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diff --git a/rubbos/app/httpd-2.0.64/include/util_time.h b/rubbos/app/httpd-2.0.64/include/util_time.h
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+/* 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.
+ */
+
+#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 */