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mirror of https://github.com/vcmi/vcmi.git synced 2024-11-24 08:32:34 +02:00
vcmi/lib/Connection.h

1297 lines
30 KiB
C++

/*
* Connection.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include <typeinfo> //XXX this is in namespace std if you want w/o use typeinfo.h?
#include <boost/type_traits/is_fundamental.hpp>
#include <boost/type_traits/is_enum.hpp>
#include <boost/type_traits/is_pointer.hpp>
#include <boost/type_traits/is_class.hpp>
#include <boost/type_traits/is_base_of.hpp>
#include <boost/type_traits/is_array.hpp>
#include <boost/type_traits/remove_pointer.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/variant.hpp>
#include <boost/mpl/eval_if.hpp>
#include <boost/mpl/equal_to.hpp>
#include <boost/mpl/int.hpp>
#include <boost/mpl/identity.hpp>
#include <boost/any.hpp>
#include "ConstTransitivePtr.h"
#include "CCreatureSet.h" //for CStackInstance
#include "CObjectHandler.h" //for CArmedInstance
#include "Mapping/CCampaignHandler.h" //for CCampaignState
const ui32 version = 737;
const TSlot COMMANDER_SLOT_PLACEHOLDER = -2;
class CConnection;
class CGObjectInstance;
class CStackInstance;
class CGameState;
class CCreature;
class LibClasses;
class CHero;
struct CPack;
extern DLL_LINKAGE LibClasses * VLC;
namespace mpl = boost::mpl;
namespace boost
{
namespace asio
{
namespace ip
{
class tcp;
}
class io_service;
template <typename Protocol> class stream_socket_service;
template <typename Protocol,typename StreamSocketService>
class basic_stream_socket;
template <typename Protocol> class socket_acceptor_service;
template <typename Protocol,typename SocketAcceptorService>
class basic_socket_acceptor;
}
class mutex;
}
enum SerializationLvl
{
Wrong=0,
Boolean,
Primitive,
Array,
Pointer,
Enum,
Serializable,
BooleanVector
};
struct TypeComparer
{
bool operator()(const std::type_info *a, const std::type_info *b) const
{
return a->before(*b);
}
};
class DLL_LINKAGE CTypeList
{
typedef std::multimap<const std::type_info *,ui16,TypeComparer> TTypeMap;
TTypeMap types;
public:
CTypeList();
ui16 registerType(const std::type_info *type);
template <typename T> ui16 registerType(const T * t = NULL)
{
return registerType(getTypeInfo(t));
}
ui16 getTypeID(const std::type_info *type);
template <typename T> ui16 getTypeID(const T * t = NULL)
{
return getTypeID(getTypeInfo(t));
}
template <typename T> const std::type_info * getTypeInfo(const T * t = NULL)
{
if(t)
return &typeid(*t);
else
return &typeid(T);
}
};
extern DLL_LINKAGE CTypeList typeList;
template<typename Ser>
struct SaveBoolean
{
static void invoke(Ser &s, const bool &data)
{
s.saveBoolean(data);
}
};
template<typename Ser>
struct LoadBoolean
{
static void invoke(Ser &s, bool &data)
{
s.loadBoolean(data);
}
};
template<typename Ser>
struct SaveBooleanVector
{
static void invoke(Ser &s, const std::vector<bool> &data)
{
s.saveBooleanVector(data);
}
};
template<typename Ser>
struct LoadBooleanVector
{
static void invoke(Ser &s, std::vector<bool> &data)
{
s.loadBooleanVector(data);
}
};
template<typename Ser,typename T>
struct SavePrimitive
{
static void invoke(Ser &s, const T &data)
{
s.savePrimitive(data);
}
};
template<typename Ser,typename T>
struct SaveSerializable
{
static void invoke(Ser &s, const T &data)
{
s.saveSerializable(data);
}
};
template<typename Ser,typename T>
struct SaveEnum
{
static void invoke(Ser &s, const T &data)
{
s.saveEnum(data);
}
};
template<typename Ser,typename T>
struct LoadEnum
{
static void invoke(Ser &s, T &data)
{
s.loadEnum(data);
}
};
template<typename Ser,typename T>
struct LoadPrimitive
{
static void invoke(Ser &s, T &data)
{
s.loadPrimitive(data);
}
};
template<typename Ser,typename T>
struct SavePointer
{
static void invoke(Ser &s, const T &data)
{
s.savePointer(data);
}
};
template<typename Ser,typename T>
struct LoadPointer
{
static void invoke(Ser &s, T &data)
{
s.loadPointer(data);
}
};
template<typename Ser,typename T>
struct SaveArray
{
static void invoke(Ser &s, const T &data)
{
s.saveArray(data);
}
};
template<typename Ser,typename T>
struct LoadArray
{
static void invoke(Ser &s, T &data)
{
s.loadArray(data);
}
};
template<typename Ser,typename T>
struct LoadSerializable
{
static void invoke(Ser &s, T &data)
{
s.loadSerializable(data);
}
};
template<typename Ser,typename T>
struct SaveWrong
{
static void invoke(Ser &s, const T &data)
{
throw std::runtime_error("Wrong save serialization call!");
}
};
template<typename Ser,typename T>
struct LoadWrong
{
static void invoke(Ser &s, const T &data)
{
throw std::runtime_error("Wrong load serialization call!");
}
};
template<typename T>
struct SerializationLevel
{
typedef mpl::integral_c_tag tag;
typedef
typename mpl::eval_if<
boost::is_same<T, bool>,
mpl::int_<Boolean>,
//else
typename mpl::eval_if<
boost::is_same<T, std::vector<bool> >,
mpl::int_<BooleanVector>,
//else
typename mpl::eval_if<
boost::is_fundamental<T>,
mpl::int_<Primitive>,
//else
typename mpl::eval_if<
boost::is_enum<T>,
mpl::int_<Enum>,
//else
typename mpl::eval_if<
boost::is_class<T>,
mpl::int_<Serializable>,
//else
typename mpl::eval_if<
boost::is_array<T>,
mpl::int_<Array>,
//else
typename mpl::eval_if<
boost::is_pointer<T>,
mpl::int_<Pointer>,
//else
typename mpl::eval_if<
boost::is_enum<T>,
mpl::int_<Primitive>,
//else
mpl::int_<Wrong>
>
>
>
>
>
>
>
>::type type;
static const int value = SerializationLevel::type::value;
};
template <typename T, typename U>
struct VectorisedObjectInfo
{
const std::vector<ConstTransitivePtr<T> > *vector; //pointer to the appropriate vector
const U T::*idPtr; //pointer to the field representing the position in the vector
VectorisedObjectInfo(const std::vector< ConstTransitivePtr<T> > *Vector, const U T::*IdPtr)
:vector(Vector), idPtr(IdPtr)
{
}
};
/// Class which is responsible for storing and loading data.
class DLL_LINKAGE CSerializer
{
public:
typedef std::map<const std::type_info *, boost::any, TypeComparer> TTypeVecMap;
TTypeVecMap vectors; //entry must be a pointer to vector containing pointers to the objects of key type
bool smartVectorMembersSerialization;
bool sendStackInstanceByIds;
CSerializer();
~CSerializer();
virtual void reportState(CLogger &out){};
template <typename T, typename U>
void registerVectoredType(const std::vector<T*> *Vector, const U T::*IdPtr)
{
vectors[&typeid(T)] = VectorisedObjectInfo<T, U>(Vector, IdPtr);
}
template <typename T, typename U>
void registerVectoredType(const std::vector<ConstTransitivePtr<T> > *Vector, const U T::*IdPtr)
{
vectors[&typeid(T)] = VectorisedObjectInfo<T, U>(Vector, IdPtr);
}
template <typename T, typename U>
const VectorisedObjectInfo<T, U> *getVectorisedTypeInfo()
{
const std::type_info *myType = NULL;
//
// if(boost::is_base_of<CGObjectInstance, T>::value) //ugly workaround to support also types derived from CGObjectInstance -> if we encounter one, treat it aas CGObj..
