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/*
* RequestManager.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "RequestManager.h"
#include "RequestHandlers/DisconnectRequestHandler.h"
#include "Logger.h"
#include <boost/bind.hpp>
namespace Mad {
namespace Common {
RequestManager RequestManager::requestManager;
bool RequestManager::RequestMap::addRequest(boost::uint16_t id, boost::shared_ptr<RequestHandler> info) {
if(!insert(std::make_pair(id, info)).second)
return false;
info->connectSignalFinished(boost::bind(&RequestManager::RequestMap::deleteRequest, this, id));
return true;
}
boost::shared_ptr<RequestHandler> RequestManager::RequestMap::findRequest(boost::uint16_t id) {
iterator it = find(id);
if(it == end())
return boost::shared_ptr<RequestHandler>();
return it->second;
}
bool RequestManager::RequestMap::deleteRequest(boost::uint16_t id) {
return erase(id);
}
void RequestManager::receiveHandler(Connection *connection, const XmlPacket &packet, boost::uint16_t requestId) {
boost::upgrade_lock<boost::shared_mutex> lock(mutex);
std::map<Connection*, boost::shared_ptr<RequestMap> >::iterator it = requestMaps.find(connection);
if(it == requestMaps.end()) {
// TODO: Error
Logger::log(Logger::ERROR, "Received a packet from an unregistered connection.");
return;
}
boost::shared_ptr<RequestMap> requestMap = it->second;
boost::shared_ptr<RequestHandler> request = requestMap->findRequest(requestId);
if(request) {
lock.unlock();
request->handlePacket(packet);
return;
}
std::map<std::string, boost::shared_ptr<RequestHandlerFactory> >::iterator factoryIt = requestHandlerFactories.find(packet.getType());
if(factoryIt != requestHandlerFactories.end()) {
{
boost::upgrade_to_unique_lock<boost::shared_mutex> upgradeLock(lock);
request = factoryIt->second->createRequestHandler(connection, requestId);
requestMap->addRequest(requestId, request);
}
lock.unlock();
request->handlePacket(packet);
return;
}
lock.unlock();
Logger::logf(Logger::ERROR, "Received an unexpected packet with type '%s'.", packet.getType().c_str());
XmlPacket ret;
ret.setType("Error");
ret.add("ErrorCode", Net::Exception::UNEXPECTED_PACKET);
connection->sendPacket(ret, requestId);
}
boost::shared_ptr<RequestManager::RequestMap> RequestManager::_getUnusedRequestId(Connection *connection, boost::uint16_t *requestId) {
std::map<Connection*, boost::shared_ptr<RequestMap> >::iterator it = requestMaps.find(connection);
if(it == requestMaps.end()) {
Logger::log(Logger::CRITICAL, "Trying to send a request over an unregistered connecion.");
return boost::shared_ptr<RequestMap>();
}
boost::shared_ptr<RequestMap> requestMap = it->second;
do {
*requestId = _getRequestId();
} while(requestMap->findRequest(*requestId));
return requestMap;
}
void RequestManager::registerConnection(Connection *connection) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
requestMaps.insert(std::make_pair(connection, new RequestMap()));
connection->connectSignalReceive(boost::bind(&RequestManager::receiveHandler, this, connection, _1, _2));
}
RequestManager::RequestManager() : server(false), lastRequestId(-1) {
registerPacketType<RequestHandlers::DisconnectRequestHandler>("Disconnect");
}
}
}
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