Correct method of stopping main.py via firmware

[BrunoESP32]

Hi,

I'm developing an application in conjunction with the micropython firmware and I need to restart the python codes that are running.

I would like to know what would be the best solution to stop main.py or restart mp_task in the most correct way from another task.

  // run boot-up scripts
  pyexec_frozen_module("_boot.py", false);
  pyexec_file_if_exists("boot.py");
  if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
      int ret = pyexec_file_if_exists("main.py");
      if (ret & PYEXEC_FORCED_EXIT) {
          goto soft_reset_exit;
      }
  }

if I achieve a soft_reset_exit or soft_reset that would be fine too.

[robert-hh]

What stops you from calling machine.soft_reset()?

[BrunoESP32]

Hi, robert-hh

Thanks for the answer.

The Python programs that are currently running are user programs, made on a website by them. I can even force them to call machine.soft_reset() in pyhton (I do something similar, I have a routine in python that expects a flag, from a task using a cmodule, to apply the machine.soft_reset() command), but it's a solution that I never liked.

[dlech]

Perhaps mp_sched_vm_abort() is what you are looking for?

[BrunoESP32]

Hi dlech

Thanks for the replay.

You are probably correct. Just to inform you, I'm using version 1.20.0 of the firmware and I saw that this function really exists, I had to enable it in py/mpconfig.h to be able to compile::

// Whether to support mp_sched_vm_abort to asynchronously abort to the top level.
#ifndef MICROPY_ENABLE_VM_ABORT
#define MICROPY_ENABLE_VM_ABORT (1)
#endif

I managed to compile the firmware, but when I call the mp_sched_vm_abort() function in main.c it is not stopping the python codes. What am I doing wrong?

Thank you very much for the suggestion.

[dlech]

You have to also modify the main.c (or other appropriate file) for whichever port you are using. The commit message (linked below) has some more info on how you would do this.

d54208a

[BrunoESP32]

Thanks dlech!