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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2015 Attila Molnar <attilamolnar@hush.com>
*
* This file is part of InspIRCd. InspIRCd 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, version 2.
*
* 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/>.
*/
#pragma once
class TreeServer;
/** Handles PINGing servers and killing them on timeout
*/
class PingTimer : public Timer
{
enum State
{
/** Send PING next */
PS_SENDPING,
/** Warn opers next */
PS_WARN,
/** Kill the server next due to ping timeout */
PS_TIMEOUT,
/** Do nothing */
PS_IDLE
};
/** Server the timer is interacting with
*/
TreeServer* const server;
/** What to do when the timer ticks next
*/
State state;
/** Last ping time in milliseconds, used to calculate round trip time
*/
unsigned long LastPingMsec;
/** Update internal state and reschedule timer according to the new state
* @param newstate State to change to
*/
void SetState(State newstate);
/** Process timer tick event
* @return State to change to
*/
State TickInternal();
/** Called by the TimerManager when the timer expires
* @param currtime Time now
* @return Always false, we reschedule ourselves instead
*/
bool Tick(time_t currtime) CXX11_OVERRIDE;
public:
/** Construct the timer. This doesn't schedule the timer.
* @param server TreeServer to interact with
*/
PingTimer(TreeServer* server);
/** Register a PONG from the server
*/
void OnPong();
};
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