File: cache_logger.hh

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// Copyright (C) 2010 and later by various people
// see monotone commit logs for details and authors
//
// 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 __CACHE_LOGGER_HH__
#define __CACHE_LOGGER_HH__

#include <boost/shared_ptr.hpp>

class cache_logger_impl;

class cache_logger
{
  boost::shared_ptr<cache_logger_impl> _impl;
  int max_size;
public:
  // if given the empty filename, do nothing
  explicit cache_logger(std::string const & filename, int max_size);

  bool logging() const { return _impl; }

  void log_exists(bool exists, int position, int item_count, int est_size) const;
  void log_touch(bool exists, int position, int item_count, int est_size) const;
  void log_fetch(bool exists, int position, int item_count, int est_size) const;
  void log_insert(int items_removed, int item_count, int est_size) const;
};

#endif


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