timeval calcualtions - timeradd/timersub

[permal]

Hi,

In various posts on this forum we're recommended to use

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gettimeofday()

to get time stamps, but we're missing the convenience macros timeradd & timersub which are located in source file xtensa-esp32-elf/include/sys/time.h. Unfortunately, the entire file is #ifdef'd with

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#if defined (__rtems__) || defined (__CYGWIN__)

so these macros are not available to use when developing for the ESP32.

Are there any plans on making them available for ESP32 development so that we don't have to provide our own copy of them?

[BuddyCasino]

+1 for an easy timer API - I researched quite some time which of the various time APIs are the best fit to measure execution time of functions in millis/nanos.

[permal]

@BuddyCasino Care to share your results?

[BuddyCasino]

Look at timersub / timeradd in https://github.com/nkolban/esp32-snippe ... QTTLinux.c.
Its basically gettimeofday() with some macros. Not sure thats the best way.

[permal]

Those looks like an exact copy of the macros in the file I referenced in my original post.

Lets hope Espressif can give us a positive answer to my initial question.

[igrr]

If you don't mind, please open a Github issue for this. That would reduce the chances of us forgetting about this request.

[permal]

Of course.

https://github.com/espressif/esp-idf/issues/867

[kolban]

The timeval utilities I use in projects can be found here:

https://github.com/nkolban/duktape-esp3 ... imeutils.c