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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.
*
*/
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/networking/curl/connectionmanager.h"
#include "backends/networking/curl/networkreadstream.h"
#include "common/debug.h"
#include "common/system.h"
#include "common/timer.h"
#include <curl/curl.h>
using Common::Singleton;
DECLARE_SINGLETON(Networking::ConnectionManager);
namespace Networking {
ConnectionManager::ConnectionManager(): _multi(0), _timerStarted(false) {
curl_global_init(CURL_GLOBAL_ALL);
_multi = curl_multi_init();
}
ConnectionManager::~ConnectionManager() {
curl_multi_cleanup(_multi);
curl_global_cleanup();
}
void ConnectionManager::registerEasyHandle(CURL *easy) {
curl_multi_add_handle(_multi, easy);
}
void ConnectionManager::addRequest(Request *request) {
_requests.push_back(request);
if (!_timerStarted) startTimer();
}
//private goes here:
void connectionsThread(void *ignored) {
ConnMan.handle();
}
void ConnectionManager::startTimer(int interval) {
Common::TimerManager *manager = g_system->getTimerManager();
if (manager->installTimerProc(connectionsThread, interval, 0, "Networking::ConnectionManager's Timer")) {
_timerStarted = true;
} else {
warning("Failed to install Networking::ConnectionManager's timer");
}
}
void ConnectionManager::stopTimer() {
Common::TimerManager *manager = g_system->getTimerManager();
manager->removeTimerProc(connectionsThread);
_timerStarted = false;
}
void ConnectionManager::handle() {
//TODO: lock mutex here (in case another handle() would be called before this one ends)
interateRequests();
processTransfers();
//TODO: unlock mutex here
}
void ConnectionManager::interateRequests() {
//call handle() of all running requests (so they can do their work)
debug("handler's here");
for (Common::Array<Request *>::iterator i = _requests.begin(); i != _requests.end();) {
if ((*i)->handle()) {
delete (*i);
_requests.erase(i);
} else ++i;
}
if (_requests.empty()) stopTimer();
}
void ConnectionManager::processTransfers() {
//check libcurl's transfers and notify requests of messages from queue (transfer completion or failure)
int transfersRunning;
curl_multi_perform(_multi, &transfersRunning);
int messagesInQueue;
CURLMsg *curlMsg;
while ((curlMsg = curl_multi_info_read(_multi, &messagesInQueue))) {
CURL *easyHandle = curlMsg->easy_handle;
NetworkReadStream *stream;
curl_easy_getinfo(easyHandle, CURLINFO_PRIVATE, &stream);
if (stream) stream->finished();
if (curlMsg->msg == CURLMSG_DONE) {
debug("ConnectionManager: SUCCESS (%d - %s)", curlMsg->data.result, curl_easy_strerror(curlMsg->data.result));
} else {
debug("ConnectionManager: FAILURE (CURLMsg (%d))", curlMsg->msg);
}
curl_multi_remove_handle(_multi, easyHandle);
}
}
} //end of namespace Cloud
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