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panda/src/downloader/httpDate.h

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// Filename: httpDate.h
// Created by:  drose (28Jan03)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license.  You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://www.panda3d.org/license.txt .
//
// To contact the maintainers of this program write to
// panda3d@yahoogroups.com .
//
////////////////////////////////////////////////////////////////////

#ifndef HTTPDATE_H
#define HTTPDATE_H

#include "pandabase.h"

#include <time.h>

////////////////////////////////////////////////////////////////////
//       Class : HTTPDate
// Description : A container for an HTTP-legal time/date indication.
//               This can accept a string from an HTTP header and will
//               decode it into a C time_t value; conversely, it can
//               accept a time_t value and encode it for output as a
//               string.
////////////////////////////////////////////////////////////////////
class EXPCL_PANDAEXPRESS HTTPDate {
PUBLISHED:
  INLINE HTTPDate();
  INLINE HTTPDate(time_t time);
  HTTPDate(const string &format);
  INLINE HTTPDate(const HTTPDate &copy);
  INLINE void operator = (const HTTPDate &copy);
  INLINE static HTTPDate now();

  INLINE bool is_valid() const;

  string get_string() const;
  INLINE time_t get_time() const;

  INLINE bool operator == (const HTTPDate &other) const;
  INLINE bool operator != (const HTTPDate &other) const;
  INLINE bool operator < (const HTTPDate &other) const;
  INLINE bool operator > (const HTTPDate &other) const;
  INLINE int compare_to(const HTTPDate &other) const;

  INLINE void operator += (int seconds);
  INLINE void operator -= (int seconds);

  INLINE HTTPDate operator + (int seconds) const;
  INLINE HTTPDate operator - (int seconds) const;
  INLINE int operator - (const HTTPDate &other) const;

  bool input(istream &in);
  void output(ostream &out) const;

private:
  static string get_token(const string &str, size_t &pos);

  time_t _time;
};

INLINE istream &operator >> (istream &in, HTTPDate &date);
INLINE ostream &operator << (ostream &out, const HTTPDate &date);

#include "httpDate.I"

#endif

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