--- a/kernel/eka/debug/crashMonitor/src/scmconfig.cpp	Wed Oct 20 13:58:28 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,458 +0,0 @@
-// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
-// All rights reserved.
-// This component and the accompanying materials are made available
-// under the terms of the License "Eclipse Public License v1.0"
-// which accompanies this distribution, and is available
-// at the URL "http://www.eclipse.org/legal/epl-v10.html".
-//
-// Initial Contributors:
-// Nokia Corporation - initial contribution.
-//
-// Contributors:
-//
-// Description:
-// e32\debug\crashMonitor\src\scmconfig.cpp
-// 
-//
-
-/**
- @file
- @internalTechnology
-*/
-
-#include <e32err.h>
-#include <e32const.h>
-#include <e32const_private.h>
-
-#include <scmconfig.h>
-#include <scmconfigitem.h>
-#include <scmdatatypes.h>
-
-namespace Debug
-	{
-	/**
-	 * SCMConfiguration constructor
-	 * Initialises the configuration object to default values
-	 */
-	SCMConfiguration::SCMConfiguration() 
-	: iConfigList(NULL)
-		{
-		}
-	
-	/**
-	 * SCMConfiguration destructor
-	 */
-	SCMConfiguration::~SCMConfiguration()
-		{	
-		ClearList();	
-		}
-
-	/**
-	 * Goes to the flash and reads the configuration block and populates the object state
-	 * accordingly
-	 * @return one of the system wide error codes
-	 */
-	TInt SCMConfiguration::Deserialize(TByteStreamReader& aReader)
-		{		
-		if( !iConfigList)
-			{
-			// we need to set up a default configuration to load the data into
-			TInt err = SetDefaultConfig();
-			if(err != KErrNone)
-				{
-				CLTRACE1("SCMConfiguration::Deserialize SetDefaultConfig failed err = %d", err);
-				return err;
-				}
-			}
-		
-		TInt startPos = aReader.CurrentPosition();		
-		
-		TBuf8<10> magicNumbers;
-		// try and read the magic numbers - if they dont exist then 
-		// there is not an scm config there
-		const TInt KLen = KScmConfigHeaderString().Length();
-		for(TInt i=0;i<KLen;i++)
-			{
-			TUint8 b = aReader.ReadByte();			
-			magicNumbers.Append(TChar(b));	
-			}
-		
-		if(magicNumbers.Compare(KScmConfigHeaderString()) != 0)
-			{
-			CLTRACE("No scm, config to read !");
-			return KErrNotReady;
-			}
-				
-		TConfigItem* item = iConfigList;
-		while(item)
-			{
-			item->Deserialize(aReader);
-			item = item->iNext;
-			}
-		
-		TInt endPos = aReader.CurrentPosition();
-		if( endPos - startPos != GetSize())
-			{
-			// error between actual size & real size in data
-			CLTRACE("SCMConfiguration::Deserialize size error");	
-			return KErrCorrupt;
-			}			
-		return KErrNone;			
-		}
-	
-	/**
-	 * This writes the current configuration object state to flash. This configuration will be used on the next crash
-	 * @return one of the system wide error codes
-	 */
-	TInt SCMConfiguration::Serialize(TByteStreamWriter& aWriter)	
-		{		
-		if( !iConfigList)
-			{
-			CLTRACE("SCMConfiguration::Serialize ERROR - NO LIST!!");
-			return KErrNotReady;
-			}
-		
-		TInt startPos = aWriter.CurrentPosition();
-		
-		// write the number of crashes and magic numbers
-		
-		// try and read the magic numbers - if they dont exist then 
-		// there is not an scm config there
-		const TInt KLen = KScmConfigHeaderString().Length();
-		const TDesC8& des = KScmConfigHeaderString();
-		for(TInt i=0;i<KLen;i++)
-			{
-			aWriter.WriteByte(des[i]);
-			}				
-		
-		TConfigItem* item = iConfigList;
-		while(item)
-			{
-			item->Serialize(aWriter);
-			item = item->iNext;
-			}
-
-		TInt endPos = aWriter.CurrentPosition();
-		if( endPos - startPos != GetSize())
-			{
-			// error between actual size & real size in data
-			CLTRACE("SCMConfiguration::Serialize size error");	
-			return KErrCorrupt;
-			}						
-		return KErrNone;
-		}
-	
-	/**
-	 * Returns entire size of the SCMConfiguration block
-	 * @return Size
-	 */
-	TInt SCMConfiguration::GetSize() const
-		{
-		// returns the size of all the config items when serialized to disk / flash
-		return (TConfigItem::ELast * iConfigList->GetSize()) + KScmConfigHeaderString().Length();
-		}
-	
-	/** 
-	 * This will return, one at a time, the highest priority. 
