File: inodeprint.hh

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// Copyright (C) 2005 Nathaniel Smith <njs@pobox.com>
//
// This program is made available under the GNU GPL version 2.0 or
// greater. See the accompanying file COPYING for details.
//
// This program is distributed WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE.

#ifndef __INODEPRINT_HH__
#define __INODEPRINT_HH__

#include <map>
#include "vocab.hh"
#include "quick_alloc.hh"
#include "paths.hh"
#include "platform.hh"

typedef std::pair<file_path const, hexenc<inodeprint> > inodeprint_entry;

typedef std::map<file_path, hexenc<inodeprint>,
                 std::less<file_path>,
                 QA(inodeprint_entry) > inodeprint_map;

std::ostream & operator<<(std::ostream & out, inodeprint_entry const & e);

void read_inodeprint_map(data const & dat,
                         inodeprint_map & ipm);

void write_inodeprint_map(inodeprint_map const & ipm,
                          data & dat);

bool inodeprint_file(file_path const & file, hexenc<inodeprint> & ip);

inline bool
inodeprint_unchanged(inodeprint_map const & ipm, file_path const & path)
{
  inodeprint_map::const_iterator old_ip = ipm.find(path);
  if (old_ip != ipm.end())
    {
      hexenc<inodeprint> ip;
      if (inodeprint_file(path, ip) && ip == old_ip->second)
          return true; // unchanged
      else
          return false; // changed or unavailable
    }
  else
    return false; // unavailable
}


#endif

// Local Variables:
// mode: C++
// fill-column: 76
// c-file-style: "gnu"
// indent-tabs-mode: nil
// End:
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s: