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vcmi/lib/Connection.cpp
Michał W. Urbańczyk bce805dacc Restored Warmonger's changes to artifacts system.
They will be subject of my further work, along with next part of bonus system.
2010-11-10 00:06:25 +00:00

411 lines
9.5 KiB
C++

#define VCMI_DLL
#pragma warning(disable:4355)
#include "Connection.h"
#include <boost/asio.hpp>
#include <boost/thread.hpp>
#include <fstream>
#ifndef _MSC_VER
#include "../lib/RegisterTypes.cpp"
#include "../hch/CObjectHandler.h"
#endif
//for smart objs serialization over net
#include "../lib/CMapInfo.h"
#include "../StartInfo.h"
#include "CGameState.h"
#include "map.h"
#include "../hch/CObjectHandler.h"
#include "../hch/CCreatureHandler.h"
#include "VCMI_Lib.h"
#include "../hch/CArtHandler.h"
#include "../hch/CHeroHandler.h"
#include "../hch/CTownHandler.h"
#include "../hch/CCampaignHandler.h"
#include "NetPacks.h"
/*
* Connection.cpp, 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
*
*/
using namespace boost;
using namespace boost::asio::ip;
template<typename Serializer> DLL_EXPORT void registerTypes(Serializer &s); //defined elsewhere and explicitly instantiated for used serializers
CTypeList typeList;
#define LOG(a) \
if(logging)\
out << a
#if defined(__hppa__) || \
defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
(defined(__MIPS__) && defined(__MISPEB__)) || \
defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
defined(__sparc__)
#define BIG_ENDIAN
#else
#define LIL_ENDIAN
#endif
void CConnection::init()
{
CISer<CConnection>::smartPointerSerialization = false;
COSer<CConnection>::smartPointerSerialization = false;
registerTypes(static_cast<CISer<CConnection>&>(*this));
registerTypes(static_cast<COSer<CConnection>&>(*this));
#ifdef LIL_ENDIAN
myEndianess = true;
#else
myEndianess = false;
#endif
connected = true;
std::string pom;
//we got connection
(*this) << std::string("Aiya!\n") << name << myEndianess; //identify ourselves
(*this) >> pom >> pom >> contactEndianess;
tlog0 << "Established connection with "<<pom<<std::endl;
wmx = new boost::mutex;
rmx = new boost::mutex;
handler = NULL;
receivedStop = sendStop = false;
static int cid = 1;
connectionID = cid++;
}
CConnection::CConnection(std::string host, std::string port, std::string Name)
:io_service(new asio::io_service), name(Name)
{
int i;
boost::system::error_code error = asio::error::host_not_found;
socket = new tcp::socket(*io_service);
tcp::resolver resolver(*io_service);
tcp::resolver::iterator end, pom, endpoint_iterator = resolver.resolve(tcp::resolver::query(host,port),error);
if(error)
{
tlog1 << "Problem with resolving: " << std::endl << error <<std::endl;
goto connerror1;
}
pom = endpoint_iterator;
if(pom != end)
tlog0<<"Found endpoints:" << std::endl;
else
{
tlog1 << "Critical problem: No endpoints found!" << std::endl;
goto connerror1;
}
i=0;
while(pom != end)
{
tlog0 << "\t" << i << ": " << (boost::asio::ip::tcp::endpoint&)*pom << std::endl;
pom++;
}
i=0;
while(endpoint_iterator != end)
{
tlog0 << "Trying connection to " << (boost::asio::ip::tcp::endpoint&)*endpoint_iterator << " (" << i++ << ")" << std::endl;
socket->connect(*endpoint_iterator, error);
if(!error)
{
init();
return;
}
else
{
tlog1 << "Problem with connecting: " << std::endl << error << std::endl;
}
endpoint_iterator++;
}
//we shouldn't be here - error handling
connerror1:
tlog1 << "Something went wrong... checking for error info" << std::endl;
if(error)
tlog1 << error <<std::endl;
else
tlog1 << "No error info. " << std::endl;
delete io_service;
//delete socket;
throw std::string("Can't establish connection :(");
}
CConnection::CConnection(TSocket * Socket, std::string Name )
:socket(Socket),io_service(&Socket->io_service()), name(Name)//, send(this), rec(this)
{
init();
}
CConnection::CConnection(TAcceptor * acceptor, boost::asio::io_service *Io_service, std::string Name)
: name(Name)//, send(this), rec(this)
{
boost::system::error_code error = asio::error::host_not_found;
socket = new tcp::socket(*io_service);
acceptor->accept(*socket,error);
if (error)
{
tlog1 << "Error on accepting: " << std::endl << error << std::endl;
delete socket;
throw "Can't establish connection :(";
}
init();
}
int CConnection::write(const void * data, unsigned size)
{
//LOG("Sending " << size << " byte(s) of data" <<std::endl);
try
{
int ret;
ret = asio::write(*socket,asio::const_buffers_1(asio::const_buffer(data,size)));
return ret;
}
catch(...)
{
//connection has been lost
connected = false;
throw;
}
}
int CConnection::read(void * data, unsigned size)
{
//LOG("Receiving " << size << " byte(s) of data" <<std::endl);
try
{
int ret = asio::read(*socket,asio::mutable_buffers_1(asio::mutable_buffer(data,size)));
return ret;
}
catch(...)