// myType = &typeid(CGObjectInstance);
// else
myType = &typeid(T);
TTypeVecMap::iterator i = vectors.find(myType);
if(i == vectors.end())
return NULL;
else
{
assert(!i->second.empty());
assert(i->second.type() == typeid(VectorisedObjectInfo<T, U>));
VectorisedObjectInfo<T, U> *ret = &(boost::any_cast<VectorisedObjectInfo<T, U>&>(i->second));
return ret;
}
}
template <typename T, typename U>
T* getVectorItemFromId(const VectorisedObjectInfo<T, U> &oInfo, U id) const
{
/* if(id < 0)
return NULL;*/
assert(oInfo.vector);
assert(oInfo.vector->size() > id);
return const_cast<T*>((*oInfo.vector)[id].get());
}
template <typename T, typename U>
U getIdFromVectorItem(const VectorisedObjectInfo<T, U> &oInfo, const T* obj) const
{
if(!obj)
return U(-1);
return obj->*oInfo.idPtr;
}
void addStdVecItems(CGameState *gs, LibClasses *lib = VLC);
};
class DLL_LINKAGE CSaverBase : public virtual CSerializer
{
};
class CBasicPointerSaver
{
public:
virtual void savePtr(CSaverBase &ar, const void *data) const =0;
virtual ~CBasicPointerSaver(){}
};
template <typename Serializer, typename T> class CPointerSaver : public CBasicPointerSaver
{
public:
void savePtr(CSaverBase &ar, const void *data) const
{
Serializer &s = static_cast<Serializer&>(ar);
const T *ptr = static_cast<const T*>(data);
//T is most derived known type, it's time to call actual serialize
const_cast<T&>(*ptr).serialize(s,version);
}
};
template <typename T> //metafunction returning CGObjectInstance if T is its derivate or T elsewise
struct VectorisedTypeFor
{
typedef typename
//if
mpl::eval_if<boost::is_base_of<CGObjectInstance,T>,
mpl::identity<CGObjectInstance>,
//else
mpl::identity<T>
>::type type;
};
template <typename U>
struct VectorizedIDType
{
typedef typename
//if
mpl::eval_if<boost::is_same<CArtifact,U>,
mpl::identity<ArtifactID>,
//else if
mpl::eval_if<boost::is_same<CCreature,U>,
mpl::identity<CreatureID>,
//else
mpl::identity<si32>
>
>::type type;
};
template <typename Handler>
struct VariantVisitorSaver : boost::static_visitor<>
{
Handler &h;
VariantVisitorSaver(Handler &H):h(H)
{
}
template <typename T>
void operator()(const T &t)
{
h << t;
}
};
template<typename Ser,typename T>
struct SaveIfStackInstance
{
static bool invoke(Ser &s, const T &data)
{
return false;
}
};
template<typename Ser>
struct SaveIfStackInstance<Ser, CStackInstance *>
{
static bool invoke(Ser &s, const CStackInstance* const &data)
{
assert(data->armyObj);
TSlot slot = -1;
if(data->getNodeType() == CBonusSystemNode::COMMANDER)
slot = COMMANDER_SLOT_PLACEHOLDER;
else
slot = data->armyObj->findStack(data);
assert(slot != -1);
s << data->armyObj << slot;
return true;
}
};
template<typename Ser,typename T>
struct LoadIfStackInstance
{
static bool invoke(Ser &s, T &data)
{
return false;
}
};
template<typename Ser>
struct LoadIfStackInstance<Ser, CStackInstance *>
{
static bool invoke(Ser &s, CStackInstance* &data)
{
CArmedInstance *armedObj;
TSlot slot;
s >> armedObj >> slot;
if(slot != COMMANDER_SLOT_PLACEHOLDER)
{
assert(armedObj->hasStackAtSlot(slot));
data = armedObj->stacks[slot];
}
else
{
auto hero = dynamic_cast<CGHeroInstance *>(armedObj);
assert(hero);
assert(hero->commander);
data = hero->commander;
}
return true;
}
};
/// The class which manages saving objects.
