X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Ftimer.h;h=9bb7128b85ac7f6283ec51a0e6986fc7464a6a1d;hb=402a1bb010522a35600325c1a3084e092b40ca22;hp=143ff4d9701d58d5b8b8f9bd3a3540a5eaa335d6;hpb=7907a1f1cc78ca532547c824cd221060b57f4fff;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/timer.h b/include/timer.h index 143ff4d97..9bb7128b8 100644 --- a/include/timer.h +++ b/include/timer.h @@ -1,17 +1,154 @@ -class InspTimer +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2007-2008 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006-2007 Craig Edwards + * + * 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 . + */ + + +#ifndef INSPIRCD_TIMER_H +#define INSPIRCD_TIMER_H + +/** Timer class for one-second resolution timers + * Timer provides a facility which allows module + * developers to create one-shot timers. The timer + * can be made to trigger at any time up to a one-second + * resolution. To use Timer, inherit a class from + * Timer, then insert your inherited class into the + * queue using Server::AddTimer(). The Tick() method of + * your object (which you should override) will be called + * at the given time. + */ +class CoreExport Timer { private: + /** The triggering time + */ time_t trigger; + /** Number of seconds between triggers + */ + long secs; + /** True if this is a repeating timer + */ + bool repeat; public: - InspTimer(long secs_from_now) : trigger(time(NULL) + secs_from_now) { } - virtual ~InspTimer() { } + /** Default constructor, initializes the triggering time + * @param secs_from_now The number of seconds from now to trigger the timer + * @param now The time now + * @param repeating Repeat this timer every secs_from_now seconds if set to true + */ + Timer(long secs_from_now, time_t now, bool repeating = false) + { + trigger = now + secs_from_now; + secs = secs_from_now; + repeat = repeating; + } + + /** Default destructor, does nothing. + */ + virtual ~Timer() { } + + /** Retrieve the current triggering time + */ virtual time_t GetTimer() { return trigger; } - virtual void Tick(time_t TIME) {} + + /** Sets the trigger timeout to a new value + */ + virtual void SetTimer(time_t t) + { + trigger = t; + } + + /** Called when the timer ticks. + * You should override this method with some useful code to + * handle the tick event. + */ + virtual void Tick(time_t TIME) = 0; + + /** Returns true if this timer is set to repeat + */ + bool GetRepeat() + { + return repeat; + } + + /** Returns the interval (number of seconds between ticks) + * of this timer object. + */ + long GetSecs() + { + return secs; + } + + /** Cancels the repeat state of a repeating timer. + * If you call this method, then the next time your + * timer ticks, it will be removed immediately after. + * You should use this method call to remove a recurring + * timer if you wish to do so within the timer's Tick + * event, as calling TimerManager::DelTimer() from within + * the Timer::Tick() method is dangerous and may + * cause a segmentation fault. Calling CancelRepeat() + * is safe in this case. + */ + void CancelRepeat() + { + repeat = false; + } +}; + + +/** This class manages sets of Timers, and triggers them at their defined times. + * This will ensure timers are not missed, as well as removing timers that have + * expired and allowing the addition of new ones. + */ +class CoreExport TimerManager +{ + protected: + /** A list of all pending timers + */ + std::vector Timers; + + public: + /** Constructor + */ + TimerManager(); + ~TimerManager(); + + /** Tick all pending Timers + * @param TIME the current system time + */ + void TickTimers(time_t TIME); + + /** Add an Timer + * @param T an Timer derived class to add + */ + void AddTimer(Timer *T); + + /** Delete an Timer + * @param T an Timer derived class to delete + */ + void DelTimer(Timer* T); + + /** Compares two timers + */ + static bool TimerComparison( Timer *one, Timer*two); }; -void TickTimers(time_t TIME); -void AddTimer(InspTimer* T); +#endif