From 35529718181c14610669054fcc0a80b8bf305666 Mon Sep 17 00:00:00 2001
From: brain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Sat, 28 Oct 2006 17:19:55 +0000
Subject: Needs more testing but seems to work: In DoBackgroundUserStuff(),
 calculate the time value of when we actually do need enter the function body
 again, and dont run function body again till that time

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@5568 e03df62e-2008-0410-955e-edbf42e46eb7
---
 include/inspircd.h  |  4 ++++
 src/inspircd.cpp    |  1 +
 src/userprocess.cpp | 46 ++++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/include/inspircd.h b/include/inspircd.h
index 8c897305f..16b42e50b 100644
--- a/include/inspircd.h
+++ b/include/inspircd.h
@@ -421,6 +421,10 @@ class InspIRCd : public classbase
 	 */
 	FactoryList factory;
 
+	/** The time we next call our ping timeout and reg timeout checks
+	 */
+	time_t next_call;
+
 	/** Get the current time
 	 * Because this only calls time() once every time around the mainloop,
 	 * it is much faster than calling time() directly.
diff --git a/src/inspircd.cpp b/src/inspircd.cpp
index 2f44e9735..53f3bb733 100644
--- a/src/inspircd.cpp
+++ b/src/inspircd.cpp
@@ -190,6 +190,7 @@ InspIRCd::InspIRCd(int argc, char** argv)
 	this->SNO = new SnomaskManager(this);
 	this->Start();
 	this->TIME = this->OLDTIME = this->startup_time = time(NULL);
+	this->next_call = this->TIME + 3;
 	srand(this->TIME);
 	this->Log(DEBUG,"*** InspIRCd starting up!");
 	if (!ServerConfig::FileExists(CONFIG_FILE))
diff --git a/src/userprocess.cpp b/src/userprocess.cpp
index cb204989d..327cd88f3 100644
--- a/src/userprocess.cpp
+++ b/src/userprocess.cpp
@@ -245,8 +245,16 @@ void InspIRCd::ProcessUser(userrec* cu)
  */
 void InspIRCd::DoBackgroundUserStuff(time_t TIME)
 {
+	/* Is it time yet? */
+	if (TIME < next_call)
+		return;
+
 	CullList GlobalGoners(this);
 
+	/* Time we actually need to call this again */
+	const time_t DUMMY_VALUE = 32768;
+	next_call = TIME + DUMMY_VALUE;
+
 	/* XXX: IT IS NOT SAFE TO USE AN ITERATOR HERE. DON'T EVEN THINK ABOUT IT. */
 	for (unsigned long count2 = 0; count2 != this->local_users.size(); count2++)
 	{
@@ -268,11 +276,18 @@ void InspIRCd::DoBackgroundUserStuff(time_t TIME)
 				GlobalGoners.AddItem(curr,"Registration timeout");
 				continue;
 			}
+			else
+			{
+				if ((curr->registered != REG_ALL) && (next_call > (time_t)curr->timeout))
+					next_call = curr->timeout;
+			}
+
 			/*
 			 * user has signed on with USER/NICK/PASS, and dns has completed, all the modules
 			 * say this user is ok to proceed, fully connect them.
 			 */
-			if ((TIME > curr->signon) && (curr->registered == REG_NICKUSER) && (AllModulesReportReady(curr)))
+			bool ready = AllModulesReportReady(curr);
+			if ((TIME > curr->signon) && (curr->registered == REG_NICKUSER) && (ready))
 			{
 				curr->dns_done = true;
 				//ZapThisDns(curr->fd);
@@ -280,13 +295,25 @@ void InspIRCd::DoBackgroundUserStuff(time_t TIME)
 				curr->FullConnect(&GlobalGoners);
 				continue;
 			}
-			if ((curr->dns_done) && (curr->registered == REG_NICKUSER) && (AllModulesReportReady(curr)))
+			else
+			{
+				if ((curr->registered == REG_NICKUSER) && (ready) && (next_call > curr->signon))
+					next_call = curr->signon;
+			}
+
+			if ((curr->dns_done) && (curr->registered == REG_NICKUSER) && (ready))
 			{
 				this->Log(DEBUG,"dns done, registered=3, and modules ready, OK");
 				curr->FullConnect(&GlobalGoners);
 				//ZapThisDns(curr->fd);
 				continue;
 			}
+			else
+			{
+				if ((curr->registered == REG_NICKUSER) && (ready) && (next_call > curr->signon + this->Config->dns_timeout))
+					next_call = curr->signon + this->Config->dns_timeout;
+			}
+
 			// It's time to PING this user. Send them a ping.
 			if ((TIME > curr->nping) && (curr->registered == REG_ALL))
 			{
@@ -305,6 +332,11 @@ void InspIRCd::DoBackgroundUserStuff(time_t TIME)
 				curr->lastping = 0;
 				curr->nping = TIME+curr->pingmax;
 			}
+			else
+			{
+				if ((curr->registered == REG_ALL) && (next_call > curr->nping))
+					next_call = curr->nping;
+			}
 
 			/*
 			 * We can flush the write buffer as the last thing we do, because if they
@@ -321,6 +353,16 @@ void InspIRCd::DoBackgroundUserStuff(time_t TIME)
 
 	}
 
+	/* If theres nothing to do, trigger in the next second, something might come up */
+	time_t delta = next_call - TIME;
+	if (delta == DUMMY_VALUE)
+	{
+		next_call = TIME + 1;
+		delta = 1;
+	}
+
+	this->Log(DEBUG,"Time now is %lu, next time we actually need to call this is %lu (%lu secs from now)", TIME, next_call, delta);
+
 
 	/* Remove all the queued users who are due to be quit, free memory used. */
 	GlobalGoners.Apply();
-- 
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