template <typename Serializer> class DLL_LINKAGE COSer : public CSaverBase
{
public:
bool saving;
std::map<ui16,CBasicPointerSaver*> savers; // typeID => CPointerSaver<serializer,type>
std::map<const void*, ui32> savedPointers;
bool smartPointerSerialization;
COSer()
{
saving=true;
smartPointerSerialization = true;
}
~COSer()
{
std::map<ui16,CBasicPointerSaver*>::iterator iter;
for(iter = savers.begin(); iter != savers.end(); iter++)
delete iter->second;
}
template<typename T> void registerType(const T * t=NULL)
{
ui16 ID = typeList.registerType(t);
savers[ID] = new CPointerSaver<COSer<Serializer>,T>;
}
Serializer * This()
{
return static_cast<Serializer*>(this);
}
template<class T>
Serializer & operator<<(const T &t)
{
this->This()->save(t);
return * this->This();
}
template<class T>
COSer & operator&(const T & t)
{
return * this->This() << t;
}
int write(const void * data, unsigned size);
template <typename T>
void savePrimitive(const T &data)
{
this->This()->write(&data,sizeof(data));
}
template <typename T>
void savePointer(const T &data)
{
//write if pointer is not NULL
ui8 hlp = (data!=NULL);
*this << hlp;
//if pointer is NULL then we don't need anything more...
if(!hlp)
return;
if(smartVectorMembersSerialization)
{
typedef typename boost::remove_const<typename boost::remove_pointer<T>::type>::type TObjectType;
typedef typename VectorisedTypeFor<TObjectType>::type VType;
typedef typename VectorizedIDType<TObjectType>::type IDType;
if(const auto *info = getVectorisedTypeInfo<VType, IDType>())
{
si32 id = getIdFromVectorItem<VType>(*info, data);
*this << id;
if(id != -1) //vector id is enough
return;
}
}
if(sendStackInstanceByIds)
{
const bool gotSaved = SaveIfStackInstance<Serializer,T>::invoke(*This(), data);
if(gotSaved)
return;
}
if(smartPointerSerialization)
{
std::map<const void*,ui32>::iterator i = savedPointers.find(data);
if(i != savedPointers.end())
{
//this pointer has been already serialized - write only it's id
*this << i->second;
return;
}
//give id to this pointer
ui32 pid = (ui32)savedPointers.size();
savedPointers[data] = pid;
*this << pid;
}
//write type identifier
ui16 tid = typeList.getTypeID(data);
*this << tid;
This()->savePointerHlp(tid, data);
}
//that part of ptr serialization was extracted to allow customization of its behavior in derived classes
template <typename T>
void savePointerHlp(ui16 tid, const T &data)
{
if(!tid)
*this << *data; //if type is unregistered simply write all data in a standard way
else
savers[tid]->savePtr(*this,data); //call serializer specific for our real type
}
template <typename T>
void saveArray(const T &data)
{
ui32 size = ARRAY_COUNT(data);
for(ui32 i=0; i < size; i++)
*this << data[i];
}
template <typename T>
void save(const T &data)
{
typedef
//if
typename mpl::eval_if< mpl::equal_to<SerializationLevel<T>,mpl::int_<Boolean> >,
mpl::identity<SaveBoolean<Serializer> >,
//else if
typename mpl::eval_if< mpl::equal_to<SerializationLevel<T>,mpl::int_<BooleanVector> >,
mpl::identity<SaveBooleanVector<Serializer> >,
//else if
typename mpl::eval_if< mpl::equal_to<SerializationLevel<T>,mpl::int_<Primitive> >,
mpl::identity<SavePrimitive<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Enum> >,
mpl::identity<SaveEnum<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Pointer> >,
mpl::identity<SavePointer<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Array> >,
mpl::identity<SaveArray<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Serializable> >,
mpl::identity<SaveSerializable<Serializer,T> >,
//else
