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2025-07-09shared/timeutils: Standardize supported date range on all platforms.Yoctopuce dev
This is code makes sure that time functions work properly on a reasonable date range, on all platforms, regardless of the epoch. The suggested minimum range is 1970 to 2099. In order to reduce code footprint, code to support far away dates is only enabled specified by the port. New types are defined to identify timestamps. The implementation with the smallest code footprint is when support timerange is limited to 1970-2099 and Epoch is 1970. This makes it possible to use 32 bit unsigned integers for all timestamps. On ARM4F, adding support for dates up to year 3000 adds 460 bytes of code. Supporting dates back to 1600 adds another 44 bytes of code. Signed-off-by: Yoctopuce dev <dev@yoctopuce.com>
2025-01-02shared/timeutils: Add missing mp_uint_t casts.Yoctopuce
To prevent compiler warnings. Signed-off-by: Yoctopuce <dev@yoctopuce.com>
2024-10-24shared/timeutils: Document the range of year/month/day etc input values.Damien George
These differ to, eg, the standard `mktime()` function. Signed-off-by: Damien George <damien@micropython.org>
2024-03-07all: Remove the "STATIC" macro and just use "static" instead.Angus Gratton
The STATIC macro was introduced a very long time ago in commit d5df6cd44a433d6253a61cb0f987835fbc06b2de. The original reason for this was to have the option to define it to nothing so that all static functions become global functions and therefore visible to certain debug tools, so one could do function size comparison and other things. This STATIC feature is rarely (if ever) used. And with the use of LTO and heavy inline optimisation, analysing the size of individual functions when they are not static is not a good representation of the size of code when fully optimised. So the macro does not have much use and it's simpler to just remove it. Then you know exactly what it's doing. For example, newcomers don't have to learn what the STATIC macro is and why it exists. Reading the code is also less "loud" with a lowercase static. One other minor point in favour of removing it, is that it stops bugs with `STATIC inline`, which should always be `static inline`. Methodology for this commit was: 1) git ls-files | egrep '\.[ch]$' | \ xargs sed -Ei "s/(^| )STATIC($| )/\1static\2/" 2) Do some manual cleanup in the diff by searching for the word STATIC in comments and changing those back. 3) "git-grep STATIC docs/", manually fixed those cases. 4) "rg -t python STATIC", manually fixed codegen lines that used STATIC. This work was funded through GitHub Sponsors. Signed-off-by: Angus Gratton <angus@redyak.com.au>
2024-02-15shared/timeutils: Remove useless void-return.Yoctopuce
The C99 standard states: 6.8.6.4 The return statement Constraints A return statement with an expression shall not appear in a function whose return type is void. A return statement without an expression shall only appear in a function whose return type is void. And when `-pedantic` is enabled the compiler gives an error. Signed-off-by: Yoctopuce <dev@yoctopuce.com>
2022-04-11mimxrt/machine_rtc: Start RTC at boot and set datetime if not set.robert-hh
Changes in this commit: - Start the RTC Timer at system boot. Otherwise time.time() will advance only if an RTC() object was created. - Set the time to a more recent date than Jan 1, 1970, if not set. That is 2013/10/14, 19:53:11, MicroPython's first commit. - Compensate an underflow in in timeutils_seconds_since_2000(), called by time.time(), if the time is set to a pre-2000 date.
2021-07-12all: Update to point to files in new shared/ directory.Damien George
Signed-off-by: Damien George <damien@micropython.org>
2021-07-12shared: Introduce new top-level dir and move 1st party lib code there.Damien George
This commit moves all first-party code developed for this project from lib/ to shared/, so that lib/ now only contains third-party code. The following directories are moved as-is from lib to shared: lib/libc -> shared/libc lib/memzip -> shared/memzip lib/netutils -> shared/netutils lib/timeutils -> shared/timeutils lib/upytesthelper -> shared/upytesthelper All files in lib/embed/ have been moved to shared/libc/. lib/mp-readline has been moved to shared/readline. lib/utils has been moved to shared/runtime, with the exception of lib/utils/printf.c which has been moved to shared/libc/printf.c. Signed-off-by: Damien George <damien@micropython.org>