-	 * @see ResetToHighestPriority()
-	 * @param aSizeToDump this will contain the size in bytes of data to dump for this type - 0 means dump all
-	 * @return Data type to dump 
-	 */
-	TConfigItem* SCMConfiguration::GetNextItem()
-		{
-		if(!iNextItem)
-			{
-			return NULL;
-			}
-			
-		//get the values we need
-		TConfigItem* item  = iNextItem;	
-		
-		//Now move iNextItem to be next in the list
-		iNextItem = iNextItem->iNext;			
-		return item;
-		}	
-	
-	/**
-	 * Deletes the linked list
-	 * @return system wide OS code
-	 */
-	void SCMConfiguration::ClearList()
-		{
-		if(!iConfigList)
-			{
-			return;
-			}
-		
-		//all we need to do in here is delete the members of our linked list
-		TConfigItem* item = iConfigList;
-		
-		do{			
-			TConfigItem* tmp = item->iNext;
-			delete item;		
-			item = tmp;		
-		}
-		while(item != NULL);
-		
-		iConfigList = NULL;
-		}
-	
-	/**
-	 * Rather than reading the configuration from the flash, this method sets up the configuration object
-	 * to a default configuration type
-	 * @return one of the system wide error codes
-	 */ 
-	TInt SCMConfiguration::SetDefaultConfig()
-		{
-		//flush the object first
-		ClearList();
-	
-		//This is a predefined default config - in the future we may have multiple defaults based on use case
-		// currently however we use a fixed size list of config items of size TConfigItem::ELast		
-		// also the TSCMDataType of each item must be unique				
-		
-		for(TInt cnt = TConfigItem::ELast - 1; cnt >= 0; cnt --)
-			{			
-			TInt priority = cnt + 1; 
-			
-			//Lets not do these by default
-			if((TConfigItem::TSCMDataType)cnt == TConfigItem::EThreadsUsrStack || (TConfigItem::TSCMDataType)cnt == TConfigItem::EThreadsSvrStack)
-				{
-				priority = 0;
-				}
-			
-			//set it with the priority of its enum (ie. assume that the enum is listed in its priority - it is)
-			//by default dump everything until we run out of space
-			TInt err = CreateConfigItem((TConfigItem::TSCMDataType)cnt, priority, 0);
-			if(KErrNone != err)
-				{
-				return err;
-				}
-			}
-		
-		return KErrNone;		
-		}
-		
-	/**
-	 * This configures the required data for a given configuration item
-	 * Note that aSizeToDump is only used in the case of memory dumps such as stacks
-	 * @param aDataType - Type of data to dump
-	 * @param aPriority - its priority 0-256. 0 Means do not dump and 256 is highest priority
-	 * @param aSizeToDump - amount in bytes to dump. Only relevant for memory dumps and ignored when aPriority is 0
-	 * @return one of the OS wide return codes
-	 */
-	TInt SCMConfiguration::CreateConfigItem(const TConfigItem::TSCMDataType aDataType, const TUint8 aPriority, const TInt32 aSizeToDump)
-		{
-		//create the config item
-		TConfigItem* item = new TConfigItem(aDataType, aPriority, aSizeToDump);
-		
-		//insert to priority list
-		return InsertToList(item);		
-		}
-		
-	
-	/**
-	 * ModifyConfigItemPriority - modifies prioity for a given configuration item
-	 * @param aDataType - The unique type of the config item
-	 * @param aPriority - its priority 0-256. 0 Means do not dump and 256 is highest priority
-	 * @return one of the OS wide return codes
-	 */
-	TInt  SCMConfiguration::ModifyConfigItemPriority(const TConfigItem::TSCMDataType aDataType, const TUint8 aPriority)
-		{
-
-		// find the item with the matching data type
-		TConfigItem* item = iConfigList;		
-		while(item)
-			{
-			if(item->iDataType == aDataType)
-				{
-				break;
-				}
-			item = item->iNext;			
-			}
-	
-		if(!item)
-			{
-			return KErrNotFound;
-			}
-		
-		item->iPriority = aPriority;
-		
-		// now reorder the list according to new priority
-		TInt err = RemoveFromList(item);
-		if(err != KErrNone)
-			{
-			return err;
-			}
-		
-		err = InsertToList(item);
-
-		if(err != KErrNone)
-			{
-			return err;
-			}
-		
-		return KErrNone;
-		}
-
-/**
- * Removes item from the linked list
- * @param aItem - item to remove
- * @return OS code
- */
-TInt SCMConfiguration::RemoveFromList(TConfigItem* aItem)
-		{
-		if(!aItem)
-			{
-			return KErrArgument;
-			}
-		
-		if(!iConfigList)
-			{
-			return KErrCorrupt;  // oops no list to remove
-			}
-		
-		
-		if(aItem == iConfigList)
-			{
-			// special case remove from beginning of list
-			iConfigList = iConfigList->iNext;
-			return KErrNone;
-			}
-		
-		TConfigItem* item = iConfigList; 
-		while(item)
-			{
-			// is the next item the match ?
