diff options
Diffstat (limited to 'extmod/uos_dupterm.c')
| -rw-r--r-- | extmod/uos_dupterm.c | 42 |
1 files changed, 16 insertions, 26 deletions
diff --git a/extmod/uos_dupterm.c b/extmod/uos_dupterm.c index f77cff577..822d64037 100644 --- a/extmod/uos_dupterm.c +++ b/extmod/uos_dupterm.c @@ -60,25 +60,29 @@ int mp_uos_dupterm_rx_chr(void) { nlr_buf_t nlr; if (nlr_push(&nlr) == 0) { - mp_obj_t readinto_m[3]; - mp_load_method(MP_STATE_VM(dupterm_objs[idx]), MP_QSTR_readinto, readinto_m); - readinto_m[2] = MP_STATE_VM(dupterm_arr_obj); - mp_obj_t res = mp_call_method_n_kw(1, 0, readinto_m); - if (res == mp_const_none) { - nlr_pop(); - } else if (res == MP_OBJ_NEW_SMALL_INT(0)) { + byte buf[1]; + int errcode; + const mp_stream_p_t *stream_p = mp_get_stream_raise(MP_STATE_VM(dupterm_objs[idx]), MP_STREAM_OP_READ); + mp_uint_t out_sz = stream_p->read(MP_STATE_VM(dupterm_objs[idx]), buf, 1, &errcode); + if (out_sz == 0) { nlr_pop(); mp_uos_deactivate(idx, "dupterm: EOF received, deactivating\n", MP_OBJ_NULL); + } else if (out_sz == MP_STREAM_ERROR) { + // errcode is valid + if (mp_is_nonblocking_error(errcode)) { + nlr_pop(); + } else { + mp_raise_OSError(errcode); + } } else { - mp_buffer_info_t bufinfo; - mp_get_buffer_raise(MP_STATE_VM(dupterm_arr_obj), &bufinfo, MP_BUFFER_READ); + // read 1 byte nlr_pop(); - if (*(byte*)bufinfo.buf == mp_interrupt_char) { + if (buf[0] == mp_interrupt_char) { // Signal keyboard interrupt to be raised as soon as the VM resumes mp_keyboard_interrupt(); return -2; } - return *(byte*)bufinfo.buf; + return buf[0]; } } else { mp_uos_deactivate(idx, "dupterm: Exception in read() method, deactivating: ", nlr.ret_val); @@ -96,18 +100,7 @@ void mp_uos_dupterm_tx_strn(const char *str, size_t len) { } nlr_buf_t nlr; if (nlr_push(&nlr) == 0) { - mp_obj_t write_m[3]; - mp_load_method(MP_STATE_VM(dupterm_objs[idx]), MP_QSTR_write, write_m); - - mp_obj_array_t *arr = MP_OBJ_TO_PTR(MP_STATE_VM(dupterm_arr_obj)); - void *org_items = arr->items; - arr->items = (void*)str; - arr->len = len; - write_m[2] = MP_STATE_VM(dupterm_arr_obj); - mp_call_method_n_kw(1, 0, write_m); - arr = MP_OBJ_TO_PTR(MP_STATE_VM(dupterm_arr_obj)); - arr->items = org_items; - arr->len = 1; + mp_stream_write(MP_STATE_VM(dupterm_objs[idx]), str, len, MP_STREAM_RW_WRITE); nlr_pop(); } else { mp_uos_deactivate(idx, "dupterm: Exception in write() method, deactivating: ", nlr.ret_val); @@ -133,9 +126,6 @@ STATIC mp_obj_t mp_uos_dupterm(size_t n_args, const mp_obj_t *args) { MP_STATE_VM(dupterm_objs[idx]) = MP_OBJ_NULL; } else { MP_STATE_VM(dupterm_objs[idx]) = args[0]; - if (MP_STATE_VM(dupterm_arr_obj) == MP_OBJ_NULL) { - MP_STATE_VM(dupterm_arr_obj) = mp_obj_new_bytearray(1, ""); - } } return previous_obj; |