From 1314ca6a7f9db7b7ed26f28e36bb05d1ff02eef2 Mon Sep 17 00:00:00 2001
From: Michael Phipps <michaelphipps@nowhere.fake>
Date: Tue, 30 Jul 2002 02:02:40 +0000
Subject: [PATCH] Enabled saver thread.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@540 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/kernel/vm2/test.C        |  1 +
 src/kernel/vm2/vmInterface.C | 24 ++++++++++++++++++------
 src/kernel/vm2/vpage.C       |  4 +++-
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/src/kernel/vm2/test.C b/src/kernel/vm2/test.C
index 7139567ad7..698538715f 100644
--- a/src/kernel/vm2/test.C
+++ b/src/kernel/vm2/test.C
@@ -44,6 +44,7 @@ int main(int argc,char **argv)
 	for (int i=0;i<8192;i++)
 		if (i%256!=readByte(i))
 				printf ("ERROR! Byte at offset %d does not match: expected: %d, found: %d\n",i,i%256,readByte(i));
+	snooze(2000000);
 
 	return 0;
 }
diff --git a/src/kernel/vm2/vmInterface.C b/src/kernel/vm2/vmInterface.C
index 0bd1e32122..1b41b62ef2 100644
--- a/src/kernel/vm2/vmInterface.C
+++ b/src/kernel/vm2/vmInterface.C
@@ -6,6 +6,12 @@ areaManager am;
 swapFileManager swapMan;
 pageManager pageMan(10); // Obviously this hard coded number is a hack...
 	
+areaManager *vmInterface::getAM(void)
+	{
+	// Normally, we would go to the current user process to get this. Since there no such thing exists here...
+	return &am;
+	}
+
 int32 cleanerThread(void *pageMan)
 	{
 	pageManager *pm=(pageManager *)pageMan;
@@ -13,16 +19,22 @@ int32 cleanerThread(void *pageMan)
 	return 0;
 	}
 
+int32 saverThread(void *areaMan)
+	{
+	areaManager *am=(areaManager *)areaMan;
+	// This should iterate over all processes...
+	while (1)
+		{
+		snooze(250000);	
+		am->saver();	
+		}
+	}
+
 vmInterface::vmInterface(int pages) 
 	{
 	nextAreaID=0;
 	resume_thread(spawn_thread(cleanerThread,"cleanerThread",0,&pageMan));
-	}
-
-areaManager *vmInterface::getAM(void)
-	{
-	// Normally, we would go to the current user process to get this. Since there no such thing exists here...
-	return &am;
+	resume_thread(spawn_thread(saverThread,"saverThread",0,getAM()));
 	}
 
 int vmInterface::getAreaByAddress(void *address)
diff --git a/src/kernel/vm2/vpage.C b/src/kernel/vm2/vpage.C
index 656e6aff91..0bb94b7c0a 100644
--- a/src/kernel/vm2/vpage.C
+++ b/src/kernel/vm2/vpage.C
@@ -126,5 +126,7 @@ void vpage::pager(int desperation)
 
 void vpage::saver(void)
 	{
-	flush();
+	if (dirty)
+		flush();
+	dirty=false;
 	}