/**

 * @file cachevalidator.hpp

 */

#ifndef ROM_TOOLS_ROFSBUILD_CACHE_CACHEVALIDATOR_H_

#define ROM_TOOLS_ROFSBUILD_CACHE_CACHEVALIDATOR_H_

/**

 * @class CacheValidator

 * @brief Validate an existing cache entry.

 */

class CacheValidator

{

public:

	/**

	 * @fn CacheValidator* CacheValidator::GetInstance(void)

	 * @brief Get singleton instance of class CacheValidator.

	 * @return The singleton instance.

	 * @exception CacheException Catch allocation failures.

	 */

	static CacheValidator* GetInstance(void) throw (CacheException);

	/**

	 * @fn CacheEntry* CacheValidator::Validate(const char* OriginalFilename, int CurrentCompressionID)

	 * @brief Validate cached executable with original version.

	 * @param OriginalFilename The filename of original executable.

	 * @param CurrentCompressionID The ID of compression method used over current image build.

	 * @return The entry for cached file or zero if the given executable file is invalidated.

	 */

	CacheEntry* Validate(const char* OriginalFilename, int CurrentCompressionID);

protected:

	static CacheValidator* Only;

private:

	CacheValidator(void);

	CacheValidator(const CacheValidator&);

	CacheValidator& operator = (const CacheValidator&);

};

#endif  /* defined ROM_TOOLS_ROFSBUILD_CACHE_CACHEVALIDATOR_H_ */