1 /* +------------------------------------+
\r * | Inspire Internet Relay Chat Daemon |
\r * +------------------------------------+
\r *
\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team
\r * See: http://www.inspircd.org/wiki/index.php/Credits
\r *
\r * This program is free but copyrighted software; see
\r * the file COPYING for details.
\r *
\r * ---------------------------------------------------
\r */
\r\r#ifndef INSPIRCD_TIMER_H
\r#define INSPIRCD_TIMER_H
\r\rclass InspIRCd;
\r\r/** Timer class for one-second resolution timers
\r * InspTimer provides a facility which allows module
\r * developers to create one-shot timers. The timer
\r * can be made to trigger at any time up to a one-second
\r * resolution. To use InspTimer, inherit a class from
\r * InspTimer, then insert your inherited class into the
\r * queue using Server::AddTimer(). The Tick() method of
\r * your object (which you should override) will be called
\r * at the given time.
\r */
\rclass CoreExport InspTimer : public Extensible
\r{
\r private:
\r /** The triggering time
\r */
\r time_t trigger;
\r /** Number of seconds between triggers
\r */
\r long secs;
\r /** True if this is a repeating timer
\r */
\r bool repeat;
\r public:
\r /** Default constructor, initializes the triggering time
\r * @param secs_from_now The number of seconds from now to trigger the timer
\r * @param now The time now
\r * @param repeating Repeat this timer every secs_from_now seconds if set to true
\r */
\r InspTimer(long secs_from_now,time_t now, bool repeating = false)
\r {
\r trigger = now + secs_from_now;
\r secs = secs_from_now;
\r repeat = repeating;
\r }
\r\r /** Default destructor, does nothing.
\r */
\r virtual ~InspTimer() { }
\r\r /** Retrieve the current triggering time
\r */
\r virtual time_t GetTimer()
\r {
\r return trigger;
\r }
\r\r /** Called when the timer ticks.
\r * You should override this method with some useful code to
\r * handle the tick event.
\r */
\r virtual void Tick(time_t TIME) = 0;
\r\r /** Returns true if this timer is set to repeat
\r */
\r bool GetRepeat()
\r {
\r return repeat;
\r }
\r\r /** Returns the interval (number of seconds between ticks)
\r * of this timer object.
\r */
\r long GetSecs()
\r {
\r return secs;
\r }
\r\r /** Cancels the repeat state of a repeating timer.
\r * If you call this method, then the next time your
\r * timer ticks, it will be removed immediately after.
\r * You should use this method call to remove a recurring
\r * timer if you wish to do so within the timer's Tick
\r * event, as calling TimerManager::DelTimer() from within
\r * the InspTimer::Tick() method is dangerous and may
\r * cause a segmentation fault. Calling CancelRepeat()
\r * is safe in this case.
\r */
\r void CancelRepeat()
\r {
\r repeat = false;
\r }
\r};
\r\r\r/** This class manages sets of InspTimers, and triggers them at their defined times.
\r * This will ensure timers are not missed, as well as removing timers that have
\r * expired and allowing the addition of new ones.
\r */
\rclass CoreExport TimerManager : public Extensible
\r{
\r protected:
\r /** A group of timers all set to trigger at the same time
\r */
\r typedef std::vector<InspTimer*> timergroup;
\r /** A map of timergroups, each group has a specific trigger time
\r */
\r typedef std::map<time_t, timergroup*> timerlist;
\r /** Set when ticking timers, to prevent deletion while iterating
\r */
\r bool CantDeleteHere;
\r /** Creating server instance
\r */
\r InspIRCd* ServerInstance;
\r private:
\r\r /** The current timer set, a map of timergroups
\r */
\r timerlist Timers;
\r\r public:
\r /** Constructor
\r */
\r TimerManager(InspIRCd* Instance);
\r /** Tick all pending InspTimers
\r * @param TIME the current system time
\r */
\r void TickTimers(time_t TIME);
\r /** Add an InspTimer
\r * @param T an InspTimer derived class to add
\r * @param secs_from_now You may set this to the number of seconds
\r * from the current time when the timer will tick, or you may just
\r * leave this unset and the values set by the InspTimers constructor
\r * will be used. This is used internally for re-triggering repeating
\r * timers.
\r */
\r void AddTimer(InspTimer* T, long secs_from_now = 0);
\r /** Delete an InspTimer
\r * @param T an InspTimer derived class to delete
\r */
\r void DelTimer(InspTimer* T);
\r /** Tick any timers that have been missed due to lag
\r * @param TIME the current system time
\r */
\r void TickMissedTimers(time_t TIME);
\r};
\r\r#endif
\r\r