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-rw-r--r--modules/md/md_time.c325
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diff --git a/modules/md/md_time.c b/modules/md/md_time.c
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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.
+ */
+
+#include <stdio.h>
+
+#include <apr_lib.h>
+#include <apr_strings.h>
+#include <apr_time.h>
+
+#include "md.h"
+#include "md_time.h"
+
+apr_time_t md_timeperiod_length(const md_timeperiod_t *period)
+{
+ return (period->start < period->end)? (period->end - period->start) : 0;
+}
+
+int md_timeperiod_contains(const md_timeperiod_t *period, apr_time_t time)
+{
+ return md_timeperiod_has_started(period, time)
+ && !md_timeperiod_has_ended(period, time);
+}
+
+int md_timeperiod_has_started(const md_timeperiod_t *period, apr_time_t time)
+{
+ return (time >= period->start);
+}
+
+int md_timeperiod_has_ended(const md_timeperiod_t *period, apr_time_t time)
+{
+ return (time >= period->start) && (time <= period->end);
+}
+
+apr_interval_time_t md_timeperiod_remaining(const md_timeperiod_t *period, apr_time_t time)
+{
+ if (time < period->start) return md_timeperiod_length(period);
+ if (time < period->end) return period->end - time;
+ return 0;
+}
+
+char *md_timeperiod_print(apr_pool_t *p, const md_timeperiod_t *period)
+{
+ char tstart[APR_RFC822_DATE_LEN];
+ char tend[APR_RFC822_DATE_LEN];
+
+ apr_rfc822_date(tstart, period->start);
+ apr_rfc822_date(tend, period->end);
+ return apr_pstrcat(p, tstart, " - ", tend, NULL);
+}
+
+static const char *duration_print(apr_pool_t *p, int roughly, apr_interval_time_t duration)
+{
+ const char *s = "", *sep = "";
+ long days = (long)(apr_time_sec(duration) / MD_SECS_PER_DAY);
+ int rem = (int)(apr_time_sec(duration) % MD_SECS_PER_DAY);
+
+ s = roughly? "~" : "";
+ if (days > 0) {
+ s = apr_psprintf(p, "%s%ld days", s, days);
+ if (roughly) return s;
+ sep = " ";
+ }
+ if (rem > 0) {
+ int hours = (rem / MD_SECS_PER_HOUR);
+ rem = (rem % MD_SECS_PER_HOUR);
+ if (hours > 0) {
+ s = apr_psprintf(p, "%s%s%d hours", s, sep, hours);
+ if (roughly) return s;
+ sep = " ";
+ }
+ if (rem > 0) {
+ int minutes = (rem / 60);
+ rem = (rem % 60);
+ if (minutes > 0) {
+ s = apr_psprintf(p, "%s%s%d minutes", s, sep, minutes);
+ if (roughly) return s;
+ sep = " ";
+ }
+ if (rem > 0) {
+ s = apr_psprintf(p, "%s%s%d seconds", s, sep, rem);
+ if (roughly) return s;
+ sep = " ";
+ }
+ }
+ }
+ else if (days == 0) {
+ s = "0 seconds";
+ if (duration != 0) {
+ s = apr_psprintf(p, "%d ms", (int)apr_time_msec(duration));
+ }
+ }
+ return s;
+}
+
+const char *md_duration_print(apr_pool_t *p, apr_interval_time_t duration)
+{
+ return duration_print(p, 0, duration);
+}
+
+const char *md_duration_roughly(apr_pool_t *p, apr_interval_time_t duration)
+{
+ return duration_print(p, 1, duration);
+}
+
+static const char *duration_format(apr_pool_t *p, apr_interval_time_t duration)
+{
+ const char *s = "0";
+ int units = (int)(apr_time_sec(duration) / MD_SECS_PER_DAY);
+ int rem = (int)(apr_time_sec(duration) % MD_SECS_PER_DAY);
+
+ if (rem == 0) {
+ s = apr_psprintf(p, "%dd", units);
+ }
+ else {
+ units = (int)(apr_time_sec(duration) / MD_SECS_PER_HOUR);
+ rem = (int)(apr_time_sec(duration) % MD_SECS_PER_HOUR);
+ if (rem == 0) {
+ s = apr_psprintf(p, "%dh", units);
+ }
+ else {
+ units = (int)(apr_time_sec(duration) / 60);
+ rem = (int)(apr_time_sec(duration) % 60);
+ if (rem == 0) {
+ s = apr_psprintf(p, "%dmi", units);
+ }
+ else {
+ units = (int)(apr_time_sec(duration));
+ rem = (int)(apr_time_msec(duration) % 1000);
+ if (rem == 0) {
+ s = apr_psprintf(p, "%ds", units);
+ }
+ else {
+ s = apr_psprintf(p, "%dms", (int)(apr_time_msec(duration)));
+ }
+ }
+ }
+ }
+ return s;
+}
+
