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/*
* The Mana World Server
* Copyright 2007 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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 any later version.
*
* The Mana World 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 The Mana World; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "utils/tokencollector.hpp"
/* We are optimistic and we assume that clients connect as soon as possible.
It means that pending data are mainly outdated ones, except for the newer
ones. So we search the lists backward (from newer to older) for already
inserted data. On the contrary, data are removed when there was a network
failure, especially a timeout. So we search the lists forward when removing
data, in order to start from the older ones. */
void TokenCollectorBase::insertClient(std::string const &token, intptr_t data)
{
for (std::list<Item>::reverse_iterator it = mPendingConnects.rbegin(),
it_end = mPendingConnects.rend(); it != it_end; ++it)
{
if (it->token == token)
{
foundMatch(data, it->data);
mPendingConnects.erase(--it.base());
return;
}
}
time_t current = time(NULL);
Item item;
item.token = token;
item.data = data;
item.timeStamp = current;
mPendingClients.push_back(item);
removeOutdated(current);
}
void TokenCollectorBase::insertConnect(std::string const &token, intptr_t data)
{
for (std::list<Item>::reverse_iterator it = mPendingClients.rbegin(),
it_end = mPendingClients.rend(); it != it_end; ++it)
{
if (it->token == token)
{
foundMatch(it->data, data);
mPendingClients.erase(--it.base());
return;
}
}
time_t current = time(NULL);
Item item;
item.token = token;
item.data = data;
item.timeStamp = current;
mPendingConnects.push_back(item);
removeOutdated(current);
}
void TokenCollectorBase::removeClient(intptr_t data)
{
for (std::list<Item>::iterator it = mPendingClients.begin(),
it_end = mPendingClients.end(); it != it_end; ++it)
{
if (it->data == data)
{
mPendingClients.erase(it);
return;
}
}
}
void TokenCollectorBase::removeOutdated(time_t current)
{
// Timeout happens after 30 seconds. Much longer may actually pass, though.
time_t threshold = current - 30;
if (threshold < mLastCheck) return;
std::list<Item>::iterator it;
it = mPendingConnects.begin();
while (it != mPendingConnects.end() && it->timeStamp < threshold)
{
removedConnect(it->data);
it = mPendingConnects.erase(it);
}
it = mPendingClients.begin();
while (it != mPendingClients.end() && it->timeStamp < threshold)
{
removedClient(it->data);
it = mPendingClients.erase(it);
}
mLastCheck = current;
}
TokenCollectorBase::TokenCollectorBase():
mLastCheck(time(NULL))
{
}
TokenCollectorBase::~TokenCollectorBase()
{
// Not declared inline, as the list destructors are not trivial.
}
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