diff -r 22486c9c7b15 -r 378360dbbdba imgtools/romtools/rofsbuild/inc/cache/cache.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/romtools/rofsbuild/inc/cache/cache.hpp	Wed Jun 30 11:35:58 2010 +0800
@@ -0,0 +1,74 @@
+/**
+ * @file cache.hpp
+ */
+
+
+#ifndef ROM_TOOLS_ROFSBUILD_CACHE_CACHE_H_
+#define ROM_TOOLS_ROFSBUILD_CACHE_CACHE_H_
+
+
+#define BOOST_FILESYSTEM_NO_DEPRECATED
+
+
+/**
+ * @class Cache
+ * @brief Cache
+ */
+class Cache
+{
+public:
+	/**
+	 * @fn static Cache* Cache::GetInstance(void)
+	 * @brief Retrieve singleton instance of class Cache.
+	 * @return The singleton instance.
+	 */
+	static Cache* GetInstance(void) throw (CacheException);
+
+	/**
+	 * @fn void Cache::Initialize(path* CacheRoot)
+	 * @brief Load Cache meta data file and initialize inner structures.
+	 * @exception CacheException I/O operation failures or resource allocation failures.
+	 */
+	void Initialize(void) throw (CacheException);
+
+	/**
+	 * @fn CacheEntry Cache::GetEntryList(const char* OriginalFilename)
+	 * @param OriginalFilename The filename of original executable which is being cached.
+	 * @return A list of cached items for the original executables or NULL if there's no entries match the original filename.
+	 */
+	CacheEntry* GetEntryList(const char* OriginalFilaname);
+
+	/**
+	 * @fn void Cache::SetEntry(const char* OriginalFilename, CacheEntry* EntryRef)
+	 * @brief Add a new cache entry into cache or update an existing cache entry.
+	 * @param OriginalFilename The filename of the original executable file.
+	 * @param EntryRef The address pointing to an instance of class CacheEntry, must be valid, verified by the caller.
+	 */
+	void AddEntry(const char* OriginalFilename, CacheEntry* EntryRef);
+
+	/**
+	 * @fn void Cache::CloseCache(void)
+	 * @brief Update cache with all cache entries.
+	 * @exception CacheException Catch errors occurring when the Cache gets updated.
+	 */
+	void CloseCache(void) throw (CacheException);
+protected:
+	bool ValidateEntry(std::string& EntryRawText);
+
+	static Cache* Only;
+
+	std::string metafile;
+
+	boost::mutex cachemutex;
+
+	std::map<std::string, CacheEntry*> entrymap;
+private:
+	Cache(void);
+
+	Cache(const Cache&);
+
+	Cache& operator = (const Cache&);
+};
+
+
+#endif  /* defined ROM_TOOLS_ROFSBUILD_CACHE_CACHE_H_ */