-/* ====================================================================
- * The Apache Software License, Version 1.1
+/* 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
*
- * Copyright (c) 2001 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/>.
+ * 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.
*/
#include "util_time.h"
+#include "apr_env.h"
+
+
+
+/* Number of characters needed to format the microsecond part of a timestamp.
+ * Microseconds have 6 digits plus one separator character makes 7.
+ * */
+#define AP_CTIME_USEC_LENGTH 7
+
+/* Length of ISO 8601 date/time */
+#define AP_CTIME_COMPACT_LEN 20
+
/* Cache for exploded values of recent timestamps
*/
struct exploded_time_cache_element {
apr_int64_t t;
- apr_exploded_time_t xt;
+ apr_time_exp_t xt;
apr_int64_t t_validate; /* please see comments in cached_explode() */
};
/* the "+ 1" is for the current second: */
#define TIME_CACHE_SIZE (AP_TIME_RECENT_THRESHOLD + 1)
+/* Note that AP_TIME_RECENT_THRESHOLD is defined to
+ * be a power of two minus one in util_time.h, so that
+ * we can replace a modulo operation with a bitwise AND
+ * when hashing items into a cache of size
+ * AP_TIME_RECENT_THRESHOLD+1
+ */
+#define TIME_CACHE_MASK (AP_TIME_RECENT_THRESHOLD)
+
static struct exploded_time_cache_element exploded_cache_localtime[TIME_CACHE_SIZE];
static struct exploded_time_cache_element exploded_cache_gmt[TIME_CACHE_SIZE];
-static apr_status_t cached_explode(apr_exploded_time_t *xt, apr_time_t t,
+static apr_status_t cached_explode(apr_time_exp_t *xt, apr_time_t t,
struct exploded_time_cache_element *cache,
int use_gmt)
{
- apr_int64_t seconds = t / APR_USEC_PER_SEC;
+ apr_int64_t seconds = apr_time_sec(t);
struct exploded_time_cache_element *cache_element =
- &(cache[seconds % TIME_CACHE_SIZE]);
+ &(cache[seconds & TIME_CACHE_MASK]);
struct exploded_time_cache_element cache_element_snapshot;
/* The cache is implemented as a ring buffer. Each second,
* exploded time for the current second (vs the time
* 'now - AP_TIME_RECENT_THRESHOLD' seconds ago). If the
* cached value is for the current time, we use it. Otherwise,
- * we compute the apr_exploded_time_t and store it in this
+ * we compute the apr_time_exp_t and store it in this
* cache element. Note that the timestamp in the cache
* element is updated only after the exploded time. Thus
* if two threads hit this cache element simultaneously
(seconds != cache_element_snapshot.t_validate)) {
/* Invalid snapshot */
if (use_gmt) {
- return apr_explode_gmt(xt, t);
+ return apr_time_exp_gmt(xt, t);
}
else {
- return apr_explode_localtime(xt, t);
+ return apr_time_exp_lt(xt, t);
}
}
else {
/* Valid snapshot */
memcpy(xt, &(cache_element_snapshot.xt),
- sizeof(apr_exploded_time_t));
+ sizeof(apr_time_exp_t));
}
}
else {
apr_status_t r;
if (use_gmt) {
- r = apr_explode_gmt(xt, t);
+ r = apr_time_exp_gmt(xt, t);
}
else {
- r = apr_explode_localtime(xt, t);
+ r = apr_time_exp_lt(xt, t);
}
- if (!APR_STATUS_IS_SUCCESS(r)) {
+ if (r != APR_SUCCESS) {
return r;
}
cache_element->t = seconds;
- memcpy(&(cache_element->xt), xt, sizeof(apr_exploded_time_t));
+ memcpy(&(cache_element->xt), xt, sizeof(apr_time_exp_t));
cache_element->t_validate = seconds;
}
- xt->tm_usec = t % APR_USEC_PER_SEC;
+ xt->tm_usec = (int)apr_time_usec(t);
return APR_SUCCESS;
}
-AP_DECLARE(apr_status_t) ap_explode_recent_localtime(apr_exploded_time_t * tm,
+AP_DECLARE(apr_status_t) ap_explode_recent_localtime(apr_time_exp_t * tm,
apr_time_t t)
{
return cached_explode(tm, t, exploded_cache_localtime, 0);
}
-AP_DECLARE(apr_status_t) ap_explode_recent_gmt(apr_exploded_time_t * tm,
+AP_DECLARE(apr_status_t) ap_explode_recent_gmt(apr_time_exp_t * tm,
apr_time_t t)
{
return cached_explode(tm, t, exploded_cache_gmt, 1);
}
+
+AP_DECLARE(apr_status_t) ap_recent_ctime(char *date_str, apr_time_t t)
+{
+ int len = APR_CTIME_LEN;
+ return ap_recent_ctime_ex(date_str, t, AP_CTIME_OPTION_NONE, &len);
+}
+
+AP_DECLARE(apr_status_t) ap_recent_ctime_ex(char *date_str, apr_time_t t,
+ int option, int *len)
+{
+ /* ### This code is a clone of apr_ctime(), except that it
+ * uses ap_explode_recent_localtime() instead of apr_time_exp_lt().
