From f2acdbc3820f0f4f5ef76a0a64e73d2a320df91f Mon Sep 17 00:00:00 2001
From: peavey
Date: Mon, 16 Jul 2007 17:30:04 +0000
Subject: OOPS! We try again, since I'm smoking craq. LF is 0x0a NOT CR.

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@7456 e03df62e-2008-0410-955e-edbf42e46eb7
---
 src/timer.cpp | 136 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 135 insertions(+), 1 deletion(-)

(limited to 'src/timer.cpp')

diff --git a/src/timer.cpp b/src/timer.cpp
index 90cf8bd95..c04107502 100644
--- a/src/timer.cpp
+++ b/src/timer.cpp
@@ -1 +1,135 @@
-/*       +------------------------------------+
 *       | 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.
 *
 * ---------------------------------------------------
 */

#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++)
		{
			InspTimer* 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(InspTimer* 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++)
		{
			InspTimer* 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(InspTimer* 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);
}

\ 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.
+ *
+ * ---------------------------------------------------
+ */
+
+#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++)
+		{
+			InspTimer* 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(InspTimer* 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++)
+		{
+			InspTimer* 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(InspTimer* 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);
+}
+
-- 
cgit v1.3.1-10-gc9f91