+const char *md_duration_format(apr_pool_t *p, apr_interval_time_t duration)
+{
+ return duration_format(p, duration);
+}
+
+apr_status_t md_duration_parse(apr_interval_time_t *ptimeout, const char *value,
+ const char *def_unit)
+{
+ char *endp;
+ apr_int64_t n;
+
+ n = apr_strtoi64(value, &endp, 10);
+ if (errno) {
+ return errno;
+ }
+ if (!endp || !*endp) {
+ if (!def_unit) def_unit = "s";
+ }
+ else if (endp == value) {
+ return APR_EINVAL;
+ }
+ else {
+ def_unit = endp;
+ }
+
+ switch (*def_unit) {
+ case 'D':
+ case 'd':
+ *ptimeout = apr_time_from_sec(n * MD_SECS_PER_DAY);
+ break;
+ case 's':
+ case 'S':
+ *ptimeout = (apr_interval_time_t) apr_time_from_sec(n);
+ break;
+ case 'h':
+ case 'H':
+ /* Time is in hours */
+ *ptimeout = (apr_interval_time_t) apr_time_from_sec(n * MD_SECS_PER_HOUR);
+ break;
+ case 'm':
+ case 'M':
+ switch (*(++def_unit)) {
+ /* Time is in milliseconds */
+ case 's':
+ case 'S':
+ *ptimeout = (apr_interval_time_t) n * 1000;
+ break;
+ /* Time is in minutes */
+ case 'i':
+ case 'I':
+ *ptimeout = (apr_interval_time_t) apr_time_from_sec(n * 60);
+ break;
+ default:
+ return APR_EGENERAL;
+ }
+ break;
+ default:
+ return APR_EGENERAL;
+ }
+ return APR_SUCCESS;
+}
+
+static apr_status_t percentage_parse(const char *value, int *ppercent)
+{
+ char *endp;
+ apr_int64_t n;
+
+ n = apr_strtoi64(value, &endp, 10);
+ if (errno) {
+ return errno;
+ }
+ if (*endp == '%') {
+ if (n < 0) {
+ return APR_BADARG;
+ }
+ *ppercent = (int)n;
+ return APR_SUCCESS;
+ }
+ return APR_EINVAL;
+}
+
+apr_status_t md_timeslice_create(md_timeslice_t **pts, apr_pool_t *p,
+ apr_interval_time_t norm, apr_interval_time_t len)
+{
+ md_timeslice_t *ts;
+
+ ts = apr_pcalloc(p, sizeof(*ts));
+ ts->norm = norm;
+ ts->len = len;
+ *pts = ts;
+ return APR_SUCCESS;
+}
+
+const char *md_timeslice_parse(md_timeslice_t **pts, apr_pool_t *p,
+ const char *val, apr_interval_time_t norm)
+{
+ md_timeslice_t *ts;
+ int percent = 0;
+
+ *pts = NULL;
+ if (!val) {
+ return "cannot parse NULL value";
+ }
+
+ ts = apr_pcalloc(p, sizeof(*ts));
+ if (md_duration_parse(&ts->len, val, "d") == APR_SUCCESS) {
+ *pts = ts;
+ return NULL;
+ }
+ else {
+ switch (percentage_parse(val, &percent)) {
+ case APR_SUCCESS:
+ ts->norm = norm;
+ ts->len = apr_time_from_sec((apr_time_sec(norm) * percent / 100L));
+ *pts = ts;
+ return NULL;
+ case APR_BADARG:
+ return "percent must be less than 100";
+ }
+ }
+ return "has unrecognized format";
+}
+
+const char *md_timeslice_format(const md_timeslice_t *ts, apr_pool_t *p) {
+ if (ts->norm > 0) {
+ int percent = (int)(((long)apr_time_sec(ts->len)) * 100L
+ / ((long)apr_time_sec(ts->norm)));
+ return apr_psprintf(p, "%d%%", percent);
+ }
+ return duration_format(p, ts->len);
+}
+
+md_timeperiod_t md_timeperiod_slice_before_end(const md_timeperiod_t *period,
+ const md_timeslice_t *ts)
+{
+ md_timeperiod_t r;
+ apr_time_t duration = ts->len;
+
+ if (ts->norm > 0) {
+ int percent = (int)(((long)apr_time_sec(ts->len)) * 100L
+ / ((long)apr_time_sec(ts->norm)));
+ apr_time_t plen = md_timeperiod_length(period);
+ if (apr_time_sec(plen) > 100) {
+ duration = apr_time_from_sec(apr_time_sec(plen) * percent / 100);
+ }
+ else {
+ duration = plen * percent / 100;
+ }
+ }
+ r.start = period->end - duration;
+ r.end = period->end;
+ return r;
+}
+
+int md_timeslice_eq(const md_timeslice_t *ts1, const md_timeslice_t *ts2)
+{
+ if (ts1 == ts2) return 1;
+ if (!ts1 || !ts2) return 0;
+ return (ts1->norm == ts2->norm) && (ts1->len == ts2->len);
+}
+
+md_timeperiod_t md_timeperiod_common(const md_timeperiod_t *a, const md_timeperiod_t *b)
+{
+ md_timeperiod_t c;
+
+ c.start = (a->start > b->start)? a->start : b->start;
+ c.end = (a->end < b->end)? a->end : b->end;
+ if (c.start > c.end) {
+ c.start = c.end = 0;
+ }
+ return c;
+}