When I Learning your project, I have some questions

[WangShuoran]

In your main/src/core/os.c, I find some code:

    ESP_ERROR_CHECK(esp_event_loop_create_default());

    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, ESP_EVENT_ANY_ID, &ip_event_handler, NULL));
    ESP_ERROR_CHECK(esp_event_handler_register(SC_EVENT, ESP_EVENT_ANY_ID, &sc_event_handler, NULL));

Those mean create a default event loop, and put any event to this loop.

I want to know WIFI_EVENT, IP_EVENT, SC_EVENT mean what, I can't check with IDE "Go to definition" or "Go to declaration"

I google of this, I see in this website he also set same name to this position.

I want to know want it is?

The manual is this:

when I try to go to definition:

And when I learn freertos, in xTaskCreate also set pcName as string. Does those is one type thing?

Thank you!

[redchenjs]

Hi @WangShuoran, WIFI_EVENT is defined here: esp-idf/components/esp_wifi/include/esp_wifi_types.h#L610

You can also take a look at this: https://github.com/espressif/esp-idf/blob/3aeb80acb66038f14fc2a7606e7516a3e2bfa6c9/docs/en/api-reference/system/esp_event.rst

[WangShuoran]

I understand, Thank you for confirmation.

the pass code is setting the esp_event_handler_instance_register needed first parameter:

ESP_EVENT_DECLARE_BASE(WIFI_EVENT);
......
esp_event_handler_instance_register(WIFI_EVENT, ...);

Thank you again!