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#include "connectionbase.h"
#include <boost/serialization/vector.hpp>
#include <boost/serialization/string.hpp>
#include <boost/serialization/shared_ptr.hpp>
#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
#include <cstring>
#include <sstream>
#include <exception>
#include <stdexcept>
#include <iostream>
void ConnectionBase::start_recv() {
request_data(4);
}
void ConnectionBase::got_data(uint8_t* data, std::size_t bytes) {
if(pending_size == 0) {
if(bytes != 4) {
error("Deserialization header error.");
}
uint16_t* header = (uint16_t*)data;
pending_type = (Message::Type)header[0];
pending_size = (std::size_t)header[1];
if(pending_size) {
request_data(pending_size);
return;
}
bytes = 0;
}
if(bytes != pending_size) {
std::cout << "Bytes: " << bytes << " Pending size: " << pending_size << std::endl;
error("Deserialization attempted with incomplete data.");
// TODO: Calling got_data() with incomplete data should be allowed.
}
pending_size = 0;
try {
// Create Boost.Serialization archive of data.
std::istringstream is(std::string((char*)data, bytes));
boost::archive::binary_iarchive ia(is);
switch(pending_type) {
case Message::Types::Hello: {
Message::Hello::p m = make_shared<Message::Hello>();
ia & m;
got_message(m);
} break;
case Message::Types::Login: {
Message::Login::p m = make_shared<Message::Login>();
ia & m;
got_message(m);
} break;
case Message::Types::LoginResponse: {
Message::LoginResponse::p m = make_shared<Message::LoginResponse>();
ia & m;
got_message(m);
} break;
case Message::Types::LobbyStatus: {
Message::LobbyStatus::p m = make_shared<Message::LobbyStatus>();
ia & m;
got_message(m);
} break;
case Message::Types::LobbyAction: {
Message::LobbyAction::p m = make_shared<Message::LobbyAction>();
ia & m;
got_message(m);
} break;
case Message::Types::GameStart: {
Message::GameStart::p m = make_shared<Message::GameStart>();
ia & m;
got_message(m);
} break;
case Message::Types::Ready: {
Message::Ready::p m = make_shared<Message::Ready>();
ia & m;
got_message(m);
} break;
case Message::Types::RoundStart: {
Message::RoundStart::p m = make_shared<Message::RoundStart>();
ia & m;
got_message(m);
} break;
case Message::Types::RoundState: {
Message::RoundState::p m = make_shared<Message::RoundState>();
ia & m;
got_message(m);
} break;
case Message::Types::RoundAction: {
Message::RoundAction::p m = make_shared<Message::RoundAction>();
ia & m;
got_message(m);
} break;
case Message::Types::RoundEnd: {
Message::RoundEnd::p m = make_shared<Message::RoundEnd>();
ia & m;
got_message(m);
} break;
default:
throw std::runtime_error("Deserialization attempted on unknown message type.");
}
} catch(std::exception& e) {
error(std::string("Deserialization failed: ") + e.what());
}
}
void ConnectionBase::send(const Message::p& msg) {
// Create Boost.Serialization archive.
std::ostringstream os;
boost::archive::binary_oarchive oa(os);
switch(msg->type) {
case Message::Types::Hello: {
Message::Hello::p m = dynamic_pointer_cast<Message::Hello>(msg);
oa & m;
} break;
case Message::Types::Login: {
Message::Login::p m = dynamic_pointer_cast<Message::Login>(msg);
oa & m;
} break;
case Message::Types::LoginResponse: {
Message::LoginResponse::p m = dynamic_pointer_cast<Message::LoginResponse>(msg);
oa & m;
} break;
case Message::Types::LobbyStatus: {
Message::LobbyStatus::p m = dynamic_pointer_cast<Message::LobbyStatus>(msg);
oa & m;
} break;
case Message::Types::LobbyAction: {
Message::LobbyAction::p m = dynamic_pointer_cast<Message::LobbyAction>(msg);
oa & m;
} break;
case Message::Types::GameStart: {
Message::GameStart::p m = dynamic_pointer_cast<Message::GameStart>(msg);
oa & m;
} break;
case Message::Types::Ready: {
Message::Ready::p m = dynamic_pointer_cast<Message::Ready>(msg);
oa & m;
} break;
case Message::Types::RoundStart: {
Message::RoundStart::p m = dynamic_pointer_cast<Message::RoundStart>(msg);
oa & m;
} break;
case Message::Types::RoundState: {
Message::RoundState::p m = dynamic_pointer_cast<Message::RoundState>(msg);
oa & m;
} break;
case Message::Types::RoundAction: {
Message::RoundAction::p m = dynamic_pointer_cast<Message::RoundAction>(msg);
oa & m;
} break;
case Message::Types::RoundEnd: {
Message::RoundEnd::p m = dynamic_pointer_cast<Message::RoundEnd>(msg);
oa & m;
} break;
default:
throw std::runtime_error("Serialization attempted on unknown message type.");
}
// Extract data.
std::string s = os.str();
// Allocate buffer.
uint8_t* buf = new uint8_t[4 + s.size()];
// Write header.
uint16_t* header = (uint16_t*)buf;
header[0] = uint16_t(msg->type);
header[1] = uint16_t(s.size());
// Copy data.
memcpy(buf + 4, s.c_str(), s.size());
// Send buffer.
write_data(buf, 4 + s.size());
}
ConnectionBase::ConnectionBase() {
pending_size = 0;
}
ConnectionBase::~ConnectionBase() {
std::cout << "Connection destroyed." << std::endl;
}
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