-/* +------------------------------------+\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#include "inspircd.h"\r#include "timer.h"\r\rTimerManager::TimerManager(InspIRCd* Instance) : CantDeleteHere(false), ServerInstance(Instance)\r{\r}\r\rvoid TimerManager::TickTimers(time_t TIME)\r{\r this->CantDeleteHere = true;\r timerlist::iterator found = Timers.find(TIME);\r\r if (found != Timers.end())\r {\r timergroup* x = found->second;\r /* There are pending timers to trigger.\r * WARNING: Timers may delete themselves from within\r * their own Tick methods! see the comment below in\r * the DelTimer method.\r */\r for (timergroup::iterator y = x->begin(); y != x->end(); y++)\r {\r InspTimer* n = *y;\r n->Tick(TIME);\r if (n->GetRepeat())\r {\r AddTimer(n, n->GetSecs());\r }\r else\r {\r DELETE(n);\r }\r }\r\r Timers.erase(found);\r DELETE(x);\r }\r\r this->CantDeleteHere = false;\r}\r\rvoid TimerManager::DelTimer(InspTimer* T)\r{\r if (this->CantDeleteHere)\r {\r /* If a developer tries to delete a timer from within its own Tick method,\r * then chances are this is just going to totally fuck over the timergroup\r * and timerlist iterators and cause a crash. Thanks to peavey and Bricker\r * for noticing this bug.\r * If we're within the tick loop when the DelTimer is called (signified\r * by the var 'CantDeleteHere') then we simply return for non-repeating\r * timers, and cancel the repeat on repeating timers. We can do this because\r * we know that the timer tick loop will safely delete the timer for us\r * anyway and therefore we avoid stack corruption.\r */\r if (T->GetRepeat())\r T->CancelRepeat();\r else\r return;\r }\r\r timerlist::iterator found = Timers.find(T->GetTimer());\r\r if (found != Timers.end())\r {\r timergroup* x = found->second;\r for (timergroup::iterator y = x->begin(); y != x->end(); y++)\r {\r InspTimer* n = *y;\r if (n == T)\r {\r DELETE(n);\r x->erase(y);\r if (!x->size())\r {\r Timers.erase(found);\r DELETE(x);\r }\r return;\r }\r }\r }\r}\r\r/** Because some muppets may do odd things, and their ircd may lock up due\r * to crappy 3rd party modules, or they may change their system time a bit,\r * this accounts for shifts of up to 120 secs by looking behind for missed\r * timers and executing them. This is only executed once every 5 secs.\r * If you move your clock BACK, and your timers move further ahead as a result,\r * then tough titty you'll just have to wait.\r */\rvoid TimerManager::TickMissedTimers(time_t TIME)\r{\r for (time_t n = TIME-1; n > TIME-120; n--)\r this->TickTimers(TIME);\r}\r\rvoid TimerManager::AddTimer(InspTimer* T, long secs_from_now)\r{\r timergroup* x = NULL;\r\r int time_to_trigger = 0;\r if (!secs_from_now)\r time_to_trigger = T->GetTimer();\r else\r time_to_trigger = secs_from_now + ServerInstance->Time();\r\r timerlist::iterator found = Timers.find(time_to_trigger);\r\r if (found != Timers.end())\r {\r x = found->second;\r }\r else\r {\r x = new timergroup;\r Timers[time_to_trigger] = x;\r }\r\r x->push_back(T);\r}\r\r
\ No newline at end of file
+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+/* $Core: libIRCDtimer */
+
+#include "inspircd.h"
+#include "timer.h"
+
+TimerManager::TimerManager(InspIRCd* Instance) : CantDeleteHere(false), ServerInstance(Instance)
+{
+}
+
+void TimerManager::TickTimers(time_t TIME)
+{
+ this->CantDeleteHere = true;
+ timerlist::iterator found = Timers.find(TIME);
+
+ if (found != Timers.end())
+ {
+ timergroup* x = found->second;
+ /* There are pending timers to trigger.
+ * WARNING: Timers may delete themselves from within
+ * their own Tick methods! see the comment below in
+ * the DelTimer method.
+ */
+ for (timergroup::iterator y = x->begin(); y != x->end(); y++)
+ {
+ Timer* n = *y;
+ n->Tick(TIME);
+ if (n->GetRepeat())
+ {
+ AddTimer(n, n->GetSecs());
+ }
+ else
+ {
+ delete n;
+ }
+ }
+
+ Timers.erase(found);
+ delete x;
+ }
+
+ this->CantDeleteHere = false;
+}
+
+void TimerManager::DelTimer(Timer* T)
+{
+ if (this->CantDeleteHere)
+ {
+ /* If a developer tries to delete a timer from within its own Tick method,
+ * then chances are this is just going to totally fuck over the timergroup
+ * and timerlist iterators and cause a crash. Thanks to peavey and Bricker
+ * for noticing this bug.
+ * If we're within the tick loop when the DelTimer is called (signified
+ * by the var 'CantDeleteHere') then we simply return for non-repeating
+ * timers, and cancel the repeat on repeating timers. We can do this because
+ * we know that the timer tick loop will safely delete the timer for us
+ * anyway and therefore we avoid stack corruption.
+ */
+ if (T->GetRepeat())
+ T->CancelRepeat();
+ else
+ return;
+ }
+
+ timerlist::iterator found = Timers.find(T->GetTimer());
+
+ if (found != Timers.end())
+ {
+ timergroup* x = found->second;
+ for (timergroup::iterator y = x->begin(); y != x->end(); y++)
+ {
+ Timer* n = *y;
+ if (n == T)
+ {
+ delete n;
+ x->erase(y);
+ if (!x->size())
+ {
+ Timers.erase(found);
+ delete x;
+ }
+ return;
+ }
+ }
+ }
+}
+
+/** Because some muppets may do odd things, and their ircd may lock up due
+ * to crappy 3rd party modules, or they may change their system time a bit,
+ * this accounts for shifts of up to 120 secs by looking behind for missed
+ * timers and executing them. This is only executed once every 5 secs.
+ * If you move your clock BACK, and your timers move further ahead as a result,
+ * then tough titty you'll just have to wait.
+ */
+void TimerManager::TickMissedTimers(time_t TIME)
+{
+ for (time_t n = TIME-1; n > TIME-120; n--)
+ this->TickTimers(TIME);
+}
+
+void TimerManager::AddTimer(Timer* T, long secs_from_now)
+{
+ timergroup* x = NULL;
+
+ int time_to_trigger = 0;
+ if (!secs_from_now)
+ time_to_trigger = T->GetTimer();
+ else
+ time_to_trigger = secs_from_now + ServerInstance->Time();
+
+ timerlist::iterator found = Timers.find(time_to_trigger);
+
+ if (found != Timers.end())
+ {
+ x = found->second;
+ }
+ else
+ {
+ x = new timergroup;
+ Timers[time_to_trigger] = x;
+ }
+
+ x->push_back(T);
+}
+
projects / user / henk / code / inspircd.git / blobdiff