mpl::identity<SaveWrong<Serializer,T> >
>
>
>
>
>
>
>::type typex;
typex::invoke(* this->This(), data);
}
template <typename T>
void saveSerializable(const T &data)
{
const_cast<T&>(data).serialize(*this,version);
}
template <typename T>
void saveSerializable(const shared_ptr<T> &data)
{
T *internalPtr = data.get();
*this << internalPtr;
}
template <typename T>
void saveSerializable(const unique_ptr<T> &data)
{
T *internalPtr = data.get();
*this << internalPtr;
}
template <typename T>
void saveSerializable(const std::vector<T> &data)
{
ui32 length = data.size();
*this << length;
for(ui32 i=0;i<length;i++)
*this << data[i];
}
template <typename T>
void saveSerializable(const std::set<T> &data)
{
std::set<T> &d = const_cast<std::set<T> &>(data);
ui32 length = d.size();
*this << length;
for(typename std::set<T>::iterator i=d.begin();i!=d.end();i++)
*this << *i;
}
template <typename T, typename U>
void saveSerializable(const boost::unordered_set<T, U> &data)
{
boost::unordered_set<T, U> &d = const_cast<boost::unordered_set<T, U> &>(data);
ui32 length = d.size();
*this << length;
for(typename boost::unordered_set<T, U>::iterator i=d.begin();i!=d.end();i++)
*this << *i;
}
template <typename T>
void saveSerializable(const std::list<T> &data)
{
std::list<T> &d = const_cast<std::list<T> &>(data);
ui32 length = d.size();
*this << length;
for(typename std::list<T>::iterator i=d.begin();i!=d.end();i++)
*this << *i;
}
void saveSerializable(const std::string &data)
{
*this << ui32(data.length());
this->This()->write(data.c_str(),data.size());
}
template <typename T1, typename T2>
void saveSerializable(const std::pair<T1,T2> &data)
{
*this << data.first << data.second;
}
template <typename T1, typename T2>
void saveSerializable(const std::map<T1,T2> &data)
{
*this << ui32(data.size());
for(typename std::map<T1,T2>::const_iterator i=data.begin();i!=data.end();i++)
*this << i->first << i->second;
}
template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
void saveSerializable(const boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> &data)
{
si32 which = data.which();
*this << which;
VariantVisitorSaver<Serializer> visitor(*this->This());
boost::apply_visitor(visitor, data);
}
template <typename T>
void saveSerializable(const boost::optional<T> &data)
{
if(data)
{
*this << (ui8)1;
*this << *data;
}
else
{
*this << (ui8)0;
}
}
template <typename E>
void saveEnum(const E &data)
{
si32 writ = static_cast<si32>(data);
*this << writ;
}
void saveBoolean(const bool & data)
{
ui8 writ = static_cast<ui8>(data);
*this << writ;
}
void saveBooleanVector(const std::vector<bool> & data)
{
std::vector<ui8> convData;
std::copy(data.begin(), data.end(), std::back_inserter(convData));
saveSerializable(convData);
}
};
class DLL_LINKAGE CLoaderBase : public virtual CSerializer
{};
class CBasicPointerLoader
{
public:
virtual void loadPtr(CLoaderBase &ar, void *data, ui32 pid) const =0; //data is pointer to the ACTUAL POINTER
virtual ~CBasicPointerLoader(){}
};
template <typename Serializer, typename T> class CPointerLoader : public CBasicPointerLoader
{
public:
void loadPtr(CLoaderBase &ar, void *data, ui32 pid) const //data is pointer to the ACTUAL POINTER
{
Serializer &s = static_cast<Serializer&>(ar);
T *&ptr = *static_cast<T**>(data);
//create new object under pointer
typedef typename boost::remove_pointer<T>::type npT;
ptr = new npT;
s.ptrAllocated(ptr, pid);
//T is most derived known type, it's time to call actual serialize
ptr->serialize(s,version);
}
};
/// The class which manages loading of objects.
