hasher.hpp

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#ifndef H_KARAZEH_HASHER_H
#define H_KARAZEH_HASHER_H

#include "karazeh_export.h"
#include "karazeh/karazeh.hpp"

namespace kzh {
  class KARAZEH_EXPORT hasher
  {
    public:

    inline hasher(string_t const& name) : name_(name) { };
    inline virtual ~hasher() {};

    struct digest_rc {
      bool     valid;

      string_t digest;

      digest_rc() : valid(false) {}
      ~digest_rc() { }

      bool operator==(string_t const& checksum) {
        return valid && checksum == digest;
      }

      bool operator!=(string_t const& checksum) {
        return !valid || checksum != digest;
      }
    };

    virtual digest_rc hex_digest(string_t const& data) const = 0;

    virtual digest_rc hex_digest(std::ifstream& src) const = 0;
    virtual digest_rc hex_digest(path_t const& path) const = 0;

    inline string_t const& name() const {
      return name_;
    };

  protected:
    string_t name_;
  };

} // end of namespace kzh

#endif