bring back ctrl message in http_server - part#1

components/wifi-manager/_esp_httpd_main.c

@@ -76,7 +76,24 @@ static esp_err_t _httpd_server_init(struct httpd_data *hd)
         return ESP_FAIL;
     }
 
+    int ctrl_fd = cs_create_ctrl_sock(hd->config.ctrl_port);
+    if (ctrl_fd < 0) {
+        ESP_LOGE(TAG, LOG_FMT("error in creating ctrl socket (%d)"), errno);
+        close(fd);
+        return ESP_FAIL;
+    }
+
+    int msg_fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+    if (msg_fd < 0) {
+        ESP_LOGE(TAG, LOG_FMT("error in creating msg socket (%d)"), errno);
+        close(fd);
+        close(ctrl_fd);
+        return ESP_FAIL;
+    }
+
     hd->listen_fd = fd;
+    hd->ctrl_fd = ctrl_fd;
+    hd->msg_fd  = msg_fd;
     return ESP_OK;
 }
 
@@ -148,6 +165,16 @@ static esp_err_t _httpd_server(struct httpd_data *hd)
         return ESP_OK;
     }
 
+    /* Case0: Do we have a control message? */
+    if (FD_ISSET(hd->ctrl_fd, &read_set)) {
+        ESP_LOGD(TAG, LOG_FMT("processing ctrl message"));
+        _httpd_process_ctrl_msg(hd);
+        if (hd->hd_td.status == THREAD_STOPPING) {
+            ESP_LOGD(TAG, LOG_FMT("stopping thread"));
+            return ESP_FAIL;
+        }
+    }
+
     /* Case1: Do we have any activity on the current data
      * sessions? */
     int fd = -1;
@@ -200,6 +227,8 @@ static void _httpd_thread(void *arg)
     }
 
     ESP_LOGD(TAG, LOG_FMT("web server exiting"));
+    close(hd->msg_fd);
+    cs_free_ctrl_sock(hd->ctrl_fd);
     _httpd_close_all_sessions(hd);
     close(hd->listen_fd);
     hd->hd_td.status = THREAD_STOPPED;