1 /* ====================================================================
2 * The Apache Software License, Version 1.1
4 * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 * ====================================================================
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>.
56 #ifndef APACHE_UTIL_TIME_H
57 #define APACHE_UTIL_TIME_H
68 * @package Apache date-time handling functions
71 /* Maximum delta from the current time, in seconds, for a past time
72 * to qualify as "recent" for use in the ap_explode_recent_*() functions:
73 * (Must be a power of two minus one!)
75 #define AP_TIME_RECENT_THRESHOLD 15
78 * convert a recent time to its human readable components in local timezone
79 * @param tm the exploded time
80 * @param t the time to explode: MUST be within the last
81 * AP_TIME_RECENT_THRESHOLD seconds
82 * @note This is a faster alternative to apr_time_exp_lt that uses
83 * a cache of pre-exploded time structures. It is useful for things
84 * that need to explode the current time multiple times per second,
86 * @return APR_SUCCESS iff successful
88 AP_DECLARE(apr_status_t) ap_explode_recent_localtime(apr_time_exp_t *tm,
92 * convert a recent time to its human readable components in GMT timezone
93 * @param tm the exploded time
94 * @param t the time to explode: MUST be within the last
95 * AP_TIME_RECENT_THRESHOLD seconds
96 * @note This is a faster alternative to apr_time_exp_gmt that uses
97 * a cache of pre-exploded time structures. It is useful for things
98 * that need to explode the current time multiple times per second,
100 * @return APR_SUCCESS iff successful
102 AP_DECLARE(apr_status_t) ap_explode_recent_gmt(apr_time_exp_t *tm,
107 * format a recent timestamp in the ctime() format.
108 * @param date_str String to write to.
109 * @param t the time to convert
111 AP_DECLARE(apr_status_t) ap_recent_ctime(char *date_str, apr_time_t t);
114 * format a recent timestamp in the RFC822 format
115 * @param date_str String to write to (must have length >= APR_RFC822_DATE_LEN)
116 * @param t the time to convert
118 AP_DECLARE(apr_status_t) ap_recent_rfc822_date(char *date_str, apr_time_t t);
124 #endif /* !APACHE_UTIL_TIME_H */