ESP32 Forum

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if (get_connected() == EC_SUCCESS){
    xTaskCreatePinnedToCore(&testcurl, "testcurl", 10000, NULL, 5, NULL, 0);
}

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#ifndef _wifi_utils_h
#define _wifi_utils_h

#include "esp_wifi.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "freertos/task.h"
#include "esp_event_loop.h"
#include "esp_log.h"


/* log tag */
static char tag[] = "wifi";

typedef enum {
    EC_SUCCESS,
    EC_FAILURE,
    EC_OVERFLOW,
    EC_UNDERFLOW,
    EC_INCONVERTIBLE
} result_error_code;

void initialise_wifi(void);
result_error_code get_connected ();
static esp_err_t event_handler(void *ctx, system_event_t *event);

#endif

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#include "wifi_utils.h"

/* The examples use simple WiFi configuration that you can set via
   'make menuconfig'.

   If you'd rather not, just change the below entries to strings with
   the config you want - ie #define EXAMPLE_WIFI_SSID "mywifissid"
*/
#define EXAMPLE_WIFI_SSID CONFIG_WIFI_SSID
#define EXAMPLE_WIFI_PASS CONFIG_WIFI_PASSWORD

/* FreeRTOS event group to signal when we are connected & ready to make a request */
static EventGroupHandle_t wifi_event_group;

/* The event group allows multiple bits for each event,
   but we only care about one event - are we connected
   to the AP with an IP? */
const int CONNECTED_BIT = BIT0;


static esp_err_t event_handler(void *ctx, system_event_t *event)
{
    switch(event->event_id) {
    case SYSTEM_EVENT_STA_START:
        esp_wifi_connect();
        break;
    case SYSTEM_EVENT_STA_GOT_IP:
        xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
        break;
    case SYSTEM_EVENT_STA_DISCONNECTED:
        /* This is a workaround as ESP32 WiFi libs don't currently
           auto-reassociate. */
        esp_wifi_connect();
        xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
        break;
    default:
        break;
    }
    return ESP_OK;
}


void initialise_wifi(void)
{
    tcpip_adapter_init();
    wifi_event_group = xEventGroupCreate();
    ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
    ESP_ERROR_CHECK(esp_wifi_init(&cfg));
    ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
    wifi_config_t wifi_config = {
        .sta = {
            .ssid = EXAMPLE_WIFI_SSID,
            .password = EXAMPLE_WIFI_PASS,
        },
    };
    ESP_LOGI(tag, "Setting WiFi configuration SSID %s...", wifi_config.sta.ssid);
    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
    ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
    ESP_ERROR_CHECK(esp_wifi_start());
}


result_error_code get_connected () {
    EventBits_t evg_bits;

    evg_bits = xEventGroupGetBits(wifi_event_group);

    if (!(evg_bits & CONNECTED_BIT)) {
        ESP_LOGI(tag, "get_connected: not connected, trying esp_wifi_connect()");
        esp_wifi_connect();
    }

    evg_bits = xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
    
    if (evg_bits & CONNECTED_BIT) {
		ESP_LOGI(tag, "get_connected: connected!");
		return EC_SUCCESS;
	} else {
        ESP_LOGI(tag, "get_connected: ERROR: Couldn't connect.  Cancelling push notification");
        return EC_FAILURE;
    }
}

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/esp/project/components/curl/lib/curl_ntlm_wb.c: In function 'Curl_ntlm_wb_cleanup':
/esp/project/components/curl/lib/curl_ntlm_wb.c:91:9: error: implicit declaration of function 'kill' [-Werror=implicit-function-declaration]
         kill(conn->ntlm_auth_hlpr_pid, SIGTERM);
         ^
/esp/project/components/curl/lib/curl_ntlm_wb.c: In function 'ntlm_wb_init':
/esp/project/components/curl/lib/curl_ntlm_wb.c:187:6: error: implicit declaration of function 'socketpair' [-Werror=implicit-function-declaration]
   if(socketpair(AF_UNIX, SOCK_STREAM, 0, sockfds)) {
      ^
/esp/project/components/curl/lib/curl_ntlm_wb.c:187:17: error: 'AF_UNIX' undeclared (first use in this function)
   if(socketpair(AF_UNIX, SOCK_STREAM, 0, sockfds)) {
                 ^
/esp/project/components/curl/lib/curl_ntlm_wb.c:187:17: note: each undeclared identifier is reported only once for each function it appears in
cc1: some warnings being treated as errors
/esp/esp-idf/make/component_wrapper.mk:176: recipe for target 'lib/curl_ntlm_wb.o' failed
make[1]: *** [lib/curl_ntlm_wb.o] Error 1
/esp/esp-idf/make/project.mk:386: recipe for target 'curl-build' failed
make: *** [curl-build] Error 2