Provide error output on failure to load a core command; to console on startup, and...

[user/henk/code/inspircd.git] / include / timer.h

diff --git a/include/timer.h b/include/timer.h
index 6a4c9063b7316c92cdf046930c898b884b24a5b6..ef8b82e31f64d728d662c35769af20842e162a9a 100644 (file)
--- a/include/timer.h
+++ b/include/timer.h
@@ -2,12 +2,9 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *                <Craig@chatspike.net>
+ *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
  *
- * Written by Craig Edwards, Craig McLure, and others.
  * This program is free but copyrighted software; see
  *            the file COPYING for details.
  *
@@ -17,6 +14,8 @@
 #ifndef INSPIRCD_TIMER_H
 #define INSPIRCD_TIMER_H
 
+class InspIRCd;
+
 /** Timer class for one-second resolution timers
  * InspTimer provides a facility which allows module
  * developers to create one-shot timers. The timer
@@ -27,35 +26,131 @@
  * your object (which you should override) will be called
  * at the given time.
  */
-class InspTimer
+class CoreExport InspTimer : public Extensible
 {
  private:
        /** The triggering time
         */
        time_t trigger;
+       /** Number of seconds between triggers
+        */
+       long secs;
+       /** True if this is a repeating timer
+        */
+       bool repeat;
  public:
        /** 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
         */
-       InspTimer(long secs_from_now,time_t now)
+       InspTimer(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 ~InspTimer() { }
+
        /** Retrieve the current triggering time
         */
        virtual time_t GetTimer()
        {
                return trigger;
        }
+
        /** 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 InspTimer::Tick() method is dangerous and may
+        * cause a segmentation fault. Calling CancelRepeat()
+        * is safe in this case.
+        */
+       void CancelRepeat()
+       {
+               repeat = false;
+       }
 };
 
-void TickTimers(time_t TIME);
-void AddTimer(InspTimer* T);
-void TickMissedTimers(time_t TIME);
+
+/** This class manages sets of InspTimers, 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 : public Extensible
+{
+ protected:
+       /** A group of timers all set to trigger at the same time
+        */
+       typedef std::vector<InspTimer*> timergroup;
+       /** A map of timergroups, each group has a specific trigger time
+        */
+       typedef std::map<time_t, timergroup*> timerlist;
+       /** Set when ticking timers, to prevent deletion while iterating
+        */
+       bool CantDeleteHere;
+       /** Creating server instance
+        */
+       InspIRCd* ServerInstance;
+ private:
+
+       /** The current timer set, a map of timergroups
+        */
+       timerlist Timers;
+
+ public:
+       /** Constructor
+        */
+       TimerManager(InspIRCd* Instance);
+       /** Tick all pending InspTimers
+        * @param TIME the current system time
+        */
+       void TickTimers(time_t TIME);
+       /** Add an InspTimer
+        * @param T an InspTimer derived class to add
+        * @param secs_from_now You may set this to the number of seconds
+        * from the current time when the timer will tick, or you may just
+        * leave this unset and the values set by the InspTimers constructor
+        * will be used. This is used internally for re-triggering repeating
+        * timers.
+        */
+       void AddTimer(InspTimer* T, long secs_from_now = 0);
+       /** Delete an InspTimer
+        * @param T an InspTimer derived class to delete
+        */
+       void DelTimer(InspTimer* T);
+       /** Tick any timers that have been missed due to lag
+        * @param TIME the current system time
+        */
+       void TickMissedTimers(time_t TIME);
+};
 
 #endif
+