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espressif ping: reduce wait time on failure^

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This commit is contained in:
Dan Halbert 2024-06-18 15:53:21 -04:00
parent 17c4e9c864
commit a004c1685e
2 changed files with 11 additions and 9 deletions
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13
ports/espressif/common-hal/wifi/Radio.c
View file

@ -554,21 +554,18 @@ mp_int_t common_hal_wifi_radio_ping(wifi_radio_obj_t *self, mp_obj_t ip_address,
// ESP-IDF creates a task to do the ping session. It shuts down when done, but only after a one second delay.
// Calling common_hal_wifi_radio_ping() too fast will cause resource exhaustion.
esp_ping_handle_t ping;
esp_err_t ret;
for (size_t tries = 1; tries <= 5; tries++) {
ret = esp_ping_new_session(&ping_config, &ping_callbacks, &ping);
if (ret == ESP_OK) {
break;
}
if (esp_ping_new_session(&ping_config, &ping_callbacks, &ping) != ESP_OK) {
// Wait for old task to go away and then try again.
// Empirical testing shows we have to wait at least two seconds, despite the task
// having a one-second timeout.
common_hal_time_delay_ms(2000);
// Return if interrupted now, to show the interruption as KeyboardInterrupt instead of the
// IDF error.
if (mp_hal_is_interrupted()) {
return -1;
return (uint32_t)(-1);
}
CHECK_ESP_RESULT(esp_ping_new_session(&ping_config, &ping_callbacks, &ping));
}
CHECK_ESP_RESULT(ret);
esp_ping_start(ping);

7
shared-bindings/wifi/Radio.c
View file

@ -698,7 +698,12 @@ MP_PROPERTY_GETTER(wifi_radio_ap_info_obj,
//| self, ip: ipaddress.IPv4Address, *, timeout: Optional[float] = 0.5
//| ) -> Optional[float]:
//| """Ping an IP to test connectivity. Returns echo time in seconds.
//| Returns None when it times out."""
//| Returns None when it times out.
//|
//| **Limitations:** On Espressif, calling `ping()` multiple times rapidly
//| exhausts available resources after several calls. Rather than failing at that point, `ping()`
//| will wait two seconds for enough resources to be freed up before proceeding.
//| """
//| ...
//|
static mp_obj_t wifi_radio_ping(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {