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WIP supervisor: check for interrupt during rx_chr

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This commit is contained in:
Jeff Epler 2020-08-23 08:46:42 -05:00
parent dc36a2c0b6
commit f8a9e11ff4
1 changed files with 18 additions and 0 deletions
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18
supervisor/shared/micropython.c
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@ -29,14 +29,32 @@
#include "supervisor/serial.h"
#include "lib/oofatfs/ff.h"
#include "py/mpconfig.h"
#include "py/mpstate.h"
#include "supervisor/shared/status_leds.h"
#if CIRCUITPY_WATCHDOG
#include "shared-bindings/watchdog/__init__.h"
#define WATCHDOG_EXCEPTION_CHECK() (MP_STATE_VM(mp_pending_exception) == &mp_watchdog_timeout_exception)
#else
#define WATCHDOG_EXCEPTION_CHECK() 0
#endif
int mp_hal_stdin_rx_chr(void) {
for (;;) {
#ifdef MICROPY_VM_HOOK_LOOP
MICROPY_VM_HOOK_LOOP
#endif
// Check to see if we've been CTRL-Ced by autoreload or the user.
if (MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception))) {
// clear exception and generate stacktrace
MP_STATE_VM(mp_pending_exception) = MP_OBJ_NULL;
nlr_raise(&MP_STATE_VM(mp_kbd_exception));
}
if (MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception)) || WATCHDOG_EXCEPTION_CHECK()) {
// stop reading immediately
return EOF;
}
if (serial_bytes_available()) {
toggle_rx_led();
return serial_read();