2 * Copyright (c) 2018 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #ifndef included_time_range_h
17 #define included_time_range_h
19 #include <vppinfra/format.h>
20 #include <vppinfra/time.h>
24 CLIB_TIMEBASE_DAYLIGHT_NONE = 0,
25 CLIB_TIMEBASE_DAYLIGHT_USA,
26 } clib_timebase_daylight_time_t;
30 /* provides f64 seconds since clib_time_init was called */
31 clib_time_t clib_time;
33 * time in f64 seconds since Thursday 1 Jan 1970 00:00:00 UTC
34 * when clib_time_init was called
39 clib_timebase_daylight_time_t daylight_time_type;
40 f64 cached_year_start;
42 f64 cached_summer_start;
43 f64 cached_summer_end;
48 u32 year, month, day, hour, minute, second, nanosecond;
51 f64 fractional_seconds;
52 } clib_timebase_component_t;
57 } clib_timebase_range_t;
59 void clib_timebase_init (clib_timebase_t * tb, i32 timezone_offset_in_hours,
60 clib_timebase_daylight_time_t daylight_type);
62 void clib_timebase_time_to_components (f64 now,
63 clib_timebase_component_t * cp);
65 f64 clib_timebase_components_to_time (clib_timebase_component_t * cp);
67 f64 clib_timebase_find_sunday_midnight (f64 start_time);
68 f64 clib_timebase_offset_from_sunday (u8 * day);
69 f64 clib_timebase_summer_offset (clib_timebase_t * tb, f64 now);
71 unformat_function_t unformat_clib_timebase_range_hms;
72 unformat_function_t unformat_clib_timebase_range_vector;
74 format_function_t format_clib_timebase_time;
76 static inline f64 clib_timebase_summer_offset_fastpath
77 (clib_timebase_t * tb, f64 now)
80 (now >= tb->cached_year_start && now <= tb->cached_year_end))
82 if (now >= tb->cached_summer_start && now <= tb->cached_summer_end)
83 return tb->summer_offset;
88 return clib_timebase_summer_offset (tb, now);
92 clib_timebase_now (clib_timebase_t * tb)
96 now = tb->time_zero + clib_time_now (&tb->clib_time);
97 now += tb->timezone_offset;
98 now += clib_timebase_summer_offset_fastpath (tb, now);
104 clib_timebase_is_leap_year (u32 year)
108 if (PREDICT_TRUE ((year % 4) != 0))
115 if ((year % 100) == 0)
117 if ((year % 400) == 0)
122 #endif /* included_time_range_h */
126 * fd.io coding-style-patch-verification: ON
129 * eval: (c-set-style "gnu")