diff -r fa7a3cc6effd -r 6d08f4a05d93 imgtools/romtools/rofsbuild/src/cache/cachegenerator.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/romtools/rofsbuild/src/cache/cachegenerator.cpp	Fri Jun 25 18:11:34 2010 +0800
@@ -0,0 +1,78 @@
+/*
+* Copyright (c) 1995-2009 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: 
+*
+*/
+
+#include <new>
+#include <queue>
+#include <iostream>
+#include <fstream>
+#include <filesystem.hpp>
+#include <thread/thread.hpp>
+#include <thread/condition_variable.hpp>
+
+#include "cache/cacheexception.hpp"
+#include "cache/cacheentry.hpp"
+#include "cache/cacheablelist.hpp"
+#include "cache/cachegenerator.hpp"
+
+using namespace std ;
+CacheGenerator* CacheGenerator::Only = (CacheGenerator*)0;
+
+
+CacheGenerator* CacheGenerator::GetInstance(void) throw (CacheException)
+{
+	if(! CacheGenerator::Only)
+	{
+		CacheGenerator::Only = new (nothrow) CacheGenerator();
+		if(! CacheGenerator::Only)
+			throw CacheException(CacheException::RESOURCE_ALLOCATION_FAILURE);
+	}
+
+	return CacheGenerator::Only;
+}
+
+
+void CacheGenerator::ProcessFiles(void) throw (CacheException)
+{
+	while(1)
+	{
+		//pick one entry from the CacheableList.
+		CacheEntry* entryref = CacheableList::GetInstance()->GetCacheable();
+		if(! entryref->GetCachedFileBuffer())
+			break;
+
+		//write cacheable content into the cache.
+		boost::filesystem::path filepath(entryref->GetCachedFilename());
+		string filename = filepath.file_string(); 	
+		ofstream fileref(filename.c_str(), ios_base::binary | ios_base::out | ios_base::trunc);
+		if(! fileref.is_open())
+		{
+			printf("Cannot write/update cached %s\r\n", filepath.file_string().c_str());
+			continue;
+		}
+
+		fileref.write(entryref->GetCachedFileBuffer(), entryref->GetCachedFileBufferLen());
+		fileref.close();
+	}
+
+	return;
+}
+
+
+CacheGenerator::CacheGenerator(void) :  boost::thread(ProcessFiles)
+{
+	return;
+}