/*
 * DEBUG: section 21    Time Functions
 * AUTHOR: Harvest Derived
 *
 * SQUID Web Proxy Cache          http://www.squid-cache.org/
 * ----------------------------------------------------------
 *
 *  Squid is the result of efforts by numerous individuals from
 *  the Internet community; see the CONTRIBUTORS file for full
 *  details.   Many organizations have provided support for Squid's
 *  development; see the SPONSORS file for full details.  Squid is
 *  Copyrighted (C) 2001 by the Regents of the University of
 *  California; see the COPYRIGHT file for full details.  Squid
 *  incorporates software developed and/or copyrighted by other
 *  sources; see the CREDITS file for full details.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 */
#ifndef   SQUID_TIME_H
#define   SQUID_TIME_H

#include "rfc1123.h"

#if HAVE_TIME_H
#include <time.h>
#endif
/* NP: sys/time.h is provided by libcompat */

/* globals for accessing time */
extern struct timeval current_time;
extern double current_dtime;
extern time_t squid_curtime;

time_t getCurrentTime(void);
int tvSubMsec(struct timeval, struct timeval);

/** event class for doing synthetic time etc */
class TimeEngine
{

public:
    virtual ~TimeEngine();

    /** tick the clock - update from the OS or other time source, */
    virtual void tick();
};

namespace Time
{

/** Display time as a formatted human-readable string.
 * Time syntax is
 * "YYYY/MM/DD hh:mm:ss"
 *
 * Output is only valid until next call to this function.
 */
const char *FormatStrf(time_t t);

/** Display time as a formatted human-readable string.
 * Time string syntax used is that of Apache httpd.
 * "DD/MMM/YYYY:hh:mm:ss zzzz"
 *
 * Output is only valid until next call to this function.
 */
const char *FormatHttpd(time_t t);

} // namespace Time

#endif /* SQUID_TIME_H */