template <typename Serializer> class DLL_LINKAGE CISer : public CLoaderBase
{
public:
bool saving;
std::map<ui16,CBasicPointerLoader*> loaders; // typeID => CPointerSaver<serializer,type>
ui32 fileVersion;
bool reverseEndianess; //if source has different endianess than us, we reverse bytes
std::map<ui32, void*> loadedPointers;
bool smartPointerSerialization;
CISer()
{
saving = false;
fileVersion = 0;
smartPointerSerialization = true;
reverseEndianess = false;
}
~CISer()
{
std::map<ui16,CBasicPointerLoader*>::iterator iter;
for(iter = loaders.begin(); iter != loaders.end(); iter++)
delete iter->second;
}
template<typename T> void registerType(const T * t=NULL)
{
ui16 ID = typeList.registerType(t);
loaders[ID] = new CPointerLoader<CISer<Serializer>,T>;
}
Serializer * This()
{
return static_cast<Serializer*>(this);
}
template<class T>
Serializer & operator>>(T &t)
{
this->This()->load(t);
return * this->This();
}
template<class T>
CISer & operator&(T & t)
{
return * this->This() >> t;
}
int write(const void * data, unsigned size);
template <typename T>
void load(T &data)
{
typedef
//if
typename mpl::eval_if< mpl::equal_to<SerializationLevel<T>,mpl::int_<Boolean> >,
mpl::identity<LoadBoolean<Serializer> >,
//else if
typename mpl::eval_if< mpl::equal_to<SerializationLevel<T>,mpl::int_<BooleanVector> >,
mpl::identity<LoadBooleanVector<Serializer> >,
//else if
typename mpl::eval_if< mpl::equal_to<SerializationLevel<T>,mpl::int_<Primitive> >,
mpl::identity<LoadPrimitive<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Enum> >,
mpl::identity<LoadEnum<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Pointer> >,
mpl::identity<LoadPointer<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Array> >,
mpl::identity<LoadArray<Serializer,T> >,
//else if
typename mpl::eval_if<mpl::equal_to<SerializationLevel<T>,mpl::int_<Serializable> >,
mpl::identity<LoadSerializable<Serializer,T> >,
//else
mpl::identity<LoadWrong<Serializer,T> >
>
>
>
>
>
>
>::type typex;
typex::invoke(* this->This(), data);
}
template <typename T>
void loadPrimitive(T &data)
{
if(0) //for testing #989
{
this->This()->read(&data,sizeof(data));
}
else
{
unsigned length = sizeof(data);
char* dataPtr = (char*)&data;
this->This()->read(dataPtr,length);
if(reverseEndianess)
std::reverse(dataPtr, dataPtr + length);
}
}
template <typename T>
void loadSerializableBySerializeCall(T &data)
{
////that const cast is evil because it allows to implicitly overwrite const objects when deserializing
typedef typename boost::remove_const<T>::type nonConstT;
nonConstT &hlp = const_cast<nonConstT&>(data);
hlp.serialize(*this,fileVersion);
//data.serialize(*this,myVersion);
}
template <typename T>
void loadSerializable(T &data)
{
loadSerializableBySerializeCall(data);
}
template <typename T>
void loadArray(T &data)
{
ui32 size = ARRAY_COUNT(data);
for(ui32 i = 0; i < size; i++)
*this >> data[i];
}
template <typename T>
void loadPointer(T &data)
{
ui8 hlp;
*this >> hlp;
if(!hlp)
{
data = NULL;
return;
}
if(smartVectorMembersSerialization)
{
typedef typename boost::remove_const<typename boost::remove_pointer<T>::type>::type TObjectType; //eg: const CGHeroInstance * => CGHeroInstance
typedef typename VectorisedTypeFor<TObjectType>::type VType; //eg: CGHeroInstance -> CGobjectInstance
typedef typename VectorizedIDType<TObjectType>::type IDType;
if(const auto *info = getVectorisedTypeInfo<VType, IDType>())
{
si32 id;
*this >> id;
if(id != -1)
{
data = static_cast<T>(getVectorItemFromId<VType, IDType>(*info, IDType(id)));
return;
}
}
}
if(sendStackInstanceByIds)
{
bool gotLoaded = LoadIfStackInstance<Serializer,T>::invoke(*This(), data);
if(gotLoaded)
return;
}
ui32 pid = 0xffffffff; //pointer id (or maybe rather pointee id)
if(smartPointerSerialization)
{
*this >> pid; //get the id
std::map<ui32, void*>::iterator i = loadedPointers.find(pid); //lookup
