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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 "Request.h"
#include "RequestHandlers/DisconnectRequestHandler.h"
#include "Logger.h"
#include <Net/Packets/ErrorPacket.h>
#include <sigc++/bind.h>
#include <sigc++/retype_return.h>
namespace Mad {
namespace Common {
std::auto_ptr<RequestManager> RequestManager::requestManager;
RequestManager::RequestMap::~RequestMap() {
for(iterator it = begin(); it != end(); ++it)
delete it->second;
}
bool RequestManager::RequestMap::addRequest(uint16_t id, RequestHandler *info) {
if(!insert(std::make_pair(id, info)).second)
return false;
info->signalFinished().connect(sigc::hide_return(sigc::bind(sigc::mem_fun(this, &RequestManager::RequestMap::deleteRequest), id)));
return true;
}
RequestHandler* RequestManager::RequestMap::findRequest(uint16_t id) {
iterator it = find(id);
if(it == end())
return 0;
return it->second;
}
bool RequestManager::RequestMap::deleteRequest(uint16_t id) {
iterator it = find(id);
if(it == end())
return false;
delete it->second;
erase(it);
return true;
}
void RequestManager::receiveHandler(Net::Connection *connection, const Net::Packet &packet) {
std::map<Net::Connection*,RequestMap*>::iterator it = requestMaps.find(connection);
if(it == requestMaps.end()) {
// TODO: Error
Logger::log(Logger::ERROR, "Received a packet from an unregistered connection.");
return;
}
RequestMap *requestMap = it->second;
RequestHandler *request = requestMap->findRequest(packet.getRequestId());
if(request) {
request->handlePacket(connection, packet);
return;
}
std::map<Net::Packet::Type,RequestHandlerFactory*>::iterator factoryIt = requestHandlerFactories.find(packet.getType());
if(factoryIt != requestHandlerFactories.end()) {
request = factoryIt->second->createRequestHandler();
requestMap->addRequest(packet.getRequestId(), request);
request->handlePacket(connection, packet);
return;
}
Logger::log(Logger::ERROR, "Received an unexpected packet.");
connection->send(Net::Packets::ErrorPacket(Net::Packet::ERROR, packet.getRequestId(), Exception(Exception::UNEXPECTED_PACKET)));
}
bool RequestManager::sendRequest(Net::Connection *connection, std::auto_ptr<RequestBase> request) {
std::map<Net::Connection*,RequestMap*>::iterator it = requestMaps.find(connection);
if(it == requestMaps.end()) {
Logger::log(Logger::CRITICAL, "Trying to send a request over an unregistered connecion.");
return false;
}
RequestMap *requestMap = it->second;
uint16_t id;
do {
id = getRequestId();
} while(requestMap->findRequest(id));
request->sendRequest(connection, id);
requestMap->addRequest(id, request.release());
return true;
}
void RequestManager::registerConnection(Net::Connection *connection) {
requestMaps.insert(std::make_pair(connection, new RequestMap()));
connection->signalReceive().connect(sigc::mem_fun(this, &RequestManager::receiveHandler));
}
void RequestManager::unregisterConnection(Net::Connection *connection) {
std::map<Net::Connection*,RequestMap*>::iterator it = requestMaps.find(connection);
if(it == requestMaps.end())
return;
delete it->second;
requestMaps.erase(it);
}
void RequestManager::unregisterPacketType(Net::Packet::Type type) {
std::map<Net::Packet::Type,RequestHandlerFactory*>::iterator it = requestHandlerFactories.find(type);
if(it == requestHandlerFactories.end())
return;
delete it->second;
requestHandlerFactories.erase(it);
}
RequestManager::RequestManager(bool core) : requestId(core ? -2 : -1) {
registerPacketType<RequestHandlers::DisconnectRequestHandler>(Net::Packet::DISCONNECT);
}
RequestManager::~RequestManager() {
for(std::map<Net::Connection*,RequestMap*>::iterator it = requestMaps.begin(); it != requestMaps.end(); ++it)
delete it->second;
for(std::map<Net::Packet::Type,RequestHandlerFactory*>::iterator it = requestHandlerFactories.begin(); it != requestHandlerFactories.end(); ++it)
delete it->second;
}
}
}
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