diff options
Diffstat (limited to 'py/scheduler.c')
| -rw-r--r-- | py/scheduler.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/py/scheduler.c b/py/scheduler.c index 3eae8b4fa3..2170b9577e 100644 --- a/py/scheduler.c +++ b/py/scheduler.c @@ -236,7 +236,13 @@ void mp_handle_pending(bool raise_exc) { // Handle any pending callbacks. #if MICROPY_ENABLE_SCHEDULER - if (MP_STATE_VM(sched_state) == MP_SCHED_PENDING) { + bool run_scheduler = (MP_STATE_VM(sched_state) == MP_SCHED_PENDING); + #if MICROPY_PY_THREAD && !MICROPY_PY_THREAD_GIL + // Avoid races by running the scheduler on the main thread, only. + // (Not needed if GIL enabled, as GIL ensures thread safety here.) + run_scheduler = run_scheduler && mp_thread_is_main_thread(); + #endif + if (run_scheduler) { mp_sched_run_pending(); } #endif |