if(i != loadedPointers.end())
{
//we already got this pointer
data = static_cast<T>(i->second);
return;
}
}
//get type id
ui16 tid;
*this >> tid;
This()->loadPointerHlp(tid, data, pid);
}
//that part of ptr deserialization was extracted to allow customization of its behavior in derived classes
template <typename T>
void loadPointerHlp( ui16 tid, T & data, ui32 pid )
{
if(!tid)
{
typedef typename boost::remove_pointer<T>::type npT;
typedef typename boost::remove_const<npT>::type ncpT;
data = new ncpT;
ptrAllocated(data, pid);
*this >> *data;
}
else
{
loaders[tid]->loadPtr(*this,&data, pid);
}
}
template <typename T>
void ptrAllocated(const T *ptr, ui32 pid)
{
if(smartPointerSerialization && pid != 0xffffffff)
loadedPointers[pid] = (void*)ptr; //add loaded pointer to our lookup map; cast is to avoid errors with const T* pt
}
#define READ_CHECK_U32(x) \
ui32 length; \
*this >> length; \
if(length > 500000) \
{ \
tlog2 << "Warning: very big length: " << length << "\n" ;\
reportState(tlog2); \
};
template <typename T>
void loadSerializable(shared_ptr<T> &data)
{
T *internalPtr;
*this >> internalPtr;
data.reset(internalPtr);
}
template <typename T>
void loadSerializable(unique_ptr<T> &data)
{
T *internalPtr;
*this >> internalPtr;
data.reset(internalPtr);
}
template <typename T>
void loadSerializable(std::vector<T> &data)
{
READ_CHECK_U32(length);
data.resize(length);
for(ui32 i=0;i<length;i++)
*this >> data[i];
}
template <typename T>
void loadSerializable(std::set<T> &data)
{
READ_CHECK_U32(length);
T ins;
for(ui32 i=0;i<length;i++)
{
*this >> ins;
data.insert(ins);
}
}
template <typename T, typename U>
void loadSerializable(boost::unordered_set<T, U> &data)
{
READ_CHECK_U32(length);
T ins;
for(ui32 i=0;i<length;i++)
{
*this >> ins;
data.insert(ins);
}
}
template <typename T>
void loadSerializable(std::list<T> &data)
{
READ_CHECK_U32(length);
T ins;
for(ui32 i=0;i<length;i++)
{
*this >> ins;
data.push_back(ins);
}
}
template <typename T1, typename T2>
void loadSerializable(std::pair<T1,T2> &data)
{
*this >> data.first >> data.second;
}
template <typename T1, typename T2>
void loadSerializable(std::map<T1,T2> &data)
{
READ_CHECK_U32(length);
T1 t;
for(ui32 i=0;i<length;i++)
{
*this >> t;
*this >> data[t];
}
}
void loadSerializable(std::string &data)
{
READ_CHECK_U32(length);
data.resize(length);
this->This()->read((void*)data.c_str(),length);
}
template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
void loadSerializable(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> &data)
{
si32 which;
*this >> which;
if(which == 0)
{
T0 obj;
*this >> obj;
data = obj;
}
else if(which == 1)
{
T1 obj;
*this >> obj;
data = obj;
}
else
assert(0);
//TODO write more if needed, general solution would be much longer
}
template <typename T>
void loadSerializable(boost::optional<T> & data)
{
ui8 present;
*this >> present;
if(present)
{
T t;
*this >> t;
data = t;
}
else
{
data = boost::optional<T>();
}
}
void loadSerializable(CStackInstance *&s)
{
if(sendStackInstanceByIds)
{
CArmedInstance *armed;
TSlot slot;
*this >> armed >> slot;
assert(armed->hasStackAtSlot(slot));
s = armed->stacks[slot];
}
else
loadSerializableBySerializeCall(s);
}
template <typename E>
void loadEnum(E &data)
{
si32 read;
*this >> read;
data = static_cast<E>(read);
}
void loadBoolean(bool &data)
{
ui8 read;
*this >> read;
data = static_cast<bool>(read);
}
void loadBooleanVector(std::vector<bool> & data)
{
std::vector<ui8> convData;
loadSerializable(convData);
std::copy(convData.begin(), convData.end(), std::back_inserter(data));
}
};
class DLL_LINKAGE CSaveFile
: public COSer<CSaveFile>
{
void dummyMagicFunction()
{
*this << std::string("This function makes stuff working.");
}
public:
std::string fName;
unique_ptr<std::ofstream> sfile;
CSaveFile(const std::string &fname); //throws!