{
//connection has been lost
connected = false;
throw;
}
}
CConnection::~CConnection(void)
{
if(handler)
handler->join();
delete handler;
close();
delete io_service;
delete wmx;
delete rmx;
}
template<class T>
CConnection & CConnection::operator&(const T &t) {
throw new std::exception();
//XXX this is temporaly ? solution to fix gcc (4.3.3, other?) compilation
// problem for more details contact t0@czlug.icis.pcz.pl or impono@gmail.com
// do not remove this exception it shoudnt be called
return *this;
}
void CConnection::close()
{
if(socket)
{
socket->close();
delete socket;
socket = NULL;
}
}
bool CConnection::isOpen() const
{
return socket && connected;
}
void CConnection::reportState(CLogger &out)
{
out << "CConnection\n";
if(socket && socket->is_open())
{
out << "\tWe have an open and valid socket\n";
out << "\t" << socket->available() <<" bytes awaiting\n";
}
}
CPack * CConnection::retreivePack()
{
CPack *ret = NULL;
boost::unique_lock<boost::mutex> lock(*rmx);
tlog5 << "Listening... ";
*this >> ret;
tlog5 << "\treceived server message of type " << typeid(*ret).name() << std::endl;
return ret;
}
CSaveFile::CSaveFile( const std::string &fname )
:sfile(NULL)
{
registerTypes(*this);
openNextFile(fname);
}
CSaveFile::~CSaveFile()
{
delete sfile;
}
int CSaveFile::write( const void * data, unsigned size )
{
sfile->write((char *)data,size);
return size;
}
void CSaveFile::close()
{
delete sfile;
sfile = NULL;
}
void CSaveFile::openNextFile(const std::string &fname)
{
fName = fname;
close();
sfile = new std::ofstream(fname.c_str(),std::ios::binary);
if(!(*sfile))
{
tlog1 << "Error: cannot open to write " << fname << std::endl;
sfile = NULL;
}
else
{
sfile->write("VCMI",4); //write magic identifier
*this << version; //write format version
}
}
void CSaveFile::reportState(CLogger &out)
{
out << "CSaveFile" << std::endl;
if(sfile && *sfile)
{
out << "\tOpened " << fName << "\n\tPosition: " << sfile->tellp() << std::endl;
}
}
CLoadFile::CLoadFile(const std::string &fname, int minimalVersion /*= version*/)
:sfile(NULL)
{
registerTypes(*this);
openNextFile(fname, minimalVersion);
}
CLoadFile::~CLoadFile()
{
delete sfile;
}
int CLoadFile::read( const void * data, unsigned size )
{
sfile->read((char *)data,size);
return size;
}
void CLoadFile::close()
{
delete sfile;
sfile = NULL;
}
void CLoadFile::openNextFile(const std::string &fname, int minimalVersion)
{
fName = fname;
sfile = new std::ifstream(fname.c_str(),std::ios::binary);
if(!(*sfile))
{
tlog1 << "Error: cannot open to read " << fname << std::endl;
sfile = NULL;
}
else
{
char buffer[4];
sfile->read(buffer, 4);
if(std::memcmp(buffer,"VCMI",4))
{
tlog1 << "Error: not a VCMI file! ( " << fname << " )\n";
delete sfile;
sfile = NULL;
return;
}
*this >> myVersion;
if(myVersion < minimalVersion)
{
tlog1 << "Error: Old file format! (file " << fname << " )\n";
delete sfile;
sfile = NULL;
}
}
}
void CLoadFile::reportState(CLogger &out)
{
out << "CLoadFile" << std::endl;
if(sfile && *sfile)
{
out << "\tOpened " << fName << "\n\tPosition: " << sfile->tellg() << std::endl;
}
}
CTypeList::CTypeList()
{
registerTypes(*this);
}
ui16 CTypeList::registerType( const std::type_info *type )
{
TTypeMap::const_iterator i = types.find(type);
if(i != types.end())
return i->second; //type found, return ID
//type not found - add it to the list and return given ID
ui16 id = types.size() + 1;
types.insert(std::make_pair(type,id));
return id;
}
ui16 CTypeList::getTypeID( const std::type_info *type )
{
TTypeMap::const_iterator i = types.find(type);
if(i != types.end())
return i->second;
else
return 0;
}
std::ostream & operator<<(std::ostream &str, const CConnection &cpc)
{
return str << "Connection with " << cpc.name << " (ID: " << cpc.connectionID << /*", " << (cpc.host ? "host" : "guest") <<*/ ")";
}
CSerializer::~CSerializer()
{
}
CSerializer::CSerializer()
{
smartVectorMembersSerialization = false;
}
void CSerializer::addStdVecItems(CGameState *gs, LibClasses *lib)
{
registerVectoredType(&gs->map->objects, &CGObjectInstance::id);
registerVectoredType(&lib->heroh->heroes, &CHero::ID);
registerVectoredType(&lib->creh->creatures, &CCreature::idNumber);
registerVectoredType(&lib->arth->artifacts, &CArtifact::id);
registerVectoredType(&gs->map->artInstances, &IModableArt::ID);
smartVectorMembersSerialization = true;
}