File_Hasher.h

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#ifndef joedb_File_Hasher_declared
#define joedb_File_Hasher_declared
 
#include "joedb/journal/SHA_256.h"
 
#include <string>
 
namespace joedb
{
 class Buffered_File;
 
 /// @ingroup journal
 class File_Hasher
 {
 public:
  static SHA_256::Hash get_hash
  (
   Buffered_File &file,
   int64_t start,
   int64_t size
  );
 
  static SHA_256::Hash get_hash(Buffered_File &file);
  static SHA_256::Hash get_hash(const std::string &s);
 
  static SHA_256::Hash get_fast_hash
  (
   Buffered_File &file,
   int64_t start,
   int64_t size
  );
 };
 
 class Readonly_Journal;
 
 /// @ingroup journal
 class Journal_Hasher
 {
 public:
  static SHA_256::Hash get_hash
  (
   const Readonly_Journal &journal,
   int64_t checkpoint
  );
 };
}
 
#endif