~CSaveFile();
int write(const void * data, unsigned size);
void openNextFile(const std::string &fname); //throws!
void clear();
void reportState(CLogger &out);
};
class DLL_LINKAGE CLoadFile
: public CISer<CLoadFile>
{
void dummyMagicFunction()
{
std::string dummy = "This function makes stuff working.";
*this >> dummy;
}
public:
std::string fName;
unique_ptr<std::ifstream> sfile;
CLoadFile(const std::string &fname, int minimalVersion = version); //throws!
~CLoadFile();
int read(const void * data, unsigned size); //throws!
void openNextFile(const std::string &fname, int minimalVersion); //throws!
void clear();
void reportState(CLogger &out);
};
typedef boost::asio::basic_stream_socket < boost::asio::ip::tcp , boost::asio::stream_socket_service<boost::asio::ip::tcp> > TSocket;
typedef boost::asio::basic_socket_acceptor<boost::asio::ip::tcp, boost::asio::socket_acceptor_service<boost::asio::ip::tcp> > TAcceptor;
class DLL_LINKAGE CConnection
:public CISer<CConnection>, public COSer<CConnection>
{
//CGameState *gs;
CConnection(void);
void init();
void reportState(CLogger &out);
public:
boost::mutex *rmx, *wmx; // read/write mutexes
TSocket * socket;
bool logging;
bool connected;
bool myEndianess, contactEndianess; //true if little endian, if endianess is different we'll have to revert received multi-byte vars
boost::asio::io_service *io_service;
std::string name; //who uses this connection
int connectionID;
boost::thread *handler;
bool receivedStop, sendStop;
CConnection(std::string host, std::string port, std::string Name);
CConnection(TAcceptor * acceptor, boost::asio::io_service *Io_service, std::string Name);
CConnection(TSocket * Socket, std::string Name); //use immediately after accepting connection into socket
int write(const void * data, unsigned size);
int read(void * data, unsigned size);
void close();
bool isOpen() const;
template<class T>
CConnection &operator&(const T&);
virtual ~CConnection(void);
CPack *retreivePack(); //gets from server next pack (allocates it with new)
void sendPackToServer(const CPack &pack, TPlayerColor player, ui32 requestID);
void disableStackSendingByID();
void enableStackSendingByID();
void disableSmartPointerSerialization();
void enableSmartPointerSerializatoin();
void prepareForSendingHeroes(); //disables sending vectorised, enables smart pointer serialization, clears saved/loaded ptr cache
};
DLL_LINKAGE std::ostream &operator<<(std::ostream &str, const CConnection &cpc);
template<typename T>
class CApplier
{
public:
std::map<ui16,T*> apps;
~CApplier()
{
typename std::map<ui16, T*>::iterator iter;
for(iter = apps.begin(); iter != apps.end(); iter++)
delete iter->second;
}
template<typename U> void registerType(const U * t=NULL)
{
ui16 ID = typeList.registerType(t);
apps[ID] = T::getApplier(t);
}
};