src/timer.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include "inspircd_config.h"
  20 #include <sys/time.h>
  21 #include <sys/resource.h>
  22 #include <sys/types.h>
  23 #include <sys/socket.h>
  24 #include <netinet/in.h>
  25 #include <string>
  26 #include <unistd.h>
  27 #include <fcntl.h>
  28 #include <poll.h>
  29 #include <sstream>
  30 #include <iostream>
  31 #include <fstream>
  32 #include <stdexcept>
  33 #include "inspircd.h"
  34 #include "inspircd_io.h"
  35 #include "inspstring.h"
  36 #include "helperfuncs.h"
  37
  38 extern InspIRCd* ServerInstance;
  39 extern ServerConfig* Config;
  40 extern time_t TIME;
  41
  42 typedef std::vector<InspTimer*> timergroup;
  43 typedef std::map<time_t, timergroup*> timerlist;
  44 timerlist Timers;
  45
  46 void TickTimers(time_t TIME)
  47 {
  48         timerlist::iterator found = Timers.find(TIME);
  49
  50         if (found != Timers.end())
  51         {
  52                 timergroup* x = found->second;
  53                 /*
  54                  * There are pending timers to trigger
  55                  */
  56                 for (timergroup::iterator y = x->begin(); y != x->end(); y++)
  57                 {
  58                         InspTimer* n = (InspTimer*)*y;
  59                         n->Tick(TIME);
  60                         delete n;
  61                 }
  62
  63                 Timers.erase(found);
  64                 delete x;
  65         }
  66 }
  67
  68 /*
  69  * Because some muppets may do odd things, and their ircd may lock up due
  70  * to crappy 3rd party modules, or they may change their system time a bit,
  71  * this accounts for shifts of up to 120 secs by looking behind for missed
  72  * timers and executing them. This is only executed once every 5 secs.
  73  * If you move your clock BACK, and your timers move further ahead as a result,
  74  * then tough titty you'll just have to wait.
  75  */
  76 void TickMissedTimers(time_t TIME)
  77 {
  78         for (time_t n = TIME-1; n > TIME-120; n--)
  79         {
  80                 timerlist::iterator found = Timers.find(n);
  81                 if (found != Timers.end())
  82                 {
  83                         timergroup* x = found->second;
  84                         for (timergroup::iterator y = x->begin(); y != x->end(); y++)
  85                         {
  86                                 InspTimer* z = (InspTimer*)*y;
  87                                 z->Tick(TIME);
  88                                 delete z;
  89                         }
  90
  91                         Timers.erase(found);
  92                         delete x;
  93                 }
  94         }
  95 }
  96
  97 void AddTimer(InspTimer* T)
  98 {
  99         timergroup* x = NULL;
 100
 101         timerlist::iterator found = Timers.find(T->GetTimer());
 102
 103         if (found != Timers.end())
 104         {
 105                 x = found->second;
 106         }
 107         else
 108         {
 109                 x = new timergroup;
 110                 Timers[T->GetTimer()] = x;
 111         }
 112
 113         x->push_back(T);
 114 }