/* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * @file util_time.h * @brief Apache date-time handling functions * * @defgroup APACHE_CORE_TIME Date-time handling functions * @ingroup APACHE_CORE * @{ */ #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 /* 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_time_exp_lt 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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