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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
#ifndef APACHE_UTIL_TIME_H
#define APACHE_UTIL_TIME_H
#include "apr.h"
#include "apr_time.h"
#include "httpd.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @package Apache date/time handling functions
*/
/* Maximum delta from the current time, in seconds, for a past time
* to qualify as "recent" for use in the ap_explode_recent_*() functions:
* (Must be a power of two minus one!)
*/
#define AP_TIME_RECENT_THRESHOLD 15
/**
* convert a recent time to its human readable components in local timezone
* @param tm the exploded time
* @param t the time to explode: MUST be within the last
* AP_TIME_RECENT_THRESHOLD seconds
* @note This is a faster alternative to apr_explode_localtime that uses
* a cache of pre-exploded time structures. It is useful for things
* that need to explode the current time multiple times per second,
* like loggers.
* @return APR_SUCCESS iff successful
*/
AP_DECLARE(apr_status_t) ap_explode_recent_localtime(apr_time_exp_t *tm,
apr_time_t t);
/**
* convert a recent time to its human readable components in GMT timezone
* @param tm the exploded time
* @param t the time to explode: MUST be within the last
* AP_TIME_RECENT_THRESHOLD seconds
* @note This is a faster alternative to apr_time_exp_gmt that uses
* a cache of pre-exploded time structures. It is useful for things
* that need to explode the current time multiple times per second,
* like loggers.
* @return APR_SUCCESS iff successful
*/
AP_DECLARE(apr_status_t) ap_explode_recent_gmt(apr_time_exp_t *tm,
apr_time_t t);
/**
* format a recent timestamp in the ctime() format.
* @param date_str String to write to.
* @param t the time to convert
*/
AP_DECLARE(apr_status_t) ap_recent_ctime(char *date_str, apr_time_t t);
/**
* format a recent timestamp in the RFC822 format
* @param date_str String to write to (must have length >= APR_RFC822_DATE_LEN)
* @param t the time to convert
*/
AP_DECLARE(apr_status_t) ap_recent_rfc822_date(char *date_str, apr_time_t t);
#ifdef __cplusplus
}
#endif
#endif /* !APACHE_UTIL_TIME_H */
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