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esp8266/esp_mphal: call_dupterm_read: Use readinto() method.

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It's memory fragmentation hazard to allocate 1-char string each time by
calling read() method.
This commit is contained in:
Paul Sokolovsky 2016-07-04 21:34:40 +03:00
parent e07ef8f1a2
commit a22b6ebff1
1 changed files with 5 additions and 5 deletions
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10
esp8266/esp_mphal.c
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@ -161,16 +161,16 @@ static int call_dupterm_read(void) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t read_m[3];
mp_load_method(MP_STATE_PORT(term_obj), MP_QSTR_read, read_m);
read_m[2] = MP_OBJ_NEW_SMALL_INT(1);
mp_obj_t res = mp_call_method_n_kw(1, 0, read_m);
mp_obj_t readinto_m[3];
mp_load_method(MP_STATE_PORT(term_obj), MP_QSTR_readinto, readinto_m);
readinto_m[2] = MP_STATE_PORT(dupterm_arr_obj);
mp_obj_t res = mp_call_method_n_kw(1, 0, readinto_m);
if (res == mp_const_none) {
nlr_pop();
return -2;
}
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(res, &bufinfo, MP_BUFFER_READ);
mp_get_buffer_raise(MP_STATE_PORT(dupterm_arr_obj), &bufinfo, MP_BUFFER_READ);
if (bufinfo.len == 0) {
mp_uos_deactivate("dupterm: EOF received, deactivating\n", MP_OBJ_NULL);
nlr_pop();