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/*
* RequestManager.h
*
* 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/>.
*/
#ifndef MAD_COMMON_REQUESTMANAGER_H_
#define MAD_COMMON_REQUESTMANAGER_H_
#include "Request.h"
#include <map>
#include <memory>
#include <string>
#include <boost/thread/locks.hpp>
#include <boost/thread/shared_mutex.hpp>
namespace Mad {
namespace Net {
class Packet;
}
namespace Common {
class RequestManager : boost::noncopyable {
private:
class RequestMap : private std::map<boost::uint16_t, boost::shared_ptr<RequestHandler> >, boost::noncopyable {
public:
bool addRequest(boost::uint16_t id, boost::shared_ptr<RequestHandler> info);
boost::shared_ptr<RequestHandler> findRequest(boost::uint16_t id);
bool deleteRequest(boost::uint16_t id);
};
class RequestHandlerFactory {
protected:
RequestHandlerFactory() {}
public:
virtual boost::shared_ptr<RequestHandler> createRequestHandler(Connection *connection, boost::uint16_t requestId) = 0;
virtual ~RequestHandlerFactory() {}
};
template<class T> class SpecificRequestHandlerFactory : public RequestHandlerFactory {
public:
virtual boost::shared_ptr<RequestHandler> createRequestHandler(Connection *connection, boost::uint16_t requestId) {
return boost::shared_ptr<RequestHandler>(new T(connection, requestId));
}
};
static RequestManager requestManager;
boost::shared_mutex mutex;
std::map<Connection*, boost::shared_ptr<RequestMap> > requestMaps;
bool server;
boost::uint16_t lastRequestId;
std::map<std::string, boost::shared_ptr<RequestHandlerFactory> > requestHandlerFactories;
boost::uint16_t _getRequestId() {
return lastRequestId+=2;
}
void receiveHandler(Connection *connection, const XmlPacket &packet, boost::uint16_t requestId);
boost::shared_ptr<RequestMap> _getUnusedRequestId(Connection *connection, boost::uint16_t *requestId);
bool send(Request *request);
RequestManager();
public:
static RequestManager* get() {
return &requestManager;
}
bool isServer() {
boost::shared_lock<boost::shared_mutex> lock(mutex);
return server;
}
void setServer(bool newServer) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
server = newServer;
if(server)
lastRequestId &= ~0x01;
else
lastRequestId |= 0x01;
}
void registerConnection(Connection *connection);
void unregisterConnection(Connection *connection) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
requestMaps.erase(connection);
}
template <class T> void registerPacketType(const std::string &type) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
requestHandlerFactories.insert(std::make_pair(type, boost::shared_ptr<SpecificRequestHandlerFactory<T> >(new SpecificRequestHandlerFactory<T>())));
}
void unregisterPacketType(const std::string &type) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
requestHandlerFactories.erase(type);
}
template <class T>
bool sendRequest(Connection *connection, Request::slot_type slot) {
boost::unique_lock<boost::shared_mutex> lock(mutex);
boost::shared_ptr<RequestMap> requestMap;
boost::uint16_t requestId;
requestMap = _getUnusedRequestId(connection, &requestId);
if(!requestMap)
return false;
boost::shared_ptr<Request> request(new T(connection, requestId, slot));
requestMap->addRequest(requestId, request);
lock.unlock();
request->sendRequest();
return true;
}
template <class T, typename T1>
bool sendRequest(Connection *connection, Request::slot_type slot, T1 t1) {
boost::unique_lock<boost::shared_mutex> lock(mutex);
boost::shared_ptr<RequestMap> requestMap;
boost::uint16_t requestId;
requestMap = _getUnusedRequestId(connection, &requestId);
if(!requestMap)
return false;
boost::shared_ptr<Request> request(new T(connection, requestId, slot, t1));
requestMap->addRequest(requestId, request);
lock.unlock();
request->sendRequest();
return true;
}
template <class T, typename T1, typename T2>
bool sendRequest(Connection *connection, Request::slot_type slot, T1 t1, T2 t2) {
boost::unique_lock<boost::shared_mutex> lock(mutex);
boost::shared_ptr<RequestMap> requestMap;
boost::uint16_t requestId;
requestMap = _getUnusedRequestId(connection, &requestId);
if(!requestMap)
return false;
boost::shared_ptr<Request> request(new T(connection, requestId, slot, t1, t2));
requestMap->addRequest(requestId, request);
lock.unlock();
request->sendRequest();
return true;
}
template <class T, typename T1, typename T2, typename T3>
bool sendRequest(Connection *connection, Request::slot_type slot, T1 t1, T2 t2, T3 t3) {
boost::unique_lock<boost::shared_mutex> lock(mutex);
boost::shared_ptr<RequestMap> requestMap;
boost::uint16_t requestId;
requestMap = _getUnusedRequestId(connection, &requestId);
if(!requestMap)
return false;
boost::shared_ptr<T> request(new T(connection, requestId, slot, t1, t2, t3));
requestMap->addRequest(requestId, request);
lock.unlock();
request->sendRequest();
return true;
}
template <class T, typename T1, typename T2, typename T3, typename T4>
bool sendRequest(Connection *connection, Request::slot_type slot, T1 t1, T2 t2, T3 t3, T4 t4) {
boost::unique_lock<boost::shared_mutex> lock(mutex);
boost::shared_ptr<RequestMap> requestMap;
boost::uint16_t requestId;
requestMap = _getUnusedRequestId(connection, &requestId);
if(!requestMap)
return false;
boost::shared_ptr<Request> request(new T(connection, requestId, slot, t1, t2, t3, t4));
requestMap->addRequest(requestId, request);
lock.unlock();
request->sendRequest();
return true;
}
};
}
}
#endif /* MAD_COMMON_REQUESTMANAGER_H_ */
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