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 "users.h"
  34 #include "ctables.h"
  35 #include "typedefs.h"
  36 #include "commands.h"
  37 #include "globals.h"
  38 #include "hashcomp.h"
  39 #include "inspircd.h"
  40 #include "inspircd_io.h"
  41 #include "inspstring.h"
  42 #include "helperfuncs.h"
  43
  44 extern InspIRCd* ServerInstance;
  45 extern ServerConfig* Config;
  46 extern time_t TIME;
  47
  48 typedef std::vector<InspTimer*> timergroup;
  49 typedef std::map<time_t, timergroup*> timerlist;
  50 timerlist Timers;
  51
  52 void TickTimers(time_t TIME)
  53 {
  54         timerlist::iterator found = Timers.find(TIME);
  55
  56         if (found != Timers.end())
  57         {
  58                 timergroup* x = found->second;
  59                 /*
  60                  * There are pending timers to trigger
  61                  */
  62                 for (timergroup::iterator y = x->begin(); y != x->end(); y++)
  63                 {
  64                         InspTimer* n = (InspTimer*)*y;
  65                         n->Tick(TIME);
  66                         delete n;
  67                 }
  68
  69                 Timers.erase(found);
  70                 delete x;
  71         }
  72 }
  73
  74 /*
  75  * Because some muppets may do odd things, and their ircd may lock up due
  76  * to crappy 3rd party modules, or they may change their system time a bit,
  77  * this accounts for shifts of up to 120 secs by looking behind for missed
  78  * timers and executing them. This is only executed once every 5 secs.
  79  * If you move your clock BACK, and your timers move further ahead as a result,
  80  * then tough titty you'll just have to wait.
  81  */
  82 void TickMissedTimers(time_t TIME)
  83 {
  84         for (time_t n = TIME-1; n > TIME-120; n--)
  85         {
  86                 timerlist::iterator found = Timers.find(n);
  87                 if (found != Timers.end())
  88                 {
  89                         timergroup* x = found->second;
  90                         for (timergroup::iterator y = x->begin(); y != x->end(); y++)
  91                         {
  92                                 InspTimer* z = (InspTimer*)*y;
  93                                 z->Tick(TIME);
  94                                 delete z;
  95                         }
  96
  97                         Timers.erase(found);
  98                         delete x;
  99                 }
 100         }
 101 }
 102
 103 void AddTimer(InspTimer* T)
 104 {
 105         timergroup* x = NULL;
 106
 107         timerlist::iterator found = Timers.find(T->GetTimer());
 108
 109         if (found != Timers.end())
 110         {
 111                 x = found->second;
 112         }
 113         else
 114         {
 115                 x = new timergroup;
 116                 Timers[T->GetTimer()] = x;
 117         }
 118
 119         x->push_back(T);
 120 }