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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef BACKENDS_NETWORKING_CURL_CONNECTIONMANAGER_H
#define BACKENDS_NETWORKING_CURL_CONNECTIONMANAGER_H
#include "backends/networking/curl/request.h"
#include "common/str.h"
#include "common/singleton.h"
#include "common/hashmap.h"
typedef void CURL;
typedef void CURLM;
struct curl_slist;
namespace Networking {
class NetworkReadStream;
enum RequestState {
PROCESSING,
PAUSED,
RETRY,
FINISHED
};
struct RequestInfo {
int32 id;
Request *request;
RequestState state;
void *data;
uint32 retryInSeconds;
RequestInfo() : id(-1), request(0), state(FINISHED), data(0), retryInSeconds(0) {}
RequestInfo(int32 rqId, Request *rq) : id(rqId), request(rq), state(PROCESSING), data(0), retryInSeconds(0) {}
};
class ConnectionManager : public Common::Singleton<ConnectionManager> {
friend void connectionsThread(void *); //calls handle()
CURLM *_multi;
bool _timerStarted;
Common::HashMap<int32, RequestInfo> _requests;
int32 _nextId;
void startTimer(int interval = 1000000); //1 second is the default interval
void stopTimer();
void handle();
void interateRequests();
void processTransfers();
public:
ConnectionManager();
virtual ~ConnectionManager();
/**
* All libcurl transfers are going through this ConnectionManager.
* So, if you want to start any libcurl transfer, you must create
* an easy handle and register it using this method.
*/
void registerEasyHandle(CURL *easy);
/**
* Use this method to add new Request into manager's queue.
* Manager will periodically call handle() method of these
* Requests until they return true.
*
* @note This method starts the timer if it's not started yet.
*
* @return generated Request's id, which might be used to get its status
*/
int32 addRequest(Request *request);
RequestInfo &getRequestInfo(int32 id);
};
/** Shortcut for accessing the connection manager. */
#define ConnMan Networking::ConnectionManager::instance()
} //end of namespace Networking
#endif
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