xTaskCreate((TaskFunction_t)app_tcp_client, (const char *)"app_tcp_client", (uint16_t)TCP_SERVER_TASK_STK_SIZE, (void *)NULL, (UBaseType_t)TCP_CLIENT_TASK_PRIO, (TaskHandle_t *)&app_tcp_client_task_handle); static void app_tcp_client(void *arg) { char rx_buffer[128]; char host_ip[] = HOST_IP_ADDR; int addr_family = 0; int ip_protocol = 0; while (1) { struct sockaddr_in dest_addr; inet_pton(AF_INET, host_ip, &dest_addr.sin_addr); dest_addr.sin_family = AF_INET; dest_addr.sin_port = htons(CLIENTPORT); addr_family = AF_INET; ip_protocol = IPPROTO_IP; int sock = socket(addr_family, SOCK_STREAM, ip_protocol); if (sock < 0) { ESP_LOGE(TAG, "Unable to create socket: errno %d", errno); break; } ESP_LOGI(TAG, "Socket created, connecting to %s:%d", host_ip, CLIENTPORT); int err = connect(sock, (struct sockaddr *)&dest_addr, sizeof(dest_addr)); if (err != 0) { ESP_LOGE(TAG, "Socket unable to connect: errno %d", errno); break; } ESP_LOGI(TAG, "Successfully connected"); while (1) { int err = send(sock, payload, strlen(payload), 0); if (err < 0) { ESP_LOGE(TAG, "Error occurred during sending: errno %d", errno); break; } int len = recv(sock, rx_buffer, sizeof(rx_buffer) - 1, 0); // Error occurred during receiving if (len < 0) { ESP_LOGE(TAG, "recv failed: errno %d", errno); break; } // Data received else { rx_buffer[len] = 0; // Null-terminate whatever we received and treat like a string ESP_LOGI(TAG, "Received %d bytes from %s:", len, host_ip); ESP_LOGI(TAG, "%s", rx_buffer); } } if (sock != -1) { ESP_LOGE(TAG, "Shutting down socket and restarting..."); shutdown(sock, 0); close(sock); } } }
标签:tcpclient,addr,ESP,errno,esp32,sock,TAG,ip,重启 From: https://www.cnblogs.com/hshy/p/16642308.html