[BCM943364WCD1]玩转TCP Client

icylinker

一、目标
      TCP Server程序跑通，监听端口8888
       收到客户端的信息，再原文转发给客户端。
二、 大概流程
      上上一篇经验完成了获取IP的功能，上一篇完成了TCP Server。接下来的流程：
       1、创建TCP SOCKET
       2、绑定本地端口8888
       3、连接服务器IP端口
       4、连接成功后执行下面两个步骤
       5、建立PACKET
       6、发送PACKET
三、 具体代码
  创建SOCKET和连接服务器
/* Create a TCP server socket */if ( wiced_tcp_create_socket( &tcp_client_socket, WICED_STA_INTERFACE ) != WICED_SUCCESS ){        WPRINT_APP_INFO( ("TCP socket creation failed\r\n") );}ret = wiced_tcp_bind(&tcp_client_socket, TCP_CLINET_BIND_PORT);if(ret == WICED_SUCCESS){        server_ip.ip.v4 = MAKE_IPV4_ADDRESS(172,16,8,199);        server_ip.version = WICED_IPV4;        do        {                ret = wiced_tcp_connect(&tcp_client_socket, &server_ip, TCP_SERVER_CONN_PORT, TCP_CONN_TIME_OUT);                count_err++;        }while(ret != WICED_SUCCESS && count_err < TCP_CONN_ERR_MAX);if(ret != WICED_SUCCESS){        WPRINT_APP_INFO(("connnect err\n"));}else{        WPRINT_APP_INFO(("connnect ok\n"));                        stNetworkInfo.stTcpStatus = 2;}   周期性发送数据
if(stNetworkInfo.stTcpStatus == 2){        wiced_rtos_delay_milliseconds(5000);        WPRINT_APP_INFO(("CLIENT->EEBOARD.ICYLINKER\n"));        wiced_packet_create_tcp(&tcp_client_socket, TCP_PACKET_MAX_DATA_LENGTH, &client_packet, &client_data, &client_available_space);        wiced_packet_set_data_end(client_packet, (uint8_t *)client_data + strlen(TCP_CLIENT_SEND_STR));        sprintf(client_data, "%s", TCP_CLIENT_SEND_STR);        if (wiced_tcp_send_packet(&tcp_client_socket, client_packet) != WICED_SUCCESS)    {        WPRINT_APP_INFO(("TCP packet send failed\n"));        /* Delete packet, since the send failed */        wiced_packet_delete(client_packet);        /* Close the connection */        wiced_tcp_disconnect(&tcp_client_socket);        stNetworkInfo.stTcpStatus = 3;    }        else        {                wiced_packet_delete(client_packet);        }}四、测试结果