)
boost::serialization::throw_exception(
archive_exception(archive_exception::unregistered_class)
);
bpis_ptr = (*finder)(*eti);
}
BOOST_ASSERT(NULL != bpis_ptr);
// class_id_type new_cid = register_type(bpis_ptr->get_basic_serializer());
BOOST_VERIFY(register_type(bpis_ptr->get_basic_serializer()) == cid);
int i = cid;
cobject_id_vector[i].bpis_ptr = bpis_ptr;
}
int i = cid;
cobject_id & co = cobject_id_vector[i];
bpis_ptr = co.bpis_ptr;
load_preamble(ar, co);
// extra line to evade borland issue
const bool tracking = co.tracking_level;
// if we're tracking and the pointer has already been read
if(tracking && ! track(ar, t))
// we're done
return bpis_ptr;
// save state
serialization::state_saver<object_id_type> w_start(m_moveable_objects.start);
// allocate space on the heap for the object - to be constructed later
t = bpis_ptr->heap_allocation();
BOOST_ASSERT(NULL != t);
if(! tracking){
bpis_ptr->load_object_ptr(ar, t, co.file_version);
}
else{
serialization::state_saver<void *> x(m_pending.object);
serialization::state_saver<const basic_iserializer *> y(m_pending.bis);
serialization::state_saver<version_type> z(m_pending.version);
m_pending.bis = & bpis_ptr->get_basic_serializer();
m_pending.version = co.file_version;
// predict next object id to be created
const unsigned int ui = object_id_vector.size();
serialization::state_saver<object_id_type> w_end(m_moveable_objects.end);
// add to list of serialized objects so that we can properly handle
// cyclic strucures
object_id_vector.push_back(aobject(t, cid));
// remember that that the address of these elements could change
// when we make another call so don't use the address
bpis_ptr->load_object_ptr(
ar,
t,
m_pending.version
);
object_id_vector[ui].loaded_as_pointer = true;
}
return bpis_ptr;
}
// save a pointer to an object instance
inline void
basic_oarchive_impl::save_pointer(
basic_oarchive & ar,
const void * t,
const basic_pointer_oserializer * bpos_ptr
){
const basic_oserializer & bos = bpos_ptr->get_basic_serializer();
std::size_t original_count = cobject_info_set.size();
const cobject_type & co = register_type(bos);
if(! co.m_initialized){
ar.vsave(co.m_class_id);
// if its a previously unregistered class
if((cobject_info_set.size() > original_count)){
if(bos.is_polymorphic()){
const serialization::extended_type_info *eti = & bos.get_eti();
const char * key = NULL;
if(NULL != eti)
key = eti->get_key();
if(NULL != key){
// the following is required by IBM C++ compiler which
// makes a copy when passing a non-const to a const. This
// is permitted by the standard but rarely seen in practice
const class_name_type cn(key);
// write out the external class identifier
ar.vsave(cn);
}
else
// without an external class name
// we won't be able to de-serialize it so bail now
boost::serialization::throw_exception(
archive_exception(archive_exception::unregistered_class)
);
}
}
if(bos.class_info()){
ar.vsave(tracking_type(bos.tracking(m_flags)));
ar.vsave(version_type(bos.version()));
}
(const_cast<cobject_type &>(co)).m_initialized = true;
}
else{
ar.vsave(class_id_reference_type(co.m_class_id));
}
// if we're not tracking
if(! bos.tracking(m_flags)){
// just save the data itself
ar.end_preamble();
serialization::state_saver<const void *> x(pending_object);
serialization::state_saver<const basic_oserializer *> y(pending_bos);
pending_object = t;
pending_bos = & bpos_ptr->get_basic_serializer();
bpos_ptr->save_object_ptr(ar, t);
return;
}
object_id_type oid(object_set.size());
// lookup to see if this object has already been written to the archive
basic_oarchive_impl::aobject ao(t, co.m_class_id, oid);
std::pair<basic_oarchive_impl::object_set_type::const_iterator, bool>
aresult = object_set.insert(ao);
oid = aresult.first->object_id;
// if the saved object already exists
if(! aresult.second){
// append the object id to he preamble
ar.vsave(object_reference_type(oid));
// and windup.
ar.end_preamble();
return;
}
// append id of this object to preamble
ar.vsave(oid);
ar.end_preamble();
// and save the object itself
serialization::state_saver<const void *> x(pending_object);
serialization::state_saver<const basic_oserializer *> y(pending_bos);
pending_object = t;
pending_bos = & bpos_ptr->get_basic_serializer();
bpos_ptr->save_object_ptr(ar, t);
// add to the set of object initially stored through pointers
stored_pointers.insert(oid);
}
