How to achieve one-step debugging？

[imjld]

Now I can use int mb_debug_set_stepped_handler (struct mb_interpreter_t * s,mb_debug_stepped prev,mb_debug_stepped post); I obtained the running status of the code, but when I wanted to pause the basic code for debugging, I found that the provided mb_suspend (struct mb_interpreter_t * s),void * * l) and mb_schedule_suspend (struct mb_interpreter_t * s,Int t) is obsoleted and unable to pause or resume the program. Is there any other way to achieve this function？