+ */
+ apr_time_exp_t xt;
+ const char *s;
+ int real_year;
+ int needed;
+
+
+ /* Calculate the needed buffer length */
+ if (option & AP_CTIME_OPTION_COMPACT)
+ needed = AP_CTIME_COMPACT_LEN;
+ else
+ needed = APR_CTIME_LEN;
+
+ if (option & AP_CTIME_OPTION_USEC) {
+ needed += AP_CTIME_USEC_LENGTH;
+ }
+
+ /* Check the provided buffer length */
+ if (len && *len >= needed) {
+ *len = needed;
+ }
+ else {
+ if (len != NULL) {
+ *len = 0;
+ }
+ return APR_ENOMEM;
+ }
+
+ /* example without options: "Wed Jun 30 21:49:08 1993" */
+ /* 123456789012345678901234 */
+ /* example for compact format: "1993-06-30 21:49:08" */
+ /* 1234567890123456789 */
+
+ ap_explode_recent_localtime(&xt, t);
+ real_year = 1900 + xt.tm_year;
+ if (option & AP_CTIME_OPTION_COMPACT) {
+ int real_month = xt.tm_mon + 1;
+ *date_str++ = real_year / 1000 + '0';
+ *date_str++ = real_year % 1000 / 100 + '0';
+ *date_str++ = real_year % 100 / 10 + '0';
+ *date_str++ = real_year % 10 + '0';
+ *date_str++ = '-';
+ *date_str++ = real_month / 10 + '0';
+ *date_str++ = real_month % 10 + '0';
+ *date_str++ = '-';
+ }
+ else {
+ s = &apr_day_snames[xt.tm_wday][0];
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = ' ';
+ s = &apr_month_snames[xt.tm_mon][0];
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = ' ';
+ }
+ *date_str++ = xt.tm_mday / 10 + '0';
+ *date_str++ = xt.tm_mday % 10 + '0';
+ *date_str++ = ' ';
+ *date_str++ = xt.tm_hour / 10 + '0';
+ *date_str++ = xt.tm_hour % 10 + '0';
+ *date_str++ = ':';
+ *date_str++ = xt.tm_min / 10 + '0';
+ *date_str++ = xt.tm_min % 10 + '0';
+ *date_str++ = ':';
+ *date_str++ = xt.tm_sec / 10 + '0';
+ *date_str++ = xt.tm_sec % 10 + '0';
+ if (option & AP_CTIME_OPTION_USEC) {
+ int div;
+ int usec = (int)xt.tm_usec;
+ *date_str++ = '.';
+ for (div=100000; div>0; div=div/10) {
+ *date_str++ = usec / div + '0';
+ usec = usec % div;
+ }
+ }
+ if (!(option & AP_CTIME_OPTION_COMPACT)) {
+ *date_str++ = ' ';
+ *date_str++ = real_year / 1000 + '0';
+ *date_str++ = real_year % 1000 / 100 + '0';
+ *date_str++ = real_year % 100 / 10 + '0';
+ *date_str++ = real_year % 10 + '0';
+ }
+ *date_str++ = 0;
+
+ return APR_SUCCESS;
+}
+
+AP_DECLARE(apr_status_t) ap_recent_rfc822_date(char *date_str, apr_time_t t)
+{
+ /* ### This code is a clone of apr_rfc822_date(), except that it
+ * uses ap_explode_recent_gmt() instead of apr_time_exp_gmt().
+ */
+ apr_time_exp_t xt;
+ const char *s;
+ int real_year;
+
+ ap_explode_recent_gmt(&xt, t);
+
+ /* example: "Sat, 08 Jan 2000 18:31:41 GMT" */
+ /* 12345678901234567890123456789 */
+
+ s = &apr_day_snames[xt.tm_wday][0];
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = ',';
+ *date_str++ = ' ';
+ *date_str++ = xt.tm_mday / 10 + '0';
+ *date_str++ = xt.tm_mday % 10 + '0';
+ *date_str++ = ' ';
+ s = &apr_month_snames[xt.tm_mon][0];
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = *s++;
+ *date_str++ = ' ';
+ real_year = 1900 + xt.tm_year;
+ /* This routine isn't y10k ready. */
+ *date_str++ = real_year / 1000 + '0';
+ *date_str++ = real_year % 1000 / 100 + '0';
+ *date_str++ = real_year % 100 / 10 + '0';
+ *date_str++ = real_year % 10 + '0';
+ *date_str++ = ' ';
+ *date_str++ = xt.tm_hour / 10 + '0';
+ *date_str++ = xt.tm_hour % 10 + '0';
+ *date_str++ = ':';
+ *date_str++ = xt.tm_min / 10 + '0';
+ *date_str++ = xt.tm_min % 10 + '0';
+ *date_str++ = ':';
+ *date_str++ = xt.tm_sec / 10 + '0';
+ *date_str++ = xt.tm_sec % 10 + '0';
+ *date_str++ = ' ';
+ *date_str++ = 'G';
+ *date_str++ = 'M';
+ *date_str++ = 'T';
+ *date_str++ = 0;
+ return APR_SUCCESS;
+}
+
+AP_DECLARE(void) ap_force_set_tz(apr_pool_t *p) {
+ /* If the TZ variable is unset, many operating systems,
+ * such as Linux, will at runtime read from /etc/localtime
+ * and call fstat on it.
+ *
+ * By forcing the time zone to UTC if it is unset, we gain
+ * about 2% in raw requests/second (since we format log files
+ * in the local time, if present)
+ *
+ * For more info, see:
+ * <http://www.gnu.org/s/hello/manual/libc/TZ-Variable.html>
+ */
+ char *v = NULL;
+
+ if (apr_env_get(&v, "TZ", p) != APR_SUCCESS) {
+ apr_env_set("TZ", "UTC+0", p);
+ }
+}