Amit Gandhi / mbed-dev

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platform/mbed_mktime.h@168:e84263d55307, 2017-06-21 (annotated)

Committer:
AnnaBridge
Date:
Wed Jun 21 17:46:44 2017 +0100
Revision:
168:e84263d55307
This updates the lib to the mbed lib v 145

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 168:e84263d55307 1
AnnaBridge 168:e84263d55307 2 /** \addtogroup platform */
AnnaBridge 168:e84263d55307 3 /** @{*/
AnnaBridge 168:e84263d55307 4 /* mbed Microcontroller Library
AnnaBridge 168:e84263d55307 5 * Copyright (c) 2017-2017 ARM Limited
AnnaBridge 168:e84263d55307 6 *
AnnaBridge 168:e84263d55307 7 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 168:e84263d55307 8 * you may not use this file except in compliance with the License.
AnnaBridge 168:e84263d55307 9 * You may obtain a copy of the License at
AnnaBridge 168:e84263d55307 10 *
AnnaBridge 168:e84263d55307 11 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 168:e84263d55307 12 *
AnnaBridge 168:e84263d55307 13 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 168:e84263d55307 14 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 168:e84263d55307 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 168:e84263d55307 16 * See the License for the specific language governing permissions and
AnnaBridge 168:e84263d55307 17 * limitations under the License.
AnnaBridge 168:e84263d55307 18 */
AnnaBridge 168:e84263d55307 19
AnnaBridge 168:e84263d55307 20 #ifndef MBED_MKTIME_H
AnnaBridge 168:e84263d55307 21 #define MBED_MKTIME_H
AnnaBridge 168:e84263d55307 22
AnnaBridge 168:e84263d55307 23 #include <time.h>
AnnaBridge 168:e84263d55307 24 #include <stdbool.h>
AnnaBridge 168:e84263d55307 25 #include <stdint.h>
AnnaBridge 168:e84263d55307 26
AnnaBridge 168:e84263d55307 27 #ifdef __cplusplus
AnnaBridge 168:e84263d55307 28 extern "C" {
AnnaBridge 168:e84263d55307 29 #endif
AnnaBridge 168:e84263d55307 30
AnnaBridge 168:e84263d55307 31 /** Compute if a year is a leap year or not.
AnnaBridge 168:e84263d55307 32 *
AnnaBridge 168:e84263d55307 33 * @param year The year to test it shall be in the range [70:138]. Year 0 is
AnnaBridge 168:e84263d55307 34 * translated into year 1900 CE.
AnnaBridge 168:e84263d55307 35 * @return true if the year in input is a leap year and false otherwise.
AnnaBridge 168:e84263d55307 36 * @note - For use by the HAL only
AnnaBridge 168:e84263d55307 37 */
AnnaBridge 168:e84263d55307 38 bool _rtc_is_leap_year(int year);
AnnaBridge 168:e84263d55307 39
AnnaBridge 168:e84263d55307 40 /* Convert a calendar time into time since UNIX epoch as a time_t.
AnnaBridge 168:e84263d55307 41 *
AnnaBridge 168:e84263d55307 42 * This function is a thread safe (partial) replacement for mktime. It is
AnnaBridge 168:e84263d55307 43 * tailored around RTC peripherals needs and is not by any mean a complete
AnnaBridge 168:e84263d55307 44 * replacement of mktime.
AnnaBridge 168:e84263d55307 45 *
AnnaBridge 168:e84263d55307 46 * @param calendar_time The calendar time to convert into a time_t since epoch.
AnnaBridge 168:e84263d55307 47 * The fields from tm used for the computation are:
AnnaBridge 168:e84263d55307 48 * - tm_sec
AnnaBridge 168:e84263d55307 49 * - tm_min
AnnaBridge 168:e84263d55307 50 * - tm_hour
AnnaBridge 168:e84263d55307 51 * - tm_mday
AnnaBridge 168:e84263d55307 52 * - tm_mon
AnnaBridge 168:e84263d55307 53 * - tm_year
AnnaBridge 168:e84263d55307 54 * Other fields are ignored and won't be renormalized by a call to this function.
AnnaBridge 168:e84263d55307 55 * A valid calendar time is comprised between the 1st january of 1970 at
AnnaBridge 168:e84263d55307 56 * 00:00:00 and the 19th of january 2038 at 03:14:07.
AnnaBridge 168:e84263d55307 57 *
AnnaBridge 168:e84263d55307 58 * @return The calendar time as seconds since UNIX epoch if the input is in the
AnnaBridge 168:e84263d55307 59 * valid range. Otherwise ((time_t) -1).
AnnaBridge 168:e84263d55307 60 *
AnnaBridge 168:e84263d55307 61 * @note Leap seconds are not supported.
AnnaBridge 168:e84263d55307 62 * @note Values in output range from 0 to INT_MAX.
AnnaBridge 168:e84263d55307 63 * @note - For use by the HAL only
AnnaBridge 168:e84263d55307 64 */
AnnaBridge 168:e84263d55307 65 time_t _rtc_mktime(const struct tm* calendar_time);
AnnaBridge 168:e84263d55307 66
AnnaBridge 168:e84263d55307 67 /* Convert a given time in seconds since epoch into calendar time.
AnnaBridge 168:e84263d55307 68 *
AnnaBridge 168:e84263d55307 69 * This function is a thread safe (partial) replacement for localtime. It is
AnnaBridge 168:e84263d55307 70 * tailored around RTC peripherals specification and is not by any means a
AnnaBridge 168:e84263d55307 71 * complete of localtime.
AnnaBridge 168:e84263d55307 72 *
AnnaBridge 168:e84263d55307 73 * @param timestamp The time (in seconds) to convert into calendar time. Valid
AnnaBridge 168:e84263d55307 74 * input are in the range [0 : INT32_MAX].
AnnaBridge 168:e84263d55307 75 * @param calendar_time Pointer to the object which will contain the result of
AnnaBridge 168:e84263d55307 76 * the conversion. The tm fields filled by this function are:
AnnaBridge 168:e84263d55307 77 * - tm_sec
AnnaBridge 168:e84263d55307 78 * - tm_min
AnnaBridge 168:e84263d55307 79 * - tm_hour
AnnaBridge 168:e84263d55307 80 * - tm_mday
AnnaBridge 168:e84263d55307 81 * - tm_mon
AnnaBridge 168:e84263d55307 82 * - tm_year
AnnaBridge 168:e84263d55307 83 * - tm_wday
AnnaBridge 168:e84263d55307 84 * - tm_yday
AnnaBridge 168:e84263d55307 85 * The object remains untouched if the time in input is invalid.
AnnaBridge 168:e84263d55307 86 * @return true if the conversion was successful, false otherwise.
AnnaBridge 168:e84263d55307 87 *
AnnaBridge 168:e84263d55307 88 * @note - For use by the HAL only
AnnaBridge 168:e84263d55307 89 */
AnnaBridge 168:e84263d55307 90 bool _rtc_localtime(time_t timestamp, struct tm* calendar_time);
AnnaBridge 168:e84263d55307 91
AnnaBridge 168:e84263d55307 92 #ifdef __cplusplus
AnnaBridge 168:e84263d55307 93 }
AnnaBridge 168:e84263d55307 94 #endif
AnnaBridge 168:e84263d55307 95
AnnaBridge 168:e84263d55307 96 #endif /* MBED_MKTIME_H */
AnnaBridge 168:e84263d55307 97
AnnaBridge 168:e84263d55307 98 /** @}*/