version_type version() const
{
if (variant() != variant_dce) {
return version_wrong_variant;
}
value_type v = data_[6] >> 4;
if (1 <= v && v <= 5) {
return version_type(v);
}
return version_unknown;
}
void
basic_iarchive_impl::load_preamble(
basic_iarchive & ar,
cobject_id & co
){
if(! co.initialized){
if(co.bis_ptr->class_info()){
class_id_optional_type cid(class_id_type(0));
load(ar, cid); // to be thrown away
load(ar, co.tracking_level);
load(ar, co.file_version);
}
else{
// override tracking with indicator from class information
co.tracking_level = co.bis_ptr->tracking(m_flags);
co.file_version = version_type(
co.bis_ptr->version()
);
}
co.initialized = true;
}
}
void load(version_type & t){
unsigned int v;
load(v);
t = version_type(v);
}
virtual version_type version() const {
return version_type(::boost::serialization::version< T >::value);
}
inline void
basic_oarchive_impl::save_object(
basic_oarchive & ar,
const void *t,
const basic_oserializer & bos
){
// if its been serialized through a pointer and the preamble's been done
if(t == pending_object && pending_bos == & bos){
// just save the object data
ar.end_preamble();
(bos.save_object_data)(ar, t);
return;
}
// get class information for this object
const cobject_type & co = register_type(bos);
if(bos.class_info()){
if( ! co.m_initialized){
ar.vsave(class_id_optional_type(co.m_class_id));
ar.vsave(tracking_type(bos.tracking(m_flags)));
ar.vsave(version_type(bos.version()));
(const_cast<cobject_type &>(co)).m_initialized = true;
}
}
// we're not tracking this type of object
if(! bos.tracking(m_flags)){
// just windup the preamble - no object id to write
ar.end_preamble();
// and save the data
(bos.save_object_data)(ar, t);
return;
}
// look for an existing object id
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 its a new object
if(aresult.second){
// write out the object id
ar.vsave(oid);
ar.end_preamble();
// and data
(bos.save_object_data)(ar, t);
return;
}
// check that it wasn't originally stored through a pointer
if(stored_pointers.end() != stored_pointers.find(oid)){
// this has to be a user error. loading such an archive
// would create duplicate objects
boost::serialization::throw_exception(
archive_exception(archive_exception::pointer_conflict)
);
}
// just save the object id
ar.vsave(object_reference_type(oid));
ar.end_preamble();
return;
}
// 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);
}
// returns class version
version_type version() const {
assert(false);
return version_type(0);
}
// returns class version
version_type version() const {
POTHOS_ASSERT(false);
return version_type(0);
}
// returns class version
version_type version() const {
BOOST_ASSERT(false);
return version_type(0);
}
void load_override(version_type & t, int){
unsigned int x;
* this->This() >> x;
t.t = version_type(x);
}
version.cpp - implementation of version_type class
Copyright (C) 2016 Johannes Lorenz
Author: Johannes Lorenz
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
*/
#include <iostream>
#include "zyn-version.h"
std::ostream& operator<< (std::ostream& os,
const version_type& v)
{
return os << v.major() << '.'
<< v.minor() << '.'
<< v.revision();
}
static_assert(!(version_type(3,1,1) < version_type(1,3,3)),
"version operator failed");
static_assert(version_type(2,9,9) < version_type(3,4,3),
"version operator failed");
static_assert(!(version_type(2,4,3) < version_type(2,4,3)),
"version operator failed");