-			if(item->iNext == aItem)
-				{
-				item->iNext = aItem->iNext;
-				return KErrNone;
-				}		
-			item = item->iNext;	
-			}
-		
-		return KErrNotFound;	
-		}
-
-/**
- * Inserts a priority item into the linked list in its correct location
- * @param aItem - item to insert
- * @return OS code
- */
-TInt SCMConfiguration::InsertToList(TConfigItem* aItem)
-	{ 	
-	
-	//if the list is empty, then this is the only item
-	if(!iConfigList)
-		{
-		iConfigList = aItem;			
-		return KErrNone;
-		}
-	
-	//should it go at the start? special case not covered by while loop
-	TConfigItem* temp;
-	
-	if(aItem->iPriority >= iConfigList->iPriority)
-		{
-		temp = iConfigList;
-		iConfigList = aItem;
-		aItem->iNext = temp;
-		return KErrNone;
-		}
-	
-	TConfigItem* item = iConfigList;
-	
-	do{		
-		//if we get to the end of the list and the item still hasnt been assigned then it must be lowest priority
-		if(item->iNext == NULL)
-			{
-			item->iNext = aItem;
-			return KErrNone;
-			}
-		
-		//check if its priority is between these
-		if(aItem->iPriority < item->iPriority && aItem->iPriority >= item->iNext->iPriority)
-			{
-			//insert between these nodes
-			temp = item->iNext;
-			item->iNext = aItem;
-			aItem->iNext = temp;
-			return KErrNone;
-			}
-	
-		item = item->iNext;	
-	}
-	while(item != NULL);	
-	
-	//should never get here
-	return KErrUnknown;
-	}
-	
-/**
- * This resets the next item counter back to the highest priority item in the list
- */
-void SCMConfiguration::ResetToHighestPriority()
-	{
-	//set the next item counter back to the head of the list
-	iNextItem = iConfigList;
-	}
-
-/**
- * Overloaded == operator
- * @param aOther Item to compare
- * @return
- */
-TBool SCMConfiguration::operator == (const SCMConfiguration& aOther) const
-	{
-	
-	if(!iConfigList && !aOther.iConfigList)
-		{
-		return ETrue;
-		}
-	 		
-	if((!iConfigList && aOther.iConfigList) || (iConfigList && !aOther.iConfigList))
-		{
-		return EFalse;
-		}
-	
-	
-	TConfigItem* item1 = iConfigList;
-	TConfigItem* item2 = aOther.iConfigList;
-	
-	while(item1 && item2)
-		{
-		if(!(*item1 == *item2))
-			{
-			return EFalse;
-			}
-		
-		item1 = item1->iNext;			
-		item2 = item2->iNext;			
-		}
-
-	if( item1 != item2)  // both should now be null - if not then lists were different lengths
-		{
-		return EFalse;
-		}
-		
-	return ETrue;
-	
-	}
- 	
-/**
- * Getter for the head of the SCMConfig list
- * @return Head of List
- */	
-TConfigItem* SCMConfiguration::ConfigList() const
-	{
-	// returns the head of the list	
-	return iConfigList;
-	} 
-} //End of debug namespace
-
-//eof
-
-
-
-